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    The Benign Renal Masses that Were Exposed after Nephron-Sparing Surgery: Postsurgical Fatty Tumor. Is It Related to the Surgical Technique?
    (Codon Publications, 2022) Balasar, Mehmet; Ozkent, Mehmet Serkan; Aydin, Arif; Taskapu, Hakan Hakki; Atici, Ahmet; Ecer, Gokhan; Sonmez, Mehmet Giray
    After nephron-sparing surgery (NSS), postsurgical fatty tumor could be mistakenly reported as angiomyolipoma during radiologic imaging of some patients. In the present paper, we studied the postsurgical fatty tumor detected after NSS but not covered before in the literature. In addition, we also evaluated whether the postsurgical fatty tumor was related to the surgical technique employed. Patients admitted to the urology department of our university hospital from 2014 to 2019 and operated with open NSS were evaluated retrospectively. We detected those 156 patients were operated with NSS. Nine patients with angiomyolipoma as primary pathology and four patients with surgical border positivity were excluded from the study. The patients were divided into two groups based on the repair of tumor extraction region. In Group 1, fatty tissue was used for repair, and Group 2 is the primary repair group. In all, 143 patients (Group 1 = 79, and Group 2 = 64) were included in the study. No demographic and radiologic differences, such as number of patients, age, gender, positioning of tumor, mass localization, tumor diameter, and RENAL nephrometry scoring system, were detected between the two groups. Postsurgical fatty tumors were detected in 28 patients in Group 1 and in two patients in Group 2 (P < 0.001). In patients with negative surgical margins after partial nephrectomy, lesions that were radiologically detected mimicking as angiomyolipoma were defined as postsurgical fatty tumor. This mass containing adipose tissue only neither depicted vascularization and enhancement nor increase in size for at least 1 year. We assumed that these lesions must be followed as benign lesions not requiring additional treatment.
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    The Benign Renal Masses that Were Exposed after Nephron-Sparing Surgery: Postsurgical Fatty Tumor. Is It Related to the Surgical Technique?
    (Codon Publications, 2022) Balasar, Mehmet; Ozkent, Mehmet Serkan; Aydin, Arif; Taskapu, Hakan Hakki; Atici, Ahmet; Ecer, Gokhan; Sonmez, Mehmet Giray
    After nephron-sparing surgery (NSS), postsurgical fatty tumor could be mistakenly reported as angiomyolipoma during radiologic imaging of some patients. In the present paper, we studied the postsurgical fatty tumor detected after NSS but not covered before in the literature. In addition, we also evaluated whether the postsurgical fatty tumor was related to the surgical technique employed. Patients admitted to the urology department of our university hospital from 2014 to 2019 and operated with open NSS were evaluated retrospectively. We detected those 156 patients were operated with NSS. Nine patients with angiomyolipoma as primary pathology and four patients with surgical border positivity were excluded from the study. The patients were divided into two groups based on the repair of tumor extraction region. In Group 1, fatty tissue was used for repair, and Group 2 is the primary repair group. In all, 143 patients (Group 1 = 79, and Group 2 = 64) were included in the study. No demographic and radiologic differences, such as number of patients, age, gender, positioning of tumor, mass localization, tumor diameter, and RENAL nephrometry scoring system, were detected between the two groups. Postsurgical fatty tumors were detected in 28 patients in Group 1 and in two patients in Group 2 (P < 0.001). In patients with negative surgical margins after partial nephrectomy, lesions that were radiologically detected mimicking as angiomyolipoma were defined as postsurgical fatty tumor. This mass containing adipose tissue only neither depicted vascularization and enhancement nor increase in size for at least 1 year. We assumed that these lesions must be followed as benign lesions not requiring additional treatment.
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    Can Urinary KIM-1 and NGAL Predict Management Endoscopic Surgery in Acute Unilateral Obstructive Stone Disease? Results from a Prospective Cohort Study
    (Karger, 2021) Goger, Yunus Emre; Ozkent, Mehmet Serkan; Topcu, Cemile; Atici, Ahmet; Sonmez, Mehmet Giray; Balasar, Mehmet; Gurbilek, Mehmet
    Introduction: Kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) are the leading novel biomarkers used efficiently in acute kidney injury (AKI). The levels of these biomarkers increase especially in the early period of nephrotoxic and ischemic renal damage. In this study, we aimed to investigate the clinical importance of NGAL and KIM-1 biomarkers used in the effective evaluation of kidney functions in patients with acute unilateral obstructive stone disease (AUOSD) in the management of endoscopic surgery. Materials and Methods: We prospectively included patients who underwent endoscopic surgery due to AUOSD between January 2018 and December 2019. Urine KIM-1 and NGAL values of the patients were measured preoperative period, postoperative 4th h, and postoperative 7th day. The patients were evaluated according to the location and size of the stone, the degree of renal hydronephrosis, the duration of the operation, complications, and JJ stent placement. Results: The study enrolled 50 patients. Urinary KIM-1/Cr and urinary NGAL/Cr ratios were higher in postoperative 4th h than in others (p < 0.001). Also, we found that urinary KIM-1/Cr and urinary NGAL/Cr ratios with Grade 2 and higher hydronephrosis were statistically higher than Grade 0-1 hydronephrosis (p < 0.001 and p: 0.042, respectively). Additionally, a preoperative urinary KIM-1 value of 1.24 ng/mL had a sensitivity of 78% and a specificity of 63% to predict the presence of hydronephrosis. When urine KIM-1 and NGAL results were compared with surgery time, stone size and location, serum creatinine (sCr) value, and Post-Ureteroscopic Lesion Scale grade, the difference was not statistically significant. Postoperative 7th day NGAL/Cr and KIM-1/Cr ratios were statistically higher in those with JJ stents placed (p: 0.03 and p: 0.004, respectively). Conclusion: KIM-1 and NGAL can be used in our assessment of renal function in patients with AUOSD, even if sCr is normal. Also, these biomarkers can predict the presence of hydronephrosis. It can be helpful in determining the time of surgical treatment, as well as providing information in the follow-up of patients with JJ stents after treatment.
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    Comparison of Oral Sodium Bicarbonate and Solifenacin Treatment in Female Overactive Bladder Patients With Acidic Urine pH
    (Lippincott Williams & Wilkins, 2020) Sonmez, Mehmet Giray; Ecer, Gokhan; Atici, Ahmet; Ozkent, Mehmet Serkan; Iyisoy, Mehmet Sinan; Ozturk, Ahmet
    Objective In this study, we planned to compare the effects of oral sodium bicarbonate (NaHCO3) and anticholinergic (solifenacin) treatments in women with overactive bladder (OAB) and acidic urine pH values (<6). Methods According to the referral order of OAB patients, 8 g/d oral NaHCO3(group 1) or 5 mg/d solifenacin succinate (group 2) was given to the patients. Both treatment regimens were applied one at a time for 12 weeks in total. Laboratory values, bladder diary, Patient Perception of Bladder Condition score, Patient Perception of Intensity of Urgency Scale, Overactive Bladder-Validated 8-Question Awareness Tool, and the King's Health Questionnaire (KHQ) scores before and after treatment were compared. Results A total of 59 patients were evaluated. Thirty-one patients were included in group 1, and 28 patients were included in group 2. No difference was detected in pretreatment and posttreatment laboratory values other than urine pH values in both groups. Whereas there was no difference in pretreatment urine pH values among the 2 groups, posttreatment urine pH values were significantly higher in group 1 compared with group 2 (P= 0.08,P< 0.001, respectively). There was a significant amelioration in the bladder diary parameters, symptom scores, and KHQ values measured after treatment in both groups. However, degree of amelioration in posttreatment outcomes was similar among the groups. Conclusions It was demonstrated that urinary alkalization made with oral NaHCO(3)in female OAB patients with acidic urine pH had a significantly positive effect on symptoms and symptom scores, and these results are similar to the results of solifenacin treatment.
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    Effects of urine alkalinization with sodium bicarbonate orally on lower urinary tract symptoms in female patients: a pilot study
    (Springer London Ltd, 2018) Sonmez, Mehmet Giray; Goger, Yunus Emre; Ecer, Gokhan; Atici, Ahmet; Ozkent, Mehmet Serkan; Ozturk, Ahmet
    In this study, we planned to explore the effects of sodium bicarbonate orally (NaHCO3) treatment on female patients with lower urinary tract symptoms (LUTS) who have acidic urine pH values (< 6). NaHCO3 was given orally to 33 female patients for 4 weeks at a dose of 2 x 4 g/day. Laboratory values, bladder diary, the Patient Perception of Bladder Condition Score (PPBC), Patient Perception of Intensity of Urgency Scale (PPIUS), Overactive Bladder-Validated 8-question Awareness tool (OAB-V8), Pelvic Pain and Urgency & Frequency Patient Symptom Scale tests (PUFSS), and the King's Health Questionnaire (KHQ) scores before and after treatment were compared. A significant increase was detected in urine pH values measured after treatment (5.31 +/- 0.52 to 7.2 +/- 0.66, p < 0.001), but not in blood pH values (7.369 +/- 0.33 to 7.384 +/- 0.28, p = 0.14). After treatment, a significant decrease was detected in daily frequency, nocturia, urgency, and urge incontinence prevalence (p < 0.001,p = 0.003, p < 0.001, p = 0.002, respectively) and PPBC, PPIUS, PUFSS, and OAB-V8 symptom scores (p = 0.004, p = 0.002, p < 0.001, p < 0.001, respectively). A significant decrease was detected in all KHQ subunit scores. Urine alkalinization with NaHCO3 orally in female patients with LUTS and acidic urine pH has a significant level of positive effects on symptoms and symptom scores. Our results show that this new treatment modality-which is inexpensive, easy to use, and has a low side-effect profile is effective in this chronic patient group.
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    The Role of Acidic Urine on Detrusor Pressure in Patients with Overactive Bladder: A Urodynamic Evaluation
    (Iniestares, S.A., 2022) Ozkent, Mehmet Serkan; Goger, Yunus Emre; Atici, Ahmet; Kilinc, Muzaffer Tansel; Ucmak, Harun; Sonmez, Mehmet Giray
    Objectives: To evaluate the relationship between urine pH value and urodynamic parameters in patients with overactive bladder. Methods: The patients' data whose underwent standard urodynamic study at two tertiary centers in our city. The period between January 2015-January 2021 was reviewed retrospectively. The inclusion criteria were the patients with overactive bladder, over 18 years of age, and with urine analysis before urodynamic study. Patients were divided into two groups as those with acidic urine pH (Group 1) and without (Group 2). The detrusor pressures obtained from filling cystometry were compared between the groups. In addition, the correlation between detrusor pressure and urine pH was examined. Results: The data from 211 patients (109 females, 102 males) were analyzed during the screening period. Eighty-two patients were in Group 1 and 129 patients in Group 2. The mean age was similar between the groups (p = 0.244). The bladder volume at first sensation of filling and urodynamic maximal bladder capacity was lower in Group 1 than Group 2 (p = 0.004; p < 0.001, respectively). The maximum detrusor pressure was higher in the acidic urine pH group (Group 1, 55.8 +/- 20.6) than non-acidic urine pH group (Group 2, 14.5 +/- 10.2), and it was statistically significant (p < 0.001). In addition, a significant negative correla-tion was observed between urine pH level and detrusor pressure (p < 0.001). Conclusions: The presence of acidic urinalysis is associated with many urodynamic findings. Significantly, the patients with de-trusor overactivity had more acidic urine than without detrusor overactivity. Therefore, for patients with high detrusor pressure, urinalysis should be evaluated carefully.