RESUMEN
The aim of this study is to evaluate outcomes of Nissen-Rossetti fundoplication in-terms of objective measures and quality of life evaluation instruments. For the period in observation, the chronic GERD patients, who had undergone LNRF surgery, were evaluated. The long-term outcome was assessed by subjectively comparing the preoperative and postoperative symptoms and Gastroesophageal reflux-Health related quality of life index. As an objective assessment of the pathological reflux, patients underwent 24-hour pH monitoring in the preoperative and postoperative period. Thirty-two patients, who met the criteria and volunteered to participate, were included in the study. The median postoperative follow-up period for the patients was 28±7.92 (16-52) months. A significant increase was observed in the quality of life scores in the postoperative period when compared to the preoperative period (p=0.001) and the DeMeester scores have decreased significantly (p=0.001). The postoperative dysphagia was observed even in the long term in most of the patients, without having a significant effect on the quality of life. In the treatment of gastroesophageal reflux disease, laparoscopic Nissen Rossetti fundoplication is an effective and successful method in achieving the desired outcome such as preventing pathological reflux, relieving the symptoms and improving the quality of life in the long term.
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Trastornos de Deglución/psicología , Trastornos de Deglución/cirugía , Fundoplicación/métodos , Reflujo Gastroesofágico/psicología , Reflujo Gastroesofágico/cirugía , Laparoscopía/métodos , Calidad de Vida/psicología , Adulto , Trastornos de Deglución/etiología , Femenino , Estudios de Seguimiento , Fundoplicación/efectos adversos , Reflujo Gastroesofágico/complicaciones , Reflujo Gastroesofágico/diagnóstico , Humanos , Masculino , Resultado del TratamientoRESUMEN
OBJECTIVES: The purpose of this prospective study was to evaluate the association between bilateral inguinal hernias and colorectal cancers. PURPOSE: Inguinal hernias are one of the most common subjects in surgical practice and have been known to be associated with some other pathologies since 1831. Although there are some series in literature reporting the association of colorectal cancers with inguinal hernias, it is still controversial to perform colorectal diagnostic tools in hernia patients. Colorectal cancers are particularly accused to be in association with synchronous bilateral hernias as they increase the intra-abdominal pressure. METHODS: Rectosigmoidoscopy was performed in 110 consecutive bilateral hernia patients and the results were recorded prospectively. Patients having colorectal diseases were excluded. RESULTS: There were no pathologies in 87 (%79,1) rectosigmoidoscopies, while benign pathologies (hemorrhoids, polyps and diverticulitis) were diagnosed in 23 (%20,9). CONCLUSIONS: It has not been proved yet that colorectal cancers increase the incidence of bilateral inguinal hernias. The incidence of benign pathologies in our series was similar to that of same age population without hernia. As a conclusion of this study we believe that rectosigmoidoscopy is not necessary for synchronous bilateral hernias unless the patient has any complaints or risk factors. Colorectal screening tools are performed when the clinical findings or the story of the patient support colorectal cancers) (Tab. 1, Ref. 25).
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Neoplasias Colorrectales/diagnóstico , Hernia Inguinal/diagnóstico , Proctoscopía , Sigmoidoscopía , Adulto , Anciano , Neoplasias Colorrectales/complicaciones , Femenino , Hernia Inguinal/complicaciones , Hernia Inguinal/cirugía , Humanos , Masculino , Persona de Mediana Edad , Cuidados PreoperatoriosRESUMEN
BACKGROUND AND AIM: Umbilical hernia frequently accompanies cholelithiasis. It is possible to repair these hernias after completing cholecystectomy. We herein describe a simple modified technique for the repair. PATIENTS AND METHOD: The technique was applied to 10 patients undergone laparoscopic cholecystectomy. After cholecystectomy has been performed, periumbilical trocar incision is extended toward the umbilicus. The hernia sac is sent into the abdominal cavity and one or two simple sutures are put to approximate the fascial edges of the umbilical hernia. A similar approximation is done for trocar hole. A piece of polypropylene mesh covering both defects with an adequate overlap at four edges is fixed in onlay position. RESULTS: No wound complications were recorded. After a median of 23 months (6-40 months) follow-up no recurrence was observed. CONCLUSION: This simple modified repair may especially be useful in centers where the surgeons can easily perform cholecystectomy laparoscopically, but are not familiar with laparoscopic hernia repair and mesh placement or haven't the equipment and material necessary for a laparoscopic repair.
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Colecistectomía Laparoscópica , Hernia Umbilical/cirugía , Colelitiasis/complicaciones , Colelitiasis/cirugía , Hernia Umbilical/complicaciones , Humanos , Procedimientos Quirúrgicos Operativos/métodosRESUMEN
OBJECTIVE: The study was designed to compare the early postoperative results of the commonly used two surgical flap procedures in pilonidal disease: Karydakis and Limberg. METHOD: One hundred patients were randomized into two groups and standard Limberg or Karydakis procedures were performed. All had primary sinus orifices. Infected cases and the ones with secondary orifices over 2 cm distant from primary were excluded. Data were recorded concerning complications, need for analgesia and wound dressing, periods of time off work and off driving. Patients were asked to classify their first defecation manner after the operation and also pain according to a Visual Analogue Scale with range of 1-10. RESULTS: There was a significantly higher wound infection rate in the Karydakis group than in the Limberg group (13/50 and 4/50 respectively). This also resulted in significantly higher values for wound dressings and need for analgesia. The time off work and off driving and also the Visual Analogue Scale scores were not significantly different between the two groups. CONCLUSION: Both procedures can be safely performed in pilonidal disease with a standard length of stay in hospital and a similar loss of productive power. However, the Karydakis flap seems to have a significant higher infection rate and this probably increases the cost.
Asunto(s)
Seno Pilonidal/cirugía , Colgajos Quirúrgicos/efectos adversos , Infección de la Herida Quirúrgica/etiología , Técnicas de Sutura/efectos adversos , Adulto , Femenino , Humanos , Masculino , Complicaciones Posoperatorias/etiología , Succión , Adulto JovenRESUMEN
BACKGROUND: The purpose of this study was to examine the effects of sildenafil citrate on normal and ischemic colon anastomosis in the rat model by measuring the levels of blood and colonic tissues nitric oxide, thiobarbituric acid reactive substrates (as a marker of lipid peroxidation), and glutathione (as an antioxidant). METHODS: Normal (group 1 and 3) and ischemic anastomosis (group 2 and 4) were performed in four equal rat groups (n = 14). Orally 10 mg/kg per day of sildenafil citrate therapy were applied in group 3 and group 4 after operation. Seven rats of the each group were killed on postoperative days 3 and 7. RESULTS: Sildenafil citrate therapy was resulted in elevated nitric oxide levels in both normal and ischemic anastomotic tissues (p < 0.0001 and p < 0.03) at postoperative day 3. Tissue thiobarbituric acid reactive substrate levels were elevated in rats with normal anastomosis by sildenafil therapy (p < 0.001) at postoperative days 3 and 7 (p < 0.05). Sildenafil therapy given to the normal anastomosis group has significantly higher tissue nitric oxide levels than the normal anastomosis group without therapy at postoperative day 7 (p < 0.001). On postoperative day 7, plasma nitric oxide levels were decreased by sildenafil citrate in rats with normal (p < 0.01) and ischemic anastomosis (p < 0.05). The beneficial effect of sildenafil citrate also was seen for erythrocyte glutathione levels in rats with normal anastomosis at postoperative day 7 and in rats with ischemic anastomosis at postoperative day 3. CONCLUSIONS: Our results suggest that sildenafil citrate may affect ischemic anastomotic healing due to its possible effects on nitric oxide metabolism and lipid peroxidation. However, functional implication of this agent further needs to be elucidated.
Asunto(s)
Colon/irrigación sanguínea , Colon/cirugía , Piperazinas/farmacología , Sulfonas/farmacología , Cicatrización de Heridas/efectos de los fármacos , Anastomosis Quirúrgica , Animales , Biomarcadores/metabolismo , Colon/efectos de los fármacos , Glutatión/metabolismo , Isquemia/tratamiento farmacológico , Masculino , Óxido Nítrico/metabolismo , Estrés Oxidativo , Purinas/farmacología , Ratas , Ratas Wistar , Citrato de Sildenafil , Estadísticas no Paramétricas , Sustancias Reactivas al Ácido Tiobarbitúrico/metabolismoRESUMEN
For years, centers dedicated to hernia surgery have been operating in North America and Europe. However, such centers have not been available to patients in most other countries, including Turkey. In 2006, the first Turkish center devoted to hernia surgery, the "Ankara Hernia Center", was opened. In this paper, we present general information about the center's construction, staff, practice, patient profiles, and future goals.
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Herniorrafia , Centros Quirúrgicos/organización & administración , Arquitectura y Construcción de Instituciones de Salud , Humanos , Turquía , Recursos HumanosAsunto(s)
Axila/lesiones , Carcinoma de Células Escamosas/cirugía , Drenaje/instrumentación , Reacción a Cuerpo Extraño/etiología , Neoplasias Cutáneas/cirugía , Quemaduras/complicaciones , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/etiología , Diagnóstico Precoz , Falla de Equipo , Reacción a Cuerpo Extraño/cirugía , Humanos , Enfermedad Iatrogénica , Escisión del Ganglio Linfático/efectos adversos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Administración de la Seguridad , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/etiologíaRESUMEN
Aim: To investigate the effect of the administration of a single dose of meloxicam pre-emptively on postoperative pain management in patients who underwent inguinal hernia repair under local anaesthesia. Subjects and Method: Fifty patients who underwent inguinal hernia repair under local anaesthesia during the period November 2005 to May 2006 were recruited into the study prospectively. The patients were randomized to two groups regarding administration and non-administration of pre-emptivemeloxicam. The postoperative visual analogue pain scale (VAS) values at 4, 8, 12 and 24 hours and analgesic needs of the patients were recorded. Results: No difference was found between the groups in terms of age, gender, hernia localization and type. The VAS values of the patients regarding their pain severity were evaluated at 4, 8, 12 and 24 hours and were significantly lower in the group which received meloxicam pre-emptively (p = 0.001, 0.0001, 0.003 and 0.0001 respectively). The need for non-steroidal anti- inflammatory drug was also found to be significantly lower (p = 0.0001). Conclusion: Postoperative pain severity and hence analgesic requirement were significantly decreased in the patients who received meloxicam pre-emptively. Single dose pre-emptive meloxicam seems to be an effective analgesic therapy for patients undergoing inguinal hernia repair under local anaesthesia.It thereby improves patients comfort and should be considered for use in outpatient surgery.
Objetivo: Investigar el efecto de la administración de una dosis de meloxicam de forma preventiva enel tratamiento del dolor postoperatorio en pacientes sometidos a una reparación quirúrgica de hernia inguinal bajo anestesia local. Sujetos y Métodos: Cincuenta pacientes que tuvieron una reparación de hernia inguinal bajo anestesia local durante el período de noviembre de 2005 a mayo de 2006, fueron reclutados para el estudio demodo prospectivo. Los pacientes fueron divididos aleatoriamente en dos grupos, partiendo del criterio de la administración o no administración de meloxicam de modo preventivo. Se registraron los valores de la escala visual-analógica (EVA) para el dolor postoperatoria a las 4, 8, 12 y 14 horas, así como las necesidades analgésicas de los pacientes. Resultados: No se hallaron diferencias entre los grupos en relación con la edad, el género, lalocalización y el tipo de hernia. Los valores de la EVA de los pacientes con respecto a la severidad de su dolor, fueron evaluados a las 4, 8, 12 y 24 horas, y resultaron ser significativamente más bajos en el grupo que recibió meloxicam de forma preventiva (p = 0.001, 0.0001, 0.003 y 0.0001 respectivamente). También se halló que la necesidad de un medicamento anti-inflamatorio no ester-oidal era significativamente más baja (p = 0.0001). Conclusión: La severidad del dolor postoperatorio y por lo tanto la necesidad de analgésicos, experimentaron una disminución significativa en los pacientes que recibieron meloxicam de forma preventiva. La dosis sencilla de meloxicam de forma preventiva parece ser una terapia analgésica efectiva para pacientes que han sido sometidos a reparación quirúrgica inguinal con anestesia local. Su aplicación mejora el alivio de los pacientes, y debe tenerse en cuenta su uso para la cirugía ambulatoria.
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Humanos , Masculino , Femenino , Persona de Mediana Edad , Antiinflamatorios no Esteroideos , Anestesia Local , Dolor Postoperatorio/tratamiento farmacológico , Hernia Inguinal/cirugía , Tiazinas/uso terapéutico , Tiazoles/uso terapéutico , Dolor Postoperatorio/diagnóstico , Estudios Prospectivos , Dimensión del DolorRESUMEN
Oxidant/antioxidant balance has been suggested as an important factor for initiation and progression of cancer. In order to determine whether the degree of oxidative DNA damage and antioxidant enzyme activities in plasma obtained from patients with gastric and colon cancer who undergo resection can be used as a useful prognostic predictor, plasma level of 8-hydroxydeoxyguanosine (8-OHdG), activities of glutathione peroxidase (G-Px) and superoxide dismutase (SOD) were examined. 19 patients with gastric cancer and 26 patients with colon cancer who were undergoing resection of tumor were included by the study. Venous blood samples were taken just before the surgery. Plasma level of 8-OHdG was determined with ELISA, SOD and G-Px activities in plasma were measured by spectrophotometric kits. 8-OHdG level and activity of G-Px were found to be decreased, SOD activity was found to be increased in both gastric and colon cancer groups as compared to control group. Alpha fetoprotein was found to be correlated with G-Px in the gastric cancer group and correlated with 8-OHdG in the colon cancer group. SOD activity was correlated with CA-15-3 in the gastric cancer group. Low plasma level of 8-OHdG and altered antioxidant activity may implicate the deficient repair of oxidative DNA damage in patients with gastric and colon cancer. Those measured parameters were not found to be related with histopathological data but correlated with some tumor markers.
Asunto(s)
Antioxidantes/metabolismo , Neoplasias del Colon/sangre , Daño del ADN , Desoxiguanosina/análogos & derivados , Glutatión Peroxidasa/sangre , Neoplasias Gástricas/sangre , Superóxido Dismutasa/sangre , 8-Hidroxi-2'-Desoxicoguanosina , Adenocarcinoma/sangre , Adenocarcinoma/secundario , Anciano , Carcinoma Adenoescamoso/sangre , Carcinoma Adenoescamoso/secundario , Carcinoma de Células en Anillo de Sello/sangre , Carcinoma de Células en Anillo de Sello/secundario , Estudios de Casos y Controles , Neoplasias del Colon/patología , Desoxiguanosina/sangre , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , Linfoma de Células B/sangre , Linfoma de Células B/patología , Masculino , Persona de Mediana Edad , Oxidación-Reducción , Pronóstico , Neoplasias Gástricas/patología , alfa-FetoproteínasRESUMEN
AIM: To investigate the effect of the administration of a single dose of meloxicam pre-emptively on postoperative pain management in patients who underwent inguinal hernia repair under local anaesthesia. SUBJECTS AND METHOD: Fifty patients who underwent inguinal hernia repair under local anaesthesia during the period November 2005 to May 2006 were recruited into the study prospectively. The patients were randomized to two groups regarding administration and non-administration of pre-emptive meloxicam. The postoperative visual analogue pain scale (VAS) values at 4, 8, 12 and 24 hours and analgesic needs of the patients were recorded RESULTS: No difference was found between the groups in terms of age, gender, hernia localization and type. The VAS values of the patients regarding their pain severity were evaluated at 4, 8, 12 and 24 hours and were significantly lower in the group which received meloxicam pre-emptively (p = 0.001, 0.0001, 0.003 and 0.0001 respectively). The need for non-steroidal anti-inflammatory drug was also found to be significantly lower (p = 0.0001). CONCLUSION: Postoperative pain severity and hence analgesic requirement were significantly decreased in the patients who received meloxicam pre-emptively. Single dose pre-emptive meloxicam seems to be an effective analgesic therapy for patients undergoing inguinal hernia repair under local anaesthesia. It thereby improves patients comfort and should be considered for use in outpatient surgery.
Asunto(s)
Anestesia Local , Antiinflamatorios no Esteroideos/uso terapéutico , Hernia Inguinal/cirugía , Dolor Postoperatorio/tratamiento farmacológico , Tiazinas/uso terapéutico , Tiazoles/uso terapéutico , Femenino , Humanos , Masculino , Meloxicam , Persona de Mediana Edad , Dimensión del Dolor , Dolor Postoperatorio/diagnóstico , Estudios ProspectivosRESUMEN
The incidence of the neuropathological lesions and the severity of the clinical symptoms in multiple sclerosis (MS) are correlated with the amount of the transferred autoreactive T cells. The balance between the T helper 1 (Th1) and T helper 2 (Th2) cytokine phenotypes may affect the activity of the disease in MS patients. Interleukin-10 (IL-10) is a cytokine secreted by Th2 cells. Thus, it has been thought that inducing IL-10 may have therapeutic effects in the treatment of MS patients. In this study, in order determine whether different types of prophylaxis change the secretion of IL-10, we measured the levels of IL-10 in relapsing-remitting type multiple sclerosis (RRMS) patients receiving interferon-beta 1b (IFN-beta 1b) or azathioprine (AZA). Our study consisted of RRMS patients (n=45) and healthy subjects (n=15) as control group. Patients were categorized into three groups as those receiving either IFN-beta 1b or AZA and those not receiving prophylaxis. Each group was compared with the control group. Serum IL-10 levels were determined using ELISA method. IL-10 levels of those receiving IFN-beta 1b were found to be significantly higher than that of other groups. These results support that the ability of inducing anti-inflammatory cytokine IL-10 plays a role in the clinical advantage of IFN-beta 1b in MS treatment.
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Sistema Nervioso Central/efectos de los fármacos , Sistema Nervioso Central/inmunología , Interferón beta/farmacología , Interleucina-10/sangre , Esclerosis Múltiple/tratamiento farmacológico , Esclerosis Múltiple/inmunología , Adolescente , Adulto , Azatioprina/farmacología , Azatioprina/uso terapéutico , Sistema Nervioso Central/fisiopatología , Femenino , Humanos , Inmunosupresores/farmacología , Inmunosupresores/uso terapéutico , Interferon beta-1b , Interferón beta/uso terapéutico , Interleucina-10/inmunología , Interleucina-10/metabolismo , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/sangre , Células TH1/efectos de los fármacos , Células TH1/inmunología , Células TH1/metabolismo , Células Th2/efectos de los fármacos , Células Th2/inmunología , Células Th2/metabolismo , Resultado del Tratamiento , Regulación hacia Arriba/efectos de los fármacos , Regulación hacia Arriba/inmunologíaRESUMEN
OBJECTIVE: We aimed to compare the three techniques of dartos pouch orchiopexy, suture fixation to the scrotal wall and narrowing of the neck of pouch with or without suture fixation, in regard to the postoperative ascensus of testes. MATERIALS AND METHODS: We operated on 150 unilateral palpable undescended testis with the scrotal pouch orchiopexy technique. In this prospective study, patients were randomly divided into three groups: Testes were fixed to the scrotal wall in the first group, they were placed into the scrotal pouch without fixation but the neck of the dartos pouch was narrowed around the vas deferens and the vessels in the second group and testes were fixed to the scrotum with a suture and the dartos fascial opening was narrowed concomitantly in the third group. RESULTS: Patients were followed between 6 and 48 months (28.0 +/- 11.4). Only four testes of the first group (8.0%) were replaced upward after the operation where all the other two groups' testes were in their places. CONCLUSION: We believe that only narrowing of the dartos fascia around the vas deferens and vessels without fixation to the scotum prevents ascending of the testis upward after orchiopexy operations. We think this technique decrease the risk of supposed damage to the testicular tissue due to suture material.
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Criptorquidismo/cirugía , Testículo/crecimiento & desarrollo , Procedimientos Quirúrgicos Urológicos/métodos , Niño , Preescolar , Estudios de Seguimiento , Humanos , Lactante , Masculino , Estudios ProspectivosRESUMEN
The aims of this study were (1) to investigate the effect of experimental obstructive jaundice on the healing of intestinal anastomosis, and (2) to investigate the effect of pentoxifylline on the healing of intestinal anastomosis in rats with obstructive jaundice. Obstructive jaundice was induced in rats by the ligation and division of the common bile duct. Four days after this operation, either pentoxifylline or isotonic saline solution was administered intraperitoneally to these jaundiced rats and controls, and then intestinal anastomosis was performed. The concentrations of serum tumor necrosis factor alpha (TNF-alpha) and serum triglyceride of jaundiced and nonjaundiced rats were measured, and the quality of healing was evaluated by measuring the bursting pressure and hydroxyproline content of the anastomoses on the fifth and tenth days of anastomotic healing. Obstructive jaundice resulted in an impaired wound healing of the intestinal anastomosis in the rats. The administration of pentoxifylline to the jaundiced rats resulted in better anastomotic wound healing. The beneficial effects of pentoxifylline on anastomotic healing in rats with obstructive jaundice was attributed to its inhibitor effect on the endotoxin-induced TNF-alpha release from macrophages and monocytes, and the stabilizing effect on the neutrophils.
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Colestasis Extrahepática/fisiopatología , Inhibidores Enzimáticos/farmacología , Intestinos/cirugía , Pentoxifilina/farmacología , Cicatrización de Heridas/efectos de los fármacos , Anastomosis Quirúrgica , Animales , Colestasis Extrahepática/sangre , Conducto Colédoco , Endotoxemia/prevención & control , Ligadura , Ratas , Ratas Sprague-Dawley , Factores de Tiempo , Triglicéridos/sangre , Factor de Necrosis Tumoral alfa/metabolismoRESUMEN
OBJECTIVE: Assessment of malignancy criteria in Huerthle cell neoplasm. METHODS: This study intends to review retrospectively the patients who were operated for Huerthle cell neoplasia at Gazi University, Department of General Surgery between January 1986 and October 1999. Pathological specimens from 63 patients (20 males and 43 females) were investigated in this study, 48 of which revealed Huerthle cell adenoma and 15 revealed Huerthle cell carcinoma. The mean age of the patients with Huerthle cell adenoma was 40.7+/-1.59 yr while it was 51.3+/-1.83 yr in patients with Huerthle cell carcinoma. Mann-Whitney U and Chi-square tests were used for statistical analysis. RESULTS: . Fifty-two of the 63 patients had fine needle aspiration (FNA) biopsy prior to operation, 49 of those were reported to have suspected Huerthle cell neoplasia (HCN) and three had suspected Huerthle cell carcinoma (HCC). The sensitivity of FNA for HCN was 20 %, specificity was 100 %, positive predictive value was 100 % and negative predictive value was 76 %. For all patients, peroperative frozen section (FS) biopsy was examined. Fifty-nine of the FS specimens revealed HCN and four revealed HCC. The sensitivity, specificity, positive predictive value and negative predictive value of FS biopsy were 27 %, 79 %, 28.5 % and 77.5 %, respectively. In this retrospective study, there was a statistically significant correlation between malignancy and the size of the tumor (P<0.05) according to Chi-square test, and also a statistically significant correlation between malignancy and the age of the patient (P<0.05) according to Mann-Whitney U test. CONCLUSIONS: In cases where FS and FNA biopsies cannot adequately define the benign or malignant behaviour of the tumor, the age of the patient and the diameter of the tumor must be taken into consideration for accurate surgical strategy. Particularly for 50 year-old and elderly, incidence of malignancy is statistically significant without considering sex of the patient.
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Adenocarcinoma/diagnóstico , Adenoma Oxifílico/diagnóstico , Neoplasias de la Tiroides/diagnóstico , Adenocarcinoma/patología , Adenocarcinoma/cirugía , Adenoma Oxifílico/patología , Adenoma Oxifílico/cirugía , Adulto , Biopsia , Biopsia con Aguja , Femenino , Secciones por Congelación , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Sensibilidad y Especificidad , Neoplasias de la Tiroides/patología , Neoplasias de la Tiroides/cirugía , TiroidectomíaRESUMEN
OBJECTIVE: In a double blind prospective clinical study to evaluate the diagnostic potential of peroperative fine needle aspiration cytology as compared to peroperative frozen section in thyroid surgery. METHODS: The diagnostic value of one hundred consecutive preoperative (FNA) and peroperative fine needle aspiration (p-FNA), frozen section (FS) and permanent section (PS) examination for thyroid nodules were studied prospectively in order to assess and compare the accuracy, sensitivity and specificity. RESULTS: Out of 100 patients PS showed 11 % of malignancies, while p-FNA showed 5 % and FS showed 6% of malignant cases with no false positive, but with 6 and 5 false negative results, respectively. Thus, as compared with FS, one false negative finding was obtained by p-FNA in a case of malignant tumor which could be definitely ascertained by frozen section technique. However, concerning the benign nodules no differences were found between p-FNA and FS. CONCLUSIONS: Peroperative fine needle aspiration seems to be a useful method which can be properly performed because the nodule can be easily seen during the surgical procedure. However, further clinical observations of large numbers of patients are needed.
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Biopsia con Aguja , Secciones por Congelación , Glándula Tiroides/patología , Glándula Tiroides/cirugía , Adulto , Anciano , Reacciones Falso Negativas , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sensibilidad y Especificidad , Neoplasias de la Tiroides/diagnóstico , Neoplasias de la Tiroides/patologíaRESUMEN
The aim of the present study was to investigate the effect of endothelin-1 on the isolated distal ileum and proximal colon in an experimentally induced ileus in rats. Ileal and colonic contractions by endothelin-1, acetylcholine alone and with endothelin-1 were recorded both in normal and experimentally induced paralytic ileus in rats. In the control group, all the responses to acetylcholine were found to be potentiated significantly when used together with endothelin-1 but in paralytic ileus group, no detectable change was observed in the responses of the amine after administration of acetylcholine together with endothelin-1. This study indicates that endothelin-1 might have an effect on gastrointestinal motility and postoperative paralytic ileus.
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Colon/efectos de los fármacos , Endotelina-1/farmacología , Íleon/efectos de los fármacos , Seudoobstrucción Intestinal/fisiopatología , Contracción Muscular/efectos de los fármacos , Acetilcolina/farmacología , Animales , Colon/fisiopatología , Sinergismo Farmacológico , Femenino , Íleon/fisiopatología , Técnicas In Vitro , Seudoobstrucción Intestinal/etiología , Masculino , Músculo Liso/efectos de los fármacos , Músculo Liso/fisiopatología , Ratas , Ratas Wistar , Vasodilatadores/farmacologíaRESUMEN
The normal site of the external urethral meatus on the glans penis and the need for meatal advancement in patients with anterior hypospadias was studied. The location of the external meatus was analyzed in 1,244 men (mean age 28 years) with classification of the meatal position in relation to the tip of the glans and corona. The quality of erections and sexual intercourse, the presence of a penile curvature, urinary stream, and ability to void in a standing position were assessed in an interview. In 1,198 men (96.3%) the meatus was located on the distal third of the glans, in 43 (3.5%) on the middle third, (B), and in 3 (0.2%) on the posterior third. In no case was it located below the corona. One of the 3 men with the meatus on the posterior third had an associated mild penile curvature that did not cause difficulty in sexual intercourse. This study suggests that the normal site of the external meatus is at the tip of the glans. The definition of the normal site and the percentage of men with a normal meatal position justifies the need for meatal advancement in patients with anterior hypospadias when the goals of current hypospadias surgery are considered.