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1.
Aesthet Surg J ; 43(1): NP19-NP27, 2023 01 09.
Artigo em Inglês | MEDLINE | ID: mdl-35793066

RESUMO

BACKGROUND: Frontal wrinkles are a cause of distress for many people as they age. Traditionally, these have been treated with botulinum toxin injections. However, this procedure is not free from complications and has a temporary result. This report describes a procedure involving temporal branch of facial nerve ablation, a novel and simple technique for the treatment and prevention of rhytids. OBJECTIVES: The objective of this study was to introduce this new technique of ablation for the treatment of frontal wrinkles after analyzing 3 options of approach based on the number of ablation lines. METHODS: Fifty-one patients with a mean age of 49 years underwent nerve ablation. The temporal nerve branches were located through electrostimulation. Through a skin puncture in the temporal region, an Abbocath, with part of the plastic coating removed at its base, was introduced. The nerve branches were cauterized in oblique lines with a monopolar electric scalpel. Patients were divided into 3 groups, depending on the number of ablation lines. RESULTS: The median follow-up period was 20 months (range, 1-50 months). Only 3 (5.7%) patients developed unilateral relapse of muscle activity in the frontal region. Group 6 was statistically superior to Group 1. There was no statistically significant difference between Group 4 and the other 2 groups. More than 70% of patients were satisfied or very satisfied with the results. CONCLUSIONS: Facial nerve branch ablation is a simple surgical technique for the treatment of forehead rhytids that produces less postoperative pain, features rapid recovery, and, above all, offers long-lasting results.


Assuntos
Face , Envelhecimento da Pele , Humanos , Pessoa de Meia-Idade , Face/cirurgia , Testa/cirurgia , Nervo Facial/cirurgia , Dor Pós-Operatória
2.
Aesthet Surg J ; 43(11): NP949-NP955, 2023 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-37606256

RESUMO

BACKGROUND: During invasive procedures involving needles, there is a chance of damage to peripheral nerves. Therefore, a method for experimentally simulating these situations is needed. OBJECTIVES: In this study we aimed to evaluate peripheral nerve lesions caused by the entry and exit of an injection needle, nerve transfixion through a suture stitch, and the injection of saline solution and lidocaine into the nerve. METHODS: After obtaining approval from the Animal Ethics Committee, we randomly divided 36 Wistar rats, weighing approximately 250 g each, into 6 groups (control, sham, suture, needle, saline, and lidocaine groups), with 6 animals in each group. All procedures were performed on the left paws of the rats. After the procedure, walking track analysis was performed to assess the walking function of rats for 8 weeks. Four months after the procedures, we performed bilateral electrophysiological studies (measuring the latency and amplitude of the electrical impulse in the peroneal nerve). Subsequently, the rats were euthanized, and bilateral tissue samples were collected from the peroneal nerve and tibialis cranialis muscle for morphometric histological analysis. RESULTS: In the walking track analysis, all groups showed normalization of walking functionality after 13 days. There was little histological change between the groups, and no functional loss related to the procedures was observed. CONCLUSIONS: Procedures involving the infusion of local anesthetic or saline solution, or suture needles, are safe with regard to peripheral nerve function loss. Accidents tend not to cause nerve impairment.

3.
Aesthetic Plast Surg ; 43(6): 1536-1546, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31511923

RESUMO

BACKGROUND: Creating the ideal aesthetic eyebrow shape and position is an important goal in facial rejuvenation. One challenge of an eyebrow lift is to find a predictable procedure that balances the advantages and disadvantages of the available strategies. The gliding brow lifting (GBL) is a technique that provides minimal incisions, an effective and stable eyebrow lift, and offers the advantage of precise reshaping of the eyebrow. METHODS: In a retrospective review, 124 patients, who underwent GBL technique from November 2015 through April 2016, were evaluated. With minimal incisions and tumescent infiltration, the subcutaneous plane of the forehead, eyebrows and temporal face is undermined releasing the skin from the underlying frontalis muscle, orbicularis oculi muscle, corrugator muscle and temporal parietal fascia. Fixation of the repositioned and reshaped eyebrow is achieved with the use of a hemostatic net for temporary cutaneous fixation. RESULTS: The average follow-up period was 17 months. Adequate brow repositioning and/or reshaping was achieved in 118 patients. Six patients had bilateral or unilateral recurrence of ptosis. Of these patients with recurrence, four patients had the same procedure re-performed within 1 month postoperatively with successful repositioning and/or reshaping of their brow. There was no incidence of hematoma, seroma, infection, permanent sensory changes, motor dysfunction, skin flap necrosis or alopecia. CONCLUSION: The "gliding brow lifting" (GBL), which combines subcutaneous frontal undermining with minimal incisions, elevation and reshaping of eyebrow and use of a temporary cutaneous fixation with hemostatic net (Net), allows effective, long-lasting results with low rates of complications and satisfactory results. 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.


Assuntos
Sobrancelhas , Ritidoplastia/métodos , Adulto , Idoso , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ritidoplastia/instrumentação
4.
BJU Int ; 119(6): 948-954, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28093890

RESUMO

OBJECTIVE: To study a novel penile reinnervation technique using four sural nerve grafts and end-to-side neurorraphies connecting bilaterally the femoral nerve and the cavernous corpus and the femoral nerve and the dorsal penile nerves. PATIENTS AND METHODS: Ten patients (mean [± sd; range] age 60.3 [± 4.8; 54-68] years), who had undergone radical prostatectomy (RP) at least 2 years previously, underwent penile reinnervation in the present study. Four patients had undergone radiotherapy after RP. All patients reported satisfactory sexual activity prior to RP. The surgery involved bridging of the femoral nerve to the dorsal nerve of the penis and the inner part of the corpus cavernosum with sural nerve grafts and end-to-side neurorraphies. Patients were evaluated using the International Index of Erectile Function (IIEF) questionnaire and pharmaco-penile Doppler ultrasonography (PPDU) preoperatively and at 6, 12 and 18 months postoperatively, and using a Clinical Evolution of Erectile Function (CEEF) questionnaire, administered after 36 months. RESULTS: The IIEF scores showed improvements with regard to erectile dysfunction (ED), satisfaction with intercourse and general satisfaction. Evaluation of PPDU velocities did not reveal any difference between the right and left sides or among the different time points. The introduction of nerve grafts neither caused fibrosis of the corpus cavernosum, nor reduced penile vascular flow. CEEF results showed that sexual intercourse began after a mean of 13.7 months with frequency of sexual intercourse varying from once daily to once monthly. Acute complications were minimal. The study was limited by the small number of cases. CONCLUSIONS: A total of 60% of patients were able to achieve full penetration, on average, 13 months after reinnervation surgery. Patients previously submitted to radiotherapy had slower return of erectile function. We conclude that penile reinnervation surgery is a viable technique, with effective results, and could offer a new treatment method for ED after RP.


Assuntos
Disfunção Erétil/etiologia , Disfunção Erétil/cirurgia , Nervo Femoral/cirurgia , Pênis/inervação , Pênis/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Prostatectomia/efeitos adversos , Nervo Sural/transplante , Idoso , Sistema Nervoso Autônomo/cirurgia , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/métodos , Prostatectomia/métodos , Fatores de Tempo , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
5.
J Craniofac Surg ; 28(7): 1654-1660, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28834840

RESUMO

Reconstructive surgery to craniofacial deformities caused by tumor ressections, traumas or congenital malformation are frequent in medicine practice. It aims to provide the patients with better quality of life and functional improvement of speech, breathing, chewing, and swallowing. Many are the techniques described in the literature to recover bone defects. This study evaluated a vascularized galeal and periosteum flap in rabbits, which could possibly substitute the bone graft in reconstructive surgery, especially for facial defects. It involved rabbits, divided into 12 groups, submitted to a surgical procedure to construct the galea and periosteum cranial flap filled with fragments of cranial bone, platelet-rich plasma, mesenchimal stem cells, and hyaluronic acid. The evaluation methods included image examinations and histological analysis.The results demonstrated bone formation with the use of platelet-rich plasma, mesenchimal stem cells, and bone fragments. The use of several enrichment materials of osseous cellular stimulation improved the quality and bone tissue organization. The more enrichment factor used, the better the tissue quality result was.Much research should be done to improve the methods and to analyze if results in human have the same bone formation as it happened in rabbits.


Assuntos
Ácido Hialurônico/metabolismo , Células-Tronco Mesenquimais/citologia , Periósteo , Plasma Rico em Plaquetas/fisiologia , Retalhos Cirúrgicos/cirurgia , Animais , Osteogênese , Periósteo/citologia , Periósteo/cirurgia , Coelhos , Procedimentos de Cirurgia Plástica
6.
Aesthetic Plast Surg ; 40(4): 466-74, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27178568

RESUMO

INTRODUCTION: Crows' feet wrinkles are caused by the action of the orbicularis oculi muscle on overlying skin. Treatment options range from botulinum toxin to a multitude of surgical methods. We first described our technique in 2003 and refined it in 2006. We highlight the evolution of our technique and look at our results to assess the effectiveness of our technique. OBJECTIVE: The aim of this article is to show our experience of 13 years in 134 patients with our technique of orbicularis oculi myectomy. METHODS: From September 2000 to July 2013, we operated on 134 patients with an age range of 28-77 years. Of these patients, 104 had myectomies via lifting and 22 via a blepharoplasty approach. Five patients had myectomies for treatment of blepharospasm and a further three patients to restore symmetry in facial palsy. An evaluation of the results was performed by two medical students. RESULTS: Our results showed reduction of the wrinkles in all cases. For the statistical analysis the Wilcoxon test was performed. The p value was less than 0.001 showing a significant reduction of crows' feet wrinkles in both sides when the orbicularis myectomy was performed, via blepharoplasty or lifting. For myectomy performed for blepharospasm or facial palsy, the statistical analysis was not done due to the low numbers. CONCLUSION: In the appropriate patient, orbicularis oculi myectomy is an effective and long-term treatment for crows' feet wrinkles with a low risk of complications and high patient satisfaction. 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 .


Assuntos
Blefarospasmo/cirurgia , Músculos Faciais/cirurgia , Músculos Oculomotores/cirurgia , Ritidoplastia/métodos , Adulto , Idoso , Blefarospasmo/tratamento farmacológico , Toxinas Botulínicas/administração & dosagem , Estudos de Coortes , Estética , Músculos Faciais/efeitos dos fármacos , Humanos , Pessoa de Meia-Idade , Músculos Oculomotores/efeitos dos fármacos , Estudos Retrospectivos , Medição de Risco , Envelhecimento da Pele , Cirurgia Plástica/métodos , Resultado do Tratamento
7.
Aesthetic Plast Surg ; 44(5): 1891-1892, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32591858
8.
Aesthetic Plast Surg ; 38(4): 788-95, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24943646

RESUMO

BACKGROUND: Individuals with facial paralysis of 6 months or more without evidence of clinical or electromyographic improvement have been successfully reanimated utilizing an orthodromic temporalis transfer in conjunction with end-to-side cross-face nerve grafts. The temporalis muscle insertion is released from the coronoid process of the mandible and sutured to a fascia lata graft that is secured distally to the commissure and paralyzed hemilip. The orthodromic transfer of the temporalis muscle overcomes the concave temporal deformity and zygomatic fullness produced by the turning down of the central third of the muscle (Gillies procedure) while yielding stronger muscle contraction and a more symmetric smile. The muscle flap is combined with cross-face sural nerve grafts utilizing end-to-side neurorrhaphies to import myelinated motor fibers to the paralyzed muscles of facial expression in the midface and perioral region. Cross-face nerve grafting provides the potential for true spontaneous facial motion. We feel that the synergy created by the combination of techniques can perhaps produce a more symmetrical and synchronized smile than either procedure in isolation. METHODS: Nineteen patients underwent an orthodromic temporalis muscle flap in conjunction with cross-face (buccal-buccal with end-to-side neurorrhaphy) nerve grafts. To evaluate the symmetry of the smile, we measured the length of the two hemilips (normal and affected) using the CorelDRAW X3 software. Measurements were obtained in the pre- and postoperative period and compared for symmetry. RESULTS: There was significant improvement in smile symmetry in 89.5 % of patients. CONCLUSION: Orthodromic temporalis muscle transfer in conjunction with cross face nerve grafts creates a synergistic effect frequently producing an aesthetic, symmetric smile. LEVEL OF EVIDENCE V: 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 at www.springer.com/00266 .


Assuntos
Expressão Facial , Músculos Faciais/transplante , Paralisia Facial/cirurgia , Transferência de Nervo/métodos , Procedimentos de Cirurgia Plástica/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Dissecação , Face/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Contração Muscular/fisiologia , Nervo Sural/transplante , Coleta de Tecidos e Órgãos , Adulto Jovem
9.
Acta Cir Bras ; 39: e392524, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38808818

RESUMO

PURPOSE: To evaluate the use of the latest generation smartphone camera in performing arterial microanastomosis in rats. METHODS: Ten Wistar rats were divided into 2 groups and underwent anastomosis of the right carotid artery with the aid of magnification from a microscope (group M) and a smartphone camera (group S), to compare patency in 72 hours, as well as to measure the weight of the animals, diameter of the carotid arteries and anastomosis time. RESULTS: There was no statistical difference between the weight of the animals or the diameter of the carotid arteries. There was a statistical difference for the time spent on anastomoses, which was greater in group S, with higher rates of thrombosis (p < 0.05). CONCLUSIONS: Although our patency and anastomosis time results were statistically lower in the smartphone group, there was success in some cases. As the segment continues to progress, it is likely that the results will improve in line with the evolution of camera technology.


Assuntos
Anastomose Cirúrgica , Artérias Carótidas , Microscopia , Microcirurgia , Ratos Wistar , Smartphone , Animais , Microcirurgia/instrumentação , Microcirurgia/métodos , Microscopia/instrumentação , Microscopia/métodos , Anastomose Cirúrgica/instrumentação , Anastomose Cirúrgica/métodos , Artérias Carótidas/cirurgia , Masculino , Fatores de Tempo , Grau de Desobstrução Vascular , Ratos , Reprodutibilidade dos Testes
10.
Aesthetic Plast Surg ; 37(6): 1120-7, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24142115

RESUMO

BACKGROUND: The goal of mentoplasty is to improve chin projection. Traditionally, this is accomplished by either mandibular osteotomy or alloplastic implants. However, these procedures are not free of complications. This report describes gliding mentoplasty, a novel, simple technique for chin projection. METHODS: The 12 patients in this study underwent gliding mentoplasty. By means of a 2-cm intraoral incision, a subcutaneous dissection was made in the caudal direction. The dissection then proceeded in the subperiosteal plane, leaving a 1-cm cuff of muscle attached to the bone, and advanced toward the lower border of the chin. Subsequently, the dissection was extended laterally, and the whole mental area was dissected from the surrounding tissue. Three 2-0 monofilament nylon sutures were placed in the submandibular periosteum and connected through the remaining muscle cuff to the periosteum. These key sutures allowed the submandibular region to slide forward, project the subcutaneous tissue and mentalis muscle, define the labiomental fold, and improve the pogonion projection. RESULTS: Gliding mentoplasty resulted in a symmetric projection of the chin in all cases. In two patients, a submandibular dimple developed, which spontaneously resolved in 1 month. No revision surgery was performed, and no tissue relapse was noted. The mean follow-up period was 24.7 ± 5.17 months (range 19-33 months). All the patients were satisfied with the result. CONCLUSION: Gliding mentoplasty is a simple, easy-to-perform, rapid surgical technique of chin projection that produces low pain, rapid recovery, and excellent cosmetic results. 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 .


Assuntos
Mentoplastia/métodos , Lipectomia/métodos , Cicatrização/fisiologia , Adulto , Queixo , Estudos de Coortes , Terapia Combinada , Estética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/fisiopatologia , Satisfação do Paciente/estatística & dados numéricos , Resultado do Tratamento , Adulto Jovem
11.
Plast Reconstr Surg Glob Open ; 11(6): e4978, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37334390

RESUMO

Ischemia-reperfusion injury can occur in several clinical conditions, and it has been widely studied in the context of skin flaps. Vascular distress results in an imbalance between the supply and demand of oxygen to living tissues, and the result of this process is tissue necrosis. Several drugs have been studied to reduce vascular distress of skin flaps and tissue loss. Methods: The present study performed a systematic review of literature in the main databases (PubMed, Web of Science, LILACS, SciELO, and Cochrane), including articles published in the last 10 years. Results: It was observed that phosphodiesterase inhibitors, mainly types III and V, have shown promising results in terms of vascularization of the postoperative skin flap, especially when started on the first postoperative day and maintained for 7 days. Conclusion: New studies with different posology, duration of use, and new drugs are needed to better elucidate the use of this substance to optimize the circulation of skin flaps.

13.
Plast Reconstr Surg ; 149(3): 624-627, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35196677

RESUMO

SUMMARY: A recently introduced novel fragmentation technique has made it possible to convert fat tissue from apronectomy into large-scale viable lipograft, providing a glimpse of an alternative to traditional liposuction and its harvesting limitations. The purpose of this study was to assess the initial clinical evidence on fragmented fat transfer to restore volume and enhance deflated gluteal contours in a sample of massive weight loss patients. The authors retrospectively reviewed medical records of 20 women who received autologous buttock fat grafts that were harvested and fragmented following belt lipectomies and/or fleur-de-lis abdominoplasties. The average total volume subcutaneously grafted into the buttocks was 720 ml (bilateral), ranging from 500 ml to 960 ml. No local gluteal complications, such as seroma, infection, fat necrosis, or subcutaneous nodulations, were reported. Photographic observation of postoperative results over a 6- to 14-month follow-up period showed clear enhancement of body contouring in all patients, especially in those in whom fat transfer was combined with circumferential lifts. Fat fragmentation has proved useful and effective in providing great amounts of viable fat graft in a safe, simple, and reproducible technique without noticeable complications. The method eliminates the organic response to the insult of liposuction while using the entirety of formerly discarded apronectomy tissue to provide fine, transferable, autologous fat without increasing operative time. Although preliminary, the authors' clinical findings with this new technique support further studies of fragmented fat as an alternative to liposuction in gluteal fat grafting. Additional potential applications, including in wound healing and regenerative medicine, are worth exploring. . CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Assuntos
Tecido Adiposo/transplante , Contorno Corporal/métodos , Nádegas/cirurgia , Redução de Peso , Abdominoplastia , Adulto , Estética , Feminino , Humanos , Estudos Retrospectivos , Transplante Autólogo
14.
Plast Reconstr Surg Glob Open ; 10(7): e4288, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35813111

RESUMO

Moebius syndrome is a rare congenital facial palsy that can generate serious emotional repercussions, mainly due to the inability to smile. Currently, no treatment is available; however, surgery can restore muscle function. This case report introduces a new technique for the treatment of Moebius syndrome with zygomatic muscle neurotization using nerve grafts and end-to-side neurorrhaphies, in a 3-year-old girl diagnosed with bilateral Moebius syndrome who was unable to smile on the left side. After 4 years, the patient presented with full smile restoration on the left side, with right and left independent movements and complete symmetry.

15.
Acta Cir Bras ; 35(12): e351207, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33503220

RESUMO

PURPOSE: To evaluate the influence of mesenchymal stem cells from adipose tissue in the end-to-side neurorrhaphy, focusing in the nerve regeneration and the muscle reinnervation in acute trauma. METHODS: 140 animals were randomly divided in seven groups: control, denervated, end-to-side neurorrhaphy between distal stump of common peroneal nerve and tibial nerve (ESN), ESN wrapped in fascia, ESN wrapped in fascia and platelet gel, ESN wrapped in platelet gel, ESN wrapped in fascia and platelet gel within stem cells (without culture) removed from the adipose tissue. Mass measurements of the animal and of cranial tibial muscles, electromyography, walking track analysis tests and histological examinations of the nerves and muscles after 180 days was performed. RESULTS: In the groups where the ESN was performed, the results were always better when compared to the denervated group, showing reinnervation in all ESN groups. The most sensitive methods were walking track and histological analysis. Only the group with stem cells showed values similar to the control group, as well as the functional indices of peroneal nerve and the number of nerve fibers in the peroneal nerve. CONCLUSIONS: Stem cells were effective in ESN according with the functional index of the peroneal nerve, evaluated by walking track analysis and the number of nerve fibers in the peroneal nerve.


Assuntos
Nervo Fibular , Nervo Tibial , Animais , Músculo Esquelético , Regeneração Nervosa , Procedimentos Neurocirúrgicos , Ratos , Células-Tronco , Nervo Tibial/cirurgia
16.
Rev. bras. cir. plást ; 39(2): 1-7, abr.jun.2024. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1556497

RESUMO

Introdução: Este estudo tem o objetivo de avaliar o efeito da compressão intermitente imediata sobre anastomoses arteriais microcirúrgicas em comparação com compressão fixa e com utilização isolada de irrigação com soro fisiológico e heparina em laboratório experimental. Método: 12 ratos Wistar foram aleatoriamente divididos em três grupos para terem suas artérias femorais seccionas e anastomosadas de forma término-terminal, para comparação de patência com 30 minutos e 7 dias. Grupo I: foi realizada compressão intermitente imediata sobre a anastomose por 60 segundos; grupo II: uma compressão fixa foi mantida imediatamente após a anastomose, também por 60 segundos; grupo III, após o término da anastomose, não foi feita nenhuma intervenção adicional. Além da avaliação da patência, os animais foram pesados e medidos os diâmetros arteriais operados. Resultados: 24 artérias femorais foram abordadas. As médias de peso inicial dos ratos dos grupos I, II e III foram, respectivamente, de 243,8g, 254,6g e 260,4g, enquanto as finais foram de 264,4g, 281g e 282,1g (p<0,001). O diâmetro médio das artérias abordadas foi, respectivamente, de 0,89mm, 0,88mm e 0,90mm, e os tempos de anastomoses em minutos, de 25,6, 24,5 e 24,5, respectivamente; As patências finais após 7 dias foram, respectivamente, de 62,5% (p=0,07), 25% (p=0,48) e 50% (p=0,13). Conclusão: A compressão intermitente imediata pode ser realizada ao término de anastomoses arteriais microcirúrgicos sem prejuízo na patência final do procedimento.


Introduction: This study aims to evaluate the effect of immediate intermittent compression on microsurgical arterial anastomoses in comparison with fixed compression and only observation in an experimental laboratory. Methods: The two femoral arteries of twelve male Wistar rats were sectioned and reanastomosed to compare patency at 30 minutes and 7 days. Group I: immediate intermittent compression was performed over the anastomosis for 60 s; group II: a fixed compression was maintained immediately after the anastomosis for 60 s; group III: after completion of the anastomosis, no additional intervention was performed. In addition to the patency assessment, the animals were weighed and the operated arterial diameters were measured. Results: Twenty-four femoral arteries were examined. Initial average weights of the rats in groups I, II, and III were 243.8g, 254.6g, and 260.4g, respectively, while the final weights were 264.4g, 281g, and 282.1g (p<0.001), respectively; mean diameter of the approached arteries was 0.89, 0.88, and 0.90mm, respectively, and the anastomoses (time in minutes) were 25.6, 24.5, and 24.5, respectively; final patencies after 7 days were 62.5% (p=0.07), 25% (p=0.48), and 50% (p=0.13), respectively. Conclusion: Immediate intermittent compression can be performed at the end of microsurgical arterial anastomoses without affecting the final patency of the procedure.

17.
Acta cir. bras ; 39: e392524, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS, VETINDEX | ID: biblio-1556666

RESUMO

ABSTRACT Purpose: To evaluate the use of the latest generation smartphone camera in performing arterial microanastomosis in rats. Methods: Ten Wistar rats were divided into 2 groups and underwent anastomosis of the right carotid artery with the aid of magnification from a microscope (group M) and a smartphone camera (group S), to compare patency in 72 hours, as well as to measure the weight of the animals, diameter of the carotid arteries and anastomosis time. Results: There was no statistical difference between the weight of the animals or the diameter of the carotid arteries. There was a statistical difference for the time spent on anastomoses, which was greater in group S, with higher rates of thrombosis (p < 0.05). Conclusions: Although our patency and anastomosis time results were statistically lower in the smartphone group, there was success in some cases. As the segment continues to progress, it is likely that the results will improve in line with the evolution of camera technology.

18.
Plast Reconstr Surg ; 141(4): 507e-516e, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29595723

RESUMO

BACKGROUND: It is reasonable that deflated tissue in massive weight loss patients may demand not only lifting but also some extent of central body tightening, by the fleur-de-lis procedure. Although achieving nice contouring results, poor visible scars, including umbilical complications, have restricted the indications for the anterior vertical approach. The purpose of this article is to present the authors' experience with the inner scar umbilical reconstruction, reflecting overall results in vertical abdominoplasties. METHODS: Massive weight loss patients who underwent fleur-de-lis abdominoplasties with the inner scar umbilicus were reviewed retrospectively. The original stalk was resected along with the surgical specimen, and two marked parallel skin flaps were kept and sutured against each other into the deep medial fascia, to reconstruct the umbilical base. Additional sutures were made to approximate fat tissue immediately under and above it, enhancing a deepening effect. Conventional upper and lower vertical closure helped to establish the tridimensional shape of the new navel. RESULTS: One hundred ten consecutive patients were studied, and 52 (47 percent) presented small inflammatory exudate arising from the inner suture, which resolved with conservative dry dressings. No further umbilical complications such as infection, necrosis, dehiscence, widening, or stenosis were reported, and all patients showed natural and scarless new navels with nice shapes and correct position. CONCLUSIONS: The inner scar umbilicus is a simple, safe, and reproducible technique, presenting low complication rates with sustainable and natural results. High-quality navel reconstruction favors the indication of vertical abdominoplasties, especially for post-bariatric surgery body contouring. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Assuntos
Abdominoplastia/métodos , Cicatriz/cirurgia , Complicações Pós-Operatórias/cirurgia , Umbigo/cirurgia , Adulto , Cirurgia Bariátrica , Cicatriz/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Umbigo/patologia
19.
Rev Assoc Med Bras (1992) ; 53(5): 395-400, 2007.
Artigo em Português | MEDLINE | ID: mdl-17952347

RESUMO

BACKGROUND: This study evaluated the effects of a silicone membrane on the treatment of the raw flesh area in wounds. METHODS: The experimental study was carried out with 30 male Wistar rats divided into three groups: in the GG group, the raw area was treated with gauze, in the GH group with homograft, and in the GS group with a silicone membrane. Animals were sacrificed at fourteen days of postoperative. The studied attributes were body mass variation, histological study quantified by morphometric analysis evaluating the number of neovessels, fibroblasts, collagen fibers, leucocytes, monocytes; and using a micrometric ruler measurement of the raw area's thickness. Data were then submitted to statistical analysis. RESULTS: There was no significant difference between the animals' mass (p=0.0685). Predominance of neovessels (p<0.01), fibroblasts (p<0.001) and thickness of the raw flesh were observed in G S animals. There was predominance of leucocytes (p<0.021) and monocytes (p<0.0001) in G H animals. Also, no significant difference between the groups as for collagen fibers (p=0.0536) was observed. CONCLUSION: The silicone membrane promoted granulation tissue with a large number of neovessels, fibroblasts and greater thickness.


Assuntos
Bandagens , Queimaduras/terapia , Tecido de Granulação/efeitos dos fármacos , Silicones/uso terapêutico , Cicatrização/efeitos dos fármacos , Animais , Curativos Hidrocoloides , Índice de Massa Corporal , Queimaduras/patologia , Modelos Animais de Doenças , Avaliação Pré-Clínica de Medicamentos , Fibroblastos/química , Inflamação , Masculino , Membranas , Distribuição Aleatória , Ratos , Ratos Wistar , Silicones/química , Estatísticas não Paramétricas , Cicatrização/fisiologia
20.
Rev. bras. cir. plást ; 37(4): 518-522, out.dez.2022. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1413236

RESUMO

Introdução: A paralisia facial necessita de um tratamento multidisciplinar e as opções cirúrgicas são individualizadas para cada paciente e conforme a experiência da equipe médica. O Retalho Ortodrômico Temporal (ROT) é uma forma de correção bem documentada na literatura, com resultados satisfatórios. Um dos passos de sua realização é a coleta da fáscia lata para ponte entre o tendão temporal e os lábios. O objetivo é propor uma padronização da quantidade necessária de fáscia lata e técnica de coleta simplificada. Métodos: Descrição cirúrgica da medida de fáscia necessária para o procedimento e sua coleta. Resultados: Procedimento replicável e seguro conforme experiência do autor sênior. Conclusão: A tática de coleta proposta pode facilitar a realização deste procedimento e torná-lo mais seguro para os pacientes em diferentes serviços de saúde.


Introduction: Facial paralysis requires a multidisciplinary treatment, and surgical options are individualized for each patient according to the medical team's experience. The Temporal Orthodromic Flap (TOF) is a well-documented form of correction in the literature, with satisfactory results. One of the steps of its accomplishment is the collection of the fascia lata to bridge between the temporal tendon and the lips. The objective is to propose a standardization of the required amount of fascia lata and a simplified collection technique. Methods: Surgical description of the fascia measure necessary for the procedure and collection. Results: Replicable and safe procedure according to the senior author's experience. Conclusion: The proposed collection tactic can facilitate the performance of this procedure and make it safer for patients in different health services.

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