Pedro Soler Coltro

Collagen and Elastic Content of Abdominal Skin After Surgical Weight Loss

BackgroundCollapsed skin folds after bariatric weight loss are often managed by plastic procedures, but changes in dermal composition and architecture have rarely been documented. Given the potential consequences on surgical outcome, a prospective histochemical study was designed. The hypothesis was that a deranged dermal fiber pattern would accompany major changes in adipose tissue.MethodsFemale surgical candidates undergoing postbariatric abdominoplasty (n = 40) and never obese women submitted to control procedures (n = 40) were submitted to double abdominal biopsy, respectively in the epigastrium and hypogastrium. Histomorphometric assessment of collagen and elastic fibers was executed by the Image Analyzer System (Kontron Electronic 300, Zeiss, Germany).ResultsDepletion of collagen, but not of elastic fibers, in cases with massive weight loss was confirmed. Changes were somewhat more severe in epigastrium (P = 0.001) than hypogastrium (P = 0.007). Correlation with age did not occur.Conclusions(1) Patients displayed lax, soft skin lacking sufficient collagen fiber network. (2) Elastic fiber content was not damaged, and was even moderately increased in epigastrium; (3) Preoperative obesity negatively correlated with hypogastric collagen concentration; (4) Future studies should pinpoint the roles of obesity, and especially of massive weight loss, on dermal architecture and response to surgery.

Atuação da cirurgia plástica no tratamento de feridas complexas

OBJECTIVE: To report the performance of plastic surgery in the treatment of complex wounds in a tertiary hospital, analyzing its characteristics, types of injuries and approaches adopted, with emphasis on surgical treatment. METHODS: We conducted a etrospective analysis of patients with complex wounds treated by plastic surgery in a tertiary hospital in a period of five years (2006 to 2010). Data collection was obtained from visits made, serial assessments and records of the medical charts. RESULTS: There were 1927 patients treated (32 queries / month), mean age 46.3 years, predominantly male (62%). The surgical specialties requested 1076 consultations (56%), and the clinical, 851 (44%). The distribution by type of wound showed predominance of pressure ulcers (635/33%), traumatic wounds (570/30%), complicated surgical wounds (305/16%) and necrotizing wounds (196/10%), with the remainder represented by vasculitis (83 / 4%), venous ulcers (79 / 4%), diabetes (41 / 2%) and post-radiation (18 / 1%). The treatment was surgical in 1382 patients (72%) and non-operative in 545 cases (28%). There were 3029 operations, predominantly debridement (1988/65%) and skin grafting (619/21%) associated or not with negative pressure therapy (vacuum), followed by pedicle flaps (237 / 8 %), digital reimplantation (81 / 3%), microsurgical flaps (66 / 2%) and other (38 / 1%). CONCLUSION: The plastic surgeon played an important role in the treatment of complex wounds by adopting early surgical treatment, contributing to the effective resolution of cases.

The thoracodorsal artery perforator flap in the treatment of axillary hidradenitis suppurativa: effect on preservation of arm abduction.

Summary: Hidradenitis suppurativa is a chronic, recurrent inflammatory disease of the skin characterized by abscesses and scars. The axillary region is predominantly affected, leading to limited mobility of the arm due to scar retraction. This prospective study aimed to analyze the surgical treatment of severe lesions of axillary hidradenitis suppurativa by using the thoracodorsal artery perforator flap while focusing on the preservation of arm abduction. We enrolled 12 patients with severe axillary hidradenitis suppurativa who underwent bilateral surgical treatment of their lesions by radical excision, followed by immediate reconstruction with the thoracodorsal artery perforator flap. The amplitude of arm abduction was measured preoperatively and 6 months postoperatively by goniometry, and statistical analysis was performed using Students t test. Preoperative and 6-month postoperative mean amplitude of arm abduction were 98.7 degrees and 152.7 degrees, respectively, with a significant mean increase of 54 degrees (p < 0.0001). The thoracodorsal artery perforator flap can be used as a good option for axillary reconstruction after radical excision of severe lesions of hidradenitis suppurativa, and its use would allow a significant increase in the amplitude of arm abduction. It has several other advantages when compared with other types of coverage, including its anatomical proximity to the axilla, similar thickness, and high-quality skin. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Trends in the modes of delivery and their impact on perinatal mortality rates

OBJECTIVE To determine changes in the incidence of vaginal deliveries, cesarean sections, and forceps deliveries and their potential association with fetal, early neonatal, and perinatal mortality rates over time. METHODS A retrospective study was carried out and the occurrence of deliveries supervised by university services between January 1991 and December 2000 was determined. Data regarding fetal, early neonatal, and perinatal deaths were assessed using obstetric and pediatric records and autopsy reports. RESULTS Of a total of 33,360 deliveries, the incidence of vaginal deliveries, cesarean sections, and forceps deliveries was relatively steady (around 60, 30, and 10%, respectively) while, at the same time, there was a marked reduction in fetal mortality (from 33.3 to 13.0 per thousand), early neonatal mortality (from 30.6 to 9.0 per thousand), and perinatal mortality (from 56.4 to 19.3 per thousand). CONCLUSIONS The marked reduction in perinatal mortality rates seen during the study period without an increase in cesarean sections indicates that the decrease in perinatal mortality was not impacted by cesarean section rates. The plausible hypothesis seems to be that the reduction in perinatal mortality of deliveries performed under the supervision of university services was more likely to be associated with better neonatal care rather than the mode of delivery.

Cirurgia do contorno corporal no paciente após perda ponderal maciça: experiência de três anos em hospital público secundário

OBJETIVO: Apresentar a experiencia clinico-cirurgica de tres anos relacionada as cirurgias de contorno corporal no paciente apos perda ponderal macica, realizadas pela equipe de Cirurgia Plastica do Hospital Estadual de Sapopemba. METODOS: Estudo retrospectivo realizado no Hospital Estadual de Sapopemba, vinculado ao Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, no periodo de julho de 2005 a julho de 2008. Foram operados 98 pacientes submetidos a tratamento de obesidade morbida por meio de gastroplastia redutora, com sucesso para a tecnica, ou emagrecimento por metodo nao-cirurgico. Os criterios de exclusao foram tabagismo, intencao gestacional e instabilidade ponderal, exigindo-se peso estavel por pelo menos seis meses apos atingido a perda ponderal satisfatoria. RESULTADOS: Dos 98 pacientes operados, 97% eram do sexo feminino, com idade media de 40,5 anos e o metodo de emagrecimento foi cirurgico em 88% deles. Das 177 cirurgias plasticas realizadas, 46% foram abdominoplastias, seguidas por mastoplastias (15%), suspensoes de coxa (13%) e braquioplastias (12%). O periodo medio de internacao foi dois dias e as principais complicacoes diagnosticadas foram: seroma (28%), necroses/deiscencias de pequeno porte (18%), necroses/ deiscencias de grande porte (4%), hematomas (4%), tromboflebite superficial de veia safena (2%) e trombose venosa profunda (1%). CONCLUSAO: O desejo de cirurgias para melhora do contorno corporal apos perda ponderal macica constitui demanda crescente. Cabe ao cirurgiao plastico conhecer as peculiaridades clinicas e os riscos maiores de complicacoes desses pacientes, ponderar suas expectativas, analisar os resultados e manter a busca constante pelo aperfeicoamento das tecnicas cirurgicas.

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/mm2). 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.

Evaluation of cutaneous sensibility of the internal pudendal artery perforator (IPAP) flap after perineal reconstructions

BACKGROUND In oncological perineal reconstructions, the internal pudendal artery perforator (IPAP) flap is our flap of choice, supplied by perforator vessels from the internal pudendal artery and innervated by branches from the pudendal nerve and the posterior femoral cutaneous nerve. Data related to the evaluation of its cutaneous sensibility are scarce, discrepant, and subject to methodological criticism. OBJECTIVE The objective of this study was to evaluate the cutaneous sensibility of the IPAP flap 12 months after perineal reconstruction and compare it with the preoperative cutaneous sensibility of the gluteal fold (flap donor area). METHODS A prospective study of 25 patients undergoing abdominoperineal excision of rectum (APER) and reconstruction with bilateral VY advancement IPAP flap was conducted. The tactile, pain, thermal, and vibration sensibilities were analyzed in four areas of the gluteal fold preoperatively and in the four corresponding areas of the flap 12 months after surgery. Tactile sensibility was assessed using the Pressure Specified Sensory Device™ (PSSD™), which measures the pressure applied to the skin. The other types of sensibility were analyzed using a needle for pain, hot/cold contact for thermal, and a tuning fork for vibration sensibility. RESULTS A comparison between tactile sensibility thresholds on the gluteal fold preoperatively and on the flap 12 months after surgery showed no statistically significant difference, with p values>0.05 in all four areas evaluated. All patients had preserved pain, thermal, and vibration sensibility in all four areas, postoperatively. CONCLUSION In oncological perineal reconstructions after APER, it is expected that the cutaneous sensibility on the IPAP flap be maintained.

Alternative surgical treatment of paralytic lagophthalmos using autogenic cartilage grafts and canthopexy.

PurposeThis study aims to analyze the use of autogenic auricular cartilage grafts as weight for the upper eyelid in conjunction with lateral canthopexy for patients with mild paralytic lagophthalmos. This procedure was also accompanied by elevation of the lower eyelid using the cartilage graft for moderate cases. MethodsWe conducted a retrospective study including case series of 30 patients with paralytic lagophthalmos from 1997 to 2010. For mild cases, cartilage from the auricular scapha was placed in pretarsal space of the upper eyelid and cartilage from the concha was inserted in preaponeurotic space and then sutured to the levator aponeurosis in conjunction with lateral canthopexy. For moderate cases, lower eyelid was also elevated by suturing cartilage graft to tarsum and resting it by the inferior orbital rim. ResultsAll patients had some degree of keratopathy before the intervention. After treatment, they presented with evident clinical improvement, reduction of eye symptoms, and resolution of keratopathy. During the mean postoperative follow-up of 37.3 months, none of the patients presented with cartilage graft exposition, reabsorption, visibility, infection, or warping. Complete eye closure was achieved in 24 (80%) patients, whereas the remaining 6 (20%) patients had residual asymptomatic lagophthalmos. ConclusionsThe intervention using autogenic auricular cartilage grafts explained in this study was only effective for the treatment of mild and moderate cases of paralytic lagophthalmos. This outpatient surgery is associated with low morbidity and achievement of functional and aesthetic improvement.

Facial Palsy After Blunt Trauma and Without Facial Bone Fracture

A 14-year-old patient had a low-energy facial blunt trauma that evolved to right facial paralysis caused by parotid hematoma with parotid salivary gland lesion. Computed tomography and angiography demonstrated intraparotid collection without pseudoaneurysm and without radiologic signs of fracture in the face. The patient was treated with serial punctures for hematoma deflation, resolving with regression and complete remission of facial paralysis, with no late sequela. The authors discuss the relationship between facial nerve traumatic injuries associated or not with the presence of facial fractures, emphasizing the importance of early recognition and appropriate treatment of such cases.

Gluteal Augmentation with Silicone Implants: A New Proposal for Intramuscular Dissection

BackgroundGluteoplasty has gained notoriety over the last decades, which has motivated the development of various surgical techniques. Nevertheless, the fear of dissection of the intramuscular plane without direct visualization may inhibit learning and development of gluteal augmentation with implants. Moreover, literature detailing the technical steps of intramuscular dissection for the construction of the implant pocket is scarce. This study presents a new approach to intramuscular dissection for gluteal augmentation with silicone implants, a variation of the conventional surgical technique.MethodsWe performed a retrospective analysis of a series of 12 female patients submitted to a variation of the intramuscular dissection technique for gluteal augmentation with silicone implants. Data from patients, implants, follow-up time, postoperative complications, and the degree of patient satisfaction were obtained. This technique follows the principle of alternating spatulas to perform the blunt dissection of the implant pocket.ResultsIn this series, the proposed technique is controlled and safe for intramuscular dissection, which can be used for both experienced and training surgeons. This technique is based on well-known anatomical points and references. We observed that the implant was well positioned and covered, the patients were satisfied with the result, and the number of complications was low.ConclusionsThis variation of the intramuscular dissection technique for gluteal augmentation with silicone implants provides an easily reproducible and safe procedure that involves well-controlled technical steps, especially during dissection of the intramuscular pocket. In this series of patients, training surgeons learned faster, results were satisfactory, and the number of complications was low.Level of Evidence VThis 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.