Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 21
Filtrar
1.
Arq. bras. oftalmol ; Arq. bras. oftalmol;85(3): 309-319, May-June 2022. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1383803

RESUMEN

ABSTRACT Dermal filler injection is among facial rejuvenation treatments that have been increasingly used. Despite being a minimally invasive procedure, it can lead to severe complications such as blindness. A review of all cases of filler- -induced visual loss in the world literature was conducted to summarize the mechanisms, anatomical considerations, and clinical ophthalmologic course, current strategies of prevention and management, and trends over the years. We identified 233 cases of filler-induced visual loss, and 172 patients had a severe visual impairment in at least one eye. The typical patients are young women who received injections of hyaluronic acid or autologous fat in the glabella or nose, and the typical presentations were sudden ocular pain, ptosis, and ophthalmoplegia due to vascular occlusion. The findings of this study also suggest an increase in the number of unlicensed professionals performing the procedure. Even though the continued development of dermal fillers has improved the treatment options available, further studies and strategies are necessary to reduce the incidence and minimize the consequences of filler-induced visual loss.


RESUMO O uso de preenchedores dérmicos é uma prática bem estabelecida de rejuvenescimento facial. Embora seja um procedimento minimamente invasivo, pode levar a complicações graves como cegueira. Uma revisão de casos de perda visual pós preenchimento facial estético foi conduzida para descrever os mecanismos, considerações anatômicas, quadro oftalmológico, atuais estratégias de prevenção e manejo, e tendências ao longo dos anos. Foram identificados 233 casos, e 172 pacientes tiveram ao menos um olho com baixa visão ao final do seguimento. O paciente típico é uma mulher jovem submetida a preenchimento de ácido hialurônico na glabela ou nariz, apresentando dor ocular súbita, ptose e oftalmoplegia devido à oclusão vascular. Este estudo também destaca um possível aumento de profissionais não habilitados realizando este procedimento. Apesar do contínuo desenvolvimento dos preenchedores dérmicos e aprimoramento das opções de tratamento disponíveis, mais estudos e estratégias são necessários para reduzir a incidência de complicações e minimizar suas consequências.

2.
Arq Bras Oftalmol ; 85(3): 309-319, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34852044

RESUMEN

Dermal filler injection is among facial rejuvenation treatments that have been increasingly used. Despite being a minimally invasive procedure, it can lead to severe complications such as blindness. A review of all cases of filler- -induced visual loss in the world literature was conducted to summarize the mechanisms, anatomical considerations, and clinical ophthalmologic course, current strategies of prevention and management, and trends over the years. We identified 233 cases of filler-induced visual loss, and 172 patients had a severe visual impairment in at least one eye. The typical patients are young women who received injections of hyaluronic acid or autologous fat in the glabella or nose, and the typical presentations were sudden ocular pain, ptosis, and ophthalmoplegia due to vascular occlusion. The findings of this study also suggest an increase in the number of unlicensed professionals performing the procedure. Even though the continued development of dermal fillers has improved the treatment options available, further studies and strategies are necessary to reduce the incidence and minimize the consequences of filler-induced visual loss.


Asunto(s)
Técnicas Cosméticas , Ceguera/inducido químicamente , Ceguera/prevención & control , Técnicas Cosméticas/efectos adversos , Estética , Cara , Femenino , Humanos , Ácido Hialurónico/efectos adversos , Trastornos de la Visión/etiología
3.
Rev. bras. oftalmol ; 81: e0033, 2022. tab, graf
Artículo en Portugués | LILACS | ID: biblio-1376776

RESUMEN

RESUMO A obstrução de via lacrimal é uma possível complicação decorrente de tratamentos oncológicos sistêmicos e locais. A epífora crônica gera grande impacto na qualidade de vida desses pacientes, e, como a fibrose terminal da via lacrimal pode necessitar de procedimentos complexos para sua resolução, é importante estarmos atentos a esse efeito adverso, com o objetivo de reconhecê-lo e tratá-lo precocemente, ou mesmo preveni-lo. Nesta revisão da literatura, os autores analisam todos os agentes quimioterápicos e radioterápicos associados à obstrução lacrimal e descrevem os mecanismos, a frequência, os tratamentos e a profilaxia. Os tratamentos oncológicos associados à obstrução lacrimal foram: radioterapia em cabeça e pescoço (dosagem acima de 45 a 75Gy), radioiodoterapia (dosagem acima de 150mCi) e quimioterapia com 5-FU, S-1, capecitabine e docetaxel. A obstrução lacrimal pode ser irreversível, e a intubação profilática das vias lacrimais é uma possibilidade descrita de tratamento profilático em casos de radioterapia e uso do 5-FU, S-1 e docetaxel. O tratamento cirúrgico de todos os casos é a dacriocistorrinostomia.


ABSTRACT Lacrimal duct obstruction can be a side effect of systemic and/or local cancer treatments. Chronic epiphora has a great impact on the quality of life of oncological patients. Since terminal fibrosis of the lacrimal system may require complex procedures, it is important to be aware of this adverse effect in order to recognize and treat it, or even prevent it. A literature review was performed to identify all types of systemic cancer treatment associated with lacrimal obstruction and to describe the mechanisms, frequency, treatment, and prophylaxis. The oncological treatments associated with lacrimal obstruction were head and neck radiotherapy (dosage above 45-75 Gy), radioiodine therapy (dosage above 150 mCi), and chemotherapy with 5-FU, S-1, Capecitabine and Docetaxel. Depending on the dose, this complication may be irreversible. Prophylactic intubation of the lacrimal system is an option for prophylaxis in cases of radiotherapy, use of 5-FU, S-1, and Docetaxel. Final surgical treatment is dacryocystorhinostomy.


Asunto(s)
Humanos , Radioterapia/efectos adversos , Radioisótopos de Yodo/efectos adversos , Obstrucción del Conducto Lagrimal/etiología , Obstrucción del Conducto Lagrimal/inducido químicamente , Obstrucción del Conducto Lagrimal/terapia , Antineoplásicos/efectos adversos , Dacriocistorrinostomía , Drenaje , Constricción Patológica/etiología , Enfermedades del Aparato Lagrimal/prevención & control , Conducto Nasolagrimal/efectos de los fármacos , Conducto Nasolagrimal/efectos de la radiación
4.
Clinics (Sao Paulo) ; 76: e2913, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34287482

RESUMEN

OBJECTIVES: To test conjunctival swabs from patients with laboratory-confirmed severe forms of coronavirus disease 2019 (COVID-19) for the presence of SARS-CoV-2 on real-time reverse-transcription polymerase chain reaction (rRT-PCR). METHODS: Fifty conjunctival swabs were collected from 50 in-patients with laboratory-confirmed severe forms of COVID-19 at the largest teaching hospital and referral center in Brazil (HCFMUSP, São Paulo, SP). The samples were tested for SARS-CoV-2 on rRT-PCR with the primers and probes described in the CDC protocol which amplify the region of the nucleocapsid N gene (2019_nCoV_N1 and 2019_nCoV_N2) of SARS-CoV-2 RNA and compared with naso/oropharyngeal swabs collected within 24 hours of the conjunctival swabs. RESULTS: Five conjunctival samples (10%) tested positive (amplification of the N1 and N2 primer/probe sets) while two conjunctival samples (4%) yielded inconclusive results (amplification of the N1 primer/probe set only). The naso/oropharyngeal swabs were positive for SARS-CoV-2 on rRT-PCR in 34 patients (68%), negative in 14 (28%) and inconclusive in 2 (4%). The 5 patients with positive conjunctival swabs had positive (n=2), negative (n=2) or inconclusive (n=1) naso/oropharyngeal swabs on rRT-PCR. Patients with negative or inconclusive naso/oropharyngeal swabs had the diagnosis of COVID-19 confirmed by previous positive rRT-PCR results or by serology. CONCLUSION: This is the first study to present conjunctival swab rRT-PCR results for SARS-CoV-2 in a Brazilian population. In our sample of 50 patients with severe forms of COVID-19, 10% had positive conjunctival swabs, most of which were correlated with positive naso/oropharyngeal rRT-PCR results.


Asunto(s)
COVID-19 , Brasil , Humanos , ARN Viral , Reacción en Cadena en Tiempo Real de la Polimerasa , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Transcripción Reversa , SARS-CoV-2
5.
Int J Retina Vitreous ; 7(1): 14, 2021 Feb 16.
Artículo en Inglés | MEDLINE | ID: mdl-33593443

RESUMEN

BACKGROUND: Acute post-cataract endophthalmitis (APE) is a rare complication potentially causing irreversible visual loss. A 10-year study of APE was conducted to determine its incidence, microbiological spectra and antibiotic resistance profile of APE-related pathogens at a major tertiary referral center in Brazil. METHODS: APE cases reported between January 2010 and December 2019 were included. Phacoemulsification and extracapsular cataract techniques were eligible; combined procedures, traumatic and congenital cataract were excluded. Vitreous samples were cultured and antimicrobial resistance was compared for the periods of 2010-2014 and 2015-2019. The results were analyzed with Fisher's exact test. RESULTS: Our sample consisted of 40,491 cataract surgeries and 51 (0.126%) APE cases. Culture was positive in 35 cases (71.4%), of which 31 (88.6%) Gram-positive, 3 (8.6%) Gram-negative, and 1 (2.9%) fungal. The most frequently isolated organism was Staphylococcus epidermidis (n = 17/35, 48.6%), followed by Staphylococcus aureus (n = 4/35, 11.4%). From 2010-2014 to 2015-2019, antimicrobial resistance increased against moxifloxacin (11.1-54.5%, p = 0.07), ciprofloxacin (54.5-72.7%, p = 0.659) and oxacillin (66.7-93.3%, p = 0.13). CONCLUSIONS: The observed incidence and microbial spectra were compatible with previous studies. A trend towards growing moxifloxacin and ciprofloxacin resistance was observed. Surveillance remains crucial to prevent treatment failure from antimicrobial resistance.

6.
Clinics ; Clinics;76: e2913, 2021. tab
Artículo en Inglés | LILACS | ID: biblio-1286071

RESUMEN

OBJECTIVES: To test conjunctival swabs from patients with laboratory-confirmed severe forms of coronavirus disease 2019 (COVID-19) for the presence of SARS-CoV-2 on real-time reverse-transcription polymerase chain reaction (rRT-PCR). METHODS: Fifty conjunctival swabs were collected from 50 in-patients with laboratory-confirmed severe forms of COVID-19 at the largest teaching hospital and referral center in Brazil (HCFMUSP, São Paulo, SP). The samples were tested for SARS-CoV-2 on rRT-PCR with the primers and probes described in the CDC protocol which amplify the region of the nucleocapsid N gene (2019_nCoV_N1 and 2019_nCoV_N2) of SARS-CoV-2 RNA and compared with naso/oropharyngeal swabs collected within 24 hours of the conjunctival swabs. RESULTS: Five conjunctival samples (10%) tested positive (amplification of the N1 and N2 primer/probe sets) while two conjunctival samples (4%) yielded inconclusive results (amplification of the N1 primer/probe set only). The naso/oropharyngeal swabs were positive for SARS-CoV-2 on rRT-PCR in 34 patients (68%), negative in 14 (28%) and inconclusive in 2 (4%). The 5 patients with positive conjunctival swabs had positive (n=2), negative (n=2) or inconclusive (n=1) naso/oropharyngeal swabs on rRT-PCR. Patients with negative or inconclusive naso/oropharyngeal swabs had the diagnosis of COVID-19 confirmed by previous positive rRT-PCR results or by serology. CONCLUSION: This is the first study to present conjunctival swab rRT-PCR results for SARS-CoV-2 in a Brazilian population. In our sample of 50 patients with severe forms of COVID-19, 10% had positive conjunctival swabs, most of which were correlated with positive naso/oropharyngeal rRT-PCR results.


Asunto(s)
Humanos , COVID-19 , Brasil , ARN Viral , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Transcripción Reversa , Reacción en Cadena en Tiempo Real de la Polimerasa , SARS-CoV-2
7.
Clinics (Sao Paulo) ; 74: e837, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30970119

RESUMEN

OBJECTIVE: To report our experience using conventional culture methods (CM) and pediatric blood culture bottles (PBCBs) for vitreous sample culture of acute postoperative endophthalmitis. METHODS: A retrospective study was conducted at the Department of Ophthalmology, Hospital das Clinicas, HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, BR, from January 2010 to December 2015, and it included 54 patients with clinically suspected acute postoperative endophthalmitis. Vitreous samples were obtained by vitreous tap or vitrectomy. Samples from January 2010 to December 2011 were cultivated in CM, whereas samples from January 2012 to December 2015 were inoculated in PBCBs. The measured outcome was the yield of positive cultures. RESULTS: Twenty cases were included in the CM group, and 34 cases were included in the PBCB group. The yield of positive cultures in PBCBs (64.7%) was significantly higher than that in conventional CM (35%, p=0.034). Staphylococcus epidermidis and Streptococcus viridans were the two most commonly found agents. CONCLUSION: PBCBs can be used successfully in clinically suspected endophthalmitis. The method showed a higher yield of positive cultures than the conventional method. This technique appears to have several advantages over the traditional method: it saves time, as only one medium needs to be inoculated; transportation to a laboratory is easier than in the traditional method, and there is no need to maintain a supply of fresh agar media. The use of PBCBs may be recommended as the primary method for microbiological diagnosis and is especially suitable for office settings and remote clinics.


Asunto(s)
Cultivo de Sangre/instrumentación , Medios de Cultivo/normas , Endoftalmitis/diagnóstico , Complicaciones Posoperatorias/diagnóstico , Staphylococcus epidermidis/aislamiento & purificación , Estreptococos Viridans/aislamiento & purificación , Enfermedad Aguda , Cultivo de Sangre/métodos , Niño , Humanos , Pruebas de Sensibilidad Microbiana/métodos , Estudios Retrospectivos , Cuerpo Vítreo/microbiología
8.
Clinics ; Clinics;74: e837, 2019. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1001824

RESUMEN

OBJECTIVE: To report our experience using conventional culture methods (CM) and pediatric blood culture bottles (PBCBs) for vitreous sample culture of acute postoperative endophthalmitis. METHODS: A retrospective study was conducted at the Department of Ophthalmology, Hospital das Clinicas, HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, BR, from January 2010 to December 2015, and it included 54 patients with clinically suspected acute postoperative endophthalmitis. Vitreous samples were obtained by vitreous tap or vitrectomy. Samples from January 2010 to December 2011 were cultivated in CM, whereas samples from January 2012 to December 2015 were inoculated in PBCBs. The measured outcome was the yield of positive cultures. RESULTS: Twenty cases were included in the CM group, and 34 cases were included in the PBCB group. The yield of positive cultures in PBCBs (64.7%) was significantly higher than that in conventional CM (35%, p=0.034). Staphylococcus epidermidis and Streptococcus viridans were the two most commonly found agents. CONCLUSION: PBCBs can be used successfully in clinically suspected endophthalmitis. The method showed a higher yield of positive cultures than the conventional method. This technique appears to have several advantages over the traditional method: it saves time, as only one medium needs to be inoculated; transportation to a laboratory is easier than in the traditional method, and there is no need to maintain a supply of fresh agar media. The use of PBCBs may be recommended as the primary method for microbiological diagnosis and is especially suitable for office settings and remote clinics.


Asunto(s)
Humanos , Niño , Complicaciones Posoperatorias/diagnóstico , Staphylococcus epidermidis/aislamiento & purificación , Endoftalmitis/diagnóstico , Medios de Cultivo/normas , Estreptococos Viridans/aislamiento & purificación , Cultivo de Sangre/instrumentación , Cuerpo Vítreo/microbiología , Pruebas de Sensibilidad Microbiana/métodos , Enfermedad Aguda , Estudios Retrospectivos , Cultivo de Sangre/métodos
9.
Arq Bras Cir Dig ; 30(3): 169-172, 2017.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-29019555

RESUMEN

BACKGROUND: Laparoscopic totally extraperitoneal (TEP) hernia repair is a technically demanding procedure. Recent studies have identified BMI as an independent factor for technical difficulty in the learning period. AIM: To analyze the effect of overweight and obesity on the technical difficulties of TEP. METHOD: Prospective study on patients who underwent a symptomatic inguinal hernia by means of the TEP technique. Were analyzed gender, BMI, previous surgery, hernia type, operative time and complications. Technical difficulty was defined by operative time, major complications and recurrence. Patients were classified into four groups: 1) underweight, if less than 18,5 kg/m²; 2) normal range if BMI between 18,5 and 24,9 kg/m²; 3) overweight if BMI between 25-29,9 kg/m²; and 4) obese if BMI≥30 kg/m². RESULTS: The cohort had a total of 190 patients, 185 men and 5 women. BMI values ranged from 16-36 kg/m² (average 26 kg/m²). Average operating time was 55.4 min in bilateral hernia (15-150) and 37.8 min in unilateral (13-150). Time of surgery was statistically correlated with increased BMI in the first 93 patients (p=0.049). CONCLUSION: High BMI and prolonged operative time are undoubtedly correlated. However, this relationship may be statistically significant only in the learning period. Although several clinical features can influence surgical time, upon reaching an experienced level, surgeons appear to easily handle the challenges.


Asunto(s)
Competencia Clínica , Hernia Inguinal/complicaciones , Hernia Inguinal/cirugía , Herniorrafia/métodos , Laparoscopía , Obesidad/complicaciones , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Sobrepeso/complicaciones , Peritoneo , Estudios Prospectivos , Adulto Joven
10.
Head Neck ; 39(12): 2381-2396, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-28945293

RESUMEN

BACKGROUND: Some complications of radioiodine therapy have been reported, but the involvement of the eyes and adnexa is rarely discussed. The purpose of this study was to determine the correlation among ocular surface changes, xerostomia, and changes in the nasal mucosa associated with radioiodine therapy. METHODS: Patients subjected to radioiodine therapy (group 1) or not subjected (group 2) were prospectively evaluated by examinations of the ocular surface and tear film, saliva production, and nasal endoscopy. Ocular and nasal symptoms and xerostomia were evaluated using questionnaires. RESULTS: Evaluation of the ocular surface did not indicate significant differences between the groups. Nasal endoscopy revealed higher mucosal pallor in group 1 and worsening of the endoscopic appearance. Worsening of ocular symptoms and nasal symptoms, xerostomia, and a significant decrease in salivary production was also observed in group 1. CONCLUSION: Subjective worsening of xerostomia, xerophthalmia, nasal symptoms, and changes in the nasal mucosa in group 1 was observed.


Asunto(s)
Adenocarcinoma Folicular/radioterapia , Radioisótopos de Yodo/efectos adversos , Órganos en Riesgo/efectos de la radiación , Neoplasias de la Tiroides/radioterapia , Xerostomía/etiología , Adenocarcinoma Folicular/patología , Adulto , Anciano , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Radioisótopos de Yodo/uso terapéutico , Aparato Lagrimal/efectos de la radiación , Masculino , Persona de Mediana Edad , Mucosa Nasal/efectos de la radiación , Estudios Prospectivos , Traumatismos por Radiación/diagnóstico , Traumatismos por Radiación/epidemiología , Medición de Riesgo , Glándulas Salivales/efectos de la radiación , Neoplasias de la Tiroides/patología , Xeroftalmia/etiología , Xeroftalmia/fisiopatología , Xerostomía/fisiopatología
11.
ABCD (São Paulo, Impr.) ; 30(3): 169-172, July-Sept. 2017. tab, graf
Artículo en Inglés | LILACS | ID: biblio-885730

RESUMEN

ABSTRACT Background: Laparoscopic totally extraperitoneal (TEP) hernia repair is a technically demanding procedure. Recent studies have identified BMI as an independent factor for technical difficulty in the learning period. Aim: To analyze the effect of overweight and obesity on the technical difficulties of TEP. Method: Prospective study on patients who underwent a symptomatic inguinal hernia by means of the TEP technique. Were analyzed gender, BMI, previous surgery, hernia type, operative time and complications. Technical difficulty was defined by operative time, major complications and recurrence. Patients were classified into four groups: 1) underweight, if less than 18,5 kg/m²; 2) normal range if BMI between 18,5 and 24,9 kg/m²; 3) overweight if BMI between 25-29,9 kg/m²; and 4) obese if BMI≥30 kg/m². Results: The cohort had a total of 190 patients, 185 men and 5 women. BMI values ranged from 16-36 kg/m² (average 26 kg/m²). Average operating time was 55.4 min in bilateral hernia (15-150) and 37.8 min in unilateral (13-150). Time of surgery was statistically correlated with increased BMI in the first 93 patients (p=0.049). Conclusion: High BMI and prolonged operative time are undoubtedly correlated. However, this relationship may be statistically significant only in the learning period. Although several clinical features can influence surgical time, upon reaching an experienced level, surgeons appear to easily handle the challenges.


RESUMO Racional: A hernioplastia laparoscópica totalmente extraperitoneal (TEP) é procedimento tecnicamente exigente. Estudos recentes identificaram o IMC como um fator independente para a dificuldade técnica durante o período de aprendizagem. Objetivo: Analisar o efeito do sobrepeso e da obesidade sobre as dificuldades técnicas na TEP. Método: Estudo prospectivo em pacientes submetidos à hernioplastia inguinal sintomática por meio da TEP. Foram analisados gênero, IMC, operação prévia, tipo de hérnia, tempo operatório e presença de complicações. A dificuldade técnica foi definida pelo tempo operatório, complicações maiores e recorrência. Os pacientes foram classificados em quatro grupos: 1) baixo peso, se menor que 18,5 kg/m²; 2) peso normal se IMC entre 18,5 e 24,9 kg/m²; 3) sobrepeso se IMC entre 25 e 29,9 kg/m²; e 4) obesos se IMC≥30 kg/m². Resultados: A coorte incluiu 190 pacientes, 185 homens e cinco mulheres. Os valores de IMC variaram de 16-36 kg/m² (média de 26 kg/m²). O tempo médio de operação foi de 55,4 min nas hérnias bilaterais (15-150) e 37,8 min nas unilaterais (13-150). O tempo cirúrgico foi estatisticamente correlacionado com o aumento do IMC nos primeiros 93 pacientes (p=0,049). Conclusão: IMC elevado e tempo operatório prolongado estão indubitavelmente correlacionados. No entanto, esta relação pode ser estatisticamente significativa apenas no período de aprendizagem. Embora várias características clínicas possam influenciar o tempo cirúrgico, ao chegar a um nível experiente, os cirurgiões parecem lidar facilmente com os desafios.


Asunto(s)
Humanos , Masculino , Femenino , Niño , Adolescente , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Adulto Joven , Competencia Clínica , Laparoscopía , Herniorrafia/métodos , Hernia Inguinal/cirugía , Hernia Inguinal/complicaciones , Obesidad/complicaciones , Peritoneo , Estudios Prospectivos , Sobrepeso/complicaciones
12.
Clinics (Sao Paulo) ; 72(4): 238-243, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28492724

RESUMEN

Among the innovations for the treatment of type 1 diabetes, islet transplantation is a less invasive method of treatment, although it is still in development. One of the greatest barriers to this technique is the low number of pancreas donors and the low number of pancreases that are available for transplantation. Rodent models have been chosen in most studies of islet rejection and type 1 diabetes prevention to evaluate the quality and function of isolated human islets and to identify alternative solutions to the problem of islet scarcity. The purpose of this study is to conduct a review of islet xenotransplantation experiments from humans to rodents, to organize and analyze the parameters of these experiments, to describe trends in experimental modeling and to assess the viability of this procedure. In this study, we reviewed recently published research regarding islet xenotransplantation from humans to rodents, and we summarized the findings and organized the relevant data. The included studies were recent reports that involved xenotransplantation using human islets in a rodent model. We excluded the studies that related to isotransplantation, autotransplantation and allotransplantation. A total of 34 studies that related to xenotransplantation were selected for review based on their relevance and current data. Advances in the use of different graft sites may overcome autoimmunity and rejection after transplantation, which may solve the problem of the scarcity of islet donors in patients with type 1 diabetes.


Asunto(s)
Diabetes Mellitus Experimental/cirugía , Trasplante de Islotes Pancreáticos/métodos , Modelos Animales , Trasplante Heterólogo/métodos , Animales , Supervivencia de Injerto , Humanos , Trasplante de Islotes Pancreáticos/estadística & datos numéricos , Trasplante de Islotes Pancreáticos/tendencias , Ratones Endogámicos C57BL/cirugía , Roedores , Trasplante Heterólogo/estadística & datos numéricos , Trasplante Heterólogo/tendencias
13.
Clinics ; Clinics;72(4): 238-243, Apr. 2017. tab
Artículo en Inglés | LILACS | ID: biblio-840061

RESUMEN

Among the innovations for the treatment of type 1 diabetes, islet transplantation is a less invasive method of treatment, although it is still in development. One of the greatest barriers to this technique is the low number of pancreas donors and the low number of pancreases that are available for transplantation. Rodent models have been chosen in most studies of islet rejection and type 1 diabetes prevention to evaluate the quality and function of isolated human islets and to identify alternative solutions to the problem of islet scarcity. The purpose of this study is to conduct a review of islet xenotransplantation experiments from humans to rodents, to organize and analyze the parameters of these experiments, to describe trends in experimental modeling and to assess the viability of this procedure. In this study, we reviewed recently published research regarding islet xenotransplantation from humans to rodents, and we summarized the findings and organized the relevant data. The included studies were recent reports that involved xenotransplantation using human islets in a rodent model. We excluded the studies that related to isotransplantation, autotransplantation and allotransplantation. A total of 34 studies that related to xenotransplantation were selected for review based on their relevance and current data. Advances in the use of different graft sites may overcome autoimmunity and rejection after transplantation, which may solve the problem of the scarcity of islet donors in patients with type 1 diabetes.


Asunto(s)
Humanos , Animales , Trasplante de Islotes Pancreáticos/métodos , Diabetes Autoinmune Latente del Adulto/cirugía , Modelos Animales , Trasplante Heterólogo/métodos , Supervivencia de Injerto , Trasplante de Islotes Pancreáticos/estadística & datos numéricos , Trasplante de Islotes Pancreáticos/tendencias , Ratones Endogámicos C57BL/cirugía , Roedores , Trasplante Heterólogo/estadística & datos numéricos , Trasplante Heterólogo/tendencias
14.
Surg Endosc ; 31(10): 3939-3945, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28342126

RESUMEN

BACKGROUND: Inguinal hernia repair is one of the most frequently conducted surgical procedures worldwide. Totally extraperitoneal (TEP) hernioplasty has shown many advantages over traditional open surgery. However, because of increased surgical complexity, it requires more practice to achieve optimal results. OBJECTIVES: The aim of this study is to evaluate the learning curve for TEP hernioplasty, analysing parameters related to the mean operating time. The secondary objective is to assess the complications and early discharge rates related to this procedure. METHODS: A prospective study of 238 consecutive patients undergoing TEP hernioplasty from the same practitioner between May 2009 and May 2014, in a specialised centre for abdominal hernias in Sao Paulo, Brazil, was conducted. All data were obtained through medical records. RESULTS: The study included 137 patients undergoing a total of 157 TEP hernia repairs. Bilaterality and complications can influence the operating time and so were excluded. Patients with unilateral surgery and without complications were included. Patients were chronologically divided into four groups. Groups 1-3 were composed of 35 patients and group 4 of 32. There were no significant variations in clinical characteristics between the groups. The plateau of the learning curve was reached on the 65 th repetition of the surgery, with a mean operating time of 28 min (p < 0,05). Complications were only observed in the first group of 35 patients. 97% of patients were discharged early, defined as patient leaving hospital less than 12 h after surgery. CONCLUSION: After an initial reduction, the mean operating time stabilised after 65 cases. A reduction in the rate of complications was observed after 35 cases, and a rate of 97% of early discharge was achieved.


Asunto(s)
Hernia Inguinal/cirugía , Herniorrafia , Laparoscopía , Curva de Aprendizaje , Peritoneo/cirugía , Brasil , Femenino , Herniorrafia/educación , Herniorrafia/métodos , Humanos , Laparoscopía/educación , Laparoscopía/métodos , Masculino , Persona de Mediana Edad , Tempo Operativo , Estudios Prospectivos
15.
Thyroid ; 26(12): 1761-1767, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27565021

RESUMEN

BACKGROUND: Radioiodine therapy (RIT) is an established treatment for differentiated thyroid carcinomas, and is widely used throughout the world, given the increasing incidence of this malignancy. Although serious adverse effects are infrequent, complications such as dry mouth, sialadenitis, and dysphagia have been described. The involvement of the eyes and accessory visual structures is not commonly discussed, despite dry eye, keratoconjunctivitis, and lacrimal system obstruction (LSO) being reported, especially after high cumulative doses of radiopharmaceuticals. The incidence of LSO is not well established. OBJECTIVES: The aim of this study was to determine the frequency of LSO in patients undergoing RIT at 2, 4, 6, and 12 months after treatment. METHODS: Patients with differentiated thyroid carcinoma undergoing (group 1) and not undergoing (group 2) RIT were evaluated in the preoperative and postoperative periods and 2, 4, 6, and 12 months post surgery or post RIT. Patients underwent tear film evaluation and lacrimal system probing and irrigation. RESULTS: Group 1 (n = 44; 88 eyes) contained three patients (four eyes) with LSO, corresponding to an incidence of 4.55% (four events in 88 eyes) or 6.8% (three cases in 44 patients). Group 2 (n = 43; 86 eyes) did not present any cases of LSO. CONCLUSIONS: In this study, an active prospective investigation allowed LSO detection during the first six months after RIT. This finding demonstrates the importance of making this association clear to patients and health professionals, with a view to early diagnosis, appropriate treatment, and preventing LSO-related complications.


Asunto(s)
Adenocarcinoma Folicular/radioterapia , Carcinoma Papilar/radioterapia , Radioisótopos de Yodo/uso terapéutico , Obstrucción del Conducto Lagrimal/etiología , Neoplasias de la Tiroides/radioterapia , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento
16.
Rev Col Bras Cir ; 43(1): 42-7, 2016 Feb.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-27096856

RESUMEN

OBJECTIVE: to analyze the epidemiology, clinical features and survival rate of patients undergoing orbital exenteration (OE) in a tertiary referral hospital. METHODS: we conducted a retrospective study of all patients undergoing OE at the Hospital das Clínicas, FMUSP between January 2007 and December 2012. We collected data records related to gender, age, origin, length of stay, duration of the disease, other treatments related to the disease, number of procedures outside of the face related to the disease, follow-up and histological diagnosis. RESULTS: we treated 37 patients in the study period. The average survival in one year was 70%, in two years, 66.1%, and 58.3% in three years. There was no significant difference in the one-year survival related to histological diagnosis (p=0.15), days of hospitalization (p=0.17), gender (p=0.43), origin (p=0.78), disease duration (p=0.27) or the number of operations for the tumor (p=0.31). Mortality was higher in elderly patients (p=0.02). The average years of life lost was 33.9 in patients under 60 years, 14.7 in patients in the 61-80 years range and 11.3 in patients over 80 years. CONCLUSION: the present series of cases is significant in terms of prevalence of orbital exenteration; on the other hand, it shows one of the lowest survival rates in the literature. This suggests an urgent need for improved health care conditions to prevent deforming, radical resections.


Asunto(s)
Neoplasias del Ojo/mortalidad , Neoplasias del Ojo/cirugía , Evisceración Orbitaria , Neoplasias Orbitales/mortalidad , Neoplasias Orbitales/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Brasil , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Centros de Atención Terciaria
17.
Rev. Col. Bras. Cir ; 43(1): 42-47, Jan.-Feb. 2016. tab, graf
Artículo en Inglés | LILACS | ID: lil-779025

RESUMEN

Objective: to analyze the epidemiology, clinical features and survival rate of patients undergoing orbital exenteration (OE) in a tertiary referral hospital. Methods : we conducted a retrospective study of all patients undergoing OE at the Hospital das Clínicas, FMUSP between January 2007 and December 2012. We collected data records related to gender, age, origin, length of stay, duration of the disease, other treatments related to the disease, number of procedures outside of the face related to the disease, follow-up and histological diagnosis. Results : we treated 37 patients in the study period. The average survival in one year was 70%, in two years, 66.1%, and 58.3% in three years. There was no significant difference in the one-year survival related to histological diagnosis (p=0.15), days of hospitalization (p=0.17), gender (p=0.43), origin (p=0.78), disease duration (p=0.27) or the number of operations for the tumor (p=0.31). Mortality was higher in elderly patients (p=0.02). The average years of life lost was 33.9 in patients under 60 years, 14.7 in patients in the 61-80 years range and 11.3 in patients over 80 years. Conclusion : the present series of cases is significant in terms of prevalence of orbital exenteration; on the other hand, it shows one of the lowest survival rates in the literature. This suggests an urgent need for improved health care conditions to prevent deforming, radical resections.


Objetivo: analisar o perfil epidemiológico, as características clínicas e a taxa de sobrevida dos pacientes submetidos à exenteração orbitária (EO) em um hospital de referência terciário. Métodos: estudo retrospectivo de todos os pacientes submetidos à EO no Hospital das Clínicas da FMUSP entre janeiro de 2007 e dezembro de 2012. Foram coletados em prontuários dados referentes ao sexo, idade, procedência, dias de internação, tempo de evolução da doença, outros tratamentos relacionados à doença, número de procedimentos fora da face relacionados à doença, tempo de seguimento e diagnóstico histológico. Resultados: trinta e sete pacientes foram identificados no período de estudo. A sobrevida média em um ano foi 70%, em dois anos, 66,1% e em três anos 58,3%. Não houve diferença significativa na taxa de sobrevida de um ano em relação ao diagnóstico histológico (p=0,15), dias de hospitalização (p=0,17), sexo (p=0,43), procedência (p=0,78), tempo de evolução da doença (p=0,27) ou número de operações referentes ao tumor (p=0,31). A mortalidade foi maior em pacientes idosos (p=0,02). A média de anos de vida perdidos foi 33,9 em pacientes com menos de 60 anos, 14,7 em pacientes de 61-81 anos e 11,3 em pacientes com mais de 80 anos. Conclusão: a presente série de casos é significativa em termos de prevalência de exenteração orbitária; por outro lado, apresenta uma das menores sobrevidas da literatura. Isso sugere uma necessidade urgente de melhora das condições de assistência médica para a prevenção de ressecções radicais deformadoras.


Asunto(s)
Humanos , Masculino , Femenino , Lactante , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Orbitales/cirugía , Neoplasias Orbitales/mortalidad , Evisceración Orbitaria , Neoplasias del Ojo/cirugía , Neoplasias del Ojo/mortalidad , Brasil , Tasa de Supervivencia , Estudios Retrospectivos , Centros de Atención Terciaria , Persona de Mediana Edad
18.
Arq Bras Cir Dig ; 28(2): 121-3, 2015.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-26176249

RESUMEN

BACKGROUND: Among endoscopic hernioplasties, totally extraperitoneal (TEP) and transabdominal preperitoneal (TAPP) approach are widely accepted alternatives to open surgery, both providing less postoperative pain, hospital length of stay and early return to work. Classical TEP technique requires three skin incisions for placement of three trocars in the midline or in triangulation. AIM: To describe a technique using only two trocars for laparoscopic total extraperitoneal for inguinal hernia repair. METHOD: Extraperitoneal access: place two regular trocars on the midline. The 10 mm is inserted into the subcutaneous in horizontal direction after a transverse infra-umbilical incision and then elevated at 60º angle. The 5 mm trocar is inserted at the same level of the pubis with direct vision. Preperitoneal space dissection: introduction 0º optical laparoscope through the infra-umbilical incision for visualization and preperitoneal dissection; insufflation pressure must be below 12 mmHg. Dissection of some anatomical landmarks: pubic bone, arcuate line and inferior epigastric vessels. Exposure of "triangle of pain" and "triangle of doom". Insertion through the 10 mm trocar polypropylene mesh of 10x15 cm to cover the hernia sites. Peritoneal sac and the dorsal edge of the mesh are repositioned in order to avoid bending or mesh displacement. It is also important to remember that the drainage is not necessary. RESULTS: The 2-port TEP required less financial costs than usual because it is not necessary an auxiliary surgeon to perform the technique. Trocars, suturing material and wound dressing were spared in comparison to the classical technique. Besides, there were only two incisions, which provides a better plastic result and less postoperative pain. CONCLUSION: The TEP technique using two trocars is an alternative technique which improves cosmetic and financial outcomes.


Asunto(s)
Herniorrafia/métodos , Laparoscopía , Humanos , Instrumentos Quirúrgicos
19.
ABCD (São Paulo, Impr.) ; 28(2): 121-123, Apr-Jun/2015. graf
Artículo en Inglés | LILACS | ID: lil-751855

RESUMEN

BACKGROUND: Among endoscopic hernioplasties, totally extraperitoneal (TEP) and transabdominal preperitoneal (TAPP) approach are widely accepted alternatives to open surgery, both providing less postoperative pain, hospital length of stay and early return to work. Classical TEP technique requires three skin incisions for placement of three trocars in the midline or in triangulation. AIM: To describe a technique using only two trocars for laparoscopic total extraperitoneal for inguinal hernia repair. METHOD: Extraperitoneal access: place two regular trocars on the midline. The 10 mm is inserted into the subcutaneous in horizontal direction after a transverse infra-umbilical incision and then elevated at 60º angle. The 5 mm trocar is inserted at the same level of the pubis with direct vision. Preperitoneal space dissection: introduction 0º optical laparoscope through the infra-umbilical incision for visualization and preperitoneal dissection; insufflation pressure must be below 12 mmHg. Dissection of some anatomical landmarks: pubic bone, arcuate line and inferior epigastric vessels. Exposure of "triangle of pain" and "triangle of doom". Insertion through the 10 mm trocar polypropylene mesh of 10x15 cm to cover the hernia sites. Peritoneal sac and the dorsal edge of the mesh are repositioned in order to avoid bending or mesh displacement. It is also important to remember that the drainage is not necessary. RESULTS: The 2-port TEP required less financial costs than usual because it is not necessary an auxiliary surgeon to perform the technique. Trocars, suturing material and wound dressing were spared in comparison to the classical technique. Besides, there were only two incisions, which provides a better plastic result and less postoperative pain. CONCLUSION: The TEP technique using two trocars is an alternative technique which improves cosmetic and financial outcomes. .


RACIONAL: Dentre as correções endoscópicas das hérnias, as abordagens totalmente extraperitoneal (TEP) e transabdominal pré-peritoneal (TAPP) são amplamente aceitas como alternativas à operação aberta, fornecendo menos dor no período pós-operatório, menor tempo de permanência hospitalar e retorno precoce ao trabalho. A técnica TEP clássica requer três incisões na pele para a colocação de três trocárteres na linha média ou em triangulação. OBJETIVO: Descrever uma técnica utilizando apenas dois trocárteres para hernioplastia laparoscópica totalmente extraperitoneal (TEP). MÉTODO: Acesso extraperitoneal: são inseridos dois trocárteres sobre a linha média; um de 10 mm é inserido no subcutâneo em direção horizontal após incisão infra-umbilical transversal e, em seguida, elevado ao ângulo de 60°; outro de 5 mm é inserido ao nível do pubis com visão direta. Tempos operatórios: 1) dissecção do espaço preperitoneal: introdução da ótica laparoscópica de 0º através da incisão infra-umbilical para visualização e dissecção pré-peritoneal; pressão de insuflação inferior a 12 mmHg; 2) Dissecção de alguns reparos anatômicos: pubis, linha arqueada e vasos epigástricos inferiores; 3) reconhecimento do "triângulo da dor" e "triângulo do desastre"; 4) Inserção através do trocáter de 10 mm de tela de polipropileno de 10x15 cm para cobrir o sitio da hérnia; 5) Reposicionamento do peritônio e da borda dorsal da tela para evitar dobras ou deslocamento da tela. Não é necessária a drenagem. RESULTADOS: Esta técnica foi utilizada em nove pacientes e apresentou bom resultado sem necessidade de um cirurgião auxiliar para executá-la, apenas dois trocáteres, menos material de sutura e de curativos. Além disso, exigiu apenas duas incisões, o que proporcionou melhor resultado estético e menor dor no período pós-operatório. CONCLUSÃO: A técnica proposta utilizando dois trocárteres é uma alternativa viável, com melhora dos resultados cosméticos e financeiros. .


Asunto(s)
Humanos , Herniorrafia/métodos , Laparoscopía , Instrumentos Quirúrgicos
20.
Rev. bras. oftalmol ; 72(1): 38-41, jan.-fev. 2013. ilus, graf
Artículo en Portugués | LILACS | ID: lil-667596

RESUMEN

O lúpus eritematoso discóide é uma desordem autoimune que geralmente afeta áreas da pele expostas ao sol. A apresentação de lesões palpebrais na ausência de outras anormalidades cutâneas é incomum, sendo o envolvimento da pálpebra inferior prevalente em apenas 6% dos pacientes com lúpus eritematoso cutâneo crônico. Relatamos o caso de uma paciente do sexo feminino de 40 anos, com hiperemia, madarose e ulceração na pálpebra inferior do olho esquerdo refratária ao tratamento para blefarite. Inicialmente, outra lesão semelhante havia sido descrita na pálpebra superior do olho direito. No entanto, as biópsias incisionais mostraram-se inconclusivas. Diante de uma lesão migratória palpebral de características semelhantes à primeira, a hipótese clínica de lúpus eritematoso discóide foi aventada e o diagnóstico confirmado por meio de revisão histopatológica. Uma forte suspeita clínica e o reconhecimento precoce podem evitar erros diagnósticos, complicações clínicas e tratamentos inapropriados, como descrito neste caso de lesão palpebral como manifestação primária do lúpus eritematoso discóide.


The discoid lupus erythematosus is an autoimmune disorder which generally affects the sun-exposed skin. Presentation of lesions on the eyelids in the absence of any other cutaneous abnormality is uncommon and the lower-eyelid involvement is seen in 6% of patients with cronic cutaneous lupus erythematosus. We have reported the case of a 40 year-old, woman who presented hyperemia, madarosis and ulceration on the lower eyelid of the left eye. She was treated for blepharitis without resolution. Before that, another similar lesion had been described on the upper eyelid of the right eye. Nevertheless, the incisional biopsies of that eyelid were inconclusive. Faced with a migratory lesion similar to the first one, the clinical hypothesis of discoid lupus erythematosus was suggested and diagnosis was confirmed by histopathological review. A high index of suspicion and early recognition may prevent misdiagnosis, clinical complications and inappropriate treatment, as described in the case of eyelid lesion as a primary manifestation of discoid lupus erythematosus.


Asunto(s)
Humanos , Femenino , Adulto , Antimaláricos/uso terapéutico , Blefaritis/etiología , Corticoesteroides/uso terapéutico , Hidroxicloroquina/uso terapéutico , Hiperemia/diagnóstico , Lupus Eritematoso Discoide/cirugía , Lupus Eritematoso Discoide/complicaciones , Lupus Eritematoso Discoide/tratamiento farmacológico , Párpados/lesiones , Protectores Solares/uso terapéutico , Diagnóstico Diferencial
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA