Risk factors for perioperative complications in transurethral prostate resection in patients at a Colombian institution. / Factores de riesgo para complicaciones perioperatorias en la resección transuretral de próstata en pacientes de una institución de Colombia.

OBJECTIVE: Determining the complications rate and the risk factors associated with early operative and postoperative complications with a bipolar transurethral resection of the prostate at a complex care institution in Colombia. MATERIALS AND METHODS: A mixed cohort study was conducted involving 340 patients diagnosed with benign prostatic hyperplasia who were taken to bipolar transurethral resection of the prostate between 2012 and 2019. Data based on the baseline and perioperative characteristics were collected, and the rate of complications determined up to 30 postoperative days. RESULTS: A total of 67 patients (19.45%) presented perioperative complications of which 17 (25.37%) were previously hospitalized. According to the Clavien Dindo classification, 14.79% were grade I - II: secondary hematuria was the most reported complication and was present in 18 patients (5.22%), followed by complicated urinary tract infections in 16 (4.64%) and dysfunction of the ureterovesical catheter in 6 (1.76%). The risk factors found were surgery during hospitalization (RR:2.23, 95% CI: 1.14 - 4.39), INR (RR: 7.59, IC95%:4.63 - 12.44), duration in days of cysto/irrigation (RR:1.32, CI95%: 1.22 - 1.42) and urethral catheter use (RR: 1.04, CI95%: 1.02 - 1.05). CONCLUSIONS: In this study, the complication rate after bipolar transurethral resection of the prostate was less than 20%. The most frequent complications were grade Iand II according to the Clavien Dindo classification. The risk factors that were found are modifiable, which could reduce postoperative morbidity.

OBJETIVO: Determinar la tasa de complicaciones y los factores de riesgo para complicaciones perioperatorias tempranas de la Resección Transuretral de Próstata con bipolar (RTUP-B) en una institución prestadora de servicios de salud de Colombia. MATERIALES Y MÉTODOS: Se realizó un estudio de cohortes mixta en el cual se incluyeron 340 pacientes con diagnóstico de Hiperplasia Prostática Benigna (HPB) que fueron llevados a RTUP-B entre el año 2012y 2019. Se recolectaron datos sobre las características basales y perioperatorias y se determinó la tasa de complicaciones hasta los 30 días postoperatorio. RESULTADOS: 67 pacientes (19,45%) presentaron complicaciones perioperatorias de las cuales 17 (25,37%) fueron intrahospitalarias. Según la clasificación Clavien Dindo el 14,79% fueron complicaciones grado I y II: la hematuria secundaria fue la complicación más reportada en (5,22%), seguida de infecciones del tracto urinario (4,64%) y disfunción de la sonda uretrovesical (1,76%). Los factores de riesgo fueron: estancia hospitalaria previo a la cirugía por cualquier causa (RR:2,23, IC95%: 1,14 ­ 4,39), aumento del valor del INR por unidad (RR: 7,59, IC95%: 4,63 ­ 12,44) y cada día adicional de irrigación vesical (RR: 1,32, IC95%:1,22 ­ 1,42) y sonda vesical (RR: 1,04, IC95%: 1,02­ 1,05). CONCLUSIONES: En este estudio, la tasa de complicaciones después de la RTUP con bipolar fue de meno rdel 20%, siendo las complicaciones grados I y II las más frecuentes. Los factores de riesgo encontrados son modificables lo que podría reducir la morbilidad postoperatoria.

The pathological growth of the prostate gland in atherogenic contexts.

The human prostate is an androgen-dependent gland where an imbalance in cell proliferation can lead to benign prostatic hyperplasia (BPH), which results in voiding lower urinary tract symptoms in the elderly. In the last decades, novel evidence has suggested that BPH might represent an element into the wide spectrum of disorders conforming the Metabolic Syndrome (MS). The dyslipidemic state and the other atherogenic factors of the MS have been shown to induce, maintain and/or aggravate the pathological growth of different organs, with data regarding the prostate being still limited. We here review the available epidemiological and experimental studies about the association of BPH with dyslipidemias. In particular, we have focused on Oxidized Low-Density Lipoproteins (OxLDL) as a potential trigger for vascular disease and cellular proliferation in atherogenic contexts, analyzing their putative molecular mechanisms, including the induction of specific extracellular vesicles (EVs)-derived miRNAs. In addition to the epidemiological evidence, OxLDL is proposed to play a fundamental role in the upregulation of prostatic cell proliferation by activating the Rho/Akt/p27Kip1 pathway in atherogenic contexts. miR-21, miR-141, miR-143, miR-145, miR-155, and miR-221 would be involved in the transcription of genes related to the proliferative process. Although much remains to be investigated regarding the impact of OxLDL, its receptors, and molecular mechanisms on the prostate, it is clear that EVs and miRNAs represent a promising target for proliferative pathologies of the prostate gland.

Influencia de la modalidad de respuesta, edad y nivel de educación en el cuestionario internacional de síntomas prostáticos (IPSS) / Influence of the response modality, age and level of education in the international prostate symptoms questionnaire (IPSS)

OBJETIVOS: evaluar la influencia de la modalidad de respuesta (paciente vs. asistido por urólogo) en el cuestionario IPSS (International Prostate Symptom Score) y su relación con la edad y nivel de educación. MATERIALES Y MÉTODOS: Análisis prospectivo de 74 pacientes que acudieron a la consulta de urología por síntomas de Hiperplasia Prostática Benigna (HPB) con o sin tratamiento para su patología y que no hayan completado anteriormente el cuestionario internacional de síntomas prostáticos (IPSS). Los cuestionarios fueron completados en la misma consulta urológica, primero por el paciente y luego con ayuda del urólogo. Se categorizó por edad y nivel de educación. Se evaluó la diferencia entre los puntajes de IPSS obtenidos con la forma autocompletada y con asistencia del urólogo y si esta diferencia estaba relacionada con la edad y con el nivel de educación. Los datos fueron analizados utilizando test no paramétrico para datos apareados de Wilcoxon. RESULTADOS: no se encontró diferencia estadísticamente significativa entre el cuestionario completado por el paciente y el asistido por el urólogo. La media del score total fue de 13,66, y 13,67, respectivamente (p: 0.86). Al analizar los subgrupos, con respecto a la edad y al nivel de educación, tampoco se encontraron diferencias estadísticamente significativas. CONCLUSIÓN: en nuestra población de estudio, el cuestionario IPSS no fue influenciado por la modalidad de administración, tampoco por la edad ni por el nivel de educación.

OBJECTIVES: to evaluate the influence of the response modality (patient vs. urologist-assisted) in the IPSS questionnaire (international prostate symptom score) and its relationship with age and education level. MATERIALS AND METHODS: Prospective analysis of 74 patients who came to the urology clinic for symptoms of Benign Prostatic Hyperplasia (BPH) with or without treatment for their pathology and who have not previously completed the international prostate symptoms questionnaire (IPSS). The questionnaires were completed in the same urological consultation, first by the patient and then with the help of the urologist. It was categorized by age and education level. The difference between the IPSS scores obtained with the self-completed form and with the assistance of the urologist and whether this difference was related to age and level of education was evaluated. The data were analyzed using non-parametric test for paired Wilcoxon data. RESULTS: no statistically significant difference was found between the questionnaire completed by the patient and the one assisted by the urologist. The average of the total score was 13.66, and 13.67, respectively (p: 0.86). When analyzing the subgroups, regarding age and level of education, no statistically significant differences were found. CONCLUSION: In our study population, the IPSS questionnaire was not influenced by the modality of administration, neither by age nor by level of education.

'Button type' bipolar plasma vaporisation of the prostate compared with standard transurethral resection: a systematic review and meta-analysis of short-term outcome studies.

OBJECTIVE: To evaluate the surgical morbidity and effectiveness in improving symptoms of benign prostatic hyperplasia (BPH), comparing 'button-type' bipolar plasma vaporisation (BTPV) vs transurethral resection of the prostate (TURP). METHODS: We conducted a literature search of published articles until November 2014. Only prospective and randomised studies with comparative data between BTPV and conventional TURP (mono- or bipolar) were included in this review. RESULTS: Six articles were selected for the analyses. In the 871 patients evaluated, 522 underwent TURP and 349 BTPV. There was a tendency for a higher transfusion rate in the TURP group, with two BTPV cases (0.006%) and 16 TURP cases (0.032%) requiring transfusions (P = 0.06). The number of complications was similar between the groups (odds ratio 0.33, 95% confidence interval [CI] 0.8-1.31; P = 0.12; I(2) = 86%). When subdivided by severity, 10.7% (14/131) and 14.6% (52/355) of complications were classified as severe (Clavien 3 or 4) in patients who underwent BTPV and TURP, respectively (P = 0.02). The average duration of indwelling catheterisation was significantly less in patients who underwent BTPV (standardised mean difference [SMD] -0.84; 95% CI -1.54 to 0.14; P = 0.02; I(2) = 81%). Both treatments significantly improved symptoms and the postoperative International Prostate Symptom Score was similar in both groups (SMD 0.09, 95% CI -1.56 to 1.73; P = 0.92). CONCLUSION: BTPV is an effective and safe treatment for BPH. The improvement of urinary symptoms and overall complications are comparable to conventional TURP. However, BTVP appears to be associated with a lower rate of major complications and duration of indwelling catheterisation.