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1.
Aesthetic Plast Surg ; 2024 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-38720098

RESUMEN

BACKGROUND: Immediate prosthetic reconstruction has evolved to a prepectoral position. A technique is described where the pectoral and serratus fascia is raised from superiorly. Initially, Vicryl mesh was used to close the superior fascial defect, but later abandoned by using primary closure for tissue expanders, or creating a pocket in the infraclavicular pectoralis muscle after prosthesis (DTI) insertion. The inframammary fold is also reinforced. Patients with a BMI > 30 have axillary liposuction. METHOD: Retrospective analysis over a 4-year period. Data included age, number of breasts having expanders or DTI. Prosthetic extrusion and follow-up were recorded. The percentage coverage by fascia was calculated. RESULTS: Forty-seven patients (80 breasts) had mean age of 42 years (range 32-62), twelve patients (19 breasts) had Vicryl mesh inserted, while 35 patients (61 breasts) had closure as noted above. Tissue expanders were inserted in 39 breasts (10 mesh, 29 without). DTI (direct to implant) performed in 41 breasts (32 no mesh, 9 with mesh). Three patients with mesh developed recalcitrant seromas. The mean size of prosthesis used was 353ml (range 200-500 ml). Extrusion occurred in eight breasts (two with mesh, six without). Mean coverage of the prosthesis by fascia was 74% (range 50-100%), and nine patients also had bilateral axillary liposuction of the axillary roll. Mean follow-up was 13 months. CONCLUSION: Another technique for immediate prosthetic reconstruction providing an additional layer of prosthetic cover in prepectoral plane, without mesh. Applicable for all grades of ptosis. Extrusion rate is low. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

2.
Aesthetic Plast Surg ; 2023 Nov 13.
Artículo en Inglés | MEDLINE | ID: mdl-37957392

RESUMEN

INTRODUCTION: The inframammary fold (IMF) is a critical structure in breast aesthetics and is affected by various types of breast surgery. The ideal IMF has a semi-elliptical shape, which may become attenuated with age and descends in macromastia. The aim of this study was to analyse the IMF and retain/restore its shape with sutures. METHODS: A retrospective study was conducted on breast surgeries performed over a four-year period (2019-2022). The morphometry of the IMF was evaluated preoperatively while the patients were standing. In cases where the IMF was symmetrical, sutures were used to reinforce it during surgery. When the loss of the semi-elliptical shape was clinically indicated, the IMF was mobilized, repositioned, and then sutured into place. RESULTS: The study included 56 patients: 43 undergoing immediate breast reconstruction, and 13 undergoing bilateral breast reductions. In over two thirds of the patients, the lateral IMF was inferiorly displaced compared to the medial IMF. CONCLUSION: It is recommended to reinforce the IMF in all patients undergoing breast surgery. Where the IMF has an elliptical shape preoperatively, it is reinforced. Where IMF is inferiorly displaced, mobilization and superior advancement of the IMF, followed by suture reinforcement, are necessary. This approach results in a well-defined IMF with improved breast aesthetics. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

3.
Plast Reconstr Surg ; 152(5): 968e-969e, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-37871031
4.
Plast Reconstr Surg Glob Open ; 10(2): e4105, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35198344

RESUMEN

In macromastia, especially in patients with a raised BMI, the nipple areola complex (NAC) may be displaced from the breast midline/meridian. This is poorly documented, and there is little published on surgical management. The aim of the study was to identify the incidence of displaced NAC in macromastia and discuss the management using the superomedial pedicle, by canting the vertical limbs of the inverted T/keyhole. The study also aimed to postulate a theory of pathogenesis. METHODS: The study is a retrospective review for a two-and-a-half year period. For study inclusion, the NAC had to be displaced 3 cm or more from the breast meridian. A superomedial pedicle was used with an inverted T pattern. The vertical limbs of the keyhole were canted medially for medially displaced NACs and laterally for laterally displaced NACs. RESULTS: Fifteen patients were identified: three with medial and 12 with laterally displaced NAC. Mean age was 35 years (range 21-61) with a mean BMI of 31 (range 27-37). The mean mass of tissue excised was 1158 g (range 330-1969 g). The mean follow up is 7 months (range 2-21 months). One patient suffered partial areola loss, and 2 patients had a breakdown at the angle of sorrow/inverted T junction. CONCLUSIONS: The displaced NAC is not uncommon in women with a raised BMI presenting for breast reduction. Canting the vertical limbs of the keyhole away from the deviated NAC yields satisfactory results in treating patients with a displaced NAC using a superomedial pedicle. A theory of possible pathogenesis is postulated; global attenuation of the breast footplate occurs, leading to lateral and inferior displacement of the NAC.

5.
J Craniofac Surg ; 33(5): 1566-1568, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34816817

RESUMEN

BACKGROUND: Total or near-total lip defects poses a serious challenge to a reconstructive surgeon with static procedures not providing desired functional and aesthetic outcomes. The dynamic lip reconstructive methods using functional muscles have become a current issue in recent years showing admirable results. This study present 3 cases of successful total and near-total lip reconstruction are presented using vastus lateralis muscle. METHODS: This is a retrospective analysis of a consecutive series of 3 patients (2 men and 1 woman) aged 44 to 56 years (mean) who had resection of extensive squamous cell carcinoma 2 had both upper and lower lip involved and 1 had lower lip involvement only. After resection patients had near total full thickness lower lip defect and 40% upper lip defect. The innervated vastus lateralis muscle free flap was transferred to the lip and end-to-end vascular anastomosis on the facial artery and end-to-side to internal jaguar vein was performed. The marginal mandibular branch of the facial nerve was used for nerve coaptation. The inner and outer surfaces of the flaps were grafted with a thick-split-thickness skin graft. Drooling rating scale and patient and observer scar assessment scale as well as electromyography were performed to evaluate oral competency and aesthetic outcome. RESULTS: All patients underwent single stage near-total lower lip and 2 had part of upper lip reconstruction successfully and survived the surgical operation. One patient lost the skin graft and was managed consecutively and muscle granulated and healed. Two patients underwent radiation therapy and 1 died before starting radiation due to other unnatural causes. The 2 patients achieved perfect oral sphincter competence without drooling and at 9months postoperative demonstrated successful reinnervation of the vastus lateralis muscle. CONCLUSIONS: This study demonstrates that lip reconstruction using an innervated vastus lateralis muscle free flap is a reliable method, providing a functional lip.


Asunto(s)
Neoplasias de los Labios , Procedimientos de Cirugía Plástica , Sialorrea , Estética Dental , Femenino , Humanos , Labio/patología , Labio/cirugía , Neoplasias de los Labios/patología , Neoplasias de los Labios/cirugía , Masculino , Músculo Cuádriceps/trasplante , Procedimientos de Cirugía Plástica/métodos , Estudios Retrospectivos , Sialorrea/etiología , Sialorrea/cirugía , Colgajos Quirúrgicos
6.
Plast Reconstr Surg Glob Open ; 7(5): e2150, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31333926

RESUMEN

BACKGROUND: The anthropomometry of the "ideal" breast is well described, but changes that occur with enlarged breasts are not. The aim of this study was to assess the prevalence of nipple asymmetry in the horizontal plane and changes in the inframammary fold (IMF) in patients presenting with macromastia (defined as excessive development of the mammary glands by Merriam-Webster dictionary). METHODS: One hundred patients (200 breasts) presenting to the Plastic Surgery Clinic for bilateral breast reduction were enrolled in this study. Patients' characteristics captured for this study included age, body mass index (BMI), and breast anthropometric measurements, such as suprasternal notch to nipple, nipple to IMF, IMF projected to cubital fossa, midhumeral point, and nipple measurement from meridian. Basic univariate statistical analyses were performed to evaluate the impact of nipple asymmetry. RESULTS: The average age was 37 years (SD 12 years), and the median BMI was 33 (IQR 28-37). More patients presented with nipple asymmetry, of whom 45% were classified as lateral to the meridian, 19% were classified as medial to the meridian, and 36% were classified as central to the meridian. Patients with lateral asymmetry and medial asymmetry had a significantly higher BMI (median BMI 35) compared with patients with central positioning (median BMI 30). Increasing breast size was positively associated with nipple asymmetry, whereas BMI (R = -0.30, P = 0.003) and macromastia correlated negatively with IMF position (R = -0.38, P = 0.0001). CONCLUSION: In macromastia, nipple displacement from the breast meridian, especially lateral displacement, is common and is aggravated by an increase in BMI. The IMF also descends, and this is also more common in patients with a raised BMI. These changes have clinical implications.

7.
J Craniofac Surg ; 30(8): 2441-2444, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31261316

RESUMEN

BACKGROUND: To assess speech results following the treatment of mild to moderate velopharyngeal insufficiency (VPI) post cleft palate surgery with autologous fat grafting to the velopharynx. METHODS: A retrospective study was conducted on 9 consecutive patients who underwent velopharyngeal fat grafting for the treatment of VPI at the Red Cross War Memorial Children's hospital from 2010 to 2014. All the patients previously had primary palatoplasty performed and subsequently developed VPI. Patients were assessed pre- and postoperatively by an experienced speech and language therapist looking at perceptual speech and by 2 senior cleft surgeons interpreting lateral view videofluoroscopies. RESULTS: Eleven fat grafting procedures were performed on 9 patients and an average of 5.64 mL (range 1-7 mL) of autologous fat was transferred to the velopharynx. The average age at the time of operation was 6.5 years (range 3-14 years) with a follow-up period of 18 months (range 7-34 months). Most of the patients (7 out of 9) showed improved speech after fat grafting. One of the 7 patients had multiple procedures. The 2 who did not show speech improvement only had a single procedure. There were no complications related to the fat grafting procedure. CONCLUSION: This small study suggests that fat grafting either as a single procedure or as multiple procedures is an effective, safe, minimally invasive surgical alternative, and/or adjunct for the treatment of mild to moderate VPI in patients following cleft palate surgery and to the knowledge, is the first reported study from Africa.


Asunto(s)
Tejido Adiposo/trasplante , Insuficiencia Velofaríngea/cirugía , Adolescente , Autoinjertos/cirugía , Niño , Preescolar , Fisura del Paladar/cirugía , Femenino , Humanos , Masculino , Procedimientos Quirúrgicos Orales/efectos adversos , Periodo Posoperatorio , Procedimientos de Cirugía Plástica/métodos , Estudios Retrospectivos , Habla , Trastornos del Habla/etiología , Resultado del Tratamiento , Insuficiencia Velofaríngea/complicaciones
8.
J Craniofac Surg ; 28(3): 635-637, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28468138

RESUMEN

INTRODUCTION: Resorbable fixation system (RFS) is an alternative to titanium in open reduction and internal fixation of pediatric facial fractures. METHODS: This study retrospectively reviewed all medical records in a major metropolitan pediatric hospital in Cape Town, South Africa from September 2010 through May 2014. Inclusion criteria were children under the age of 13 with facial fractures who have undergone open reduction and internal fixation using RFS. Intraoperative and postoperative complications were reviewed. RESULTS: A total of 21 patients were included in this study. Twelve were males and 9 were females. Good dental occlusion was achieved in all patients and there were no complications intraoperatively. Three patients developed postoperative implanted-related complications: all 3 patients developed malocclusions and 1 developed an additional sterile abscess over the right zygomatic bone. For the latter, incision and drainage was performed and the problem resolved without additional operations. DISCUSSION: Resorbable fixation system is an alternative to titanium products in the setting of pediatric facial fractures without complications involving delayed union or malunion. The combination of intermaxillary fixation and RFS is not needed postoperatively for adequate fixation of mandible fractures. Resorbable fixation system is able to provide adequate internal fixation when both low-stress and high-stress craniofacial fractures occur simultaneously.


Asunto(s)
Implantes Absorbibles , Huesos Faciales/lesiones , Fijación Interna de Fracturas/métodos , Reducción Abierta , Fracturas Craneales/cirugía , Niño , Preescolar , Huesos Faciales/cirugía , Femenino , Estudios de Seguimiento , Fijación Interna de Fracturas/instrumentación , Humanos , Lactante , Masculino , Estudios Retrospectivos , Sudáfrica , Resultado del Tratamiento
10.
J Craniofac Surg ; 27(1): 128-30, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26674891

RESUMEN

INTRODUCTION: There are few published articles describing the epidemiology of facial fractures in South Africa, and there is only one published study in pediatric patients. MATERIAL AND METHODS: This study retrospectively reviewed all medical records in a major metropolitan pediatric hospital in Cape Town, South Africa from September 2006 through May 2014. Inclusion criteria were children aged under the age of 13 with facial fractures. Fractures were assessed through head computed tomography (CT) scans. Patient's age, sex, cause of injury, general condition, existence of concomitant injuries, location of fractures, type of interventions, and length of stay were recorded and analyzed. RESULTS: A total of 53 men and 34 women were included in the study. Motor vehicle collisions (MVC) were the most common cause of facial fractures (56.3%). One hundred thirty facial fractures were presented on CT scans. The most common fractures in this study were mandible (43.1%). Comparing unrestrained motor vehicle collisions (UMVC) patients with those of other etiologies (OE), there was an increase in the average number of fractures (OE: 1.1, UMVC: 1.9; P < 0.0001), the average length of stay (OE: 4 days, UMVC: 9 days; P < 0.003), and the probabilities of sustaining concomitant injuries (OE: 31.0%, UMVC: 68.8%; P < 0.05) and requiring an operation (OE: 42.3%, UMVC: 81.3%; P < 0.01). DISCUSSION: This study establishes MVC as the most common etiology of facial fractures in South Africa. It demonstrates an increase in the complexity of facial injuries in unrestrained MVCs, suggesting the need for public awareness campaigns to install restraint devices in automobiles in South Africa.


Asunto(s)
Huesos Faciales/lesiones , Fracturas Craneales/epidemiología , Accidentes por Caídas/estadística & datos numéricos , Accidentes de Tránsito/estadística & datos numéricos , Niño , Preescolar , Traumatismos Faciales/epidemiología , Femenino , Huesos del Pie/lesiones , Fracturas Óseas/epidemiología , Humanos , Lactante , Huesos de la Pierna/lesiones , Tiempo de Internación/estadística & datos numéricos , Masculino , Fracturas Mandibulares/epidemiología , Traumatismo Múltiple/epidemiología , Estudios Retrospectivos , Sudáfrica/epidemiología , Fracturas de la Columna Vertebral/epidemiología , Tomografía Computarizada por Rayos X/estadística & datos numéricos
11.
Aesthetic Plast Surg ; 39(6): 963-7, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26377820

RESUMEN

INTRODUCTION: Infantile haemangioma is the most common childhood tumour. These tumours can cause significant functional and cosmetic problems. While there are many treatment modalities, propranolol is increasingly being recognised as the first-line treatment of problematic haemangiomas. This study investigates the use of oral propranolol for the treatment of all haemangiomas at a tertiary children's hospital. METHOD: This is a retrospective study evaluating 15 children (3 boys and 12 girls) presenting at a tertiary children's hospital with infantile haemangioma during a 24-month period. The protocol consisted of pre-treatment ultrasonic evaluation of the lesion, followed by the commencement of propranolol therapy (2 mg/kg orally in two divided doses), with repeat imaging performed at 16-24 weeks in order to document the dimensional changes. Adverse effects of propranolol were documented. Intralesional bleomycin was utilised as a second-line modality of treatment for large or problematic haemangiomas with inadequate regression in size after oral propranolol therapy. RESULT: Fifteen (15) patients with a mean age of 7 months (Range: 3-14 months) presented with haemangiomas. Ten patients presented with lesions affecting the head and neck region (67%). Three patients presented with an ulcerated haemangioma, which responded to propranolol and simple dressings and all healed completely. The average decrease in size between the ultrasonography procedures was 48.87%. Only one patient showed no improvement. No side effects were reported. Concomitant bleomycin treatment was reserved for large problematic haemangiomas and proved successful at speeding up the involution process. CONCLUSION: This study suggests that propranolol become the first-line treatment of choice for all haemangiomas. It has proven to be effective and safe for reducing the size of all haemangiomas during the proliferative phase. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.


Asunto(s)
Hemangioma/tratamiento farmacológico , Propranolol/uso terapéutico , Neoplasias Cutáneas/tratamiento farmacológico , Femenino , Humanos , Lactante , Masculino , Estudios Retrospectivos
12.
Int Wound J ; 12(2): 195-201, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23647737

RESUMEN

The aim of this study was to evaluate a prototype negative pressure wound therapy (NPWT) system that has been developed to simplify NPWT for wounds at the lower end of the acuity scale. The new device has a single preset pressure of -80 mmHg, is single use and operates without an exudate canister. The disposable NPWT system (PICO™) was tested in a prospective, non-comparative, multicentre clinical trial to assess device functionality and clinical acceptance. Twenty patients were recruited for a maximum treatment period of 14 days. The NPWT devices were fitted with data log chips to enable longitudinal assessment of negative pressure and leak rates during therapy. Sixteen (80%) patients had closed surgical wounds, two (10%) patients had traumatic wounds and two (10%) patients received meshed split thickness skin grafts. The mean study duration was 10·7 days (range: 5-14 days) and the mean dressing wear time per individual patient was 4·6 days (range: 2-11). Fifty-five percent of wounds had closed by the end of the 14-day study or earlier, with a further 40% of wounds progressing to closure. Real-time pressure monitoring showed continuous delivery of NPWT. Three cases are discussed representing different wound locations and different patient factors that can increase the risk of post-surgical complications. Clinical studies of the disposable NPWT system confirmed the ability of the simplified single-use device to function consistently over the expected wear time. The anticipated reduced costs, ease of use and increased mobility of patients using this system may enable NPWT benefits to be available to a greater proportion of patients.


Asunto(s)
Terapia de Presión Negativa para Heridas/instrumentación , Heridas Penetrantes/terapia , Adulto , Anciano , Equipos Desechables , Diseño de Equipo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Técnicas de Sutura , Resultado del Tratamiento , Cicatrización de Heridas , Heridas Penetrantes/etiología , Heridas Penetrantes/patología
13.
J Plast Surg Hand Surg ; 49(2): 116-20, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25204206

RESUMEN

Low flow vascular malformations are challenging to manage, particularly with their propensity to grow, and can lead to severe disfigurement and dysfunction. Traditional surgical excision is fraught with tedious dissection and complications, particularly in the head and neck region. Trends toward less invasive techniques, such as intralesional sclerotherapy, are proving to be successful independent treatments or adjuncts in management in low flow vascular malformations. This study was a retrospective case note review, over an 8-year period, reporting the outcomes of 32 children (mean = 5.8 years, range = 5 months-11.5 years) with radiologically confirmed low flow vascular malformations, treated with serial intralesional bleomycin injection (IBI) therapy. Patient demographics, lesion characteristics, imaging findings, treatment course, radiological and clinical response to treatment were recorded. An overall 91% (n = 29) response rate was achieved, with 28% obtaining complete resolution for low flow vascular malformations. Lesions were sub-categorized into venous malformation, including mixed venous-capillary (n = 27) or lymphatic malformation (LM) (n = 5). Twenty-seven of 32 children experienced no complications. Local complications included superficial skin infection (n = 2), skin necrosis (n = 1), hyperpigmentation, and minor contour deformity. There was no recurrence and no systemic side-effects to bleomycin. Mean follow-up was 38 months (range = 6-95 months). In conclusion, serial intralesional bleomycin injections can be effective and also safe in a paediatric population for the successful management of symptomatic or disfiguring low flow vascular malformations.


Asunto(s)
Antibióticos Antineoplásicos/uso terapéutico , Bleomicina/administración & dosificación , Anomalías Linfáticas/terapia , Soluciones Esclerosantes/uso terapéutico , Niño , Preescolar , Femenino , Humanos , Lactante , Inyecciones Intralesiones , Masculino , Estudios Retrospectivos , Escleroterapia , Malformaciones Vasculares/terapia
14.
Wound Repair Regen ; 22(3): 424-9, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24844341

RESUMEN

Recent studies, using modalities other than laser Doppler, have indicated that perfusion during negative-pressure wound therapy (NPWT) is reduced, contrary to world literature. The aim of the present study was to evaluate whether the measuring technique of the laser Doppler could be influenced by the compressive nature of NPWT dressings and whether this could explain the conflicting findings. A hypothesis that it may be possible for laser Doppler to record similar readings to those obtained during NPWT by merely compressing tissues manually was tested on 12 NPWT dressings, with each undergoing an alternating series of manual compressive forces and NPWT (-125 mmHg). During the periods of NPWT (n = 12), the mean perfusion recording increased in five experiments, reduced in six, and remained unchanged in one. During the period when manual pressure was applied (n = 12), there was a mean increase in perfusion in six experiments and a reduction in six. The type of change in perfusion (increase or decrease) was the same for both NPWT and manual pressure in 10 of the 12 experiments. In conclusion, laser Doppler can incorrectly record increased perfusion when tissues are compressed, implying that it is flawed in the field of NPWT research as tissues are always compressed to some degree by the NPWT dressing.


Asunto(s)
Flujometría por Láser-Doppler , Terapia de Presión Negativa para Heridas , Perfusión/métodos , Proyectos de Investigación , Piel/patología , Cicatrización de Heridas , Humanos , Microcirculación , Flujo Sanguíneo Regional , Reproducibilidad de los Resultados , Proyectos de Investigación/normas , Piel/irrigación sanguínea
15.
J Surg Res ; 191(1): 239-49.e3, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24726693

RESUMEN

BACKGROUND: The use of fascial perforating vessels as recipients for microvascular composite tissue autotransplants has led to vessel diameter discrepancy becoming an increasingly common finding. Little evidence, however, is available to direct the choice of anastomotic technique where a discrepancy exists. We have been studying two methods of anastomosing arteries where a small-to-large discrepancy exists-a 45° section of the smaller vessel, and invaginating the smaller vessel inside the larger. As part of this work, this study examines intimal hyperplasia and healing of the two methods. MATERIALS AND METHODS: A previously described paired Wistar rat femoral axis model was used. Anastomoses were performed, one on each side, and specimens were harvested in groups at 24 h, 1 wk, 6 wk, and 8 mo. Inflammation, necrosis, and fibrosis in each layer of the vessel wall and intimal hyperplasia were each scored by an assessor blinded to the group and anastomotic technique. RESULTS: Significant differences in healing were found. The invagination technique induced less inflammation, and caused less endothelial and medial necrosis than the oblique cut end-to-end method. Intimal hyperplasia was most pronounced at 6 wk, but no evidence of a difference in the severity of intimal hyperplasia between the two methods was found. CONCLUSIONS: The invaginating anastomosis causes less inflammation and less vessel wall necrosis than the oblique end-to-end method in this model. This finding, alongside results from previous work, suggests that this is the better method to deal with a small-to-large microarterial diameter discrepancy in the range 1:1.5 to 1:2.5.


Asunto(s)
Microvasos/fisiología , Microvasos/cirugía , Procedimientos Quirúrgicos Vasculares/métodos , Vasculitis/prevención & control , Cicatrización de Heridas/fisiología , Anastomosis Quirúrgica/métodos , Animales , Animales no Consanguíneos , Endotelio Vascular/patología , Endotelio Vascular/fisiología , Arteria Femoral/patología , Arteria Femoral/fisiología , Arteria Femoral/cirugía , Hiperplasia/patología , Hiperplasia/prevención & control , Masculino , Microvasos/patología , Necrosis , Tamaño de los Órganos , Ratas Wistar , Técnicas de Sutura , Trombosis/prevención & control , Recolección de Tejidos y Órganos/métodos , Trasplante Autólogo , Túnica Íntima/patología , Túnica Íntima/fisiología , Vasculitis/patología
16.
Plast Reconstr Surg ; 133(5): 1178-1183, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24445882

RESUMEN

BACKGROUND: Studies investigating the effects of negative-pressure wound therapy using the Chariker-Jeter system (gauze-based interface) and the vacuum-assisted closure system often have outcomes that favor one particular system. This study attempts to examine whether manufacturer involvement could be related to the outcomes of these scientific studies. METHODS: A literature review was undertaken to identify a cohort of studies that compared these two forms of negative-pressure wound therapy. Clinical outcomes studies, basic research studies, and published conference abstracts were included. Allthe articles' abstracts and conclusions were given to five surgeons, who were blinded to the titles and authors. They were individually asked to record what they would consider to be the take-home message of each article (in terms of which system is superior). After categorizing each study according to the system that it appears to favor, the level of manufacturer involvement in each study was evaluated. The relationship between the outcome of a study and the level of manufacturer involvement in that study was then investigated. RESULTS: Of the total of 24 studies found to match the inclusion criteria, 22 were considered to favor a particular system (the other two were categorized as impartial). Of the 24 studies, 19 had some form of manufacturer involvement. Of the 19 that had some form of manufacturer involvement, 18 had outcomes that were deemed beneficial to the involved manufacturer, whereas one was deemed to have an impartial outcome. CONCLUSIONS: This study suggests that manufacturer involvement in these studies (regardless of level) correlates with the outcomes being beneficial to the involved manufacturer in almost all cases. Potential reasons for this and the implications thereof are discussed.


Asunto(s)
Vendajes , Investigación Biomédica , Industrias , Terapia de Presión Negativa para Heridas/instrumentación , Terapia de Presión Negativa para Heridas/métodos , Humanos , Edición
17.
Ann Plast Surg ; 73(4): 465-72, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23318371

RESUMEN

The history of microvascular surgery is intimately linked to that of vascular surgery. Microvascular techniques, developed mainly in China, Japan, Australia, and the United States of America, built on the principles of vascular anastomosis established by pioneers in France, Germany, Italy, and the United States of America. We present a history of the technique here.


Asunto(s)
Microcirugia/historia , Procedimientos Quirúrgicos Vasculares/historia , Australia , China , Europa (Continente) , Historia del Siglo XIX , Historia del Siglo XX , Humanos , Japón , Microcirugia/métodos , Reimplantación/historia , Reimplantación/métodos , Estados Unidos , Procedimientos Quirúrgicos Vasculares/métodos
18.
Plast Reconstr Surg ; 132(4): 978-987, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23783056

RESUMEN

BACKGROUND: Although recent work has demonstrated that perfusion adjacent to a negative-pressure wound therapy dressing is decreased, laser Doppler studies have indicated that there is a zone of increased perfusion a couple of centimeters away. The existence of such a zone of increased perfusion is counterintuitive to the fact that negative-pressure wound therapy has been shown to increase tissue pressure. This study, using an alternative to laser Doppler, evaluated whether such a zone exists. METHODS: Six volunteers were randomized into three groups to test different suction pressures (-75, -125, and -400 mmHg). Each volunteer would have two dressings applied on either side of the lower back. A thermal imaging camera was used to assess perfusion around the dressing during different phases (e.g., "Suction on" and "Suction off"). The mean area under the curve for each phase was compared with those of other phases by means of one-way analysis of variance. Each condition (phase) was compared in a systematic manner with every other by means of Fisher's least significant difference for post hoc comparisons. A Pearson's correlation was determined to test the effects of the different suction pressure groups. RESULTS: No significant difference could be demonstrated for the area under the curve for the different phases. There was no significant correlation between the three suction pressures tested and the difference between the mean area under the curve for "Dressing on, no suction" and the two "Suction on" periods (Pearson correlation = 0.24; p > 0.4). CONCLUSIONS: Thermographic evaluation of tissue around a negative-pressure dressing did not demonstrate a zone of increased perfusion, contrary to other studies, which used laser Doppler. This is in keeping with recent work demonstrating that negative-pressure wound therapy increases tissue pressure while the dressing is applying suction. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.


Asunto(s)
Hiperemia/diagnóstico , Hiperemia/etiología , Terapia de Presión Negativa para Heridas/métodos , Flujo Sanguíneo Regional/fisiología , Piel/irrigación sanguínea , Adulto , Femenino , Voluntarios Sanos , Humanos , Hiperemia/fisiopatología , Flujometría por Láser-Doppler , Masculino , Temperatura Cutánea/fisiología , Succión/métodos , Termografía , Adulto Joven
20.
Ann Plast Surg ; 68(3): 320-5, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21629083

RESUMEN

This article offers an approach to excising lesions on the face considering a simple excision and closure by contraction, excision as an ellipse and primary closure, flap cover, and skin graft. However, the article concentrates on the geometry and mechanics of flap design. The mechanics of the 3 simple flaps (advancement, transposition, and rotation) are initially examined. Additionally, commonly used flaps, which are variations of the above, are also examined. Understanding flap geometry and design is the essence of all pedicle flaps, and will achieve an optimal cosmetic result.


Asunto(s)
Cara/cirugía , Ritidoplastia/métodos , Enfermedades de la Piel/cirugía , Trasplante de Piel , Colgajos Quirúrgicos/clasificación , Cicatriz/cirugía , Estética , Humanos , Resultado del Tratamiento
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