Prelaminated Supraclavicular Island Flap for Total Ear Reconstruction: A New Technique.

Major ear reconstruction has progressed over the past years with the emergence of new techniques directed mainly to patients without available or usable local skin. However, microsurgical transfer requires specific training and eligible patients. The authors report a successful ear reconstruction with a prelaminated supraclavicular island flap in 3 stages, which may be a valuable resource for selected patients or when microsurgery is not available. Advantages and disadvantages of this new technique are discussed, and a possible solution to achieve a more satisfactory result is suggested.

Outcomes of Immediate Internal Pudendal Artery Perforator Flap Reconstruction for Irradiated Abdominoperineal Resection Defects.

BACKGROUND: There are many previous reports for using the internal pudendal artery perforator flap in vulvovaginal reconstruction; however, reports of this flap for perineal reconstruction after abdominoperineal excision of the rectum are scarce. OBJECTIVE: The purpose of this study was to evaluate the outcomes of immediate internal pudendal artery perforator flap reconstruction for irradiated abdominoperineal resection defects. DESIGN: This was a prospective case series. SETTINGS: This flap could represent a step forward over other perineal flap approaches or primary closure. PATIENTS: A total of 73 consecutive patients with anorectal tumors were included. INTERVENTIONS: The study included immediate perineal reconstruction using 122 internal pudendal artery perforator flaps after abdominoperineal excision of the rectum. MAIN OUTCOME MEASURES: Dimensions of the perineal defect (in centimeters squared), hospital stay (days), healing time (days), and postoperative complications (Clavien-Dindo grades) were measured. RESULTS: The means of the perineal defect, hospital stay, and healing time were 51.62 cm, 15.94 days, and 38.52 days. The higher the patient BMI, the longer healing time (p = 0.02); Clavien-Dindo complications grades III to IV were greater in patients with perineal defect ≥60 cm (p = 0.03; OR = 10.56); postoperative complications were higher both in patients with anal squamous cell carcinoma (p = 0.005; OR = 6.09) and in patients with comorbidities (p = 0.04; OR = 2.78); hospital stay (p= 0.001) and healing time (p < 0.001) were higher in patients who had postoperative complications. The complete perineal wound healing at 12 weeks was achieved by 95% of patients, and our 30-day mortality rate was 4%. LIMITATIONS: As a nonrandomized study, our results have to be interpreted with caution. CONCLUSIONS: Multiple previously described advantages associated with internal pudendal artery perforator flap were also observed here, reinforcing the idea that it is reliable, versatile, and a useful option for perineal reconstruction after abdominoperineal excision of the rectum. Therefore, we propose that this flap could be considered as the first choice for perineal reconstruction in selected patients with moderate and some large defects after abdominoperineal excision of the rectum. See Video Abstract at http://links.lww.com/DCR/A367.

Chimerical anterolateral thigh flap for plantar reconstruction.

OBJECTIVE: The purpose of this study is to evaluate the results of reconstruction and rehabilitation of patients with plantar defects by using a chimerical flap of muscle and skin from anterolateral thigh. METHODS: Twenty-five patients with plantar defects were reconstructed with a chimerical anterolateral thigh (ALT) flap, composed by a vastus lateralis muscle segment and a thinned skin island. Neurorrhaphy between lateral femoral cutaneous nerve and calcaneal nerve was performed in 7 patients. Evaluation of flap contour and stability and patient ambulation was performed 6 and 12 months after surgery. Evaluation of cutaneous sensiblity of ALT flap and contralateral thigh was performed 12 months after surgery using Pressure Specified Sensory Device™ (PSSD™). RESULTS: Flap viability was complete in 23 patients and 2 patients had complications with partial flap loss of its cutaneous component. Six months postoperatively, flap contour, and stability was considered good in 19 and 21 patients respectively, and all 25 patients presented good ambulation. Twelve months postoperatively, all 25 patients presented good flap contour and stability, as well as good ambulation. All 7 flaps undergoing to reinnervation partially recovered cutaneous sensibility in comparison to donor site (contralateral thigh). Cutaneous tactile thresholds (g/mm(2) ) of static one-point test and moving one-point test from the ALT flap and the contralateral thigh presented statistically significant differences, for both comparisons (P = 0.009, P = 0.002). CONCLUSION: This flap is suitable for reconstruction of plantar defects, with good flap contour and stability, proper patient ambulation and low complication rates.

Anatomical comparison among the anterolateral thigh, the parascapular, and the lateral arm flaps.

OBJECTIVE: This study aims to compare the major anatomical aspects among anterolateral thigh, parascapular and lateral arm flaps. METHODS: Sixty flaps were dissected in 20 human cadavers, comparing their vascular pedicle length, flap thickness and arterial/venous pedicle diameters. RESULTS: The vascular pedicle length (from the origin of the vascular pedicle to its entry into the skin flap) of anterolateral thigh flap (13.43 ± 3.92 cm, lateral circumflex femoral artery) was longer than parascapular (9.07 ± 1.20 cm, circumflex scapular artery) and lateral arm flap (8.90 ± 1.65 cm, posterior collateral radial artery) (P < 0.001). The thickness of lateral arm flap (6.32 ± 2.33 mm) was lesser than parascapular (8.59 ± 2.93 mm) and anterolateral thigh flap (9.30 ± 3.54 mm) (P < 0.001). The arterial/venous pedicle diameters of lateral arm flap (2.37 ± 0.69 mm / 2.61 ± 0.74 mm) were lesser than parascapular (3.46 ± 0.80 mm / 4.07 ± 0.87 mm) and anterolateral thigh flap (3.26 ± 0.74 mm / 3.87 ± 0.70 mm) (P < 0.001). CONCLUSIONS: The vascular pedicle length of anterolateral thigh flap was the longest and that lateral arm flap presented a pedicle with the smallest arterial and venous diameters, in addition to being the thinnest flap.

The descending branch of the lateral femoral circumflex artery is a good option in CABG with arterial grafts.

INTRODUCTION: The descending branch of the lateral femoral circumflex artery is an option for coronary artery bypass grafting. OBJECTIVE: To evaluate the early patency and adaptation of lumen diameter using multidetector computed angiotomography. METHODS: Thirty-two patients were selected to undergo coronary artery bypass grafting using the descending branch of the lateral circumflex artery, the internal thoracic artery, and other grafts. Evaluations were carried out through high resolution computed tomography performed on the 7th and 90th postoperative day. Diameters of the descending branch of the lateral circumflex artery and the left internal thoracic artery were measured 3 cm before the distal anastomosis, in the middle portion, and 3 cm after the proximal anastomosis. Diameters were compared using paired t-test (P<0.05). RESULTS: Descending branch of the lateral femoral circumflex artery wDescending branch of the lateral femoral circumflex artery was used in 26 patients, as its use was not viable in six patients (18%). It was used as composite graft in all cases. The anterior descending branch was revascularized by the left internal thoracic artery in all cases. Patency rates of the descending branch of the lateral femoral circumflex artery were 96% and 92%, respectively. No occlusions were observed in the left internal thoracic artery (LITA) and no ischemic events were observed in the descending branch of the lateral circumflex. Descending branch of the lateral femoral circumflex artery increased the lumen diameter in the middle (P=0.001) and distal portions (P=0.006); the left internal thoracic artery (LITA) increased in the middle portion (P=0.001). CONCLUSION: Similar to the left internal thoracic artery, the descending branch of the lateral femoral circumflex artery showed high patency rate and positive luminal adaptation. This early evaluation confirms the descending branch of the lateral femoral circumflex artery as a potential alternative for grafting. Due to anatomical variations, preoperative femoral angiographic evaluation appears to be mandatory.

The descending branch of the lateral femoral circumflex artery is a good option in CABG with arterial grafts / Ramo descendente da artéria circunflexa lateral femoral é boa opção para revascularização do miocárdio com enxertos arteriais

INTRODUCTION: The descending branch of the lateral femoral circumflex artery is an option for coronary artery bypass grafting. OBJECTIVE: To evaluate the early patency and adaptation of lumen diameter using multidetector computed angiotomography. METHODS: Thirty-two patients were selected to undergo coronary artery bypass grafting using the descending branch of the lateral circumflex artery, the internal thoracic artery, and other grafts. Evaluations were carried out through high resolution computed tomography performed on the 7th and 90th postoperative day. Diameters of the descending branch of the lateral circumflex artery and the left internal thoracic artery were measured 3 cm before the distal anastomosis, in the middle portion, and 3 cm after the proximal anastomosis. Diameters were compared using paired t-test (P<0.05). RESULTS: Descending branch of the lateral femoral circumflex artery wDescending branch of the lateral femoral circumflex artery was used in 26 patients, as its use was not viable in six patients (18%). It was used as composite graft in all cases. The anterior descending branch was revascularized by the left internal thoracic artery in all cases. Patency rates of the descending branch of the lateral femoral circumflex artery were 96% and 92%, respectively. No occlusions were observed in the left internal thoracic artery (LITA) and no ischemic events were observed in the descending branch of the lateral circumflex. Descending branch of the lateral femoral circumflex artery increased the lumen diameter in the middle (P=0.001) and distal portions (P=0.006); the left internal thoracic artery (LITA) increased in the middle portion (P=0.001). CONCLUSION: Similar to the left internal thoracic artery, the descending branch of the lateral femoral circumflex artery showed high patency rate and positive luminal adaptation. This early evaluation confirms the descending branch of the lateral femoral circumflex artery as a potential alternative for grafting. Due to anatomical variations, preoperative femoral angiographic evaluation appears to be mandatory.

INTRODUÇÃO: O ramo descendente da artéria circunflexa lateral é um enxerto pouco avaliado e pode ser uma opção para a revascularização do miocárdio. OBJETIVO: Avaliar a perviabilidade e o remodelamento arterial do ramo descendente da artéria circunflexa lateral, em três meses de seguimento, por meio de angiotomografia de artérias coronárias. MÉTODOS: Foram analisados 32 pacientes submetidos à revascularização do miocárdio com ramo descendente da artéria circunflexa lateral, artéria torácica interna esquerda e outros enxertos. A avaliação foi realizada por meio da tomografia computadorizada de alta resolução, realizada no 7º e 90º dias de pós-operatório. O diâmetro do ramo descendente da artéria circunflexa lateral foi medido 3 cm antes da anastomose distal, na porção média e 3 cm após a anastomose proximal. As mesmas medidas foram realizadas para a artéria torácica interna esquerda. Os diâmetros foram comparados pelo método t de Student pareado (significância P<0,05). RESULTADOS: O ramo descendente da artéria circunflexa lateral foi adequado para a utilização em 26 pacientes. Em seis (18%) pacientes, o ramo descendente da artéria circunflexa lateral era inviável. Em todos os casos, o ramo descendente da artéria circunflexa lateral foi empregado sob a forma de enxerto composto. Todos os pacientes receberam artéria torácica interna esquerda para o ramo descendente anterior. A perviabilidade do ramo descendente da artéria circunflexa lateral foi de 96% e 92%, em 7 e 90 dias de pós-operatório, respectivamente. Não foram detectadas oclusões da artéria torácica interna esquerda. Não foram detectados sinais de espasmo do ramo descendente da artéria circunflexa lateral. O ramo descendente da artéria circunflexa lateral apresentou aumento de diâmetro nas porções média (P=0,001) e distal (P=0,006) e a artéria torácica interna esquerda, aumento na porção média (P=0,001). CONCLUSÃO: O remodelamento positivo sugere que o ramo descendente da artéria circunflexa lateral tem comportamento semelhante à artéria torácica interna esquerda e pode ser uma excelente opção para a revascularização do miocárdio com enxertos arteriais. Em virtude das variações anatômicas, estudos de pré-operatório podem auxiliar na seleção de casos.

Sensibility of the ear after otoplasty.

Changes in skin sensibility occur in various postoperative plastic surgeries, especially when they involve major skin and subcutaneous dissection. There were no studies so far that objectively compared changes of ear sensibility. This prospective study was conducted to compare ear sensibility before and after otoplasty. Patients with prominent ears (n = 15) underwent bilateral otoplasty. Ear tactile sensibility was tested preoperatively and 6 and 12 months after surgery by Pressure Specified Sensory Device, an apparatus that quantifies cutaneous pressure sensation (g/mm(2)). Comparison between preoperative and 6-months postoperative results indicated an increment on mean skin pressure thresholds; however, mean thresholds between pre- and 12 months postoperative period were similar. Vibratory and hot/cold sensibility did not present any difference during this period. This is the first comparative assessment of ear tactile sensibility using quantitative methods. After otoplasty, initially there was reduction in an ear tactile sensibility, followed by a return to levels similar to preoperative sensibility.

Nerve sources for facial reanimation with muscle transplant in patients with unilateral facial palsy: clinical analysis of 3 techniques.

Ninety-one patients with long-standing unilateral facial palsy and submitted to reanimation of the face with muscle transplant were divided into 3 nonrandomized groups: group I: 2-stage facial reanimation, cross face followed by gracilis muscle transplant, 58 patients; group II: 1-stage reanimation with latissimus dorsi muscle transplant, 11 patients (a branch of the facial nerve on the nonparalyzed side of the face was used as the nerve source for reanimation in groups I and II); group III: 1-stage reanimation with gracilis muscle transplant and neural coaptation of the respective nerve and the ipsilateral masseteric branch of the trigeminal nerve, 22 patients. No microvascular complications were observed. The average interval between surgery and initial muscle contractions was 11.1 months, 7.2 months, and 3.7 months in group I, group II, and group III, respectively. The quality (intensity and shape) of the smile, voluntary or involuntary, obtained on the reanimated side in relation to the unaffected side was considered good or excellent in 53.4%, 54.5%, and 86.3% of the patients in groups I, II, and III, respectively. In group I, the average age of the patients with excellent or good results (19.8 + 10.5 years) was significantly lower than that of the patients with fair or poor results or absence of movement (36.5 + 13.3 years). The smile was considered emotional or involuntary in 34% of the patients in group I and 45% in group II. Most of the patients in each group were only able to produce "voluntary smiles". Crossed synkinesis with lip puckering was observed in 48% of the patients in group I and 90% in group II. The results obtained with 1-stage facial reanimation with masseteric nerve were more uniform and predictable than those obtained with the other techniques evaluated in this study.

Hematoma intraneural experimental em ratos: avaliação da recuperação funcional e histomorfometria neural / Experimental intraneural hematoma model in rats: evaluation of functional recovery and neural histomorphometry

A formação do hematoma intraneural com comprometimento de nervos periféricos pode ocorrer após trauma ou coagulopatias. O tratamento expectante ou abordagem cirúrgica descompressiva ainda não estão definidos. Foram estudados 40 ratos da raça Wistar divididos em 4 grupos. No grupo A realizou-se injeção intraneural de 0,2 ml de sangue autógeno no nervo ciático direito. No grupo B, após produção do hematoma, fez-se descompressão imediata com epineurotomia longitudinal. No grupo D realizamos liberação imediata do hematoma com neurólise interfascicular. No grupo C (CONTROLE) apenas realizou-se a exposição do nervo ciático sem formação de hematoma. A avaliação da função nervosa foi feita com o índice de Função Ciática de Bain-Mackinnon-Hunter (IFC). O grupo A apresentou IFC inicial de -28,43, com recuperação funcional no 5° dia. A drenagem imediata desse hematoma através de uma epineurotomia longitudinal (B) determinou retorno da função ciática normal desde o 1° dia (IFC= -14,42). Tratando o hematoma através da neurólise interfascicular observamos um IFC inicial de -23,69 e retorno da função ciática normal no 3° dia. Os parâmetros histomorfométricos apontaram melhora dos parâmetros de isquemia após os 2 tipos de intervenção cirúrgica aplicadas neste estudo. Não houve diferença entre os tipos de intervenções aplicadas.

Emergence of intraneural hematoma with involvement of peripheral nerves can occur after trauma or coagulation disorders. The decision for expectant management or decompressive surgical techniques is still controversial. Forty male Wistar rats were divided into 4 groups. In group A, an intraneural injection of autologous blood was provided at the right sciatic nerve. In group B, after the hematoma creation, a longitudinal epineurotomy was performed. In the group C (sham-operated), the sciatic nerve was exposed without hematoma. In group D. immediately after the hematoma creation, an interfascicular neurolysis was performed. Nerve function recovery was assessed using the Bain-Mackinnon-Hunter Sciatic Function Index (SFI). At the end of the study, the animals were sacrificed and a specimen of the sciatic nerve at compression midpoint was removed for morphometric analysis. Group A displayed an initial SFI of -28.43, with full functional recovery on the fifth day. Immediate drainage of the hematoma by longitudinal epineurotomy (group B) promoted recovery of normal sciatic function on the first day (SFI -14.42). Addressing the hematoma via interfascicular neurolysis resulted in an initial SFI of -23.69 and recovery of normal sciatic function on the third day. The morphometric variables indicated an improvement of ischemic parameters following both types of surgical intervention.

Tratamento do canal arterial persistente em neonatos prematuros: análise de 18 casos / Treatment of patent ductus arteriosus in neonate premature: analysis of 18 cases

A presente investigaçäo tem o propósito de analisar, retrospectivamente, os resultados obtidos em 18 pacientes neonatos prematuros, submetidos a operaçäo para oclusäo da PCA, no período entre julho de 1990 e dezembro de 1993 (42 meses), sendo 12 (66,6 por cento) pacientes do sexo feminino, com idade que variou entre 10 e 44 (20,8 mais ou menos 8,3)dias, idade gestacional entre 26 e 28 (27,1 mais ou menos 0,9) semanas. No dia da operaçäo o peso dos pacientes esteve compreendido entre 700 e 1380 (985,8 mais ou menos 181,6) gramas. A insuficiência respiratória ocorreu em todos os pacientes, sendo a principal indicaçäo cirúrgica, estando em 6 (33,3 por cento) pacientes associada à insuficiência cardíaca congestiva. A indometacina endovenosa foi utilizada no período pré-operatório em 9 (50 por cento) pacientes na tentativa de se obter o fechamento farmacológico, sem sucesso, do canal arterial e apesar de näo influenciar nos resultados pós-operatórios, apresentou como principal efeito secundário a reduçäo significativa da diurese (p,0,001), que se normalizou após quatro dias do uso da droga. A técnica operatória empregada fo a toracotomia póstero-lateral esquerda trans-pleural com fixaçäo de três ou quatro clipes metálicos para oclusäo do canal arterial. O exame ecocardiográfico pré-operatório, realizado em 15 (83,2 por cento) pacientes, mostrou que a relaçäo entre o diâmetro do átrio esquerdo/aorta estava aumentada com quatro meses após a operaçä, evidenciando tendência de normalizaçäo da funçäo cardíaca. Um (5,5 por cento) paciente apresentou reabertura do canal arterial no pós-operatório imediato, sendo submetido à reoperaçäo para ligadura do canal. Näo foi observada diferença significativa no tempo necessário de intubaçäo orotraqueal (IOT) (p=0.586) bem como do tempo de permanência com fraçäo inspiratória de oxigênio (FIO2), <40 por cento e >40 por cento,60 por cento no período pré e pós-operatório (p=0,841 e p=0,692, respectivamente), mas com reduçäo significativa do tempo de permanência com FIO2,60 por cento p=0,033). O período de internaçäo hospitalar variou de 43 a 157(96,0 mais ou menos 24,8)dias. Näo houve mortalidade operatória, observando-se ainda baixa morbidade com este método. As causas de óbito, no período pós-operatório, näo estiveram relacionadas com o tratamento cirúrgico. Pode-se concluir que a ligadura cirúrgica da PCA, nos pacientes neonatos e prematuros, é método eficaz e seguro, podendo ser praticado com baixa morbidade e mortalidade.