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The intra-aortic balloon pump (IABP) is a mechanical device that increases myocardial oxygen perfusion and indirectly increases cardiac output through afterload reduction. Since its inception, the IABP has been a mainstay of cardiac support devices, utilized as a temporizing measure in patients with or prone to developing cardiogenic shock that are awaiting definitive treatment. Systolic anterior motion (SAM) of the mitral valve is a well-described phenomenon that can precipitate hemodynamic collapse by obstructing the left ventricular outflow tract in a subset of patients with cardiac pathology, most notably hypertrophic obstructive cardiomyopathy (HOCM). This report describes the case and anesthetic management of a patient who had an IABP placed for support and later developed SAM and hemodynamic compromise after induction of general anesthesia during a coronary artery bypass surgery.
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CONTEXT: Stigmatizing language or non-person-centered language (non-PCL) has been shown to impact patients negatively, especially in the case of obesity. This has led many associations, such as the American Medical Association (AMA) and the International Committee of Medical Journal Editors (ICMJE), to enact guidelines prohibiting the use of stigmatizing language in medical research. In 2018, the AMA adopted person-centered language (PCL) guidelines, including a specific obesity amendment to which all researchers should adhere. However, little research has been conducted to determine if these guidelines are being followed. OBJECTIVES: Our primary objective was to determine if PCL guidelines specific to obesity have been properly followed in the sports medicine journals that are interacted with most frequently. METHODS: We searched within PubMed for obesity-related articles between 2019 and 2022 published in the top 10 most-interacted sports medicine journals based on Google Metrics data. A predetermined list of stigmatizing and non-PCL terms/language was searched within each article. RESULTS: A total of 198 articles were sampled, of which 58.6â¯% were found to be not compliant with PCL guidelines. The most common non-PCL terms were "obese" utilized in 49.5â¯% of articles, followed by "overweight" as the next most common stigmatizing term at 40.4â¯%. Stigmatizing labels such as "heavy, heavier, heaviness," "fat" as an adjective, and "morbid" appeared in articles but at a lower rate. CONCLUSIONS: Our study shows that there is a severe lack of adherence to PCL guidelines in the most-interacted sports medicine journals. Negative associations between stigmatizing language and individuals with obesity will only persist if a greater effort is not made to change this. All journals, including the most prestigious ones, should adopt and execute PCL guidelines to prevent the spread of demeaning language in the medical community.
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Idioma , Obesidade , Publicações Periódicas como Assunto , Medicina Esportiva , Humanos , Obesidade/terapia , Fidelidade a Diretrizes , Estigma SocialRESUMO
Nitric oxide (NO) is produced by a family of isoenzymes, nitric oxide synthases (NOSs), which all utilize L-arginine as substrate. The production of NO in the lung and airways can play a number of roles during lung development, regulates airway and vascular smooth muscle tone, and is involved in inflammatory processes and host defense. Altered L-arginine/NO homeostasis, due to the accumulation of endogenous NOS inhibitors and competition for substrate with the arginase enzymes, has been found to play a role in various conditions affecting the lung and in pulmonary diseases, such as asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis (CF), pulmonary hypertension, and bronchopulmonary dysplasia. Different therapeutic strategies to increase L-arginine levels or bioavailability are currently being explored in pre-clinical and clinical studies. These include supplementation of L-arginine or L-citrulline and inhibition of arginase.
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BACKGROUND: We sought to compare outcomes between inpatient and outpatient buccal mucosal graft (BMG) urethroplasty among a large tertiary referral center series. METHODS: A retrospective review of consecutive patients who underwent BMG urethroplasty between 2007 and 2018 was performed, including only first stage and one stage graft procedures. Patients were divided into inpatient and outpatient groups. Demographic and outcome data were collected and analyzed, with success defined as no need for further endoscopic or open reoperative management. RESULTS: Of 143 patients undergoing BMG urethroplasty during the study period, 87 cases (60.8%) were performed on an inpatient basis, and 56 (39.2%) on an outpatient basis. Patient characteristics such as age, BMI, prior endoscopic procedures and co-morbid factors were similar between inpatient and outpatient groups. Perioperative characteristics such as estimated blood loss were also similar between groups, but the inpatient cohort had a longer operative time (157.6 vs. 123.1 min, P<0.0001). Operative success was comparable in the two groups (74.7% inpatient vs. 76.8% outpatient, P=0.7) as were rates of complications (29.9% inpatient vs. 26.8% outpatient, P=0.07). CONCLUSIONS: BMG urethroplasty can be safely performed in an ambulatory setting without increased complications or compromised outcomes.
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Relebactam, a potent ß-lactamase inhibitor, in combination with Primaxin is an FDA-approved (Recarbrio) treatment for serious and antibiotic-resistant bacterial infections. An efficient synthesis of key chiral piperidine intermediate 1 suitable for large-scale preparation of relebactam is described. The key steps include a unique highly diastereoselective FeCl3·6H2O/NaBH4 reduction of a chiral oxime ether and chemoselective amidation of the resulting unprotected pipecolic acid. Nuclear magnetic resonance studies and density functional theory calculations were carried out on the substrate-Fe(III) complexes, which shed light on diastereoselective reduction.
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Compostos Azabicíclicos/síntese química , Compostos Azabicíclicos/farmacologia , Boroidretos/química , Cloretos/química , Compostos Férricos/química , Oximas/química , Inibidores de beta-Lactamases/síntese química , Inibidores de beta-Lactamases/farmacologia , Compostos Azabicíclicos/química , Éteres/química , Estrutura Molecular , Oxirredução , Análise Espectral/métodos , Estereoisomerismo , Água/químicaRESUMO
OBJECTIVE: To compare long-term outcomes and erosion rates of 3.5-cm artificial urinary sphincter (AUS) cuffs vs larger cuffs amongst men with stress urinary incontinence (SUI), with and without a history of pelvic radiotherapy (RT). PATIENTS AND METHODS: We reviewed the records of all men who underwent AUS placement by a single surgeon between September 2009 and June 2017 at our tertiary urban medical centre. A uniform perineal approach was used to ensure cuff placement around the most proximal corpus spongiosum after precise spongiosal measurement. Patients were stratified by cuff size and RT status, and patient demographics and surgical outcomes were analysed. Cases of AUS revision in which a new cuff was not placed were excluded. Success was defined as patient-reported pad use of ≤1 pad/day. RESULTS: Amongst 410 cases included in the analysis, the 3.5-cm cuff was used in 166 (40.5%), whilst 244 (59.5%) received larger cuffs (≥4.0 cm). Over a median follow-up of 50 months, there was AUS cuff erosion in 44 patients at a rate nearly identical in the 3.5-cm cuff (10.8%, 18/166) and the ≥4-cm cuff groups (10.7%, 26/244, P = 0.7). On multivariate logistic regression, clinical factors associated with AUS cuff erosion included a history of pelvic RT, prior AUS cuff erosion, prior urethroplasty, and a history of inflatable penile prosthesis (IPP) placement. Patient demographics were similar between the cuff-size groups; including age, body mass index, comorbidities, smoking history, RT history, prior AUS, and prior IPP placement. Continence rates were high amongst all AUS patients, with similar success in both groups (82% for 3.5-cm cuff, 90% for ≥4-cm cuff, P = 0.1). CONCLUSIONS: After 8 years of experience and extended follow-up, the outcomes of the 3.5-cm AUS cuff appear to be similar to ≥4-cm cuffs for effectiveness and rates of urethral erosion. RT patients have a higher risk of cuff erosion regardless of cuff size.
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Desenho de Prótese/efeitos adversos , Doenças Uretrais/etiologia , Incontinência Urinária por Estresse/cirurgia , Esfíncter Urinário Artificial/efeitos adversos , Idoso , Seguimentos , Humanos , Tampões Absorventes para a Incontinência Urinária , Masculino , Estudos Retrospectivos , Fatores de RiscoRESUMO
OBJECTIVES: To present a multi-institutional experience with functional and patient-reported outcomes among men undergoing excision and primary anastomosis (EPA) urethroplasty for pendulous urethral strictures. METHODS: We describe the technique and present our experience with EPA for focal penile strictures. Patients undergoing urethroplasty (2004-2017) at 2 tertiary referral centers were reviewed, of whom 14 (0.7%) underwent EPA of radiographically confirmed pendulous urethral strictures. Validated questionnaires were utilized to evaluate overall improvement (Patient Global Impression of Improvement), urinary bother (International Prostate Symptom Score), and sexual function (International Index of Erectile Function-5). Treatment success was defined as urethral patency without need for subsequent reconstruction. RESULTS: Among 14 men undergoing penile EPA, 13/14 (93%) had durable treatment success over a median follow-up of 43 months. No patient reported penile curvature postoperatively. Stricture etiology in most cases was posttraumatic (12/14), of which 4 had a history of urethral disruption secondary to penile fracture and 8 iatrogenic trauma. Median age was 51 years (IQR 30-60) and stricture length 1.0 cm (IQR 1.0-1.4). Erectile function was normal in 8/14 patients preoperatively, and postoperative median International Index of Erectile Function was 21. Most men reported significant global improvement in condition (median Patient Global Impression of Improvement 2, IQR 1-3) and most had only mild urinary bother (median International Prostate Symptom Score 4, quality of life 1). The single treatment failure had a history of hypospadias with multiple prior urethral procedures. CONCLUSION: For men with short strictures of the pendulous urethra, EPA has a high success rate, without adverse sequelae such as erectile function or penile curvature.
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Uretra/cirurgia , Estreitamento Uretral/cirurgia , Adulto , Anastomose Cirúrgica , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Urológicos Masculinos/métodosRESUMO
INTRODUCTION: Penile plication (PP) for Peyronie's disease (PD) is an established treatment option for mild to moderate curvature, but scant data exist regarding its utility in severe deformities. AIM: To evaluate long-term outcomes among men undergoing PP for PD, comparing severe to mild/moderate penile deformities. METHODS: We performed a retrospective review of patients who underwent PP for PD between 2009 and 2017. All patients underwent multiple parallel tunical plication without degloving. Severe PD was defined as either curvature ≥60 degrees or biplanar curvature ≥35 degrees. Patient demographics and surgical outcomes were analyzed. A modified PD Questionnaire and International Index of Erectile Function (IIEF)-5 were administered by telephone. MAIN OUTCOME MEASURE: Long-term patient-reported outcomes were evaluated from a modified survey incorporating the PD Questionnaire and IIEF-5. RESULTS: Of 327 PP patients, 102 (31%) responded to the telephone survey at a median 59.5 months (interquartile range 28.3-84) since surgery. Patients were equally distributed into severe (n = 51) and mild/moderate (n = 51) groups. Despite a greater mean degree of curvature in severe compared to mild/moderate patients (71.6 degrees vs 37.7 degrees, respectively, P < .001), correction of penile curvature was achieved in 91% of patients, with a mean change of 60.7 degrees in severe cases compared to 31.4 degrees in mild/moderate cases (P < .001). Equal numbers of patients in severe and mild/moderate groups reported improvement of penile curvature (74.5% vs 74.5%, P = 1.0) and sexual function (51.0% vs 49.0%, P = .84). PD Questionnaire metrics were likewise similar between severe and mild/moderate patients (P > .1), as were rates of subjective penile shortening (62.7% vs 62.7%, P = 1.0) and IIEF-5, both pre-operatively (19.5 vs 19.7, P = .9) and post-operatively (19.4 vs 17.6, respectively, P = .15). On multivariate logistic regression, worsening sexual function was significantly associated with increased age (odds ratio 1.07, P = .01) and pre-operative IIEF (odds ratio 1.14, P = .02). CLINICAL IMPLICATIONS: PP should be considered in PD patients with severe deformities, as outcomes are favorable and comparable to those with milder curvature. STRENGTH & LIMITATIONS: This is a novel study evaluating long-term patient-reported outcomes after PP, comparing patients with severe deformity to those with mild/moderate curvature. The study was limited by retrospective design, relatively low survey response rate (31%), and lack of validated post-operative PD questionnaire. CONCLUSION: Long-term patient-reported outcomes of PP for severe PD deformities are comparable to mild/moderate cases, supporting broader application of PP beyond milder deformities. Reddy RS, McKibben MJ, Fuchs JS, et al. Plication for Severe Peyronie's Deformities Has Similar Long-Term Outcomes to Milder Cases. J Sex Med 2018;15:1498-1505.
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Induração Peniana/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Induração Peniana/fisiopatologia , Pênis/cirurgia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Índice de Gravidade de Doença , Fatores Socioeconômicos , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversosRESUMO
OBJECTIVE: To evaluate procedural trends and outcomes for reconstruction of complex strictures at our tertiary center over the last decade. METHODS: We retrospectively reviewed complex urethral reconstruction comparing 3 techniques: (1) buccal mucosal graft (BMG), (2) penile skin flap, or (3) perineal urethrostomy (PU) at our center (2007-2017) with ≥6 months follow-up. Strictures amenable to anastomotic repair were excluded. Success was defined as no need for further operative management. RESULTS: Among 1129 strictures cases, 403 complex strictures were identified for analysis (median length 4.5 cm). Median age was 53.2 years (standard deviation ± 14.9). Reconstruction was most commonly performed using BMG (61.3%), followed by penile skin flap (21.6%) and PU (19.1%). PU use has increased steadily over the past decade, rising from 4.3% of case volume in 2008 to 38.7% in 2017 (Pâ¯=â¯.01). Over time, the proportion of reconstruction using BMG has remained stable, while penile skin flaps are now less commonly utilized. Over a median follow-up of 50.7 months, 16.9% (68/403) patients failed at a median of 13.9 months. Success rates were higher following PU (94.8%) compared to BMG and skin flaps (78.5% and 78.2%, respectively) (P = .003) despite PU patients being older (median age 62.6 years), having longer strictures (median 5.0 cm) and more commonly having lichen sclerosus (LS) (22.1%). CONCLUSION: Over a decade of a urethral reconstructive practice, PU has increasingly become preferred for older patients with long strictures and adverse etiology. BMG urethroplasty rates remain stable, while penile skin flap use is decreasing. Success rates of PU for these complex strictures are markedly higher than those of grafts and flaps.
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Períneo/cirurgia , Procedimentos de Cirurgia Plástica/tendências , Estomas Cirúrgicos/tendências , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/tendências , Adulto , Fatores Etários , Idoso , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Mucosa Bucal/transplante , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Retalhos Cirúrgicos/transplante , Resultado do Tratamento , Uretra/patologia , Procedimentos Cirúrgicos Urológicos Masculinos/métodosRESUMO
OBJECTIVE: To evaluate the duration and severity of male incontinence symptoms before presentation for initial anti-incontinence surgery (AIS) in a large tertiary subspecialty practice. Although male stress urinary incontinence (SUI) is known to profoundly compromise quality of life, many men do not undergo AIS in a timely manner. MATERIALS AND METHODS: We retrospectively reviewed our male patients with SUI (2007-2017) and assessed time from SUI onset to initial AIS across various demographics comparing male sling and artificial urinary sphincter (AUS). Reoperative cases were excluded. RESULTS: Among 786 cases, 572 men undergoing initial AIS met the inclusion criteria (mean age 69 years), with 57.7% (330/572) undergoing AUS and 42.3% (242/572) undergoing sling. The median duration of incontinence before AIS was 32 months. AUS patients pursued surgical intervention earlier than men undergoing sling (median time 28.8 months vs 34.7 months, P = .03). Most patients deferred AIS for more than 2 years (69.8% of sling patients and 58.5% of AUS patients), and 32.3% demonstrated an extended delay of more than 5 years. Increasing age correlated with delays in both AUS (Spearman rho = 0.20, P = .0001) and sling (Spearman rho = 0.34, P <.0001). On multivariate analysis, age was significantly associated with duration of incontinence (P <.0001). Octogenarians had a notably higher median delay of 87.4 months. CONCLUSION: Although the median duration of SUI before the initial AIS is 2.7 years, one-third of men experience a delay of more than 5 years. AUS present for AIS 6 months less on average relative to sling patients. Older men demonstrate a longer duration of SUI before seeking surgical care.
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Slings Suburetrais , Tempo para o Tratamento/estatística & dados numéricos , Incontinência Urinária por Estresse/cirurgia , Esfíncter Urinário Artificial , Idoso , Humanos , Masculino , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos Masculinos/métodosRESUMO
OBJECTIVES: To report the prevalence of low serum testosterone (LST) in men undergoing artificial urinary sphincter (AUS) placement at a single high-volume institution. METHODS: We retrospectively reviewed all men undergoing AUS procedures by a single surgeon from January 2015 to January 2018 to identify men with pretreatment total serum testosterone levels. LST was defined as less than 280 ng/dL. Patients with only posttreatment testosterone levels were excluded. Demographic characteristics and clinical outcomes were compared between men with and without LST. RESULTS: Among 113 patients who underwent AUS with pretreatment serum testosterone levels drawn an average of 2.2 months before AUS surgery, 45.1% (51 of 113) met criteria for LST, including 18 patients on androgen deprivation therapy. The rate of primary LST was 34.7% (33 of 95). The median total serum testosterone level among men with LST was 118 ng/dL (interquartile range 6-211), and 413 mg/dL (interquartile range 333-550) in the normal serum testosterone group. There were no differences in patient age, history of radiation, erectile dysfunction, or other comorbidities between the groups. Body mass index was higher in the LST group compared to normal serum testosterone (30 vs 27 kg/m2, P = .001). Cuff size and rates of transcorporal cuff placement were similar between groups. CONCLUSION: Nearly one-half of men with stress urinary incontinence undergoing AUS placement present with LST. While AUS cuff erosion appears to be more common in men with LST, further study is needed to determine if treating LST will reduce cuff erosion rates.
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Testosterona/sangue , Esfíncter Urinário Artificial , Idoso , Humanos , Masculino , Estudos RetrospectivosRESUMO
AIMS: To develop a decision aid in predicting sling success, incorporating the Male Stress Incontinence Grading Scale (MSIGS) into existing treatment algorithms. METHODS: We reviewed men undergoing first-time transobturator sling for stress urinary incontinence (SUI) from 2007 to 2016 at our institution. Patient demographics, reported pads per day (PPD), and Standing Cough Test (SCT) results graded 0-4, according to MSIGS, were assessed. Treatment failure was defined as subsequent need for >1 PPD or further procedures. Parameters associated with failure were included in multivariable logistic models, compared by area under the receiver-operating characteristic curves. A nomogram was generated from the model with greatest AUC and internally validated. RESULTS: Overall 203 men (median age 67 years, IQR 63-72) were evaluated with median follow-up of 45 months (IQR 11-75 months). A total of 185 men (91%) were status-post radical prostatectomy and 29 (14%) had pelvic radiation history. Median PPD and SCT grade were both two. Eighty men (39%) failed treatment (use of ≥1 PPD or subsequent anti-incontinence procedures) at a median of 9 months. History of radiation (P = 0.03), increasing MSIGS (P < 0.0001) and increasing preoperative PPD (P < 0.0001) were associated with failure on univariate analysis. In a multivariable model with AUC 0.81, MSIGS, and PPD remained associated (P = 0.002 and <0.0001 respectively, and radiation history P = 0.06), and was superior to models incorporating PPD and radiation alone (AUC 0.77, P = 0.02), PPD alone (AUC 0.76, P = 0.02), and a cutpoint of >2 PPD alone (AUC 0.71, P = 0.0001). CONCLUSIONS: MSIGS adds prognostic value to PPD in assessing success of transobturator sling for treatment of SUI.
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Tosse , Slings Suburetrais , Incontinência Urinária por Estresse/cirurgia , Idoso , Área Sob a Curva , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Nomogramas , Avaliação de Resultados em Cuidados de Saúde , Complicações Pós-Operatórias/cirurgia , Prostatectomia , Curva ROC , Radioterapia , Ressecção Transuretral da Próstata , Falha de Tratamento , Resultado do Tratamento , Incontinência Urinária por Estresse/fisiopatologiaRESUMO
OBJECTIVE: To review our experience with the modified York Mason (MYM) procedure in the treatment of rectourinary fistulas (RUFs) and to assess fecal continence using patient-reported measures. MATERIALS AND METHODS: A retrospective review was performed of patients who underwent MYM repair of nonradiated RUF with gluteal free fat graft from 2008 to 2016 at a single institution. Success was defined as resolution of the fistula without need for further surgery. The Cleveland Clinic-Florida Wexner Fecal Incontinence Score (CCFFIS) and the Patient Global Impression of Improvement (PGI-I) surveys were administered by phone. RESULTS: Of 17 patients who underwent MYM repair with a mean age of 61.8 years old, the most common fistula etiologies were prostatectomy in 11 patients (65%), cryoablation in 2 patients (12%), and transanal tumor excision (12%). Three patients (18%) failed prior perineal repairs. The mean fistula size was 10.1 mm (range 2-25), the median operative time was 231 minutes (range 151-365), and the median length of stay was 2.0 days (range 1-13). At the median follow-up of 39.4 months, 16 of the 17 patients (94%) had successful primary closures. The condition of the 10 patients who responded to the phone survey was "much better" (median PGI-I score 2), with 89.5% mean improvement. The mean CCFFIS was 1.4 (range 0-5) on a scale of 0 (total continence) to 20 (complete incontinence). Two patients (20%) reported rare (<1 per month) fecal incontinence, and 2/10 (20%) reported frequent flatal incontinence, but none reported significant lifestyle change or sought further treatment for bowel symptoms. CONCLUSION: The MYM technique has a high success rate in the treatment of nonradiated RUF with negligible impact on fecal continence.
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Complicações Pós-Operatórias/cirurgia , Doenças Prostáticas/cirurgia , Fístula Retal/cirurgia , Fístula da Bexiga Urinária/cirurgia , Fístula Urinária/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Canal Anal , Defecação , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Medidas de Resultados Relatados pelo Paciente , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos/métodos , Adulto JovemRESUMO
BACKGROUND: For prolonged ischemic priapism, outcomes after distal shunt are poor, with only 30% success for priapic episodes lasting longer than 48 hours. AIM: To present a novel, glans-sparing approach of corporal decompression through a penoscrotal approach for cases of refractory ischemic priapism (RIP) after failed distal shunt procedures. METHODS: We describe the technique and present our initial experience with penoscrotal decompression (PSD) for treatment of RIP after failed distal shunt. We compared outcomes of patients with RIP undergoing surgical management using PSD or malleable penile prosthesis (MPP) placement after failed distal penile shunt procedures (2008-2017). OUTCOMES: Our initial experience showed favorable outcomes with PSD compared with early MPP placement in patients with RIP whose distal shunt failed. RESULTS: Of 14 patients with RIP undergoing surgical management after failed distal penile shunt procedures, all patients presented after a prolonged duration of priapism (median = 61 hours) after which the priapism was refractory to multiple prior treatments (median = 3, range = 1-75) including at least 1 distal shunt. MPP was inserted in 8 patients (57.1%), whereas the most recent 6 patients (42.9%) underwent PSD. All patients with PSD (6 of 6, 100%) were successfully treated with corporal decompression without additional intervention and noted immediate relief of pain postoperatively. In contrast, 37.5% of patients (3 of 8) undergoing MPP after failed distal shunt procedures required a total of 8 revision surgeries during a median follow-up of 41.5 months. The most common indications for revision surgery after MPP placement included distal (4 of 8, 50%) and impending lateral (2 of 8, 25%) extrusion. CLINICAL IMPLICATIONS: PSD is a simple, effective technique in the management of RIP after failed distal shunt procedures with fewer complications than MPP placement. STRENGTHS AND LIMITATIONS: Although PSD is effective in the management of RIP after failed distal shunt procedures, long-term assessment of erectile function and ease of future penile prosthetic implantation is needed. CONCLUSION: Corporal decompression resolves RIP through a glans-sparing approach and avoids the high complication rate of prosthetic insertion after failed distal shunt procedures. Fuchs JS, Shakir N, McKibben MJ, et al. Penoscrotal Decompression-Promising New Treatment Paradigm for Refractory Ischemic Priapism. J Sex Med 2018;15:797-802.
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Priapismo/cirurgia , Adolescente , Adulto , Criança , Humanos , Masculino , Pessoa de Meia-Idade , Pênis/cirurgia , Reoperação , Adulto JovemRESUMO
Mutant forms of p53 protein often possess protumorigenic functions, conferring increased survival and migration to tumor cells via their "gain-of-function" activity. Whether and how a common polymorphism in TP53 at amino acid 72 (Pro72Arg; referred to here as P72 and R72) impacts this gain of function has not been determined. We show that mutant p53 enhances migration and metastasis of tumors through the ability to bind and regulate PGC-1α and that this regulation is markedly impacted by the codon 72 polymorphism. Tumor cells with the R72 variant of mutant p53 show increased PGC-1α function along with greatly increased mitochondrial function and metastatic capability. Breast cancers containing mutant p53 and the R72 variant show poorer prognosis compared with P72. The combined results reveal PGC-1α as a novel "gain-of-function" partner of mutant p53 and indicate that the codon 72 polymorphism influences the impact of mutant p53 on metabolism and metastasis.
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Genes p53 , Mutação , Neoplasias/metabolismo , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Animais , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Neoplasias da Mama/mortalidade , Linhagem Celular Tumoral , Movimento Celular , Feminino , Fator 4 Nuclear de Hepatócito/metabolismo , Humanos , Masculino , Camundongos , Invasividade Neoplásica , Metástase Neoplásica , Neoplasias/genética , Neoplasias/patologia , Fosforilação Oxidativa , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/antagonistas & inibidoresRESUMO
INTRODUCTION: A preoperative negative urine culture is generally advised before implantation of urologic prosthetics to prevent device infection. However, a review of the medical literature indicates sparse evidence to support this practice. AIM: To describe outcomes for patients undergoing prosthetic implantation without preoperative urine cultures. METHODS: The cases of men undergoing artificial urinary sphincter (AUS) and/or inflatable penile prosthesis (IPP) placement at a tertiary care center from 2007 through 2015 were reviewed. Of 713 devices implanted in 681 patients (337 AUSs in 314 patients, 376 IPPs in 367), 259 cases without preoperative urine cultures were analyzed (41%). Patients received standard perioperative antibiotics. MAIN OUTCOME MEASURES: Device infection was diagnosed clinically. Average follow-up was 15 months. RESULTS: Device infection occurred in 4 of 259 patients (1.5%) with no difference noted in infection rate between device groups (AUS = 3 of 174 [2%]; IPP = 1 of 85 [1%]; P = .99); this rate appears to be consistent with the infection rate of numerous other published prosthetic series. Common skin organisms were implicated as the infectious agents in half the infected devices. Only one patient (0.4%) developed an Escherichia coli infection. CONCLUSION: This study suggests that prosthetic urologic surgery can be safely performed without preoperative urine cultures. Kavoussi NL, Viers BR, Pagilara TL, et al. Are Urine Cultures Necessary Prior to Urologic Prosthetic Surgery? Sex Med Rev 2018;6:157-161.
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Prótese de Pênis , Cuidados Pré-Operatórios , Infecções Relacionadas à Prótese/prevenção & controle , Urinálise , Esfíncter Urinário Artificial , Procedimentos Cirúrgicos Urológicos/métodos , Medicina Baseada em Evidências , Humanos , Masculino , Implante Peniano , Prótese de Pênis/microbiologia , Procedimentos Desnecessários , Esfíncter Urinário Artificial/microbiologia , Procedimentos Cirúrgicos Urológicos/efeitos adversosRESUMO
PURPOSE: Prior to urethral reconstruction many patients with stricture undergo a variable period during which endoscopic treatments are performed for recurrent obstructive symptoms. We evaluated the association among urethroplasty delay, endoscopic treatments and subsequent reconstructive outcomes. MATERIALS AND METHODS: We reviewed the records of men who underwent primary bulbar urethroplasty from 2007 to 2014. Those with prior urethroplasty, penile and/or membranous strictures and incomplete data were excluded from analysis. Men were stratified by a urethroplasty delay of less than 5, 5 to 10 or greater than 10 years from diagnosis. RESULTS: A total of 278 primary bulbar urethroplasty cases with complete data were evaluated. Median time between stricture diagnosis and reconstruction was 5 years (IQR 2-10). Patients underwent an average ± SD of 0.9 ± 2.4 endoscopic procedures per year of delay. Relative to less than 5 and 5 to 10 years a delay of greater than 10 years was associated with more endoscopic treatments (median 1 vs 2 vs 5), repeat self-dilations (13% vs 14% vs 34%), strictures longer than 2 cm (40% vs 39% vs 56%) and complex reconstructive techniques (17% vs 17% vs 34%). An increasing number of endoscopic treatments was independently associated with strictures longer than 2 cm (OR 1.06, p = 0.003), which had worse 24-month stricture-free survival than shorter strictures (83% vs 96%, p = 0.0003). Each consecutive direct vision internal urethrotomy was independently associated with the risk of urethroplasty failure (HR 1.19, p = 0.02). CONCLUSIONS: Urethroplasty delay is common and often associated with symptomatic events managed by repeat urethral manipulations. Endoscopic treatments appear to lengthen strictures and increase the complexity of repair.
Assuntos
Procedimentos de Cirurgia Plástica/métodos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adulto , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Reoperação/estatística & dados numéricos , Fatores de Tempo , Resultado do Tratamento , Uretra/patologia , Estreitamento Uretral/patologia , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversosRESUMO
OBJECTIVE: To characterize the risk of delayed infectious complications from retained pressure-regulating balloons (PRBs) after artificial urinary sphincter (AUS) cuff erosion. METHODS: From our database of 530 AUS cases between 2007 and 2016, we identified 40 total AUS cuff erosions. Twenty-four (60%) presented without evidence of gross device infection and underwent explant of cuff and pump without removal of the PRB. Space of Retzius (SoR) and high submuscular (HSM) balloon locations were analyzed to assess for ease of removal. Presenting clinical features and retained balloon-related outcomes are reported. RESULTS: Of the 24 AUS cuff erosions with retained balloons, 6 (25%) men subsequently required PRB removal for infection during the median follow-up of 36 months (interquartile range 29-53). The median time to balloon infection after AUS erosion surgery was 4 months (interquartile range 4-16). Infection risk was reduced in those without concurrent inflatable penile prosthesis (20%) and in those who underwent "drain and retain" of the PRB (13%). The most common presenting clinical symptoms with retained PRB infection were pain and erythema near the site of the PRB (83%). No patient developed sepsis-related complications. The location of the PRB in this subcohort included 2 SoR and 4 HSM placements. The median operative time for balloon removal in the SoR was 3.5 times greater than that for HSM PRBs (133 minutes vs 38 minutes). CONCLUSION: With extended follow-up, three-quarters of the men with retained PRBs after AUS cuff erosion experienced no infectious complications. Removal of infected SoR PRBs was associated with greater operative times and surgical complexity relative to HSM PRBs.
Assuntos
Remoção de Dispositivo , Disfunção Erétil/cirurgia , Implante Peniano/efeitos adversos , Falha de Prótese , Incontinência Urinária por Estresse/cirurgia , Esfíncter Urinário Artificial , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Implante Peniano/métodos , Prótese de Pênis , Implantação de Prótese/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento , Incontinência Urinária por Estresse/etiologiaRESUMO
OBJECTIVE: To report stricture characteristics, complications, and treatment outcomes among elderly men undergoing urethral reconstruction. MATERIALS AND METHODS: A retrospective review of urethroplasty cases and outcomes by a single surgeon from 2007 to 2014 was performed. Men were stratified by decade of life at time of surgery (<50, 50-59, 60-69, ≥70 years). Individuals with a history of hypospadias were excluded. RESULTS: Among 514 urethroplasty procedures, 184 (36%) were evaluated in men ≥60 years. When stratified by decade of life, elderly men were more likely to have a history of radiation therapy (0% vs 5% vs 19% vs 50%; P <.0001) and experience treatment failure (6% vs 16% vs 20% vs 26%; P <.0001) during follow-up (median 63 months). The estimated 60-month stricture recurrence-free survival decreased with increasing age at time of urethroplasty (94% vs 89% vs 78% vs 74%; P <.0001). In patients ≥60 years, success rates of anastomotic, substitution, and urethrostomy techniques were 80%, 65%, and 88%; anastomotic urethroplasty success improved after excluding those patients with prior radiation. After surgery, elderly were more likely to have voiding dysfunction and <90-day Clavien ≥3 complications requiring endoscopic intervention. On multivariable analysis, advancing age per decade beyond 50 years was independently associated with risk of urethroplasty failure-50-59 (hazard ratio [HR] 2.39; P = .02), 60-69 (HR 2.80; P = .009), and ≥70 (HR 3.43; P = .003). CONCLUSION: Urethroplasty is safe and effective in the majority of elderly men. Early reconstructive intervention with anastomotic urethroplasty or urethrostomy techniques may optimize outcomes. Voiding dysfunction and prostatic obstruction are common in this population and should be pursued as clinically indicated.
Assuntos
Procedimentos de Cirurgia Plástica/métodos , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Fatores Etários , Idoso , Envelhecimento/fisiologia , Anastomose Cirúrgica/métodos , Estudos de Coortes , Bases de Dados Factuais , Avaliação Geriátrica , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Segurança do Paciente , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/fisiopatologia , Prognóstico , Modelos de Riscos Proporcionais , Procedimentos de Cirurgia Plástica/efeitos adversos , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Resultado do Tratamento , Estreitamento Uretral/diagnósticoRESUMO
INTRODUCTION: We reviewed our 9-year experience with AdVance™ Male Sling System cases to determine clinical features associated with treatment success and to refine procedure selectivity. We hypothesized that preoperative physical demonstration of stress urinary incontinence by the standing cough test improves patient selection for male sling surgery. METHODS: Retrospective review of primary AdVance sling surgeries between 2008 and 2016 was performed. Patients without standing cough test results were excluded from study. Success was defined as 1 pad per day or less postoperatively and no further intervention. Standing cough test was performed during preoperative consultation and objectively graded using the MSIGS (Male Stress Incontinence Grading Scale). RESULTS: Of the 203 male patients who underwent sling placement 80 (39%) experienced treatment failure during a median followup of 63.5 months. From 2008 to 2016 the proportion of AdVance slings performed as a surgical treatment modality for stress urinary incontinence decreased from 66% to 13%. Increasing selectivity correlated with greater treatment success. Success was greater among men using 2 pads per day or less preoperatively (77% vs 36%, p <0.0001), having physical findings of mild stress urinary incontinence (MSIGS grade 0-2 on standing cough test, 67% vs 26%, p <0.0001) and without a history of radiation (64% vs 41%, p=0.02). In combination, men without prior radiation with mild stress urinary incontinence and favorable standing cough test were "ideal patients" with an 81% success rate. Incremental increases in pad per day use (OR 1.8 per pad, p <0.0001) and MSIGS grade (OR 1.7 per grade, p=0.005) were independently associated with treatment failure. CONCLUSIONS: Increasing selectivity has improved sling outcomes for men with stress urinary incontinence. Ideal sling candidates have not received radiation therapy, and have history and physical findings suggestive of mild stress urinary incontinence.