[Show abstract][Hide abstract] ABSTRACT: To evaluate the safety and efficacy of retrograde intrarenal surgery (RIRS) in the treatment of kidney stones greater than 2 cm and to compare its results with those of percutaneous nephrolithotomy (PCNL).
We retrospectively analyzed a total of 143 patients: 86 patients (53 males and 33 females) who underwent PCNL and 57 patients (37 males and 20 females) who underwent RIRS between October 2009 and October 2013.
The mean duration of operation was 100.26±33.26 min in the RIRS group and 75.55±21.5 min in the PCNL group (p<0.001). The hospital stay was significantly shorter in the RIRS group (1.56±0.8 vs. 4.57±2.1 days in the RIRS and PCNL groups, respectively; p<0.001). Stone-free rates after one session were 66.6% and 91.8% of the RIRS and PCNL groups, respectively. The stone-free rate of the RIRS group improved to 87.7% after the second session. Blood transfusions were required in two patients in the PCNL group. Complication rates were higher in the PCNL group.
This study revealed that RIRS can be an alternative to PCNL in the treatment of kidney stones with a diameter of 2-4 cm especially in patients with comorbidities.
[Show abstract][Hide abstract] ABSTRACT: The objective of this study was to determine the prevalence of male pelvic dysfunction (MPD) and its correlation in men ≥40 years of age in a population-based study. This study was designed as a non-interventional, observational, cross-sectional field survey. Participating males of ≥40 years were randomly selected from 19 provinces of Turkey. All participants were asked to complete a survey including data regarding demographics, socio-economic status, socio-cultural factors, medical and sexual history, current medications, comorbidities and three validated questionnaires assessing lower urinary tract symptoms (International Prostate Symptom Score), erectile dysfunction (International Index of Erectile Function) and ejaculatory behaviour (Male Sexual Health Questionnaire-4). MPD was defined by combining abnormal scores calculated from all three questionnaires. All data were analysed statistically and p < 0.05 was accepted as significant. A total of 2730 males of ≥40 years (mean, 54.2 ± 10.6 years) were enrolled in this study. The prevalence of MPD was calculated as 24.4% among all participants. The prevalence of MPD was lowest at age between 40 and 49 years (9.1%) and highest at ≥70 years (76.6%), exhibiting correlation with age. Each decade of increase in age was associated with a 3.4-fold increase in presence of MPD. At logistic regression analyses; age, diabetes, hypertension, dyslipidemia, cardiovascular disease, obesity and lower income were found to be independent predictors for increased prevalence of MPD. This study reports prevalence of MPD as 24.4% in males of ≥40 years. Furthermore, age was found to be the main independent predictor of having MPD.
[Show abstract][Hide abstract] ABSTRACT: To evaluate the early therapeutic alternatives such as bosentan, an endothelin receptor blocker, theophylline, an adenosin receptor blocker, and a nonselective phosphodiesterase enzyme inhibitor, zinc protoporphyrin (ZnPP), a heme oxygenase 1 inhibitor, for the therapy of ischemic priapism in the rat models.
Twenty-four Sprague-Dawley rats were randomly divided into 4 equal groups: control group, ZnPP group, bosentan group, and theophylline group. Erection was provided by vacuum constriction method and maintained for 4 hours for achieving the priapism in all groups. The rats in the control group were administered 1 mL/kg saline intraperitoneally (ip). The rats in group 2 were administered 25 mg/kg ZnPP ip. The rats in group 3 were administered 0.25 mg/kg bosentan ip. The rats in group 4 were administered 100 mg/kg theophylline ip. Six rats from each group were decapitated after 6 hours of drug administration. Then endothelin 1, adenosine deaminase, heme oxygenase 1 enzymatic activity, and apoptosis index in the cavernous tissues were estimated.
Cavernous tissue endothelin 1, adenosine deaminase, heme oxygenase 1 enzymatic activity levels, and apoptosis index were significantly decreased in bosentan, theophylline, and ZnPP-treated rats compared with the controls.
Inhibition of priapism induced apoptosis with bosentan, theophylline, and ZnPP seems promising on preserving erectile function.
[Show abstract][Hide abstract] ABSTRACT: To determine the utility of apparent diffusion coefficient (ADC) values in differentiation of prostate cancer from normal prostate parenchyma and prostatitis we obtained ADC values of 50 patients at b 100, 600 and 1,000 s/mm(2) diffusion gradients. The ADC values of prostate cancer group were significantly lower than normal prostate and prostatitis group at b 600 and 1,000 s/mm(2) gradients. The ADC values at high diffusion gradients may be used in differentiation prostate cancer from normal prostate and prostatitis.
[Show abstract][Hide abstract] ABSTRACT: Objective:
To investigate the contractile characteristics of the seminal vesicles in rats, in which hyperprolactinemia and hypoprolactinemia was induced by prolactin and bromocriptine administration.
Materials and methods:
A total of 24 Wistar albino rats were randomly divided into 3 groups: control group, hyperprolactinemia group, and hypoprolactinemia group. The rats in the control group were administered 0.1 mL saline subcutaneously for 21 days. The rats in group 2 received prolactin 51 μg/kg subcutaneously for 21 days. The rats in the third group received intraperitoneal bromocriptine mesylate at a dose of 66 μg/kg. All the rats were decapitated at 21 days. The seminal vesicles were removed using a microsurgical technique, and the tissue sections were prepared (0.5 × 0.2 cm). These sections were suspended in the organ bath. Subsequently, contractions were induced using 10 μmol acetylcholine or 100 mmol potassium chloride.
The amplitude values induced by potassium chloride in the prolactin group were significantly greater than those in the bromocriptine group or control group. Similarly, the amplitude values induced by acetylcholine were also significantly greater in the prolactin group than in the other 2 groups.
Experimental hyperprolactinemia results in an increase in the smooth muscle contraction and tonus of the seminal vesicles. The alterations in the smooth muscle tonus in the seminal vesicles and genitourinary tract might be involved in the etiology of infertility occurring in hyperprolactinemia.
[Show abstract][Hide abstract] ABSTRACT: Purpose:
In the present study, we aimed to evaluate the sexual function in patients with multiple sclerosis (MS) who were examined in two subgroups and compare the results to the control group with a validated questionnaire.
A total of 23 consecutive female MS patients divided into groups with relapsing-remitting MS (RRMS) and secondary progressive MS (SPMS) and 45 healthy control subjects were included into the study. The inclusion criteria were as follows: Definite MS, age between 18 and 60 years and an Expanded Disability Status Scale (EDSS) score of <8. The neurologic impairment, the disability and the independence of the patient, and cognitive performances were measured, and also the effect of MS is evaluated by EDSS.
No statistically significant difference was found between two groups. FSFI scores in both groups were significantly lower than the control group. Domain scores for desire, arousal, orgasm, pain, lubrication and satisfaction measured between RRMS and SPMS patients showed no significant difference. Comparing each domain score for arousal, orgasm and satisfaction revealed significantly lower scores in RRMS and SPMS patients compared to control group.
In this study, we detected statistically significant decrease in FSFI scores in two groups of MS compared to healthy controls. We could not define a difference in sexual function in different stages of MS in women and a statistically significant negative correlation between EDSS and FSFI scores in the two subgroups of MS.
No preview · Article · Jun 2012 · World Journal of Urology
[Show abstract][Hide abstract] ABSTRACT: In addition to the previously defined "lifelong" and "acquired" premature ejaculation (PE), the existence of two more subtypes of PE, namely "natural variable PE" and "premature-like ejaculatory dysfunction," has been proposed.
To evaluate the diagnostic value of the Premature Ejaculation Diagnostic Tool (PEDT) and Arabic Index of Premature Ejaculation (AIPE) in a population-based study, in relation to their sensitivity across these four different PE syndromes and to assess the Premature Ejaculation Profile (PEP) scores of patients with lifelong, acquired, natural variable PE and premature-like ejaculatory dysfunction.
Between June 2009 and December 2009, couples were randomly selected from 17 provinces of Turkey. Subjects with the complaint of ejaculating prematurely were classified as lifelong, acquired, natural variable PE, and premature-like ejaculatory dysfunction according to the medical and sexual history they described. PE status was also assessed with PEDT, AIPE and PEP. The sensitivity, specificity, positive predictive value and negative predictive value were calculated for PEDT and AIPE in the study population whereas detection rates of these two questionnaires were also compared among the four PE syndromes. Moreover, PEP scores of patients with lifelong, acquired, natural variable PE and premature-like ejaculatory dysfunction were compared. Significance level was considered as P < 0.05.
Scores obtained from PEDT, AIPE, and PEP questionnaires.
A total of 2,593 couples were enrolled where 512 (20.0%) male subjects reported PE. PEDT, AIPE, and PEP measures of the PE patients indicated worse sexual function (P < 0.001 each). Mean scores obtained from questionnaires were significantly better in patients with premature-like ejaculatory dysfunction and they were the worst in patients with acquired PE (P < 0.001 each). The sensitivity values of PEDT and AIPE were 89.3 and 89.5, whereas their specificity values were 50.5 and 39.1, respectively. There were statistically significant differences in detection rates of PEDT and AIPE among the four PE syndromes (P = 0.006 and P < 0.001). They were higher in acquired and lifelong PE and lower in premature-like ejaculatory dysfunction.
PEDT and AIPE can diagnose PE with high sensitivity, especially in patients with lifelong and acquired PE. The complaint of patients with acquired PE seems to be more severe than those complaining of lifelong, natural variable PE and premature-like ejaculatory dysfunction patients.
Full-text · Article · Apr 2011 · Journal of Sexual Medicine
[Show abstract][Hide abstract] ABSTRACT: A 27-year-old male presented to our clinic for evaluation after operation which was made for a malignancy originated from undescended testis. Operation had revealed abdominal mass located right lateral to bladder originated from right testis. There were no additional findings at operation note. Pathology of specimen was mixed germ cell tumor consisting of embryonal carcinoma, yolk sac tumor and seminoma. Radiologic evaluation ultrasonography (US) showed a solid mass posterior to the bladder with a central cystic component and a hypoechoic oval shaped solid structure on the left side of this mass. Between these masses there was a hypoechoic band like structure. Magnetic resonance imaging (MRI) confirmed the presence of these masses. Four years after operation laboratory results revealed increased AFP levels and patient had exploratory laparotomy since a pelvic mass was seen on MRI and positron emission tomography (PET). Histopathologic diagnosis of tumor was embryonal carcinoma.
No preview · Article · Mar 2011 · European Journal of Radiology Extra
[Show abstract][Hide abstract] ABSTRACT: To evaluate the ability and the utility of diffusion-weighted (DW) magnetic resonance imaging (MRI) with high and low b values to visualize benign and malignant renal lesions, and to determine which b value (b=100, 600, or 1000s/mm(2)) was most useful in differentiating benign from malignant renal lesions.
Fifty-eight patients with 67 renal lesions and 50 normal contralateral kidneys (as control) were enrolled in the study. DW imaging was performed with b values of 100, 600, and 1000s/mm(2). Results of the histopathological evaluation were compared with the DW MRI results. Apparent diffusion coefficient (ADC) values, and the sensitivity and specificity for differentiating malignant renal lesions from benign renal lesions were calculated for each b value.
The mean ADC values of normal renal parenchyma with b=100, 600, and 1000s/mm(2) values were (3.14±0.54)×10(-3), (2.52±0.30)×10(-3), and (2.16±0.43)×10(-3)mm(2)/s, respectively. The mean ADC values of benign renal lesions (n=35) with b=100, 600, and 1000s/mm(2) values were (2.88±0.88)×10(-3), (2.58±0.91)×10(-3), and (2.10±0.93)×10(-3)mm(2)/s, respectively. The mean ADC values of malignant renal lesions (n=32) with b=100, 600, and 1000 values were (2.74±0.58)×10(-3), (2.09±0.63)×10(-3), and (1.66±0.51)×10(-3)mm(2)/s, respectively. Using DW imaging malignant renal lesions could be differentiated from benign renal lesions, and also angiomyolipomas and oncocytomas could be differentiated from renal cell carcinoma.
DW MRI with quantitative ADC measurements can be useful in the differentiation of benign and malignant renal lesions. High b values (b=600 and 1000s/mm(2)) had the best specificity and sensitivity.
No preview · Article · Feb 2011 · Clinical Radiology
[Show abstract][Hide abstract] ABSTRACT: Inflammatory pseudotumor of the kidney is a rare benign condition with unknown etiology that can mimic malignancy. We report a case of inflammatory pseudotumor of the kidney. A 59-year-old male patient was admitted with a complaint of right flank pain and hematuria. Ultrasonography and magnetic resonance imaging of the patient revealed a 9 cm × 10 cm mass originating from the renal parenchyma with posterior extension. Operative findings revealed a mass adhering to the psoas muscle. Histopathologic examination demonstrated spindle-shaped fibroblast cells accompanying inflammatory cells. The pathological diagnosis was renal inflammatory pseudotumor. Repeated US and computed tomography revealed complete remission.
No preview · Article · Jan 2011 · Journal of Clinical Imaging Science
[Show abstract][Hide abstract] ABSTRACT: In addition to the previously known lifelong and acquired premature ejaculation (PE) syndromes, the existence of two more PE syndromes has been suggested: natural variable PE and premature-like ejaculatory dysfunction. However, epidemiological studies investigating the prevalence of these four PE syndromes have yet to be conducted.
To determine the prevalence of the complaint of ejaculating prematurely across the four PE syndromes.
This study, conducted between June 2009 and December 2009, was designed as a non-interventional, observational cross-sectional field survey. Participating couples were randomly selected from 17 provinces of Turkey. All participants were asked to complete a questionnaire including data regarding demographics, socioeconomic status, social and cultural factors, medical and sexual history, current medications, and ejaculation time. Subjects with a complaint of ejaculating prematurely were classified as lifelong, acquired, and natural variable PE, or premature-like ejaculatory dysfunction.
The main outcome measures were prevalence of complaint of ejaculating prematurely in the general population and across the four PE syndromes.
A total of 2,593 couples (mean age, 41.9±12.7 years for males and 38.2±12.1 years for females) were enrolled. Five-hundred twelve subjects (20.0%) complained of ejaculating prematurely. Fifty-eight (2.3%), 100 (3.9%), 215 (8.5%), and 131 (5.1%) subjects were classified as lifelong, acquired, and natural variable PE, and premature-like ejaculatory dysfunction, respectively.
The prevalence of the complaint of ejaculating prematurely among Turkish men was 20.0%, with the highest PE syndrome being natural variable PE (8.5%) and premature-like ejaculatory dysfunction (5.1%).
Full-text · Article · Nov 2010 · Journal of Sexual Medicine
[Show abstract][Hide abstract] ABSTRACT: To examine the effects of combined use of trospium chloride and melatonin on in vitro contractility of rat urinary bladder.
Isolated bladder strips from 20 male Wistar rats were examined in an organ bath. Contractions were evoked by acetylcholine (ACh). Initially, effective concentrations of trospium and melatonin to inhibit the contractions were determined. We subsequently tested the effects of combined use of melatonin and trospium on agonist-induced contractions.
Exposure of bladder strips to 10 microM ACh significantly increased the contractions. After cumulative administration of increasing concentrations of trospium (1, 3, and 5 microM), agonist-induced contractions decreased significantly (P <.05). Similarly, the mean peak amplitude of contractions evoked by ACh was significantly inhibited by melatonin in a concentration-dependent manner (100, 200, and 300 microM) (P <.05). Further evaluation of the effects of combined use of trospium and melatonin on ACh-induced contractions of bladder strips revealed that one-tenth of initially applied dose of trospium (500 nM) in addition to the lowest inhibitory dose of melatonin (100 microM) significantly lowered both the peak amplitude and area under the contractility curve of contractions (P <.05).
Our results showed that combined use of low dose trospium and melatonin had strong in vitro inhibitory capability on agonist-induced contractions of rat bladder strips. The present findings may offer an insight into lowering the dose of an antimuscarinic by combining it with an antioxidant and endogenous hormone, melatonin.
[Show abstract][Hide abstract] ABSTRACT: We reviewed records from patients who underwent two different microsurgical varicocelectomy methods: 147 (high inguinal (MHIV) and 65 sub-inguinal (MSIV) microsurgery) to compare the therapeutic activity and complications. Patients who had 2 different microsurgical varicocelectomies were compared according to preoperative connected vein, number of designated arteries, postoperative semen and improvement degree in hormone parameters, increased ratio related with pregnancy and complications. The ratio of improvement of postoperative semen parameters in patients where MHIV and MSIV were performed was, 42% and 38% (p > 0.05). Pregnancy was achieved in MHIV at a ratio of 41% (34/82) and 33% (22/65) in MSIV (p > 0.05). There was no significant difference according to mean operation periods, the vein connected between the groups. The number of testicular arteries were significantly higher than the ones in MHIV (p < 0.01). However, as a postoperative complication, hydrocele was not seen in any of the patients, while relapses occurred in 1 MHIV and 2 MSIV patients. MHIV and MSIV techniques are effective methods to treat varicocele. However, the excess number of connected veins due to the anatomic feature of MSIV increases the possibility of relapses and the technical difficulty during surgical intervention.
No preview · Article · Jul 2009 · Archives of Andrology
[Show abstract][Hide abstract] ABSTRACT: Ejaculatory duct obstruction (EDO) is a rare but surgically correctable cause of male infertility. With the advent and increased use of transrectal ultrasonography and magnetic resonance imaging, abnormalities of the ejaculatory duct (ED) related to infertility have been diagnosed more frequently. Recently, with the increased awareness of functional obstruction of ED, reports have been focusing on the diagnosis of partial or functional EDO. We present 2 review of the ED pathologies, imaging modalities and treatment options.
No preview · Article · Jul 2009 · Archives of Andrology
[Show abstract][Hide abstract] ABSTRACT: Although screw breakage or loosening are rarely encountered, they were reported to occur after instability of the internal fixation.
A man with a history of traumatic pelvic fracture 6 months ago presented to our clinic with inability to void. An anterior urethral meatotomy was made and a calcified but intact screw was removed from the urethra.
Screw migration with urological manifestations are extremely rare and usually include bladder migration with a subsequent voiding of the screw. We present a case in which internal urethrotomy for posterior urethral stricture caused erosion of a bone screw into the urethra which was subsequently removed by anterior meatotomy.
No preview · Article · Nov 2008 · Irish Journal of Medical Science
[Show abstract][Hide abstract] ABSTRACT: To define a novel technique in the diagnosis of partial and complete ejaculatory duct obstruction (EDO).
Twenty men with suspected EDO were initially evaluated by transrectal ultrasound (TRUS). Subsequently, all patients underwent TRUS-guided seminal vesicle (SV) scintigraphy. Technetium Tc 99m sulphur colloid solution was injected into each SV under TRUS guidance and patients were immediately evaluated by scintigraphy. After patients ejaculated scintigraphy was repeated. The difference between 2 measurements in respect to technetium Tc 99m count was used to measure the percentage of emptying.
In the first group, TRUS revealed 11 patients with findings suggestive of EDO, whereas no abnormality was found in 9. Scintigraphic measurement in first group of patients showed a mean emptying ratio for the right and left SVs of 16.6% +/- 2.22 (2.2 to 30.6) and 17.1% +/- 2.34 (1.4 to 32.5), respectively. The mean percent of emptied technetium Tc 99m from right and left SVs in patients with no pathologic findings on TRUS was 30.9% +/- 4.3 (10.1 to 44.2) and 33.9% +/- 5.81 (13.6 to 68.1), respectively. Statistically significant difference was determined between 2 groups (P = 0.037). Initially, TRUS examination revealed no pathologic findings in 3 patients; however, SV scintigraphy showed less than 30% emptying and revealed an additional 33% of patients to be obstructed in our series.
TRUS, the static anatomic imaging modality, may not be sufficient to distinguish functional from complete obstruction. Seminal vesicle scintigraphy is unique that incorporates physiologic aspect of ejaculation into a diagnostic intervention, of which we believe that is especially important in diagnosis of functional EDO.