Saphenofemoral arteriovenous fistula as hemodialysis access

Abstract Background An upper limb arteriovenous (AV) fistula is the access of choice for haemodialysis (HD). There have been few reports of saphenofemoral AV fistulas (SFAVF) over the last 10-20 years because of previous suggestions of poor patencies and needling difficulties. Here, we describe our clinical experience with SFAVF. Methods SFAVFs were evaluated using the following variables: immediate results, early and late complications, intraoperative and postoperative complications (up to day 30), efficiency of the fistula after the onset of needling and complications associated to its use. Results Fifty-six SFAVF fistulas were created in 48 patients. Eight patients had two fistulas: 8 patent (16%), 10 transplanted (20%), 12 deaths (24%), 1 low flow (2%) and 20 thrombosis (39%) (first two months of preparation). One patient had severe hypotension during surgery, which caused thrombosis of the fistula, which was successfully thrombectomised, four thrombosed fistulae were successfully thrombectomised and revised on the first postoperative day. After 59 months of follow-up, primary patency was 44%. Conclusion SFAVF is an adequate alternative for patients without the possibility for other access in the upper limbs, allowing efficient dialysis with good long-term patency with a low complication rate.

Goal-directed fluid management based on pulse pressure variation monitoring during high-risk surgery: a pilot randomized controlled trial

Abstract Introduction Several studies have shown that maximizing stroke volume (or increasing it until a plateau is reached) by volume loading during high-risk surgery may improve post-operative outcome. This goal could be achieved simply by minimizing the variation in arterial pulse pressure (ΔPP) induced by mechanical ventilation. We tested this hypothesis in a prospective, randomized, single-centre study. The primary endpoint was the length of postoperative stay in hospital. Methods Thirty-three patients undergoing high-risk surgery were randomized either to a control group (group C, n = 16) or to an intervention group (group I, n = 17). In group I, ΔPP was continuously monitored during surgery by a multiparameter bedside monitor and minimized to 10% or less by volume loading. Results Both groups were comparable in terms of demographic data, American Society of Anesthesiology score, type, and duration of surgery. During surgery, group I received more fluid than group C (4,618 ± 1,557 versus 1,694 ± 705 ml (mean ± SD), P < 0.0001), and ΔPP decreased from 22 ± 75 to 9 ± 1% (P < 0.05) in group I. The median duration of postoperative stay in hospital (7 versus 17 days, P < 0.01) was lower in group I than in group C. The number of postoperative complications per patient (1.4 ± 2.1 versus 3.9 ± 2.8, P < 0.05), as well as the median duration of mechanical ventilation (1 versus 5 days, P < 0.05) and stay in the intensive care unit (3 versus 9 days, P < 0.01) was also lower in group I. Conclusion Monitoring and minimizing ΔPP by volume loading during high-risk surgery improves postoperative outcome and decreases the length of stay in hospital. Trial registration NCT00479011

Prognostic factors for survival in patients with colorectal liver metastases: experience of a single brazilian cancer center

CONTEXT: Liver metastases are a common event in the clinical outcome of patients with colorectal cancer and account for 2/3 of deaths from this disease. There is considerable controversy among the data in the literature regarding the results of surgical treatment and prognostic factors of survival, and no analysis have been done in a large cohort of patients in Brazil. OBJECTIVES: To characterize the results of surgical treatment of patients with colorectal liver metastases, and to establish prognostic factors of survival in a Brazilian population. METHOD: This was a retrospective study of patients undergoing liver resection for colorectal metastases in a tertiary cancer hospital from 1998 to 2009. We analyzed epidemiologic variables and the clinical characteristics of primary tumors, metastatic disease and its treatment, surgical procedures and follow-up, and survival results. Survival analyzes were done by the Kaplan-Meier method and the log-rank test was applied to determine the influence of variables on overall and disease-free survival. All variables associated with survival with P<0.20 in univariate analysis, were included in multivariate analysis using a Cox proportional hazard regression model. RESULTS: During the period analyzed, 209 procedures were performed on 170 patients. Postope-rative mortality in 90 days was 2.9% and 5-year overall survival was 64.9%. Its independent prognostic factors were the presence of extrahepatic disease at diagnosis of liver metastases, bilateral nodules and the occurrence of major complications after liver surgery. The estimated 5-year disease-free survival was 39.1% and its prognostic factors included R1 resection, extrahepatic disease, bilateral nodules, lymph node involvement in the primary tumor and primary tumors located in the rectum. CONCLUSION: Liver resection for colorectal metastases is safe and effective and the analysis of prognostic factors of survival in a large cohort of Brazilian patients showed similar results to those pointed in international series. The occurrence of major postoperative complications appears to be able to compromise overall survival and further investigation in needed in this topic.

Consequências sistêmicas da cirurgia bariátrica e suas repercussões na saúde bucal

INTRODUÇÃO: O controle da obesidade mórbida pode ser realizado através da cirurgia bariátrica que leva à restrição e/ou à má-absorção de alimentos. O objetivo dessa revisão foi identificar consequências desse procedimento e suas repercussões na saúde bucal. MÉTODO: Foi realizada busca na Biblioteca Virtual em Saúde, sendo incluídos artigos com relação direta ou indireta entre cirurgia bariátrica e saúde bucal e publicados nos últimos dez anos. RESULTADOS: Verificaram-se algumas complicações decorrentes dessa operação, como regurgitação crônica e deficiências nutricionais, que podem trazer repercussões na cavidade bucal como erosão dentária, perda óssea e cárie dentária. Por outro lado, existem consequências positivas como controle da diabetes, da apnéia e melhora da auto-estima, que tornam os pacientes menos susceptíveis à complicações na cavidade oral, como xerostomia e doença periodontal. CONCLUSÃO: A manutenção da saúde bucal adequada em pacientes submetidos à cirurgia bariátrica contribui para o sucesso após a operação, resguardando os benefícios e minimizando os efeitos colaterais.

Mastopexia após perda ponderal maciça: suspensão dérmica, remodelação do parênquima e aumento com tecido autógeno

INTRODUÇÃO: Pacientes com perda ponderal significativa podem apresentar mamas com ptose acentuada, perda de projeção do polo superior e excesso de tecido na porção toracolateral. Rubin & Khachi descreveram técnica de mastopexia com suspensão dérmica e remodelação do parênquima associada a aumento com tecido autógeno, tratando a deformidade mamária e o excesso toracolateral em um só estágio. Neste trabalho, é ilustrada essa técnica cirúrgica e demonstradas sua reprodutibilidade e suas complicações. MÉTODO: Foram operadas 14 pacientes com deformidade graus 2 e 3 pela Escala de Pittsburgh, no Hospital Estadual de Sapopemba (São Paulo, SP, Brasil), no período de dezembro de 2008 a dezembro de 2009, utilizando a técnica referida. Foram analisados os seguintes dados: tipos de deformidade das mamas, translocação do complexo areolopapilar (CAP), dimensões dos retalhos, tempo cirúrgico, tempo de permanência do dreno e incidência de complicações. RESULTADOS: A média de idade das pacientes foi de 41,21 + 7,67 anos e o índice de massa corporal médio foi de 29,30 + 2,77. O tempo de seguimento das pacientes variou de 3 meses a 18 meses, com média de 8 meses. Dentre as 14 pacientes operadas, 4 (28,6%) apresentavam deformidade grau 3 e 10 (71,4%), grau 2. A média de translocação do CAP foi de 6,38 cm. As dimensões médias do retalho foram de 25,21 cm x 6,92 cm. O tempo cirúrgico médio foi de 188,57 minutos. Os drenos permaneceram, em média, por 6,21 dias. Foram observadas as seguintes complicações: epiteliose de CAP, deiscência na junção do T, hematoma pequeno e linfedema toracolateral. CONCLUSÕES: A mastopexia com suspensão dérmica, remodelação do parênquima e aumento com tecido autólogo é uma técnica reprodutível, rápida e com baixo índice de complicações.

Análise comparativa da evolução e das complicações pós-operatórias nas cirurgias plásticas do contorno corporal em pacientes idosos e jovens com perda ponderal maciça

INTRODUÇÃO: Os procedimentos aplicados a pacientes ex-obesos idosos após terapêuticas bariátricas estão em ascensão. Dados fidedignos quanto à evolução e às complicações nesse grupo populacional ainda são escassos na literatura. O objetivo do presente estudo é analisar a evolução e as complicações em abdominoplastias realizadas em pacientes com idade mais avançada após perda ponderal maciça, e compará-las às de pacientes mais jovens. MÉTODO: Foram analisados, retrospectivamente, pacientes com perda ponderal maciça submetidos a cirurgia para contorno da região abdominal, entre julho de 2005 e julho de 2011, no Hospital Estadual Sapopemba (HESAP). Como critério para divisão dos grupos, a fim de analisar o período pós-operatório e as complicações das abdominoplastias realizadas após perda ponderal maciça, foi estabelecida idade > 60 anos. RESULTADOS: Foram analisados 264 pacientes, 19 deles com idade entre 60 anos e 75 anos (grupo I) e 245 entre 22 anos e 59 anos (grupo J). O grupo I apresentou 10,5% de complicações maiores (P > 0,999) e 41,1% de complicações menores (P = 0,280), enquanto o grupo J obteve 10,6% de complicações maiores (P > 0,999) e 30,2% de complicações menores (P = 0,280). CONCLUSÕES: Os pacientes com > 60 anos de idade não apresentaram maior número de complicações que o grupo mais jovem.

Perineal rectosigmoidectomy on treatment of rectal procidentia: analysis of 48 cases

OBJECTIVE: To evaluate results obtained in 48 cases of perineal rectosigmoidectomy in patients with rectal procidentia. METHODS: 48 medical records of patients undergoing PRS were analyzed, retrospectively. RESULTS: Before surgery, 44 patients (77.1%) reported complaints of anal mass and rectal bleeding was reported 13 times (22.8%). The period of hospitalization was 3.91 days (2 to 12 days). Women were the majority (85.4%). The mean age was 73.8 years (49 to 101 years). The average time of surgery was 72 minutes (40 to 90 minutes). Mechanical anastomosis was performed in 72.9% and manual in 27.1%. Among the 12 (25%) patients with fecal incontinence, continence was achieved in 2 cases. Postoperative complications occurred in five cases - 10.5% (two pneumonia and three anastomotic leakages). Recurrence was verified in four patients (8,3%). There were no deaths related to the procedure. CONCLUSION: Perineal rectosigmoidectomy is a good surgical option for rectal procidentia, with low morbidity and mortality, low recurrence rate and short hospitalization length.

Relationship Between Oral Health-Related Quality of Life and the Position of the Lower Third Molar: Postoperative Follow-Up

Purpose: The aim of this study was to verify possible associations between oral health-related quality of life (QoL) and the position of the lower third molar among patients undergoing lower third molar surgery during the first postoperative week. Materials and Methods: We performed an interventional prospective study of 86 patients for whom the preoperative treatment plan included the removal of 2 third molar teeth from the same side in a 1-time procedure. The patients were divided into 2 groups depending on the position of the lower third molar. QoL was evaluated before and after the surgical procedure (during the first 7 days) with the Oral Health Impact Profile (OHIP) 14 questionnaire. Data were treated according to Stata 10.0 (StataCorp, College Station, TX). Variables were evaluated by use of split-plot analysis of variance for the repeated-measures analysis to identify the association between QoL and the position of the lower third molar. Results: Patients can have deterioration in their QoL immediately after surgery, especially during the first and second postoperative days, and subsequently show rapid improvement. The variation in the total OHIP score during the days after surgery was significant, whereas a decrease in QoL was observed immediately after the procedure (P = .001), which returned to initial value (preoperative) levels after the sixth postoperative day. The OHIP domains with higher scores (ie, those that had an impact) were physical pain, psychological discomfort, and physical disability (domains 2, 3, and 4, respectively). Conclusions: Teeth considered to be associated with technical difficulties for extraction based on their position had a higher score on the OHIP-14 questionnaire and worse health-related QoL score. QoL outcomes may be as important as clinical signs in decisions regarding third molar extractions. (C) 2012 American Association of Oral and Maxillofacial Surgeons J Oral Maxillofac Surg 70:779-786, 2012

Epidemiologic surveillance of postoperative endophthalmitis in a specialized ophthalmologic center in Sao Paulo, Brazil

This article describes a postoperative endophthalmitis (POE) surveillance system in place in a specialized ophthalmologic center in Sao Paulo, Brazil. The study involved a review of medical records from 2004-2009, during which a total of 31,999 intraocular surgeries were performed. Nineteen of these cases fulfilled the criteria for POE, for an infection rate of 0.06%. The main etiologic agent causing POE was Pseudomonas aeruginosa, identified in 42.1% of the cases (8/19). Copyright (C) 2012 by the Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

Early postoperative pelvic-floor biofeedback improves erectile function in men undergoing radical prostatectomy: a prospective, randomized, controlled trial

Erectile dysfunction (ED) and urinary incontinence are common complications following radical prostatectomy (RP). Although pelvic-floor biofeedback training (PFBT) may improve urinary continence following RP, its effects on the recovery of potency are unknown. Fifty-two patients selected for RP were prospectively randomized for a treatment group (n=26) receiving PFBT once a week for 3 months and home exercises or a control group (n=26), in which patients received verbal instructions to contract the pelvic floor. Erectile function (EF) was evaluated with the International Index of Erectile Function-5 (IIEF-5) before surgery and 1, 3, 6 and 12 months postoperatively. Patients were considered potent when they had a total IIEF-5 score >20. Continence status was assessed and defined as the use of no pads. Groups were comparable in terms of age, body mass index, diabetes, pathological tumor stage and neurovascular bundle preservation. A significant reduction in IIEF-5 scores was observed after surgery in both groups. In the treatment group, 8 (47.1%) patients recovered potency 12 months postoperatively, as opposed to 2 (12.5%) in the control group (P=0.032). The absolute risk reduction was 34.6% (95% confidence interval (CI): 3.8-64%) and the number needed to treat was 3 (95% CI: 1.5-17.2). A strong association between recovery of potency and urinary continence was observed, with continent patients having a 5.4 higher chance of being potent (P=0.04). Early PFBT appears to have a significant impact on the recovery of EF after RP. Urinary continence status was a good indicator of EF recovery, with continent patients having a higher chance of being potent.

Clinical and surgical evaluation of the indication of postoperative antibiotic prescription in third molar surgery

Objective. The aim of this study was to evaluate the need for antibiotic prescription in third molar surgery. Study design. A double-blind randomized study was carried out with 71 patients from CODONT (Dentistry Center of the Police of Sao Paulo). Amoxicillin, clindamycin, or no medication was administered for 7 days immediately after surgery. The participants evaluated the presence of pain, edema, interincisal distance (ID), presence of infection, Pell and Gregory classification, rescue analgesia, osteotomy, and odontosection. Results. There was no difference (P < .05) between antibiotics and control over the surgery duration, dose, visual analog scale (VAS), ID, and edema, yet significant differences were seen over time for VAS, edema, and ID. Conclusions. Antibiotic prescription should not be indicated in all clinical conditions, yet it is necessary to correctly evaluate factors such as systemic condition of the patient, skill of the operator, and contamination of the surgical environment. (Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114(suppl 5):S26-S31)