Therapeutic efficacy of 180-W GreenLight laser photoselective vaporization of the prostate for storage symptoms concomitant with benign prostatic obstruction and a search for outcome predictors.

PURPOSE: Benign prostatic obstruction (BPO) is the most common cause of lower urinary tract symptoms among men. GreenLight photoselective vaporization of the prostate (GL-PVP) using a 180-W Xcelerated performance system (XPS) laser is a well-established method for treating BPO-induced voiding symptoms. However, its therapeutic effects on storage symptoms remain unclear. This study aimed to analyze the storage outcomes in patients who underwent 180-W XPS GL-PVP for BPO and to identify outcome predictors. MATERIALS AND METHODS: Patients who underwent 180-W XPS GL-PVP for BPO between May 2018 and May 2021 were retrospectively reviewed. Data on clinical characteristics, prostate volume, preoperative and postoperative International Prostate Symptom Scores (IPSS), and preoperative urodynamic parameters were collected. A favorable storage outcome was defined as ≥50% reduction in the IPSS storage subscore. RESULTS: Ninety-nine male patients were included, with a mean age of 69.4 ± 9.6 years and a baseline prostatic volume of 75.9 ± 33.1 mL. The IPSS total, storage, and voiding subscores significantly decreased after GL-PVP (all p < 0.001). Seventy-two patients achieved favorable storage outcome at 6 months. Multivariate analysis revealed that detrusor underactivity was predictive of unfavorable storage outcomes (p = 0.022), while IPSS voiding-to-storage subscore ratio >1.25 and the presence of detrusor overactivity were predictive of favorable storage outcomes (p = 0.008 and 0.033, respectively). CONCLUSION: 180-W XPS GL-PVP provided excellent outcomes in both voiding and storage lower urinary tract symptoms concomitant with BPO. Preoperative IPSS and multichannel urodynamic parameters including detrusor overactivity and underactivity are valuable predictors of postoperative storage outcomes.

Occurrence of cardiovascular events in 168 cats with acute urinary tract obstruction.

Background: Cardiovascular dysfunction associated with acute kidney injury has been recently described in veterinary medicine, but limited information is available for cats with urinary tract obstruction (UTO). Objective: This retrospective study aimed to describe the type, frequency, timeline, and risk factors for cardiovascular events (CVEs) in cats treated for acute UTO. Animals and procedures: Medical records of cats admitted to the intensive care unit for either upper (ureteral: UUTO) or lower (urethral: LUTO) UTO from 2016 to 2021 were reviewed. Cardiovascular events were defined as development of arrhythmia, heart murmur or gallop sound, clinical signs consistent with fluid overload (CRFO), or decreased tissue perfusion (DTP). Results: One hundred and sixty-eight cats with UTO were recruited (56 with UUTO and 112 with LUTO). Cardiovascular events were reported in 61.9% of cases, including arrhythmia (33.6%), gallop rhythm (28.1%), heart murmur (15.3%), CRFO (14.4%), and DTP (8.6%). Potassium concentration, preexisting chronic kidney disease, and renal pelvic dilation at abdominal ultrasonography were associated with CVE occurrence in multivariate analysis. Conclusions: This study highlighted frequent CVEs in cats treated for UTO, with a potential strong impact on outcome. Therefore, cardiovascular parameters of cats with preexisting chronic kidney disease or those admitted with hyperkalemia or renal pelvic dilation should be closely monitored.

Survenue d'anomalies cardio-vasculaires chez 168 chats présentés pour obstruction du tractus urinaire. Contexte: Si des anomalies cardiovasculaires secondaires à une insuffisance rénale aigue ont été décrites récemment en médecine vétérinaire, ces données restent limitées concernant les obstructions du tractus urinaire (OTU) chez le chat. Objectif: Décrire le type, la fréquence, le délai d'apparition et les facteurs de risques d'anomalies cardio-vasculaires (ACV) chez des chats hospitalisés pour OTU aigue. Animaux et protocoles: Les dossiers médicaux des chats admis en unité de soins intensifs pour obstruction du tractus urinaire haut ( urétérales-OTUH) et bas (urétrales-OTUB) entre 2016 et 2021 ont été consultés. Les ACV retenus étaient des arythmies cardiaques, le développement de souffles cardiaques et de bruits de galop, les signes relatifs à une surcharge en fluide (SRSF) et de diminution de la perfusion tissulaire (SDPT). Résultats: Cent soixante-huit chats avec des OTU ont été recrutés (56 OTUH, 112 OTUB). Des ACV ont été observés dans 61,9 % des cas, incluant des arythmies (33,6 %), l'apparition de bruits de galop (28,1 %) et de souffles cardiaques (15,3 %), des SRSF (14,4 %) et des SDPT (8,6 %). La concentration plasmatique en potassium, la présence d'une MRC sous-jacente et d'une dilatation pyélique à l'échographie abdominale ont été associées à la présence d'ACV par l'analyse multivariée. Conclusions: Cette étude montre que les ACV surviennent fréquemment chez les chats présentés pour OTU, et suggère un impact sur la survie de ces animaux. Les animaux avec un historique de MRC, ceux présentés avec une hyperkaliémie et/ou avec une dilatation pyélique à l'échographie abdominale devraient être surveillés avec plus de précautions que les autres.(Traduit per les auteurs).

Obstructing urethral membrane in a girl: a rare cause of female bladder outlet obstruction.

Bladder outlet obstruction is known to produce back pressure changes on the urinary tract with devastating sequelae more often than not. Among the causes, posterior urethral valve, which is the most common, is documented to occur exclusively in males. Female posterior urethral valves have been reported in the past in less than 25 cases in existing literature. We discuss the case of a female toddler who presented with symptoms of straining to void and recurrent urinary tract infections. On evaluation, she was found to have an obstructing urethral membrane causing bladder outlet obstruction, which was endoscopically ablated with success.

Mejora de las variaciones en la ecografía vesical Evaluación del volumen de orina residual posmiccional en obstrucción moderada de la salida de la vejiga / Improving Variations in Bladder Ultrasound Assessment of Post-Void Residual Urine Volume in Moderate Bladder Outlet Obstruction

Objectives: This study aimed to assess the accuracy of post-void residual (PVR) urine volume measurements in patients with moderate bladder outlet obstruction. Materials and Methods: This prospective observational study was conducted between January and December 2019. The inclusion criteria were male patients with symptoms of moderate bladder outlet obstruction. On the other hand, patients with a history of diabetes, symptoms of urinary tract infection, and positive urine for pyuria, as well as patients using medications, such as diuretics, alpha-blockers, and anticholinergic drugs, were excluded. The patients were asked to drink 1000 mL of water one to two hours before the initial ultrasound scan. Pre-void bladder capacity was measured, followed by a post-void ultrasound for residual urine volume measurement at three intervals: immediately after voiding, 15-20 minutes after the first void, and one week later with an empty bladder. Assessment of per-void capacity was carried out, based on the patient's subjective sensation of bladder fullness (a strong desire to void). Results: A total of 78 male patients, with the mean age of 60 years, were included in this study (27 cases in group I; 37 cases in group II; and 14 cases in group III). The mean PVR volume was 92 mL in the first measurement, 62 mL in the second measurement, and 60 mL in the third measurement. Significant differences were found between the first and second PVR measurements and between the first and third PVR measurements (P<0.05). However, no significant difference was found between the second and third PVR measurements (P=0.107). On the other hand, significant differences were found between groups I and II and between groups I and III (P<0.05) in the three PVR measurements. Nevertheless, there was no significant difference between groups II and III in the three PVR measurements (P=0.204, 0.56, and 0.487 for the first, second, and third PVR measurements, respectively). Conclusion: A bladder ultrasound must be performed and interpreted carefully to avoid further unnecessary medications, investigations, or procedures. We recommend a second PVR measurement in patients with bladder outlet obstruction. Also, it is suggested to conduct similar studies in different conditions to confirm our findings.

Variables predictive of voiding disfunction following aponeurotic sling surgery: multivariate analysis

INTRODUCTION: Aponeurotic sling surgeries can evolve with obstruction or voiding dysfunction in 5 to 20 percent of patients. There are few studies on factors that could possibly predispose to voiding difficulties or urinary retention. The objective of this work is to identify these potential clinical or urodynamic factors. MATERIALS AND METHODS: Records from 130 patients who underwent aponeurotic sling surgeries were reviewed. All patients underwent a throughout urodynamic study during pre-operative investigation. The variables studied were age above 65 years, previous pelvic surgeries, concomitant surgeries, post-voiding residue higher than 100 mL, vesical obstruction (according to Blaivas-Groutz nomogram) and urinary flow under 12 mL/s. Post-voiding residue was assessed on the seventh post-operative day through vesical catheterization. Recovering of spontaneous voiding after 7 post-operative days or with a residue higher than 100 mL, was regarded as voiding dysfunction. Univariate analysis was performed with qui-square test and Fisher's exact test, and multivariate analysis was performed by logistic regression with alpha = 5 percent. RESULTS: Age in the studied group ranged from 41 to 83 years (mean 56.7 years), with 69 (53 percent) patients having urethral hypermobility and 61 (47 percent) having intrinsic urethral lesion. Normal voiding occurred in 97 (75.6 percent) women with 7 post-operative days. The only significant variable in the univariate (p = 0.014) and multivariate (p = 0.017) analysis was post-voiding residue higher than 100 mL. CONCLUSION: Pre-operative presence of a post-voiding residual urine higher than 100 mL was the only variable predictive of voiding dysfunction.

Fibrose retroperitoneal: relato de dois casos e revisäo da literatura / Retroperitoneal fibrosis: relate of two cases and literature review

A fibrose retroperitoneal é uma doença rara, geralmente vista em pacientes com idade entre os 40 e 70 anose é secundária a um processo inflamatório crônico do retroperitôneo quepode comprimir os ureteres. A etiologia é desconhecida na maioria dos casos, ainda que vários fatores, como medicaçöes, doenças malignas einflamatórias, possamestar envolvidos. O diagnóstico de fibrose retroperitoneal deve ser considerado em pacientes com dor abdominal ou lombar e lesäo no retroperitôneo. Os sinais e sintomas säorelacionados com comprometimento de estruturas retroperitoneais como veia cava, aorta e ureteres. Quando ambos ureteres säo comprometidos, a insuficiência renal do tipo obstrutivo pode se desenvolver. Várias opçöes medicamentosas têm sido utilizadas nessas situaçöes. Apresentam-se neste trabalho dois casos de fibrose retroperitoneal: um deles idiopático e o outro, provavelmente, secundário a processo inflamatório crönico. Ambos foram submetidos a procedimentos cirúrgicos convencionais com a liberaçäo cirúrgica dos ureteres ou nefrostomia"au"

Sequência da obstruçäo precoce da uretra: um caso de consanguinidade / Urethral premature obstruction sequence: a case of consanguinity

A sequencia de obstruçäo precoce da uretra ou Síndrome de Prune-belly é uma anomalia rara e complexa que afeta órgäos genito-urinários e a parede abdominal. A etiologia é controversa. Relata-se caso de uma recém-nascida em uma família consanguínea. O propósito faleceu pouco tempo após o nascimento

Extravasación de orina espontánea por cálculo ureteral obstructivo: informe de dos casos y revisión de la literatura / Spontaneous urine tissular leak caused by ureteral calculus: report of two cases and literature review

Se presentan dos casos de extravasación espontánea de orina por rotura de la vía, secundaria a obstrucción ureteral distal por cálculo. El diagnóstico se estableció con urografía intravenosa, ultrasonografía y tomografía axil computadorizada. En ambos enfermos, la extracción del cálculo resolvió la extravasación. Se revisan etiopatogenia, cuadro clínico y diagnóstico diferencial. Está indicado el tratamiento de su etiología y la recuperación morfofuncional completa suele ser regla.

Inserción percutánea de cateter de derivación vésico-amniótica en fetos con obstrucción urinaria baja / Percutaneous insertion of catheter of vesico-amniotic bypass in fetus with low urinary obstruction

Se presentan 7 casos de fetos con obstrucción urinaria baja a quienes se insertó un catéter de derivación de confección artesanal a diversas edades del embarazo, considerándose el procedimiento exitoso, en 3 de ellos

Infecçäo das vias urinárias associada a uropatias obstrutivas na infância / Urinary tract infections associated with obstructive uropathies in childhoood

Estudos clínicos, laboratoriais e radiológicos foram realizados com o objetivo de avaliar a incidência de uropatias obstrutivas em 85 crianças portadoras de infecçäo das vias urinárias, acompanhadas por período de 2 anos. Foram detectados 49 casos de uropatias obstrutivas, em faixas etárias que variam de 0 a 10 anos, com predomínio em lactentes do sexo feminino. A uropatia mais encontrada foi o refluxo vésico-ureteral. Os dados clínicos de maior importância foram anorexia e polaciúria, sendo a E. coli o germe presente na maioria dos casos. Avaliaram-se, ainda, o tratamento clínico e/ou cirúrgico utilizado, bem como a evoluçäo de todos os casos

Válvulas de uretra posterior en niños / Posterior urethra valves in children

Se han revisado 8 casos con diagnósticos de Válvulas de Uretra Posterior registrados en los Archivos del Instituto Nacional de Salud del Niño, entre los años de 1977 y 1985. Los resultados mostraron una incidencia de la enfermedad de 1 caso por cada 114.7 admisiones urológicas, en una frecuencia de 1 caso por año. El grupo etáreo más comprometido fue el pre-escolar en el 37 por ciento. El cuadro clínico demostró esfuerzo miccional en el 100 por ciento de los casos, seguido de retención urinaria total en el 87 por ciento, y manifestaciones generales en el 75 por ciento. El diagnóstico clínico fue conformado mediante cistouretografía miccional en el 87 por ciento. Se pudo evidenciar asimismo Reflujo Vésico-ureteral en el 25 por ciento Hidronefrosis bilateral en el 75 por ciento y Ureterectasia moderada en el 62 por ciento. El laboratorio clínico mostró bacteriuria en el 100 por ciento. El tratamiento paleativo consistió en Cistostomía suprapúbica en el 25 por ciento, Vesicostomía cutánea en el 25 por ciento y Nefrostomía bilateral en el 12 por ciento. En los casos con tratamiento definitivo se realizó Electrofulguración en el 37 por ciento y Cirugía abierta de la Válvula en el 12 por ciento. Los resultados mostraron una evolución favorable en el 37 por ciento, Hidronefrosis e Infección urinaria en el 37 por ciento y fallecimientos en el 24 por ciento

Fenótipo "prune-belly": apresentaçäo de três casos / Syndrome versus phenotype \"prune-belly\": presentation of three cases

A síndrome de prune-belly ocorre geralmente no sexo masculino e consiste em ausência ou hipoplasia dos músculos abdominais em acentuada dilataçäo da bexiga e ureteres, em criptorquidia e ausência de próstata. Neste trabalho säo apresentados três casos de nati/neomortos com acentuada atrofia da musculatura abdominal secundária e prolongada distensäo do abdome. Nos dois casos do sexo masculino havia uropatia obstrutiva (válvula de uretra posterior) com grande distensäo da bexiga associada a doença policística renal tipo II de Potter ao lado de ausência de próstata. No terceiro caso, do sexo feminino, a atrofia da parede abdominal foi secundária à volumosa ascite näo-imune. Em todos, havia hipoplasia pulmonar e de órgäos abdominais. Considerando os seus achados e dados de outros trabalhos, os autores consideram que a síndrome é secundária à acentuada e precoce distensäo abdominal, qualquer que seja a sua causa, constituindo em verdade uma seqüência e näo uma síndrome

Duvertículo vesical congénito: Informe de cuatro casos y revisión de la literatura / Congenital bladder diverticulum: Report of four cases and review

RESUMEN. Se reportan los primeros cuatro casos de Drivertículo vesical Congénito diagnosticado y operados en el Hinstituto Hondureño de Seguridad social, (IHSS) Unidad Materno Infantil), en Tegucigalpa. Todos los pacientes fueron varones, con afección del ureter derecho en tres de ellos y un caso bilateral. El motivo de consulta en todos los pacientes fue infección recurrente en las vías urinarias. Los estudios uroradiológicos demostraron la presencia de divertículo vesical congénito con hidroureteronefrosis obstructiva ipsilateral. Todos los pacientes fueron operados realizandoles una diverticuiectomia intravesical más reimplantación uretral ipsilateral tipo Cohen. Su evolución postoperatoria, tanto clinica como radiológica, ha sido exelente.