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The clinical safety and efficacy of upper pole access percutaneous nephrolithotomy (uPPCNL) for inferior pole stones.

Darnel Jasper O. Hurtado ; Jose Benito A. Abraham

Philippine Journal of Urology.2017;27(1):1-5.

OBJECTIVE: Traditionally, percutaneous nephrolithotomy (PCNL) for a lower pole stones are directly removed through an inferior polar access. The authors preferentially treated inferior pole calculi with an upper polar access and evaluated the clinical outcomes.
METHODS: Between January 2010 and April 2016, 32 patients with inferior calyceal stones were treated uPPCNL. All stones were diagnosed using an unenhanced CT scan. The efficacy (stone-free rate) was determined by comparing the preoperative and postoperative imaging. Clinical safety was assessed based on intraoperative parameters pertaining to operative time, blood loss, urinary extravasation, calyceal injury, pelvic perforation and other untoward events. These complications were summarized using the Clavien-Dindo grading system.
RESULTS: The male to female ratio is 1.1:1. All stones included in the study were pure inferior calyceal in location. The average stone size was 1.65±0.84cm (Range:0.6-4.4) with a mean durility of 936±298HU (Range: 350-1500). Stone-free rate was 96.8% (31/32) after a single session of PCNL. The mean operative time was 97±43 minutes (Range:40-230). According to the Clavien-Dindo classification, 26(81.3%) had no complication, 5 (15.6%) had Grade 1 (fever), and 1 (3.1%) had Grade 2.
CONCLUSION: uPPCNL is effective and safe for patients with inferior calyceal stones and confers the following advantages 1) shorter skin-to-calyceal distance 2) straight line to the UPJ and inferior pole 3) a panoramic view of the collecting system 4) less stone migration 5) minimal torque of the nephroscope. This minimally invasive procedure achieves a high stone clearance rate with acceptably low complication rates.

Human ; Male ; Female ; Aged ; Middle Aged ; Adult ; Hemorrhage ; Kidney ; Kidney Calculi ; Kidney Calices ; Nephrostomy, Percutaneous ; Operative Time ; Tomography, X-ray Computed ; Torque

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Supine PCNL (sPCNL): Challenging the “standard” prone (pPCNL).

Jose Benito A. Abraham

Philippine Journal of Urology.2020;30(1):1-6.

Recently, the global endourology scene has witnessed a resurgence of interest in supine PCNL (sPCNL). The number of urologists who are attracted to this “simplified method” of PCNL is growing and its promoters are suggesting to abandon the standard prone approach. Debates on the two positions have become commonplace in endourology scientific meetings. The advocates consistently emphasize that when compared to the prone position, sPCNL has multiple advantages for the surgeon, the anesthesia team and the patient. In spite of these, it is evident that many still favor prone PCNL (pPCNL) because of its time-tested proven efficacy and safety. In fact, up to this present day, majority of PCNLs are still done in the prone position. This review article intends to analyze the “current state of affairs” of the two PCNL positions, describing their advantages and disadvantages. Presently, applying the principles of “what is safe and efficacious in one’s hands” dictates the choice of which technique is utilized to treat a patient. Conversely, it is more clinically sound if this choice was made instead, in consideration of, the interplay of the following factors such as the patient’s clinical demographics, the anatomical features of the renal collecting system, the stone burden and characteristics and ultimately, the physician’s training, skills and experience.
Nephrolithotomy, Percutaneous

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Genitourinary involvement in colorectal cancer: pre-operative diagnostic utility of CEA, computed tomography and cystoscopy in predicting surgical involvement.

Sylvia Karina L. Alip ; Marie Carmela M. Lapitan

Philippine Journal of Urology.2020;30(1):7-13.

OBJECTIVE: This study aims to describe the demographics, clinical characteristics of patients, and the sensitivity and specifity of the clinical, laboratory, radiologic, diagnostic parameters in detecting histopathologically-proven urinary tract involvement in primary colorectal cancer patients referred to the urology service in the Philippine General Hospital. METHODS: This was a retrospective, cross-sectional study. The study included patients referred to the Division of Urology from the Division of Colon, Rectal and Anal Surgery January 1, 2018 to December 31, 2018. All patients diagnosed with colorectal malignancy and referred to the Urology service were included in the study, including their cystoscopy, axial tomography, CEA and symptom assessment scores. RESULTS: Fifty-eight patients were included in the study and, 43% were rectal cancers and 33% were sigmoid cancers. Sensitivities and specificities were as follows. Symptoms 40%, 84%, Cystoscopy, 45%, 100%; Axial tomography 75%, 79%. Surgical involvement correlated with histopathologic involvement with a specificity of 52%. CEA did not discriminate between cohorts of positive or negative involvement. CONCLUSION Cystoscopy, axial tomography and symptom assessment had high positive predictive values. All diagnostics had low negative predictive values when taken in isolation. Surgical assessment correlated with histopathologic findings in half of the population. CEA did not discriminate between those with surgical involvement and those without. A multi-modality assessment strengthens detection of surgical involvement preoperatively.
Cystoscopy ; Colorectal Neoplasms ; Colonic Neoplasms ; Diagnostic Tests, Routine

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Mini-percutaneous nephrolithotomy versus standard percutaneous nephrolithotomy for stones 2 cm and above: A meta-analysis.

Nytte Celle Janne Magallanes-Mascarinas ; Marc Vincent Trinidad ; Oyayi Arellano ; Joseph Michael Ursua

Philippine Journal of Urology.2020;30(1):14-26.

: The current standard in the management of large burden renal stones is conventional percutaneous nephrolithotomy. Mini-percutaneous nephrolithotomy (mini-PCNL) is a procedure developed to decrease complications of standard PCNL by decreasing the size of access. Recent studies have shown high stone free rates with minimal complications in utilizing mini-PCNL in larger stones. OBJECTIVE: This study aims to assess the safety and efficacy of mini-PCNL for stones with sizes 2 cm and above versus standard PCNL. METHODS: This is a meta-analysis comparing mini-PCNL and standard PCNL in the management of renal stones 2 cm and above. A PUBMED search was done to acquire randomized controlled trials (RCTs), prospective and retrospective studies of mini-PCNL and standard PCNL assessing large burden renal stones, defined as 2 cm and above. Two authors independently assessed the studies for selection. Comparison of mini-PCNL and standard PCNL was done according to following parameters: stone-free rate, operative time, postoperative decrease in hemoglobin levels, length of hospital stay, rate of transfusion, occurrence of fever, postoperative pain scores, and occurrence of urine leakage. RESULTS: Results of this meta-analysis showed that standard percutaneous nephrolithotomy has an advantage over mini percutaneous nephrolithotomy only in terms of having a shorter operative time for larger stones (MD: 8.44 min, 95% CI 6.36 – 10.52 min, p < 0.00001). No difference was found in the outcomes of postoperative pain scores (MD 0.19 VAS score, %CI 0.16 – 0.54, p = 0.29), occurrence of postoperative fever (OR 0.33, 95% CI 0.18 – 0.61, p = 0.06) and the stone-free rate (OR 0.97, 95% CI 0.67 – 1.41, p = 0.88). Mini-percutaneous nephrolithotomy has advantage over standard percutaneous nephrolithotomy for large-burden stones in terms of shorter length of postoperative hospital stay (MD 1.44 day, 95% CI 1.22-1.66, P <0.00001), lower hemoglobin drop (MD 0.48 mg/dl, 95% CI 0.39–0.66, p < 0.00001), lower rate of transfusion (OR 0.40, 95% CI 0.20 – 0.99, p = 0.01), urine leakage (OR 0.11, 95% CI 0.03 – 0.39, p = 0.0008) and an overall lower occurrence of complications (OR 0.42, 95% CI 0.28 – 0.62, p < 0.0001). CONCLUSION Mini-percutaneous nephrolithotomy is a safe and effective intervention in large-burden stones 2 cm in size and above.
Nephrolithotomy, Percutaneous

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Comparison of MRI-ultrasound fusion–guided and transrectal ultrasound–guided prostate biopsy for the detection of prostate cancer in biopsy-naive men.

Patrick P. Blaza ; Jason L. Letran ; German Jose T. Albano ;

Philippine Journal of Urology.2020;30(1):27-36.

OBJECTIVE: Transrectal ultrasound-guided prostate biopsy (TRUSPBx) is the recommended method for the histopathologic confirmation of prostate cancer. However, the overall cancer detection rate is low; hence, patients are potentially exposed to multiple biopsies and their attendant morbidity. Multiparametric MRI of the prostate followed by MRI-Ultrasound fusion-guided prostate biopsy (FBx) is an emerging diagnostic pathway that has been established and recommended in men with a persistently elevated PSA despite a previous negative biopsy. However, evidence regarding its value in the biopsy-naïve setting is scarce. The objective is to compare the diagnostic accuracy of MRI fusion-guided prostate biopsy against TRUSPBx in biopsy-naïve men. METHODS: This is a retrospective cohort study involving biopsy-naïve men with a PSA of 3 to 20 ng/ml. Primary outcomes of the study include overall cancer detection rate (CDR) and detection of clinically-significant prostate cancer (csPCa). Subgroup analyses were performed based on PSA level and prostate volume. Independent t-test, Mann Whitney U test and Chi square test were used in the statistical analysis. RESULTS: A total of 185 biopsy-naïve men with a PSA level of 3 – 20 ng/mL were included in the study. Median pre-biopsy PSA level was 7.07 ng/mL (5.06 – 11.0) and 9.02 ng/mL (5.8 – 13.8) in the FBx arm and TRUS-guided biopsy arm, respectively. Ninety-nine (n=99; 53%) underwent MP-MRI of the prostate followed by MRI fusion-guided prostate biopsy and eighty-six (n=86; 46%) underwent the standard TRUS-guided prostate biopsy. Compared to TRUSPBx, FBx significantly detected more prostate cancer (CDR: 68% vs 30%, p<0.0001) and csPCa (46% vs 22%, p=0.001). The diagnostic yield of FBx was distinctly superior in the subgroup of men with a PSA of 4 – 10 ng/mL (CDR: 64% vs 7%, p<0.0001; csPCa: 43% vs 2%, p<0.0001) and a prostate volume of <40grams (CDR: 82% vs 36%, p<0.0001; csPCa: 53% vs 21%, p=0.006). CONCLUSION Compared to the current standard, the diagnostic yield of MRI fusion-guided prostate biopsy is significantly better in biopsy-naïve men. FBx detected more men with prostate cancer, with a higher proportion of men having clinically-significant disease. This advantage is strongly evident in men with a PSA level of 4 – 10 ng/mL and an average prostate volume of 40 grams. Hence, Multiparametric MRI of the prostate followed by MRI fusion-guided prostate biopsy is an effective first-line diagnostic modality for prostate cancer in men presenting with elevated PSA levels.
Male ; Image-Guided Biopsy ; Prostatic Neoplasms

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Diagnostic value of intraoperative stone and pelvic urine culture versus preoperative urine culture in the prediction of postoperative systemic inflammatory response syndrome in percutaneous nephrolithotomy: A prospective study in a tertiary hospital.

Marc Vincent T. Trinidad ; Joseph Michael Ursua

Philippine Journal of Urology.2020;30(1):37-42.

OBJECTIVE: To compare the value of intraoperative stone culture (IOSC) and intraoperative pelvic urine culture (IOPUC) versus pre-operative urine culture (POBUC) in the early detection of systemic inflammatory response syndrome (SIRS) in patients undergoing percutaneous nephrolithotomy (PCNL). METHODS: This is a prospective clinical study which includes all adult patients undergoing PCNL. All patients who were operated on should have a negative preoperative urine culture (POBUC) results. Intraoperative pelvic urine culture (IOPUC) and stone culture (IOSC) were extracted and results were interpreted if they were contributory in acquiring SIRS post operatively. RESULTS: The demographics of each patient such as age, sex, having diabetes, laterality, location of calculi had no correlation to the development of SIRS. Patients with positive IOPUC and IOSC results yielded a significant value with odds of having SIRS 4.71 and 13.74, respectively. CONCLUSION In the study, all patients underwent PCNL with negative preoperative urine culture findings. Having intraoperative cultures, IOPUC and IOSC, can definitely help predict the occurrence of SIRS and ultimately be one step ahead in the management of these patients to decrease overall morbidity and mortality.
Nephrolithotomy, Percutaneous ; Systemic Inflammatory Response Syndrome ; Postoperative Period

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Comparing the efficacy of periprostatic nerve block alone versus periprostatic nerve block plus oral tramadol plus paracetamol tablet for pain control of patients during and after transrectal biopsy of the prostate gland: A randomized controlled trial.

Eric Roudel C. Ecalnir ; Kathleen R. Gonzales ; Eduardo M. Anonuevo ;

Philippine Journal of Urology.2020;30(1):43-48.

OBJECTIVE: To compare the efficacy of periprostatic nerve block (PPNB) alone versus periprostatic nerve block plus oral Tramadol+Paracetamol Tablet for pain control during and after transrectal ultrasound-guided (TRUS) biopsy of the prostate gland. METHODS: This was a double-blind, placebo-controlled randomized clinical trial. The authors randomized 40 male patients each to either PPNB or PPNB plus oral tramadol and paracetamol (37.5mg/325mg) an hour prior to prostate biopsy. A ten-point visual analog scale was used to measure pain intensity and was recorded upon insertion of the ultrasound probe, during the biopsy, and one hour after the procedure. RESULTS: The two groups were similar in terms of baseline characteristics. Reductions in pain scores were statistically significantly different (p<.001) for each group when comparing pain from at point of insertion of the probe versus during biopsy and versus one-hour post-operatively. However, when comparing the two groups, the pain scores were not statistically significantly different upon insertion of the probe (p=.68), during the biopsy (p=.26) and one-hour post-operatively (p=.54). CONCLUSION Tramadol and paracetamol combination in addition to periprostatic nerve block produces pain relief similar to standard periprostatic nerve block alone.
Male ; Prostate ; Nerve Block ; Biopsy ; Ultrasonography

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Outcomes of surgical sperm retrieval for non-obstructive azoospermia: A single-center experience.

Alvin Christopher D. Lavadia ; Dennis G. Lusaya ; Nikko J. Magsanoc ; Virgilio M. Novero Jr.

Philippine Journal of Urology.2022;32(2):43-49.

INTRODUCTION: To evaluate the sperm retrieval rate and factors influencing its success among patients who undergo conventional or microsurgical testicular sperm extraction (TESE) for non-obstructive azoospermia. METHODS: Data were from 223 consecutive patients who underwent conventional or microsurgical TESE from August 2011 to January 2021 under two urologists of the center. Data regarding age, follicle stimulating hormone (FSH), luteinizing hormone (LH), testosterone, estradiol, testicular size, histopathology, surgical technique, and sperm retrieval were collected. Patients with obstructive azoospermia, repeated TESE procedure, and those who underwent TESE for oncofertility were excluded. Using simple logistic regression analysis, the relationship of the different factors to successful sperm retrieval was computed as odds ratio. RESULTS: The overall surgical sperm retrieval rate was found to be 65.71%. The odds ratio of successful sperm retrieval were 1.04 (95% CI 1.00-1.09) for age, 0.94 (95% CI 0.91-0.97) for FSH, 0.93 (95% CI 0.87-0.99) for LH, 1.24 (95% CI 0.99-1.55) for testosterone, and 0.93 (95% CI 0.88-0.98) for estradiol. Decreased testicular size was also associated significantly with lower sperm retrieval rate (OR 0.22, 95% CI 0.09-0.56). Histopathologic pattern and surgical technique were also significantly associated with successful sperm retrieval. CONCLUSION The surgical sperm retrieval rate in this institution is comparable to the global surgical sperm retrieval rate. Age, FSH, LH, estradiol, testicular size, histopathologic pattern and surgical technique were found to have significant association to successful surgical sperm retrieval.

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Laparoscopic radical prostatectomy after robotic radical prostatectomy training: A matched pair analysis of a single surgeon experience.

Jade Kenneth G. Lomanso ; Enrique Ian S. Lorenz ; Rajiv H. Kalbi

Philippine Journal of Urology.2022;32(2):50-56.

OBJECTIVE: The authors compared the perioperative, oncological, and functional outcomes of asingle surgeon’s prior experience with robot assisted laparoscopic prostatectomy (RALP) to those oflaparoscopic radical prostatectomy (LRP) which he performed later after RALP. METHODS: This was a retrospective study on patients who underwent LRP and RALP by a single surgeonwho performed a similar antegrade approach to the prostate. Patients’ clinical characteristics werecollected— then a 1:1 pairing on LRP to RALP patients with the same preoperative profile. Pairedt-test with a level of significance was set at p<0.05 using MedCalc. RESULTS: One hundred cases were done from April 2011 to March 2020. Out of eighty-four with sufficientdata, twelve pairs were matched with no significant difference on age (p=0.13), BMI (p=0.26), clinicalstage (p=1.0), prostate size (p=0.46), PSA (p=0.40) and Gleason score (p=1.0). Significant differencewas noted on lymph node dissection (p=0.003), number of isolated lymph nodes (p=0.038), durationof procedure (p=0.0263), and surgical margin (p=0.0069). No significant difference on lymph nodeyield (p=0.67), blood loss (p=0.95), hospital stay duration (p=0.71), perineural invasion (p=0.894),lymphovascular invasion (p=0.4783), extracapsular extension (p=0.843), seminal vesicle involvement(p=0.4783), follow-up PSA (p=1.000) for two years, complications (p=0.09), return of continence(p=0.287) and erectile dysfunction (p=1.0). CONCLUSION A trained robotic surgeon can perform laparoscopic radical prostatectomy with comparableperioperative, oncologic, and functional outcomes.

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Male infertility practice among Filipino urologists: A road less traveled.

Janssen Dion T. Unas ; Marlon P. Martinez

Philippine Journal of Urology.2022;32(2):57-69.

INTRODUCTION: Advancement in male infertility were evident during the past several decades where ashift to evidence-based management is becoming apparent. However, there is still a knowledge gapamong training urologists in the said field where the Philippines is no exception. This is the first studythat would determine the current trend of practice in male infertility among Filipino urologists andrecommend solutions to this problem. MATERIALS AND METHODS: A 42-item self-administered survey questionnaire was carried out using theSurvey Monkey. This Institutional Review Board (IRB)-approved online survey consisted of 3 parts:demographics, adherenceto the guidelines andclinical practice.The authors contacted thePhilippineUrological Association (PUA) via email and requested for confidential distribution of an online survey.The participants were given 4 weeks from the date of initial mailing until end of the survey process.STATA 15.0 was used for data analysis. RESULTS: A total of 131 respondents participated in the survey. Only 13% responded that they are “veryinterested” in the specialty of male infertility. About 84% of respondents see less than 5 male infertilitycases per month with 67% of them reporting that male infertility constitutes less than 10% of theirpractice. For the treatment, 36% of them prescribe testosterone for empiric medical therapy of maleinfertility which is contraindicated in the treatment of male infertility and only 5% of respondents offerthe gold standard microsurgical varicocoelectomy in patients with varicocoele. Only 8% of respondentsare affiliated with IVF centers, which is troubling with regards to how men with poor reproductivepotential are treated especially in azoospermic men. Two percent of the respondents rated their exposureto male infertility during residency as “excellent” while only 3% of them rated their knowledge asexcellent. With this, responders suggest more exposure to the specialty, more postgraduate courses,lectures, and webinars, more training opportunities, a local guideline for Filipino urologists to follow,and more exposure to professional networks. CONCLUSION Practice of male infertility in the Philippines is inadequate in terms of knowledge andtreatment for these patients. Most respondents follow the male infertility guidelines available, but itdoes not translate into practice, highlighting their own preferences in diagnosis and treatment. Eventhough they consider it as a necessary part of Urology, lack of exposure to cases, surgical loads, andresearch makes it a challenge when faced with these cases in their clinics. A change in the residency,postgraduate, and national level are recommended to have the best clinical outcome and well-beingfor these patients.

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