Efficacy, Safety, and Performance of Isolated Left vs. Right Ventricular Pacing in Patients with Bradyarrhythmias: A Randomized Controlled Trial / Eficácia, Segurança e Desempenho da Estimulação Ventricular Esquerda versus Direita em Pacientes com Bradiarritmias: Ensaio Clínico Randomizado

Abstract Background: Considering the potential deleterious effects of right ventricular (RV) pacing, the hypothesis of this study is that isolated left ventricular (LV) pacing through the coronary sinus is safe and may provide better clinical and echocardiographic benefits to patients with bradyarrhythmias and normal ventricular function requiring heart rate correction alone. Objective: To assess the safety, efficacy, and effects of LV pacing using an active-fixation coronary sinus lead in comparison with RV pacing, in patients eligible for conventional pacemaker (PM) implantation. Methods: Randomized, controlled, and single-blinded clinical trial in adult patients submitted to PM implantation due to bradyarrhythmias and systolic ventricular function ≥ 0.40. Randomization (RV vs. LV) occurred before PM implantation. The main results of the study were procedural success, safety, and efficacy. Secondary results were clinical and echocardiographic changes. Chi-squared test, Fisher's exact test and Student's t-test were used, considering a significance level of 5%. Results: From June 2012 to January 2014, 91 patients were included, 36 in the RV Group and 55 in the LV Group. Baseline characteristics of patients in both groups were similar. PM implantation was performed successfully and without any complications in all patients in the RV group. Of the 55 patients initially allocated into the LV group, active-fixation coronary sinus lead implantation was not possible in 20 (36.4%) patients. The most frequent complication was phrenic nerve stimulation, detected in 9 (25.7%) patients in the LV group. During the follow-up period, there were no hospitalizations due to heart failure. Reductions of more than 10% in left ventricular ejection fraction were observed in 23.5% of patients in the RV group and 20.6% of those in the LV group (p = 0.767). Tissue Doppler analysis showed that 91.2% of subjects in the RV group and 68.8% of those in the LV group had interventricular dyssynchrony (p = 0.022). Conclusion: The procedural success rate of LV implant was low, and the safety of the procedure was influenced mainly by the high rate of phrenic nerve stimulation in the postoperative period.

Resumo Fundamento: Considerando-se os potenciais efeitos deletérios da estimulação do ventrículo direito (VD), a hipótese desse estudo é que a estimulação unifocal ventricular esquerda pelo seio coronário é segura e pode proporcionar melhores benefícios clínicos e ecocardiográficos aos pacientes com bradiarritmias que apresentam função ventricular normal, necessitando apenas da correção da frequência cardíaca. Objetivos: Avaliar a segurança, a eficácia e os efeitos da estimulação do ventrículo esquerdo (VE), utilizando um cabo-eletrodo com fixação ativa, em comparação à estimulação do VD. Métodos: Estudo clínico, randomizado, simples-cego em pacientes adultos com indicação de marca-passo (MP) devido a bradiarritmias e função ventricular sistólica ≥ 0,40. A randomização aleatória (VD vs VE) ocorreu antes do procedimento. Os desfechos primários do estudo foram: o sucesso, a segurança e a eficácia do procedimento proposto. Os desfechos secundários foram: a evolução clínica e alterações ecocardiográficas. Empregou-se os testes Qui-quadrado, Exato de Fisher e t de Student, com nível de significância de 5%. Resultados: De junho de 2012 a janeiro de 2014 foram incluídos 91 pacientes, sendo 36 no grupo VD e 55 no grupo VE. As características basais dos pacientes dos dois grupos foram similares. O implante de MP foi realizado com sucesso e sem nenhuma intercorrência em todos os pacientes do grupo VD. Dos 55 pacientes inicialmente alocados para o grupo VE, o implante do cabo-eletrodo em veias coronárias não foi possível em 20 (36,4%) pacientes. Dentre os 35 pacientes que permaneceram com o cabo-eletrodo no VE, a estimulação frênica foi a complicação mais frequente e foi detectada em 9 (25,7%) pacientes. Na fase de seguimento clínico, não houve hospitalizações por insuficiência cardíaca. Reduções superiores a 10% na fração de ejeção do VE foram observadas em 23,5% dos pacientes do grupo VD e em 20,6% dos pacientes do grupo VE (p = 0,767). A análise feita pelo Doppler tecidual mostrou que 91,2% dos indivíduos do grupo VD e 68,8% dos do grupo VE apresentaram dissincronia interventricular (p = 0,022). Conclusões: A taxa de sucesso do implante no VE foi baixa e a segurança do procedimento foi influenciada, principalmente, pela alta taxa de estimulação frênica no pós-operatório.

Consideraciones bioéticas sobre la competencia asistencial para la rehabilitación implantoprotésica en el adulto mayor / Bioethical considerations on the assistance competence for the prosthesis implant rehabilitation in the elderly

Las investigaciones científicas y el desarrollo social han proporcionado una mirada nueva para enfocar la vida y, junto a ello, los criterios novedosos y necesarios en el campo de la ética, especialmente en todas las disciplinas de las ciencias médicas. A tales efectos, en el presente artículo se exponen algunos aspectos relacionados con los principios de la bioética en Estomatología, con el objetivo de analizar los factores objetivos y subjetivos para la rehabilitación implantoprotésica en el adulto mayor, teniendo en cuenta que la mayoría de las veces los resultados no son satisfactorios, influenciado por factores subjetivos.

Scientific investigations and social development have provided a new sight to focus life and, together with this, the novel and necessary approaches in the field of ethics, especially in all disciplines of the medical sciences. To such effects, some aspects related to the principles of bioethics in Stomatology are exposed in this work, with the aim of analyzing the objective and subjective factors for the prosthesis implant rehabilitation in the elderly, keeping in mind that most of the times the results are not satisfactory, influenced by subjective factors

Artificial sphincter "BR - SL - AS 904" in the treatment of urinary incontinence after radical prostatectomy: efficacy, practicality and safety in a prospective and multicenter study

ABSTRACT Purpose: The objective of the present study is to test the efficiency and practicality of a new artificial sphincter "BR - SL - AS - 904" in the control of urinary incontinence in post - PR patients and to evaluate their complications. Patients and Methods: Fifteen patients with incontinence after one year of radical prostatectomy were included prospectively. All patients underwent artificial urethral sphincter (AUS) implant "BR - SL - AS - 904" according to established technique. Independent variables such as free urinary flow, PAD weight test, ICIQ - SF score and urinary symptoms through the IPSS score were compared in different follow-up moments. Results: Patients submitted to AUS implantation did not present trans - operative or post - operative complications related to the surgical act such as: infection, hematoma, erosion or urinary retention. Device was inert to the body during the follow-up, showing an excellent adaptation of the patients, besides the easy handling. The mean age was 68.20 years 40% of the patients had systemic arterial hypertension, 6.7% diabetes mellitus, 6.7% were hypertensive and diabetic, 13.4% were hypertensive, had diabetes and hypercholesterolemia and 26.7% patients had no comorbidities. It was evidenced that the urinary flow peak during the follow-up remained stable. Decreased averages and median PAD weight test were 135.19 to 75.72 and 106.00 to 23.50, respectively. The IPSS score decreased and the quality of life increased (12.33 to 3.40 and 2.50 to 3.20 respectively). The ICQF - SF questionnaire score also showed a decrease, ranging from 16, 71 to 7.33. Conclusion: The artificial sphincter implant "BR - SL - AS 904" was reproducible, safe and effective in the control of urinary incontinence in post - PR patients.

Perfil clínico-epidemiológico de pacientes com pico hipertensivo após implante de válvula de Ahmed / Clinical and epidemiological profile of patients with hypertensive peak after Ahmed glaucoma valve implant

Resumo Objetivo: Relatar perfil clínico epidemiológico de pacientes que apresentaram o pico hipertensivo após o IVA e apontar possíveis fatores de risco associados. Métodos: Estudo retrospectivo, observacional e descritivo (revisão de prontuário de pacientes assistidos no IBOPC) de 2014 a 2016. Resultados: Foram analisados 40 pacientes com glaucoma submetidos à implante de válvula de Ahmed. O diagnóstico pré-operatório mais comum foi glaucoma secundário, sendo a indicação pós-transplante penetrante de córnea a mais frequente. 95% das cirurgias foi de implante de tubo isolado. 56% dos pacientes tinham cirurgia anti- glaucomatosa prévia. 46% necessitaram de procedimento cirúrgico posterior para manejo de complicações pós-operatórias, sendo que a mais frequente foi atalamia (9,7%). PIO média no pré-operatório = 28,6 ± 12.20mmHg, com uso de 3,41 medicações. Com 3 semanas a PIO média aumentou para 16mmHg, com uso de 0,42 medicações. Após 3 meses de cirurgia a PIO média estava em 16.5mmHg, com uso de 1,86 de medicações. Após 6 meses de seguimento a PIO média reduziu (16,4 ± 6.74mmHg), com 2,23 ± 1.45 medicações. A média da AV (Snellen) foi de 20/100p no pré-operatório e de 20/200 após 6° mês de cirurgia. Catorze pacientes preencheram os critérios para a FH, destes 6 obtiveram resolução da FH. Dos pacientes que desenvolveram a FH, 78,4% iniciaram a elevação da PIO entre a 2ª e 4ª semana de pós-operatório. Seis (14,6%) pacientes obtiveram sucesso cirúrgico completo, parcial em 36,6% e falência 31%. Conclusão: A fase hipertensiva pode ocorrer em parte dos pacientes após as semanas iniciais do procedimento cirúrgico. O conhecimento deste fenômeno, o preparo prévio do cirurgião, o acompanhamento regular do paciente e o controle da PIO com o uso de medicações são determinantes na resolução desta complicação.

Abstract Objective: To report the clinical epidemiological profile of patients who presented the hypertensive peak after VAT and to indicate possible associated risk factors. Methods: A retrospective, observational and descriptive study (review of medical records of patients assisted in the IBOPC) from 2014 to 2016. Results: We analyzed 40 patients with glaucoma submitted to Ahmed Glaucoma Valve implant. The most common preoperative diagnosis was secondary glaucoma, with the most frequent corneal penetrating post-transplant indication. 95% of the surgeries were of isolated tube implantation. 56% of patients had previous anti-glaucomatous surgery. 46% needed a posterior surgical procedure to manage postoperative complications, and the most frequent was atalamia (9.7%). IOP preoperatively = 28.6 ± 12.20mmHg, with use of 3.41 medications. At 3 weeks the mean IOP increased to 16mmHg, with use of 0.42 medications. After 3 months of surgery the mean IOP was 16.5mmHg, with use of 1.86 of medications. After 6 months of follow-up the mean IOP decreased (16.4 ± 6.74 mmHg), with 2.23 ± 1.45 medications. The mean of the AV (Snellen) was 20 / 100p in the preoperative period and 20/200 after the 6th month of surgery. Fourteen patients fulfilled the criteria for HP, of which 6 obtained HP resolution. Of the patients who developed HP, 78.4% started to elevate IOP between the 2nd and 4th postoperative week. Six (14.6%) patients had complete surgical success, partial in 36.6% and bankruptcy in 31%. Conclusion: The hypertensive phase may occur in part of the patients after the initial weeks of the surgical procedure. The knowledge of this phenomenon, the previous preparation of the surgeon, the regular monitoring of the patient and the control of IOP with the use of medications are determinant in the resolution of this complication.

Functional outcomes and quality of life after transobturatory slings: hand - made vs. commercial slings

ABSTRACT Surgical correction is the most efficient treatment for stress urinary incontinence (SUI), and transobturator sling (TO) has optimal results. The high cost of commercially available sling kits makes it difficult the access in most Brazilian public health services. Hand-made polypropylene slings, on the other hand, have been previously reported. The aim of the present study was to compare the effectiveness and safety of commercial vs. hand-made polypropylene mesh slings. Data from 57 women who underwent consecutive TO sling surgery to treat SUI were pros- pectively collected between 2012 and 2014, and divided in two groups for further compa- rison. In Group-1, 31 women underwent surgery with commercial slings. In Group-2, 26 women underwent hand-made polypropylene slings. Women were compared according to epidemiological data, perioperative evaluation, quality of life, urodynamic study, cure and complication rates. Results were objectively (stress test with Valsalva maneuver, with at least 200mL vesical repletion) and subjectively evaluated by the Patient Global Impression of Improvement(PGI-I), Visual Analog Scale (VAS) and ICIQ-SF. Success was defined as PGI-I, VAS and negative stress test. Group-1 (n=31) and Group-2 (n=26) had a mean age of 60 vs. 58years (p=0.386). All de- mographic data were similar. The mean VLPP was 75.6cmH2O vs. 76.6cmH2O (p=0.88). The mean follow-up was 24.3 vs. 21.5months (p=0.96). Success rates were 74.2% vs. 80.2% (p=0.556), with ICIQ-SF variation of 12.6 vs.15.5 (p=0.139) and PGI-I of 71% vs. 80% (p=0.225). There was only one major complication (urethrovaginal fistula in Group-1). In conclusion, handmade and commercial slings have similar effectiveness and safety. The manufacture technique has important key-points stated in the present manuscript.

Implante transcateter valvar aórtico (TAVI): onde estamos em 2018 / Transcatheter aortic valve implant (TAVI): where we are in 2018

Por cerca de 15 anos, o Implante Transcateter Valvar Aórtico (TAVI) passou por avanços tecnológicos, adquiriu experiência acumulada e tornou-se alternativa à cirurgia convencional. A principal indicação é a estenose aórtica degenerativa do idoso. Evidências atuais foram ampliadas para aqueles de risco intermediário e se tornaram mais robustas nos pacientes de alto risco e inoperáveis. Em situações específicas, como valva aórtica bicúspide, regurgitação aórtica pura, pacientes de baixo risco e bioprótese cirúrgica degenerada, os resultados ainda não são totalmente previsíveis, mas muito promissores. Os tipos de dispositivos atualmente liberados para uso clinico são divididos em: da geração inicial e os da nova geração, assim como em auto expansível, balão expansível e expansível mecanicamente. O sítio de acesso preferencial na atualidade é a via transfemoral. Outras alternativas de acessos também têm se mostrado viáveis e confiáveis. As principais complicações são vasculares, eventos neurológicos, distúrbios de condução e regurgitação paravalvar. Apesar da baixa incidência, a ruptura aórtica e a oclusão coronária são uma fonte de maior interesse, devido ao seu potencial impacto na morbimortalidade. A realização mais recente do procedimento em pacientes mais jovens faz necessária mais atenção à questões referentes à durabilidade e ao risco de trombose. Embora o TAVI ainda possa ser um procedimento complexo, após atingida experiência, existe a tendência de migração para uma abordagem mais simplificada com segurança. A seleção do paciente deve, idealmente, ser feita por uma equipe multidisciplinar e uma completa avaliação por imagem, em que a angitomografia é imprescindível, mandatória

For around fifteen years, Transcatheter Aortic Valve Implant (TAVI) has undergone technological advances, acquired accumulated experience, and become an alternative to conventional surgery. The main indication is degenerative aortic stenosis in the elderly patient. Current evidence has been extended to those with intermediate risk, and has become more robust in high-risk and inoperable patients. In specific situations, such as bicuspid aortic valve, pure aortic regurgitation, low-risk patients, and degenerated surgical bioprosthesis, the results are not totally predictable, but are very promising. The types of device currently released for clinical use are divided into first generation and new generation devices, and into auto-expandable, balloon-expandable, and mechanically-expandable. The preferential access site is currently the transfermoral route. Other access alternatives have also proven viable and reliable. The main complications are vascular, neurological events, conduction disturbances, and paravalvular regurgitation. Despite their low incidence, aortic rupture and coronary occlusion have attracted greater interest due to their potential impact on morbimortality. The more recent use of the procedure in younger patients raises issues related to durability and the risk of thrombosis. Although TAVI is still a complex procedure, after gaining experience, there is a tendency to move towards a more simplified, safer approach. The patient selection should ideally be carried out by a multidisciplinary team, and a complete imaging assessment that includes angiotomography is absolutely essential

An innovation in glaucoma surgery: XEN45 gel stent implantation / Uma inovação na cirurgia de glaucoma: implante de endoprótese de gel XEN45

ABSTRACT Purpose: To report follow-up data for patients who underwent XEN45 gel stent implantation, a new method of minimally invasive glaucoma surgery. Methods: Fifteen eyes in fifteen patients who underwent XEN45 gel stent implantation surgery were investigated in the study. All patients were examined preoperatively and at the following postoperative time points: 1 day; 1 and 2 weeks; and 1, 2, 3, 6, and 12 months. Intraocular pressure (IOP) was measured via Goldmann applanation tonometry. Combined surgical procedures (XEN45 + phacoemulsification + intraocular lens) were performed in patients who that had cataracts in addition to glaucoma. Results: The mean IOP values were significantly lower than the preoperative values at all postoperative visits (p<0.001). In two patients, the IOP exceeded 20 mmHg 12 months after surgery. These IOP increases were controlled by medical therapy, and none of the patients needed another surgical procedure. Conclusion: XEN45 gel stent implantation is a minimally invasive glaucoma surgery that ensures the effective reduction of IOP. This new treatment modality also avoids the destructive complications encountered in other invasive surgical procedures. However, further studies with greater numbers of patients and longer follow-up periods are needed to clarify certain points.

RESUMO Objetivo: Relatar os dados de acompanhamento dos pacientes que apresentaram implante de endoprótese de gel XEN45, um novo método de cirurgia de glaucoma minimamente invasiva. Métodos: Foram investigados quinze olhos de quinze pacientes que tiveram cirurgia de implante de endoprótese de gel XEN45 no estudo. Todos os pacientes foram examinados no pré-operatório e nos seguintes pontos de tempo pós-operatório: 1 dia; 1 e 2 semanas; E 1, 2, 3, 6 e 12 meses. A pressão intraocular foi medida pela tonometria de aplanamento de Goldmann. Procedimentos cirúrgicos combinados (XEN 45 + facoemulsificação + lente intraocular) foram realizados nos casos que apresentavam catarata além do glaucoma. Resultados: Os valores médios de PIO foram significativamente menores em todas as visitas pós-operatórias quando comparados aos valores pré-operatórios (p<0,001). Em 2 casos, os valores da pressão intraocular foram superiores a 20 mmHg aos 12 meses pós-operatório. Estes aumentos da pressão intraocular foram controlados por terapia médica, e nenhum dos pacientes necessitou de outro procedimento cirúrgico. Conclusão: Implantação de endoprótese de gel XEN45 é uma cirurgia de glaucoma minimamente invasiva que garante a redução efetiva da pressão intraocular. Esta nova modalidade de tratamento também evita as complicações destrutivas encontradas em outros procedimentos cirúrgicos invasivos. No entanto, estudos adicionais com um maior número de pacientes e períodos de acompanhamento mais longos são necessários para esclarecer certos pontos.

Reparación protésica en una paciente con hernia incisional catastrófica / Prosthetic repair in a patient with catastrophic incisional hernia

Se presenta el caso clínico de una paciente de 66 años de edad, blanca, con antecedentes de hipertensión arterial, diabetes mellitus de tipo II y sobrepeso, quien fue operada en el Hospital General Universitario Dr Juan Bruno Zayas Alfonso de Santiago de Cuba por presentar una eventración gigante en la pared abdominal anterior, que no le permitía deambular sin apoyo. Se realizó la reparación protésica que resultó eficaz y segura, con 13 años sin recurrencia

The case report of a 66 years white patient with a history of hypertension, type II diabetes mellitus and overweight is presented, who was operated on at Dr Juan Bruno Zayas Alfonso University General Hospital in Santiago de Cuba due to a considerable eventration in the front abdominal wall that didn't allow her wandering around without support. The prosthetic repair which was effective and safe, was carried out with no recurrence during 13 years

Indications and visual outcomes of intrastromal corneal ring segment implantation in a large patient series

OBJECTIVES: To describe the indications for and visual outcomes of intrastromal corneal ring segment implantation. METHODS: A large retrospective case-series chart-review study was conducted using Sorocaba Ophthalmological Hospital medical records. This study included 1222 eyes (1196 patients) that were surgically treated between November 2009 and December 2012. The following preoperative data were collected: age, gender, type of medical care and funding source, surgical technique, best-corrected visual acuity, manifest sphere and cylinder refractive error, maximum and minimum central keratometry, and pachymetry measurements of the cornea at the thinnest point and at the ring channel. The postoperative best-corrected visual acuity and patient satisfaction were also determined. The cases were classified into six groups: four keratoconus groups (severe, advanced, moderate and mild), a pellucid marginal degeneration group and a post-graft irregular astigmatism group. This study was approved by the Brazilian Registry of Clinical Trials (UTN number 1111-1182-6181, TRIAL RBR-6S72RF). RESULTS: The age (mean±standard deviation) of the patients was 31.0±10.0 years. The most prevalent pathology was keratoconus (1147 eyes, 93.8%). A correlation was found between ectasia severity and medical assistance (p<0.001), and the most serious cases was treated by the Brazilian public health system. No complications were found in a total of 1155 surgeries, and after surgery, 959 patients were satisfied. Among the 164 dissatisfied patients, the majority failed to show improved best-corrected visual acuity. CONCLUSION: Patients in the public health system underwent surgical intervention for keratoconus later than those with private sources of funding. In the vast majority of operated cases, the patients reported improvements in vision.

Artificial urinary sphincter revision for urethral atrophy: comparing single cuff downsizing and tandem cuff placement

ABSTRACT Objective To compare outcomes for single urethral cuff downsizing versus tandem cuff placement during artificial urinary sphincter (AUS) revision for urethral atrophy. Materials and Methods We identified 1778 AUS surgeries performed at our institution from 1990-2014. Of these, 406 were first AUS revisions, including 69 revisions for urethral atrophy. Multiple clinical and surgical variables were evaluated for potential association with device outcomes following revision, including surgical revision strategy (downsizing a single urethral cuff versus placing tandem urethral cuffs). Results Of the 69 revision surgeries for urethral atrophy at our institution, 56 (82%) were tandem cuff placements, 12 (18%) were single cuff downsizings and one was relocation of a single cuff. When comparing tandem cuff placements and single cuff downsizings, the cohorts were similar with regard to age (p=0.98), body-mass index (p=0.95), prior pelvic radiation exposure (p=0.73) and length of follow-up (p=0.12). Notably, there was no difference in 3-year overall device survival compared between single cuff and tandem cuff revisions (60% versus 76%, p=0.94). Likewise, no significant difference was identified for tandem cuff placement (ref. single cuff) when evaluating the risk of any tertiary surgery (HR 0.95, 95% CI 0.32-4.12, p=0.94) or urethral erosion/device infection following revision (HR 0.79, 95% CI 0.20-5.22, p=0.77). Conclusions There was no significant difference in overall device survival in patients undergoing single cuff downsizing or tandem cuff placement during AUS revision for urethral atrophy.

Artificial urinary sphincter for urinary incontinence after radical prostatectomy: a historical cohort from 2004 to 2015

ABSTRACT This study aimed to retrospectively evaluate a cohort of patients with prostate cancer and persistent urinary incontinence after radical prostatectomy. From January 2004 to December 2015, eighty-six individuals were identified to have received an AUS implant, provided by a private nonprofit HMO operating in Belo Horizonte, Brazil. On total, there were 91 AUS implants, with a median interval between radical prostatectomy and AUS implant of 3.6 years (IQR 1.9 to 5.5). The rate of AUS cumulative survival, after a median follow-up of 4.1 years (IQR 1.7-7.2 years), was 44% (n=40). The median survival of AUS implants was 2.9 years (IQR 0.5-7.9 years). Thirty-seven AUS implants (40.7%) resulted in grade III surgical complications. There were 5 deaths at 2.1, 4.7, 5.7, 5.7 and 6.5 years of follow-up, but none due to causes directly associated to the AUS implant. Persistent severe incontinence was documented in 14 (15.3%) additional patients. From the 51 AUS implants which resulted in grade III surgical complications or persistent severe incontinence, 24 (47.1%) underwent surgical revisions. Explantation of the sphincter or its components was observed in 6 cases (25.0%). Mechanical failure, described as fluid loss and/or inability to recycle the AUS device, was observed in 4 devices (16.7%). In conclusion, although AUS implants are recommended as the gold-standard treatment of severe urinary incontinence after prostatectomy, the observed high rates of malfunction and grade III adverse events are a matter of concern warranting further assessment on the safety and efficacy of these devices.

The long-term results of temporary urethral stent placement for the treatment of recurrent bulbar urethral stricture disease

ABSTRACT Aim: To evaluate the long term outcomes of temporary urethral stent placement for the treatment of recurrent bulbar urethral stricture. Materials and Methods: Twenty-eight patients who underwent temporary polymer coated urethral stent placement due to recurrent bulbar urethral stricture between 2010 and 2014 were enrolled in the study. The long term outcomes of the patients were analyzed. Results: The mean age of the patients was 62.3±6.4 (44–81). The overall clinical success was achieved in 18 (64.2%) of the 28 patients at a median (range) follow-up of 29 (7–46) months. No patient reported discomfort at the stent site. Stone formation was observed at the urethral stent implantation area only in one patient. Stenosis occurred in the distal end of the stents in two patients and took place in bulbar urethra in seven patients after removed the stents. The mean maximum urine flow rates were 6.24±2.81mL/sec and 19.12±4.31mL/sec before and at 3 months after the procedure, respectively. Conclusion: In this study, the success rate of temporary urethral stent placement has remained at 64.2% at a median follow-up of 29 months. Therefore, our outcomes have not achieved desired success rate for the standard treatment of recurrent bulbar urethral stricture.

Function of obturator prosthesis after maxillectomy and prosthetic obturator rehabilitation / Função da prótese obturadora após maxilectomia e reabilitação protética obturadora

ABSTRACT INTRODUCTION: Maxillary defects are usually rehabilitated by a prosthetic obturator. OBJECTIVE: This study aimed to evaluate the functioning of obturators prosthesis in patients with unilateral defects after maxillectomy. METHODS: Of 49 patients, 28 underwent to maxillectomy as a result of tumor ablative surgery, and acquired unilateral maxillary defects. Evaluation of the function was performed by applying the Obturator Functional Scale (OFS). RESULTS: From a total of 49 patients, 28 were treated as follows: 9 with a conventional retained obturator prosthesis (COP), 11 (39%) with an enhanced retentive obturator prosthesis with stud attachment (POP) and 8 (28%) with an enhanced retentive obturator prosthesis with magnetic attachment (POM). The mean OFS score was 80. Scores on functions of speech, swallowing and chewing reached statistical significances (p < 0.05) among these three subgroups. Comparing COP and MOP groups, the scores of OFS in the domains of "Speech-ability to speak in public" and "Swallowing-leakage with liquids" were significantly higher in AOP group. Comparing COP group, the scores of OFS in "Swallowing-leakage with solid" and "Chewing/eating" domains were increased significantly (p < 0.05) both in MOP and AOP groups. CONCLUSION: Obturator prosthesis improves oral function of patients after maxillary defects; the retention of the obturator prosthesis enhanced by the addition of attachments showed more benefits in oral function.

RESUMO INTRODUÇÃO: Em geral, os defeitos da maxila são reabilitados por uma prótese obturadora. OBJETIVO: O estudo avaliou o funcionamento da prótese obturadora em pacientes com defeitos unilaterais após maxilectomia. MÉTODO: De 49 pacientes, 28 foram submetidos a maxilectomia como cirurgia de ablação tumoral e tiveram como sequela defeitos maxilares unilaterais. A avaliação do funcionamento foi efetuada pela aplicação da Escala Funcional do Obturador (EFO). RESULTADOS: De um total de 49 pacientes, 28 foram tratados da seguinte forma: nove com prótese obturadora retentiva convencional (POC), 11 (39%) com prótese obturadora retentiva com fixação por pino (POP) e oito (28%) com prótese obturadora retentiva com fixação magnética (POM). O escore médio na EFO foi de 80. Os escores para funções da fala, deglutição e mastigação alcançaram significância estatística (p < 0,05) entre os três subgrupos. Na comparação entre os grupos POC e POM, os escores da EFO nos domínios da "Fala-capacidade de discursar em público" e "Deglutição-vazamento de líquidos" foram significativamente mais altos no grupo POP. Na comparação com o grupo POC, os escores da EFO nos domínios de "Deglutição-vazamento com sólido" e "Mastigação/ingestão" estavam significativamente aumentados (p < 0,05) nos grupos POM e POP. CONCLUSÃO: A prótese obturadora melhorou o funcionamento oral de pacientes com defeitos maxilares; a retenção da prótese obturadora reforçada pela adição de dispositivos de fixação demonstrou maiores benefícios na função oral.

Tratamiento paliativo del cáncer esofágico y de la unión gastro-esofágica mediante colocación de prótesis transtumoral por vía endoscópica / Esophageal stents for symptomatic treatment of esophageal cancer: experience in 35 patients

Background: Esophageal cancer is usually diagnosed when it is beyond surgical ablation. Aim: To report the results of palliative treatment of dysphagia secondary to non-resectable esophageal carcinoma using self-expanding stents. Material and Methods: Review of medical records of 35 patients aged 57 to 94 years (21 males) with a non resectable esophageal carcinoma in whom a self-expanding stent was placed. Results: Eighty six percent of patients had severe dysphagia and it improved in all after the procedure. Two patients experienced a displacement of the stent. Three patients required the placement of a second stent. One patient died 30 days after the procedure due to pneumonia. Conclusions: Self expandable stents provide symptomatic relief to patients with non resectable esophageal carcinoma.

Objetivo: Mostrar método de paliación de disfagia por medio de prótesis autoexpandible, en pacientes con cáncer de esófago o unión esófago-gástrica en etapa IV, o considerados inoperables por patologías concomitantes severas. Material y Método: Estudio retrospectivo, 112 pacientes atendidos en nuestro hospital por cáncer de esófago, 43 en etapa IV se consideraron irresecables, de este grupo, en 8 se efectuó dilatación o gastrostomía endoscópica percutánea. Los otros 35 pacientes con disfagia de origen tumoral fueron tratados con prótesis esofágica como método paliativo al no resultar candidatos para tratamiento quirúrgico por estado de avance de enfermedad o sufrir patologías agregadas que la contraindicaban. Resultados: Tipo histológico más frecuente fue carcinoma epidermoide; nivel de disfagia fue grado 3 en mayoría de los pacientes (86,4 por ciento), la que mejoró luego de la instalación de prótesis alcanzando nivel de disfagia grado 1 (81,8 por ciento). Conclusiones: El uso de prótesis autoexpandibles es útil en el tratamiento de disfagia en pacientes con obstrucción de lumen esofágico secundario a crecimiento de tumor maligno.

Adjustable perineal male sling using tissue expander as an effective treatment of post-prostatectomy urinary incontinence

Purpose To report our intermediate experience in treating patients with severe incontinence using an adjustable perineal male sling with a tissue expander. Materials and Methods An adjustable male sling procedure was performed on 21 patients with severe incontinence. The underlying etiology of urinary incontinence was radical prostatectomy in 13 patients, open prostatectomy in 5 patients and transurethral prostate resection in 3 patients. The difference between the classical and the adjustable sling is that in the latter there is a 25 mL tissue expander between the two layers of polypropylene mesh with an injection port. Adjustment of the sling was performed with saline via an inflation port, in case of recurrence or persistence of incontinence. Results The mean age of the patients was 66.2±7.3 (50-79) years and mean pad usage was 6.4±0.6 per day. The mean follow-up time was 40.1±23.2 (6-74) months. The balloon was postoperatively inflated on average with 11.6±5.7 (5-25) mL. After the mean 40.1 months of follow-up, 16 of the 21 patients (76.2%) were dry (11 patients, 0 pads; 5 patients using safety pads), 3 patients (14%) had mild and 2 (9.8%) had moderate degree post-prostatectomy urinary incontinence (PPI). The average maximum urine flow rate of the patients was 15.6±4.7 (10-31) mL/s. No residual urine was found. In 2 patients, all parts of the device were removed due to infection and discomfort, and in 3 patients only the inflation component was removed due to local scrotal infection. Conclusions Our results show that using an adjustable perineal male sling with a tissue expander seems to be an efficient, and safe surgical treatment option in patients with PPI. .

Tratamento endovascular de aneurisma de aorta abdominal pela técnica de chaminé / Endovascular repair of abdominal aortic aneurism using the chimney grafttTechnique

Paciente idoso, portador de insuficiência renal não dialítica e doença pulmonar obstrutiva crônica dependente de oxigênio, foi admitido no pronto-socorro com quadro de dor abdominal lancinante. A angiotomografia de abdome revelou a presença de grande aneurisma aórtico com comprometimento das artérias viscerais. Devido ao elevado risco cirúrgico, foi proposto o tratamento endovascular pela técnica de chaminé para a preservação dos vasos viscerais. Essa técnica mostra-se promissora por permitir o reparo endovascular desses aneurismas, seja em casos eletivos, em situações de urgência/emergência ou de resgate de uma artéria visceral acidentalmente encoberta por uma endoprótese aórtica.

An elderly patient with non-dialysis renal failure and oxygendependent chronic obstructive pulmonary disease was admitted to the emergency room with lancinating abdominal pain. Angiotomography of the abdomen revealed the presence of a large aortic aneurysm with involvement of visceral arteries. Due to the high surgical risk, endovascular repair was proposed, using the chimney graft technique for the preservation of the visceral vessels. This technique is promising because it enables endovascular repair of aneurysms, be it in elective cases, emergencies, or rescue of a visceral artery accidentally covered by an aortic stent graft.

Long-term results of permanent memotherm urethral stent in the treatment of recurrent bulbar urethral strictures

Purpose: To evaluate the long term outcomes of permanent Memotherm urethral stent in the treatment of recurrent bulbar urethral stricture. Materials and Methods: Twenty patients who underwent permanent Memotherm urethral stent implantation due to recurrent bulbar urethral stricture following previous unsuccessful surgical procedure from 1996 to 2002 were included in the study. Long-term outcomes of the patients were evaluated. Results: The overall success rate was 87.5% at the end of the tenth year. There was discomfort in implantation area in eight patients about 1 month following the procedure. These patients were treated with alpha-blocker and anti-inflammatory drugs. Stone formation was observed at the urethral stent implantation area in two patients. Post-void dripping has been observed in 15 patients up to the postoperative 3rd month. Stress urinary incontinence was observed in a patient with a 1-year follow-up. Partial stent migration was observed in two patients. None of the patients experienced pain during erection. Conclusion: Memotherm urethral stent is a minimal invasive surgical procedure which can be safely and effectively used in patients with recurrent urethral stricture. .

Implante de válvulas endobronquiais unidirecionais para o tratamento do enfisema pulmonar heterogêneo / Implantation of unidirectional endobronchial valves for the treatment of heterogeneous pulmonary emphysema

CONTEXTO: O enfisema, que se encaixa dentro do espectro de Doenças Pulmonares Obstrutivas Crônicas (DPOC), é caracterizado pela destruição do tecido alveolar e pela fragilidade estrutural provocada por elastólise e obstrução de vias aéreas, por sua vez provocada por perda de sustentação ou por alterações inflamatórias nas paredes das vias aéreas. A limitação de fluxo aéreo é progressiva e está associada a uma resposta inflamatória anormal do pulmão a partículas ou gases nocivos, dentre os quais 75% são provenientes do tabagismo. A lesão nos tecidos pulmonares causa uma diminuição de elasticidade, hiperinsuflação progressiva e aprisionamento de ar, sendo essas as consequências mais devastadoras do enfisema. Em consequência disso, ocorre comprometimento da capacidade de exercício por conta do aumento do tamanho do pulmão, que atinge um volume que impede sua expansão e funcionamento adequados na caixa torácica, e perda de qualidade de vida. Do ponto de vista terapêutico, os medicamentos broncodilatadores apresentam resposta limitada nessa doença e, tendo em vista que o maior objetivo do tratamento do enfisema é reduzir o ar aprisionado, várias abordagens terapêuticas invasivas ganharam destaque na investigação científica. No âmbito do Sistema Único de Saúde (SUS), existem três formas de tratamento para pacientes com enfisema pulmonar: tratamento clínico, tratamento cirúrgico e o transplante pulmonar. A Cirurgia Redutora do Volume Pulmonar (CRVP) é o procedimento de escolha a ser comparado ao método proposto pelo demandante, ou seja, o implante broncoscópico de válvulas endobronquiais unidirecionais. TRATAMENTO RECOMENDADO: Os objetivos terapêuticos em pacientes com DPOC são direcionados a aliviar parte da obstrução das vias aéreas que é reversível; controlar a tosse e a produção de secreções; eliminar e evitar as infecções das vias aéreas; aumentar a tolerância ao exercício ao máximo permitido pelo nível individual de déficit fisiológico; controlar as complicações médicas, como hipoxemia arterial e problema cardiovasculares; evitar o fumo e outros irritantes das vias aéreas e aliviar a ansiedade e a depressão. As modalidades de tratamento para DPOC consistem em terapia com broncodilatadores, corticóides inalatórios, antibióticos, oxigenoterapia, ventilação mecânica e intervenção cirúrgica. A cessação do tabagismo é o mais simples e efetivo modo para redução do risco de DPOC e interrupção de sua progressão. Quando o tratamento medicamentoso máximo não é suficiente para compensar o quadro de doença brônquica a que costuma estar associado, a alternativa médica que resta é o treinamento físico para melhorar a eficiência dos músculos respiratórios e acessórios, reduzir o consumo de oxigênio e aumentar a tolerância à dispneia (conhecida como reabilitação respiratória). Enquanto os pacientes com predominância do componente de bronquite crônica são passíveis de um maior número de opções terapêuticas, aqueles com predomínio de enfisema têm, na reabilitação respiratória e nos cuidados nutricionais, os maiores recursos de manejo clínico. Há muito se busca alternativas para o tratamento de pacientes com enfisema, em função dessas limitações ao tratamento clínico. A TECNOLOGIA: A tecnologia aqui proposta para o tratamento do enfisema grave, forma heterogênea, possui registro n° 8015901001 na Agência Nacional de Vigilância Sanitária (ANVISA) desde 2008. Consiste no implante permanente, via broncoscópica, de válvulas unidirecionais. Essas válvulas são projetadas para controlar o fluxo de ar a fim de melhorar a função pulmonar em pacientes com enfisema heterogêneo e/ou reduzir escapes de ar. O uso das válvulas endobronquiais, usualmente, retira os pacientes com grave disfunção pulmonar do suporte respiratório (entubação endotraqueal/ assistência ventilatória), melhorando de forma muito significativa sua qualidade de vida. Esses são os doentes que não apresentam condições cirúrgicas para o transplante pulmonar. Por outro lado, permite condições de espera para aqueles doentes que aguardam o transplante pulmonar, obviamente, quando indicado. CONSIDERAÇÕES FINAIS: A evidência atualmente disponível sobre eficácia, efetividade e segurança da válvula endobronquial para tratamento do enfisema pulmonar heterogêneo foi baseada em oito estudos observacionais (série de casos) e dois ensaios clínicos randomizados, com nível de evidência baixo ou muito baixo e grau de recomendação fraco em favor da tecnologia (GRADE). Nesse sentido, os resultados apresentados pelos estudos indicam que o implante de válvulas endobronquiais é seguro em curto prazo, apresenta melhora de discreta a moderada na função pulmonar e na qualidade de vida. No entanto, essas evidências incluem dados de pacientes que tiveram e daqueles que não tiveram avaliação de ventilação colateral, fato que especialistas aconselham como fundamental para a seleção do tratamento atualmente. As evidências de segurança em curto prazo são adequadas, mas evidências de segurança em longo prazo ainda são insuficientes. DELIBERAÇÃO FINAL: Os membros da CONITEC, presentes na 26ª reunião da CONITEC, realizada no dia 09/06/2014, deliberaram, por unanimidade, por não recomendar a incorporação da válvula endobronquial ZEPHYR unidirecional para o tratamento do enfisema pulmonar heterogêneo associado à ventilação colateral reduzida. DECISÃO: PORTARIA Nº 33, de 26 de setembro de 2014 - Torna pública a decisão de não incorporar o implante de válvulas endobronquiais unidirecionais para o tratamento do enfisema pulmonar heterogêneo no âmbito do Sistema Único de Saúde ­ SUS.