Person: AKÇAY, MUZAFFER
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- PublicationMetadata onlyAteşli silah yaralanması sonrası rekonstrikte peniste gelişen distal üretral striktürün fibrotik çevre doku ile eksizyonu ( Rekonstrikte penis, parsiyel penektomisi)(2019-10-13T00:00:00Z) GÜRBÜZ, RECAİ; ŞALVARCI, AHMET; KAYALI, YUNUS; AKÇAY, MUZAFFER; AKBULUT, HABİB; DOĞAN, BAYRAM; Gevher, Fatih; İlktaç, Abdullah; KAYALI, YUNUS; AKÇAY, MUZAFFER; AKBULUT, HABİB; DOĞAN, BAYRAM
- PublicationMetadata onlyLAPAROSCOPY ASSISTED MICROPERC IN AN ECTOPIC PELVIC KIDNEY STONE IN A 3 YEAR OLD GIRL(2012-09-01T00:00:00Z) Silay, Mesrur Selcuk; Tepeler, Abdulkadir; Basibuyuk, Ismail; AKÇAY, MUZAFFER; Akman, Tolga; Armagan, Abdullah; AKÇAY, MUZAFFER
- PublicationMetadata onlyComparison of intrarenal pelvic pressure during micro-percutaneous nephrolithotomy and conventional percutaneous nephrolithotomy(2014-06-01T00:00:00Z) TEPELER, Abdulkadir; AKMAN, Tolga; SILAY, Mesrur Selcuk; Akcay, MUZAFFER; Ersoz, CEVPER; Kalkan, SENAD; ARMAGAN, Abdullah; SARICA, Kemal; AKÇAY, MUZAFFER; ERSÖZ, CEVPER; KALKAN, SENADThe micro-percutaneous nephrolithotomy (microperc) is a recently introduced percutaneous nephrolithotomy (PNL) technique that is performed through a 4.8Fr all-seeing needle. We aimed to measure the intrarenal pelvic pressure (IPP) during microperc and compare it with the levels of conventional PNL. A total of 20 patients with 1- to 3-cm renal calculi resistant to shock wave lithotripsy were treated either with microperc (Group-1, n: 10) or conventional PNL (Group-2, n: 10) by the same surgical team. The IPP was measured during different stages (entrance into the collecting system, stone fragmentation, and before termination) of the procedures by an urodynamic machine using the 6Fr ureteral catheter. All the variables were statistically compared between the two groups. The demographic values of the patients were similar. The operation time and duration of hospitalization were significantly prolonged in conventional PNL group (p = 0.034, p = 0.01, respectively). The mean drop in hematocrit levels was significantly lower in microperc group (3.5 +/- A 1.5 vs. 1.8 +/- A 0.8; p = 0.004). The IPP was significantly higher in microperc group during all steps of the procedure. The highest level of the IPP was measured as 30.3 +/- A 3.9 and 20.1 +/- A 3.1 mmHg in Group 1 and Group 2, respectively (p < 0.0001). However, the complication and success rates were found comparable. In conclusion, we demonstrate that the level of IPP is significantly increased during microperc compared to conventional PNL. Microperc should be used cautiously in cases with impaired drainage of the collecting system.
- PublicationOpen AccessCurrent Minimal Invasive Surgery Treatment For Kidney Stones: Bezmialem Experience(2016-08-01T00:00:00Z) AKÇAY, MUZAFFER; Tepeler, Abdulkadir; TOSUN, MUHAMMED; Basibuyuk, Ismail; Elbir, Fatih; KARDAŞ, SİNA; Akman, Tolga; Armagan, Abdullah; Tasci, Ali Ihsan; AKÇAY, MUZAFFER; TOSUN, MUHAMMED; KARDAŞ, SİNAObjective: We aimed to present the outcomes of patients with symptomatic kidney stones treated with percutaneous nephrolithotomy (PNL) or retrograde intrarenal surgery (RIRS).
- PublicationUnknownMICROPERC IN HORSESHOE KIDNEY(2012-09-01T00:00:00Z) Armagan, Abdullah; Tepeler, Abdulkadir; Erdem, Mehmet Remzi; Silay, Mesrur Selcuk; AKÇAY, MUZAFFER; Elbir, Fatih; KARDAŞ, SİNA; Onol, Sinasi Yavuz; AKÇAY, MUZAFFER; KARDAŞ, SİNA
- PublicationUnknownEffects of bipolar and monopolar transurethral resection of the prostate on urinary and erectile function: a prospective randomized comparative study(2013-01-01T00:00:00Z) Akman, Tolga; Binbay, Murat; Tekinarslan, Erdem; Tepeler, Abdulkadir; AKÇAY, MUZAFFER; Ozgor, Faruk; Ugurlu, Mesut; Muslumanoglu, Ahmet; AKÇAY, MUZAFFERObjective
- PublicationUnknownWho Should We Trust in Screening for Lower Urinary Tract Dysfunction in Children: The Parents or the Child?(2013-08-01) SILAY, Mesrur Selcuk; GOKNAR, Nilufer; KILINCASLAN, Huseyin; TEPELER, Abdulkadir; Akcay, MUZAFFER; AKMAN, Tolga; Uysal, Omer; KUCUKKOC, Mehmet; OKTEM, Faruk; ARMAGAN, Abdullah; AKÇAY, MUZAFFER; UYSAL, ÖMEROBJECTIVE To investigate whether the child-s and the parents- reports about lower urinary tract symptoms (LUTS) are reliable and correlate with each other.
- PublicationOpen AccessComparison of Scoring Systems in Predicting Success of Percutaneous Nephrolithotomy(2019-01-01T00:00:00Z) AKÇAY, MUZAFFER; Tosun, Muhammed; GEVHER, FATİH; KALKAN, Senad; ERSÖZ, CEVPER; Kayali, Yunus; Tepeler, Abdulkadir; AKÇAY, MUZAFFER; TOSUN, MUHAMMED; GEVHER, FATİH; KALKAN, SENAD; ERSÖZ, CEVPER; KAYALI, YUNUSBackground: Scoring systems are useful to inform the patients about the success and complication rates of the operation prior the surgery. Aims: To determine the applicability of the popular scoring systems (Guy’s, stone size, tract length, obstruction, number of involved calices, and essence/stone density and Clinical Research Office of the Endourological Society) by means of examining preoperative data of patients treated with percutaneous nephrolithotomy. Study Design: Cross sectional study. Methods: We retrospectively reviewed files of the patients who had undergone percutaneous nephrolithotomy in our center between 2011 and 2015. Excluded from the study were patients aged <18 years, and those who were not assessed preoperatively with computed tomography. Preoperative computed tomography images of all patients were assessed by a single observer, and patients were graded based on three scoring system. Demographic data were analyzed along with perioperative data (operation, fluoroscopy, length of hospital stay, changes in hematocrit values, location, and number of access sites, stone-free and complication rates). Results: A total of 298 patients who had been treated with 300 procedures were enrolled into the study. Mean age, stone burden, number of stones, and density were 48.1±12.9 years, 663.5±442.8 mm2, 1.8±1.1 and 888.3±273 HU respectively. Scores of the cases based on Guy’s, stone size, tract length, obstruction, number of involved calices, and essence/stone density, and Clinical Research Office of the Endourological Society scoring system were calculated as 2, 7.6, and 222.1 points respectively. 81.6% of the patients were stonefree. Complications were detected in 30 (9.9%) patients. Based on receiver operating characteristic curve analysis a positive correlation was detected between success rate and scoring systems, i.e., Guy’s (p=<0.001, r=-0.309), stone size, tract length, obstruction, number of involved calices, and essence/stone density (p=<0.001, r=-0.295), and Clinical Research Office of the Endourological Society (p=<0.001, r=0.426). The Clinical Research Office of the Endourological Society scoring system had the highest predictive value. The sensitivity rates rates for Guy’s, Clinical Research Office of the Endourological Society and Stone scoring system were as 78.78%, 80% and 82.34% respectively. Conclusion: All of scoring systems predicted correctly the success of the percutaneous nephrolithotomy procedures. The Clinical Research Office of the Endourological Society scoring system had the highest predictive value. Keywords: Percutaneous nephrolitotomy, scoring methods, specificity and sensitivity, urinary calculi
- PublicationMetadata onlyThe comparison of laparoscopic pyelolithotomy and percutaneous nephrolithotomy in the treatment of solitary large renal pelvic stones(2012-10-01T00:00:00Z) Tefekli, Ahmet; Tepeler, Abdulkadir; Akman, Tolga; AKÇAY, MUZAFFER; Baykal, Murat; Karadag, Mert Ali; Muslumanoglu, Ahmet Y.; de la Rosette, Jean; AKÇAY, MUZAFFERThe aim of the study is to investigate whether laparoscopic pyelolithotomy (LPL) could find a place in the management of large renal pelvic stones which are generally considered as excellent indications for percutaneous nephrolithotomy (PNL). Between 2006 and 2009, 26 consecutive patients with large (> 4 cm(2)) renal pelvic stones were treated by LPL and their charts were compared to 26 match-paired patients treated with PNL during the same period. The patients were matched for age, BMI, stone size and location as well as presence of congenital anomalies. Perioperative and postoperative findings were compared. The mean age, mean stone size, rate of congenital anomalies, history open renal surgery and shock wave lithotripsy were similar in both groups (p > 0.05). The mean operation time was 138.40 +/- A 51.19 (range 70-240) min in LPL group as compared to 57.92 +/- A 21.12 (range 40-110) min in PNL group (p < 0.0001). There was one (3.8%) open conversion in the LPL group due to dense perirenal adhesions making the dissection difficult. The ureteropelvic junction (UPJ) obstruction concomitant to pelvic stones was successfully repaired laparoscopically in two cases. The mean drop in postoperative hemoglobin level was 0.9 +/- A 0.6 (range 0-2) g/dl in LPL group and 1.7 +/- A 1.1 (range 0-4) g/dl in PNL group (p = 0.024). Hospitalization was significantly shorter in PNL than LPL group (p = 0.0001). Stone-free rates were similar. Laparoscopic pyelolithotomy is associated with a longer operation time, is more invasive, and requires more skills when compared to PNL. However, LPL is associated with less blood loss. Laparoscopic pyelolithotomy is indicated for congenitally anomalous kidneys and especially in patients with concomitant UPJ.
- PublicationMetadata onlyTubularized incised plate urethroplasty with dorsal inlay graft prevents meatal/neourethral stenosis: a single surgeon-s experience(2012-07-01T00:00:00Z) Silay, Mesrur Selcuk; Armagan, Abdullah; Kilincaslan, Huseyin; Erdem, Mehmet Remzi; AKÇAY, MUZAFFER; AKÇAY, MUZAFFER