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Prospective results of the minimally invasive laser enucleation of the prostate (MiLEP).
Prostate 2024 September 8
BACKGROUND: The objective of the present study is to prospectively analyze the prostate enucleation procedure with Holmium Laser using the minimally invasive technique (MiLEP), comparing the outcomes and their variables pre- and postoperatively.
METHODS: We studied men aged 40 years or over, with prostate volumes greater than or equal to 35 cm³ with lower urinary tract symptoms due to BPH. We performed flowmetry and administered the IPSS questionnaire before and 6 months after the MiLEP procedure. The patients were operated on with a 60 W Holmium Laser (Cyber-Ho Quanta System®) using 54 W of power (energy 1.8 J and frequency of 30 Hz). Enucleation was performed using the en bloc technique with early sphincter release. After enucleation, the tissue was morcellated using a 22 Fr morcescope (RZ-Medizintechnik GmbH, Tuttlingen, Germany) and Piranha (Richard Wolf) morcellator. The final Hemostasis after morcelation was made using laser with 30wW power, energy at 1,0 joules and frequency at 30 Hertz. Student's T test and Man-Whitney was used to statistical analysis (p < 0.05).
RESULTS: After selection we submitted 73 patients (mean age= 68.2 years) to MiLEP procedure with a follow up of 6 months. The prostate volume presented an average of 94.53 cm³ (65 to 112 cm³, SD = 5.363) preoperatively. The urinary continence rate after the procedure was greater than 95% after 1 week and 99% in the 1st month. All patients were continent after 6 months. The IPSS questionnaire before (mean = 21.18 points/SD = 6.557) and after (mean = 7.92 points/SD = 2.408) the MiLEP had statistical significance (p < 0.001). The flowmetry(ml/s) before (9.02/SD = 2.842) and after (21.07/SD = 6.228) the MiLEP had statistical significance (p < 0.001). The average time of the procedure was 78.5 min and the bladder catheter was removed after 18 h in mean. In 4 patients (5.8%) we observed hematuria and in 1 case (1.47%) the patient needs urinary catheterization.
CONCLUSION: MiLEP is a safe and effective procedure, with significant improvement in urinary flow and symptoms in the short term. Although the results of this study were satisfactory and the urinary incontinence rate was lower compared to HoLEP data found in the literature, multicenter studies with longer follow-up are needed to confirm these findings.
METHODS: We studied men aged 40 years or over, with prostate volumes greater than or equal to 35 cm³ with lower urinary tract symptoms due to BPH. We performed flowmetry and administered the IPSS questionnaire before and 6 months after the MiLEP procedure. The patients were operated on with a 60 W Holmium Laser (Cyber-Ho Quanta System®) using 54 W of power (energy 1.8 J and frequency of 30 Hz). Enucleation was performed using the en bloc technique with early sphincter release. After enucleation, the tissue was morcellated using a 22 Fr morcescope (RZ-Medizintechnik GmbH, Tuttlingen, Germany) and Piranha (Richard Wolf) morcellator. The final Hemostasis after morcelation was made using laser with 30wW power, energy at 1,0 joules and frequency at 30 Hertz. Student's T test and Man-Whitney was used to statistical analysis (p < 0.05).
RESULTS: After selection we submitted 73 patients (mean age= 68.2 years) to MiLEP procedure with a follow up of 6 months. The prostate volume presented an average of 94.53 cm³ (65 to 112 cm³, SD = 5.363) preoperatively. The urinary continence rate after the procedure was greater than 95% after 1 week and 99% in the 1st month. All patients were continent after 6 months. The IPSS questionnaire before (mean = 21.18 points/SD = 6.557) and after (mean = 7.92 points/SD = 2.408) the MiLEP had statistical significance (p < 0.001). The flowmetry(ml/s) before (9.02/SD = 2.842) and after (21.07/SD = 6.228) the MiLEP had statistical significance (p < 0.001). The average time of the procedure was 78.5 min and the bladder catheter was removed after 18 h in mean. In 4 patients (5.8%) we observed hematuria and in 1 case (1.47%) the patient needs urinary catheterization.
CONCLUSION: MiLEP is a safe and effective procedure, with significant improvement in urinary flow and symptoms in the short term. Although the results of this study were satisfactory and the urinary incontinence rate was lower compared to HoLEP data found in the literature, multicenter studies with longer follow-up are needed to confirm these findings.
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