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1.
Int J Impot Res ; 2024 May 22.
Article in English | MEDLINE | ID: mdl-38778152

ABSTRACT

We aimed to provide evidence on the trends and in-hospital outcomes of patients with low- and high-flow priapism through the largest study in the field. We used the GeRmAn Nationwide inpatient Data (GRAND), provided by the Research Data Center of the Federal Bureau of Statistics (2008-2021), and performed multiple patient-level analyses. We included 6,588 men with low-flow and 729 with high-flow priapism. Among patients with low-flow priapism, 156 (2.4%) suffered from sickle cell disease, and 1,477 (22.4%) patients required shunt surgery. Of them, only 37 (2.5%) received a concomitant penile prosthesis implantation (30 inflatable and 7 semi-rigid prosthesis). In Germany, the total number of patients with low-flow priapism requiring hospital stay has steadily increased, while the number of patients with high-flow priapism requiring hospital stay has decreased in the last years. Among patients with high-flow priapism, 136 (18.7%) required selective artery embolization. In men with low-flow priapism, sickle cell disease was associated with high rates of exchange transfusion (OR: 21, 95% CI: 14-31, p < 0.001). The length of hospital stay (p = 0.06) and the intensive care unit admissions (p = 0.9) did not differ between patients with low-flow priapism due to sickle cell disease versus other causes of low-flow priapism. Accordingly, in men with high-flow priapism, embolization was not associated with worse outcomes in terms of length of hospital stay (p > 0.9), transfusion (p = 0.8), and intensive care unit admission (p = 0.5). Low-flow priapism is an absolute emergency that requires shunt surgery in more than one-fifth of all patients requiring hospital stay. On the contrary, high-flow priapism is still managed, in most cases, conservatively.

2.
Int J Impot Res ; 2023 Nov 18.
Article in English | MEDLINE | ID: mdl-37980375

ABSTRACT

We aimed to assess the recommended annual hospital volume for inflatable penile prosthesis implantation (PPI) and to provide evidence on perioperative outcomes of semi-rigid and inflatable PPI in Germany. We used the GeRmAn Nationwide inpatient Data (GRAND) from 2005 to 2021 and report the largest study to date with 7,222 patients. 6,818 (94.4%) patients underwent inflatable and 404 (5.6%) semi-rigid PPI. Inflatable PPI was significantly associated with shorter length of hospital stay (difference of 2.2 days, 95%CI: 1.6-2.7, p < 0.001), lower odds of perioperative urinary tract infections (5.5% versus 9.2%; OR: 0.58, 95%CI: 0.41-0.84, p = 0.003) and surgical wound infections (1% versus 2.5%; OR: 0.42, 95%CI: 0.22-0.88, p = 0.012) compared to semi-rigid PPI. Overall, 4255 (62.4%) inflatable PPIs were undertaken in low- ( < 20 PPI/year) and 2563 (37.6%) in high-volume ( ≥ 20 PPI/year) centers. High-volume centers were significantly associated with shorter length of hospital stay (difference of 1.4 days, 95%CI: 1.2-1.7, p < 0.001) compared to low-volume centers. Our findings suggest that inflatable PPI leads to a shorter length of hospital stay and lower rates of perioperative urinary tract and surgical wound infections compared to semi-rigid PPI. Patients undergoing surgery in high-volume centers for inflatable PPI are discharged earlier from the hospital.

3.
Transl Androl Urol ; 12(5): 684-689, 2023 May 31.
Article in English | MEDLINE | ID: mdl-37305638

ABSTRACT

Background: It has been speculated for decades whether there is a significance of the adrenal corticosteroid cortisol in the process of male sexual function, including the control of sexual arousal and penile erection. In order to investigate further the role of the adrenocorticotropic axis in the physiological process of penile erection, we aimed to determine the course of cortisol in the cavernous and systemic blood through different stages of sexual arousal in patients suffering from erectile dysfunction (ED) in comparison to a cohort of healthy males. Methods: Fifty-four healthy adult males and 45 patients with ED were presented sexually explicit visual material in order to elicit tumescence and (in the healthy males) rigid erection. Blood was collected from the cavernous space (corpus cavernosum penis, CC) and a cubital vein (CV) at different stages of the sexual arousal cycle as indicated by the penile stages flaccidity, tumescence, rigidity (attained only by the healthy males) and detumescence. Cortisol (µg/dL serum) was measured using a radioimmunometric assay (RIA). Results: In healthy males, cortisol decreased in both the cavernous and systemic blood with the beginning of sexual stimulation (CV: 15 to 13, CC: 16 to 13). At detumescence, in the systemic circulation, no alterations in cortisol levels were registered, whereas it decreased further in the CC (to 12). In the ED patients, no significant changes in cortisol were noticed in the systemic and cavernous blood. Conclusions: The findings indicate that cortisol might act as an antagonist of the normal sexual response cycle of the adult male. A dysregulation of the secretion and/or degradation of the hormone might well play a role in the manifestation of ED.

4.
Andrologia ; 53(1): e13881, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33167067

ABSTRACT

We longitudinally assessed erectile function as well as the willingness to use pro-erectile treatment in a cohort on AAT for advanced RCC. Thirty-seven patients with advanced RCC completed the five-item version of the International Index of Erectile Function (IIEF-5) and other interview items before (T0) and 12 weeks into therapy (T12) with AAT. Patients were further asked if they were willing to use and pay out-of-pocket for on-demand treatment with phosphodiesterase-5-inhibitors (PDE-5i). Statistical analysis was performed using nonparametric hypothesis testing. The IIEF-5 score at T12 was significantly decreased compared with T0 (p < .001). Subjective patient satisfaction regarding their sexual lives was associated with higher IIEF-5 scores at both time points (p = .006 and p = .03, respectively). At T12, subjective sexual contentment showed a nonsignificant trend towards decline (p = .074). Patients who opted for medical treatment of ED showed significantly better IIEF-5 scores at both time points compared with the rest of the cohort (p < .001 and p = .005, respectively). In summary, AAT seems to have a negative effect on erectile function in RCC patients, however, the role of psychosocial issues warrants further elucidation. Affected patients may benefit from a proactive approach promoting medical treatment of erectile dysfunction during AAT.


Subject(s)
Carcinoma, Renal Cell , Erectile Dysfunction , Kidney Neoplasms , Carcinoma, Renal Cell/drug therapy , Erectile Dysfunction/drug therapy , Humans , Kidney Neoplasms/drug therapy , Male , Penile Erection , Phosphodiesterase 5 Inhibitors/therapeutic use , Surveys and Questionnaires
5.
J Clin Med ; 9(9)2020 Sep 16.
Article in English | MEDLINE | ID: mdl-32947804

ABSTRACT

It is widely accepted that disorders of the male (uro)genital tract, such as erectile dysfunction (ED) and benign diseases of the prostate (lower urinary tract symptomatology or benign prostatic hyperplasia), can be approached therapeutically by influencing the function of both the vascular and non-vascular smooth muscle of the penile erectile tissue or the transition zone/periurethral region of the prostate, respectively. As a result of the discovery of nitric oxide (NO) and cyclic guanosine monophosphate (GMP) as central mediators of penile smooth muscle relaxation, the use of drugs known to increase the local production of NO and/or elevate the intracellular level of the second messenger cyclic GMP have attracted broad attention in the treatment of ED of various etiologies. Specifically, the introduction of vasoactive drugs, including orally active inhibitors of the cyclic GMP-specific phosphodiesterase (PDE) 5, has offered great advantage in the pharmacotherapy of ED and other diseases of the genitourinary tract. These drugs have been proven efficacious with a fast on-set of action and an improved profile of side-effects. This review summarizes current strategies for the treatment of ED utilizing the application of vasoactive drugs via the oral, transurethral, topical, or self-injection route.

6.
Andrologia ; 51(1): e13150, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30251438

ABSTRACT

Studies on erectile dysfunction (ED) have revealed a relationship between smooth muscle atrophy and the accumulation of collagen in the corpus cavernosum (CC). Transforming growth factor ß1 (TGF ß1) is a cytokine which has been proposed to be involved in the fibrotic process in the CC. We aimed to evaluate the course of TGF ß1 in the systemic and cavernous blood of 17 healthy males through different phases of the sexual arousal response (exemplified by the penile conditions flaccidity, tumescence, rigidity and detumescence). An enzyme-linked immunoassay was used to measure the concentration of TGF ß1 (ng/ml) in both the systemic and cavernous blood at the stages of flaccidity, tumescence and detumescence. TGF levels were significantly higher in the cavernous compartment than in the systemic blood. A linear decrease was evident in the cavernous blood when the flaccid penis became tumescent (24.3 ± 14.5 to 13.9 ± 6.5) and rigid (to 8.7 ± 3.1). At detumescence, TGF increased to 18.3 ± 10.4. In contrast, the levels in the systemic circulation remained unchanged. The results are in support of the hypothesis that the concentration of TGF ß1 in the CC is regulated by adequate blood flow and oxygenation.


Subject(s)
Erectile Dysfunction/blood , Penile Erection/physiology , Penis/blood supply , Transforming Growth Factor beta1/blood , Adult , Humans , Male , Reference Values , Young Adult
7.
Andrologia ; 50(7): e13049, 2018 Sep.
Article in English | MEDLINE | ID: mdl-29781087

ABSTRACT

It has been assumed that ß-endorphin, belonging to the family of opiodergic neuropeptides, might facilitate the inhibition of the male sexual response; however, its role in the control of the penile erectile tissue remains to be elucidated. This study aimed to evaluate in healthy men the course of ß-endorphin in the systemic and cavernous blood through different stages of sexual arousal. Thirty-four (34) men were exposed to erotic stimuli to induce penile tumescence and rigidity. Blood was aspirated from the corpus cavernosum and a cubital vein during the penile conditions flaccidity, tumescence, rigidity and detumescence. Plasma levels of ß-endorphin were determined by means of radioimmunometric methods. The effects of ß-endorphin on isolated human penile erectile tissue were investigated in vitro. ß-endorphin did not induce a contractile response of the cavernous tissue or reverse the contraction induced by noradrenaline. ß-endorphin decreased in the systemic blood when the penis became tumescent and rigid and increased during detumescence. In the cavernous blood, no alterations in ß-endorphin concentrations were observed. The drop in ß-endorphin observed during tumescence and rigidity seems likely to reflect the inhibition of the opioidergic input with the beginning of sexual arousal.


Subject(s)
Arousal/physiology , Penile Erection/physiology , Sexual Behavior/physiology , beta-Endorphin/physiology , Adult , Female , Humans , Male , Norepinephrine/pharmacology , Penis/drug effects , Transgender Persons , beta-Endorphin/blood
8.
World J Surg ; 42(11): 3599-3607, 2018 11.
Article in English | MEDLINE | ID: mdl-29845381

ABSTRACT

BACKGROUND: Robotic systems introduced new surgical and technical demands. Surgical flow disruptions are critical for maintaining operating room (OR) teamwork and patient safety. Specifically for robotic surgery, effects of intra-operative disruptive events for OR professionals' workload, stress, and performance have not been investigated yet. This study aimed to identify flow disruptions and assess their association with mental workload and performance during robotic-assisted surgery. METHODS: Structured expert-observations to identify different disruption types during 40 robotic-assisted radical prostatectomies were conducted. Additionally, 216 postoperative reports on mental workload (mental demands, situational stress, and distractions) and performance of all OR professionals were collected. RESULTS: On average 15.8 flow disruptions per hour were observed with the highest rate after abdominal insufflation and before console time. People entering the OR caused most flow disruptions. Disruptions due to equipment showed the highest severity of interruption. Workload significantly correlated with severity of disruptions due to coordination and communication. CONCLUSIONS: Flow disruptions occur frequently and are associated with increased workload. Therefore, strategies are needed to manage disruptions to maintain OR teamwork and safety during robotic-assisted surgery.


Subject(s)
Prostatectomy , Robotic Surgical Procedures , Workload , Aged , Communication , Humans , Male , Operating Rooms , Patient Safety , Stress, Psychological/etiology
9.
Pharmacoepidemiol Drug Saf ; 25(6): 668-77, 2016 06.
Article in English | MEDLINE | ID: mdl-26932728

ABSTRACT

PURPOSE: Male infertility is a multifactorial state. Among other risk factors, drugs can adversely affect male fertility and male sexual function. In a retrospective study we aimed to analyse how many involuntarily childless men seeking fertility evaluation consume drugs, which drugs and if these are potentially affecting male reproductive function. METHODS: We retrospectively identified involuntarily childless men presenting for fertility evaluation at an andrologic outpatient department from 2011 to 2014. Medical records were searched for current drug use, age, diseases affecting male fertility, and number and kind of drugs. Drugs were classified according to their Anatomical Therapeutic Chemical code. Adverse drug reactions on male sexual function and fertility were searched in two independent literature sources. RESULTS: Drug use was documented for 244 of 522 patients (46.7%). The patients' mean age was 37.7 ± 8.7; the total number of drug intakes was 554 (mean 2.3 ± 1.9), corresponding to 201 different drugs. The most often involved Anatomical Therapeutic Chemical groups were nervous system (N), alimentary tract/metabolism (A), cardiovascular (C), and respiratory system (R) (n = 277; 50.0%). Fertility impairment was reported for 15.9%, and adverse drug reactions on male sexual function were found for 51.2% of all identified drugs. Underreporting of consumed drugs was likely, especially for non-prescription drugs. CONCLUSIONS: A high percentage of involuntarily childless men is taking drugs that can potentially influence male reproductive function. As drug intake represents a modifiable risk factor, fertility evaluation requires a comprehensive medication review including prescription and non-prescription drugs. Copyright © 2016 John Wiley & Sons, Ltd.


Subject(s)
Fertility/drug effects , Infertility, Male/epidemiology , Nonprescription Drugs/administration & dosage , Prescription Drugs/administration & dosage , Adult , Drug-Related Side Effects and Adverse Reactions/complications , Drug-Related Side Effects and Adverse Reactions/epidemiology , Humans , Infertility, Male/chemically induced , Infertility, Male/etiology , Male , Middle Aged , Nonprescription Drugs/adverse effects , Prescription Drugs/adverse effects , Retrospective Studies , Risk Factors , Young Adult
10.
Lasers Med Sci ; 31(1): 57-65, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26519156

ABSTRACT

The aim of this study was to assess the potential of probe-based confocal laser endomicroscopy (pCLE) as a new diagnostic imaging technique for the male genital tract. For this purpose, testes, epididymides, and vasa deferentia were obtained during transsexual surgery of healthy patients (n = 10, 26-52 years). Prior to this, testes of rats (n = 10, Sprague-Dawley) and mice (n = 8, wild-type) were examined. Ex vivo tissues were investigated by pCLE after topical fluorescence staining. Images and pCLE real-time video sequences were compared to images acquired by confocal laser scanning microscopy (CLSM); this allowed the identifying of corresponding microstructures. Interestingly, the seminiferous tubules of transsexual humans contained mainly spermatogonia due to long-term estrogen treatment, whereas the seminiferous tubules of the murine and rat spermatogenesis-related cell types were differentiated. Mosaicking improved the inspection potential by wide-angle views. Similarly, the microarchitecture of the epididymis and the vas deferens was successfully visualized in situ and on a cellular level by pCLE. In summary, pCLE allows for real-time identification of relevant microstructures responsible for spermatogenesis under ex vivo conditions. Additionally, pCLE enabled to localize vital spermatozoa in the testis thus opening up new ways to improve sperm retrieval rates during assisted reproduction. Both clinically relevant experiences hold promise to introduce this diagnostic method into a clinical study, and to investigate its potential as a clinical diagnostic procedure to expedite and improve the medical situation.


Subject(s)
Genitalia, Male/cytology , Microscopy, Confocal/methods , Adult , Animals , Genitalia, Male/physiology , Humans , Male , Mice , Middle Aged , Rats , Rats, Sprague-Dawley
11.
Surg Endosc ; 30(9): 4124-9, 2016 09.
Article in English | MEDLINE | ID: mdl-26675936

ABSTRACT

OBJECTIVES: To describe an innovative laparoscopic/robotic-assisted re-pyeloplasty technique in patients with recurrent ureteropelvic junction obstruction (UPJO) in horseshoe kidneys. PATIENTS AND METHODS: Data from five patients (37-65, median 54 years) with symptomatic recurrence of UPJO in horseshoe kidney who underwent laparoscopic/robotic-assisted re-pyeloplasty at our institution since 2004 were evaluated retrospectively. The upper ureter together with wedge resection of the pelvis at the lower calyx was performed. The ureter is spatulated till beyond the isthmus and anastomosed to lower calyx. Rotational renal pelvis flap is used for reconstruction and conisation of the pelvis. RESULTS: Median operative time was 137 min (92-180) with a negligible blood loss. There was no need for conversion or revisions. Perioperative periods were uneventful. The intraoperatively inserted JJ was left for 6-8 weeks. Median postoperative differential function of affected kidney at 3 months (MAG III) was 38 % (26-42 %), unchanged from 35 % (21-41 %), preoperatively. This was stable in three patients and higher in two (5 and 7 %). There were no obstructive elements indicating anatomical ureteric obstruction. After convalescence period, three patients recurred to their work at 5 weeks, while all at 8 weeks. All patients remained asymptomatic and have not required any further interventions during whole follow-up. CONCLUSIONS: Described technique of laparoscopic/robotic-assisted re-pyeloplasty in horseshoe kidneys is technically feasible, safe and effective with high patient satisfaction and early convalescence. Its success rate is comparable with the results after primary pyeloplasty in horseshoe and heterotopic kidneys. Larger series may be required to allow for more accurate comparison.


Subject(s)
Fused Kidney/complications , Kidney Pelvis/surgery , Robotic Surgical Procedures/methods , Ureteral Obstruction/surgery , Urologic Surgical Procedures/methods , Adult , Aged , Female , Humans , Kidney Pelvis/diagnostic imaging , Laparoscopy/methods , Male , Middle Aged , Operative Time , Patient Satisfaction , Postoperative Period , Plastic Surgery Procedures/methods , Recurrence , Retrospective Studies , Surgical Flaps , Treatment Outcome , Ureter/diagnostic imaging , Ureter/surgery , Ureteral Obstruction/complications , Ureteral Obstruction/diagnostic imaging , Urography
12.
World J Urol ; 33(8): 1143-9, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25312682

ABSTRACT

PURPOSE: To evaluate the impact of the retrourethral transobturator sling (RTS) on pelvic floor muscle function (PFMF) and whether preoperative PFMF is associated with RTS outcome. METHODS: Between May 2008 and December 2010, 59 consecutive men with postprostatectomy stress urinary incontinence (PSUI) underwent PFMF assessment before RTS and 6 months thereafter in a prospective cohort study. The assessments included demographic and clinical characteristics, and quality of life (QoL) questionnaires. PFMF was evaluated by digital rectal examination on the modified 6-point Oxford scale and by surface electromyography. The primary outcome measurement was success after RTS defined as PSUI cure with use of no or one dry "security" pad. For secondary outcome, PFMF, 1-h pad test, and impact of PSUI on QoL were evaluated. Uni- and multivariate analyses were performed. RESULTS: After 6-month follow-up, the cure, improvement (>50 % pad reduction) and failure rates were 50 % (29/58 patients), 24 % (14/58 patients) and 26 % (15/58 patients), respectively. Significant improvement of QoL, clinical and PFMF parameters occurred after RTS. On multivariate analysis, weak PFMF (OR 86.29) and greater muscle fatigue (OR 3.31) were significant independent predictors of RTS failure. The final model demonstrated good calibration (p = 0.882) and excellent discriminative ability (0.942, 95 % CI 0.883-1.0) to predict success after RTS. CONCLUSIONS: PFMF improved significantly after RTS procedure. Higher muscle fatigue and weak PFMF were independent predictors of RTS failure. Digital rectal evaluation of PFMF is a simple and reliable clinical tool, which can be used by urologists in daily routine to predict the RTS outcome.


Subject(s)
Muscle Fatigue , Pelvic Floor/physiopathology , Postoperative Complications/surgery , Prostatectomy , Quality of Life , Suburethral Slings , Urinary Incontinence, Stress/surgery , Aged , Cohort Studies , Digital Rectal Examination , Electromyography , Humans , Male , Middle Aged , Postoperative Complications/physiopathology , Prospective Studies , Treatment Outcome , Urinary Incontinence, Stress/physiopathology
13.
Int Urol Nephrol ; 47(2): 249-55, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25537826

ABSTRACT

PURPOSE: To evaluate the outcome of the retrourethral transobturator sling (RTS) by functional magnetic resonance imaging (MRI) and to identify parameters associated with sling failure. METHODS: Of thirty recruited men with postprostatectomy stress urinary incontinence (SUI), 26 consecutively underwent functional MRI before sling procedure and 12 months thereafter in a prospective clinical cohort observational study. Periurethral/urethral fibrosis and sling visualization were evaluated on static sequences. The angle of the membranous urethra, position of the bladder neck and external urethral sphincter were assessed during Valsalva's maneuver and voiding. Sling success was defined as no or one dry "security" pad. RESULTS: The success and failure rates were 58 % (15/26 patients) and 42 % (11/26 patients), respectively. The sling leads to reduction in the membranous urethra angle during Valsalva's maneuver (39.55° vs. 36.82°, p = 0.025) and voiding (38.25° vs. 34.83°, p = 0.001) and elevation of the external urethral sphincter (2.9 vs. 4.8 mm, p = 0.017). Preoperative wider angle of the membranous urethra was significantly correlated with severe preoperative incontinence. Sling failure (p = 0.001) and severe preoperative incontinence (p = 0.001) were significantly related to only small changes of the membranous urethra angle. The interrater and intrarater reliability for membranous urethra angle was excellent (intraclass correlation coefficient ≥0.75). CONCLUSIONS: The RTS leads to reduction in the membranous urethra angle. The extent of the changes in the membranous urethra angle is associated with RTS outcome. Functional MRI is a reliable noninvasive visualization tool of interactions between the sling and pelvic floor for further research on the complex nature of postprostatectomy SUI.


Subject(s)
Suburethral Slings , Urethra/pathology , Urinary Incontinence, Stress/surgery , Aged , Fibrosis/diagnosis , Humans , Magnetic Resonance Imaging , Male , Postoperative Period , Preoperative Period , Prospective Studies , Prostatectomy/adverse effects , Treatment Failure , Urinary Bladder/pathology , Urinary Incontinence, Stress/etiology , Urination , Valsalva Maneuver
14.
World J Urol ; 33(3): 301-7, 2015 Mar.
Article in English | MEDLINE | ID: mdl-24752607

ABSTRACT

OBJECTIVES: To report effect of different nerve sparing techniques (NS) during radical prostatectomy (RP) (intrafascial-RP vs. interfascial-RP) on post-RP incontinence outcomes (UI) in impotent/erectile dysfunction (ED) men. PATIENTS AND METHODS: A total of 420 impotent/ED patients (International Index of Erectile Function-score <15) with organ-confined prostate cancer were treated with bilateral-NS [intrafascial-RP (239) or interfascial-RP (181)] in our institution. Intrafascial-RP was indicated for biopsy Gleason score ≤6 and PSA ≤10 ng/ml while interfascial-RP for Gleason score ≤7 and higher serum PSA. Seventy-seven patients with bilateral non-NS-RP were taken for comparison. No patient received pre-/postoperative radiation/hormonal therapy or had prostatic enlargement surgery. UI was assessed 3, 12 and 36 months postoperatively by third party. Continence was defined as no pads/day, safety 1 pad/day as separate group, 1-2 pads/day as "mild-incontinence" and >2 pads/day as "incontinence". RESULTS: All groups had comparable perioperative criteria without significant preoperative morbidities. International Prostate Symptom Score showed severe symptoms in 5 % of patients without correlation to UI. UI-recovery increased until 36 months. Full continence was reported from 56 versus 62 and 53 % patients after intrafascial-RP versus interfascial-RP and wide excision at 3 months, respectively (p = 0.521). Corresponding figures at 12 months were 70 versus 61 versus 51 % (p = 0.114) and at 36 months 85 versus 75 versus 65 % (p = 0.135), respectively. After 12 and 36 months, there was tendency to better UI-results in advantage of NS-technique; best results were achieved in intrafascial-RP group. UI-recovery was age-dependant. Advantage was found in NS-group compared with non-NS-group in older patients (>70 years, p = 0.052). CONCLUSIONS: Impotent/ED patients have higher chances of recovering full continence after NS-RP. NS should be planned independently of preoperative potencystatus whenever technically and oncologically feasible. Age and lower urinary symptoms are not restrictions. Current data should be considered in preoperative patient counselling.


Subject(s)
Erectile Dysfunction/epidemiology , Organ Sparing Treatments/methods , Prostate/innervation , Prostate/surgery , Prostatectomy/methods , Prostatic Neoplasms/surgery , Urinary Incontinence/epidemiology , Aged , Aged, 80 and over , Biopsy , Follow-Up Studies , Humans , Incidence , Male , Middle Aged , Neoplasm Grading , Postoperative Period , Prostate/pathology , Recovery of Function , Risk Factors , Treatment Outcome
15.
J Biophotonics ; 8(5): 415-21, 2015 May.
Article in English | MEDLINE | ID: mdl-24995398

ABSTRACT

In azoospermic patients, spermatozoa are routinely obtained by testicular sperm extraction (TESE). However, success rates of this technique are moderate, because the site of excision of testicular tissue is determined arbitrarily. Therefore the aim of this study was to establish probe-based laser endomicroscopy (pCLE) a noval biomedical imaging technique, which provides the opportunity of non-invasive, real-time visualisation of tissue at histological resolution. Using pCLE we clearly visualized longitudinal and horizontal views of the tubuli seminiferi contorti and localized vital spermatozoa. Obtained images and real-time videos were subsequently compared with confocal laser scanning microscopy (CLSM) of spermatozoa and tissues, respectively. Comparative visualization of single native Confocal laser scanning microscopy (CLSM, left) and probe-based laser endomicroscopy (pCLE, right) using Pro Flex(TM) UltraMini O after staining with acriflavine.


Subject(s)
Lasers , Molecular Imaging/methods , Spermatozoa/cytology , Adult , Ejaculation , Feasibility Studies , Humans , Male , Middle Aged , Molecular Imaging/instrumentation , Optical Fibers , Testis/cytology
16.
Springerplus ; 3: 335, 2014.
Article in English | MEDLINE | ID: mdl-25032093

ABSTRACT

Current work provides a prospective direct comparison between Open complete intrafascial-radical-prostatectomy (OIF-RP) and interfascial-RP in all outcomes in single centre series. Both techniques were done prospectively in 430 patients. Inclusion criteria for OIF-RP (n=241 patients) were biopsy Gleason-score ≤6 and PSA ≤10 ng/ml while for interfascial-RP (n=189) were Gleason-score ≤7 and PSA ≤15. The perioperative parameters (e.g. operative time, complications etc.), pathologic results, surgical margins and revisions were reviewed. Pre- and postoperative (3 and 12 months) evaluation of continence and potency was performed. All patients have preoperative IIEF-score of ≥15. Continence was classified as complete (no pads), mild (1-2 pads/day) and incontinence (>2 pads/day). Median patients' age was 63.7 vs. 64.5 years for OIF-RP vs. Interfascial-RP, respectively. Preoperative PSA-level was significantly lower in OIF-RP (5.8 vs. 7.1), otherwise, similar perioperative data in both groups except for more frequent pT3-tumors in interfascial-RP group (18%). No statistical significance regarding continence was observed between OIF-RP vs. Interfascial-RP groups at 3 (82% vs. 85%) and 12 months (98% vs. 96%) postoperatively. Potency rates (IIEF ≥15) after OIF-RP were 96% (≤55 years), 72% (55-65), and 75% (>65 years) at 12 months. The respective rates for interfascial-group were 58%, 61% and 51%. There was an advantage for OIF-RP potency-outcomes without significance over Interfascial-RP in weak potency patients (IIEF=15-18). We conclude that OIF-RP is associated with better functional results without compromising early oncological results compared to interfascial-RP. Complete preservation of periprostatic fasciae provides significantly better postoperative recovery of sexual function even for weak potency patients. Longer follow-up is mandatory to further evaluate the outcome results of this technique.

17.
World J Urol ; 32(6): 1375-83, 2014 Dec.
Article in English | MEDLINE | ID: mdl-24452450

ABSTRACT

PURPOSE: To investigate whether differences in the anatomy and dynamics of the pelvic floor (PF) in patients after radical prostatectomy (RP) depicted on magnetic resonance imaging (MRI) are associated with continence status. METHODS: In the prospective designed study, 24 patients with post-prostatectomy stress urinary incontinence were enrolled. Additionally, 10 continent patients after RP were matched for age, body mass index and perioperative parameters. All patients underwent continence assessment and MRI (TrueFISP sequence; TR 4.57 ms; TE 2.29 ms; slice thickness 7 mm; FOV 270 mm) 12 months after RP. Images were analyzed for membranous urethra length (MUL), angle of the membranous urethra (AMU), severity of periurethral/urethral fibrosis, lifting of the levator ani muscle, lowering of the posterior bladder wall (BPW), bladder neck (BN) and external urinary sphincter (EUS), and symphyseal rotation of these structures during the Valsalva maneuver and voiding. RESULTS: Compared to continent controls, incontinent patients showed a significant wider AMU during voiding (p = 0.002) and more pronounced lowering of the BN and EUS (p < 0.001). No differences between the groups were found in symphyseal rotation of the analyzed structures, MUL and severity of periurethral/urethral fibrosis. CONCLUSIONS: The angle of the membranous urethra as a result of anchoring of the BN and EUS in the PF appears to be an important functional factor with an essential impact on continence after RP. Functional MRI seems to be a helpful imaging tool for morphologic and dynamic evaluation of the PF.


Subject(s)
Pelvic Floor/pathology , Prostatectomy/adverse effects , Prostatic Neoplasms/surgery , Urethra/pathology , Urinary Bladder/pathology , Urinary Incontinence, Stress/pathology , Aged , Case-Control Studies , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Pelvic Floor/physiopathology , Prospective Studies , Prostatic Neoplasms/pathology , Urinary Bladder/physiopathology , Urinary Incontinence, Stress/etiology
18.
Urol Int ; 92(1): 74-82, 2014.
Article in English | MEDLINE | ID: mdl-24051903

ABSTRACT

PURPOSE: To report postoperative health-related quality of life (HRQoL) and patients' subjective evaluations of open pyeloplasty (OP) and retroperitoneoscopic pyeloplasty (RP) and influences on preoperative counselling. METHODS: 107 patients (age 16-80 years, mean 31.5) with symptomatic primary ureteropelvic junction obstruction who underwent OP (32) or RP (75) were evaluated prospectively. HRQoL was evaluated using Short Form 36 (SF-36) questionnaires with 1 year follow-up. Operative outcomes were evaluated using a self-designed questionnaire regarding cosmetic outcomes, objective postoperative/current pain, convalescence and return to work. RESULTS: The mean operative time was 174.4 vs. 161.4 min for RP versus OP, respectively, without intraoperative complications/conversions. There was an advantage for RP--except for two domains--without significance in any of the eight SF-36 domain scores. An advantage favouring RP in all aspects of the second questionnaire with significance in four aspects (cosmetic results, scar length, pain and convalescence) was found. Five weeks postoperatively, 58.7% (RP) vs. 25.8% (OP) were fully convalescent compared to 87.0% (RP) vs. 71.0% (OP) at 8 weeks. Similarly, 58.7 vs. 45.1% returned work 5 weeks postoperatively while 93.5 vs. 74.2% did so after 8 weeks, respectively. The small sample size, more questions on satisfaction/regret and mixed design are the main study limitations. CONCLUSION: RP provides the same functional results beside earlier convalescence, better HRQoL and patients' convenience with surgery, which favours its inclusion in preoperative counselling providing patients with realistic postoperative expectations.


Subject(s)
Endoscopy/methods , Patients/psychology , Perception , Plastic Surgery Procedures/methods , Quality of Life , Ureteral Obstruction/surgery , Adolescent , Adult , Aged , Aged, 80 and over , Cicatrix/etiology , Endoscopy/adverse effects , Female , Humans , Male , Middle Aged , Pain, Postoperative/etiology , Patient Satisfaction , Prospective Studies , Plastic Surgery Procedures/adverse effects , Retroperitoneal Space/surgery , Return to Work , Surveys and Questionnaires , Time Factors , Treatment Outcome , Ureteral Obstruction/physiopathology , Young Adult
19.
World J Urol ; 31(3): 629-38, 2013 Jun.
Article in English | MEDLINE | ID: mdl-22710486

ABSTRACT

PURPOSE: We prospectively evaluated changes in morphology and dynamics of the male pelvic floor on magnetic resonance imaging (MRI) associated with retrourethral transobturator sling (RTS) placement. PATIENTS AND METHODS: Twenty-six men with post-prostatectomy incontinence consecutively underwent functional cine-MRI before and 12 months after RTS. The membranous urethra length (MUL) and severity of periurethral/urethral fibrosis were assessed on static MRI. A lowering of the posterior bladder wall (BPW), the bladder neck (BN), the external urinary sphincter (EUS) and symphysial rotation of these structures were analysed on dynamic MR images. The success rate was defined as cure (0-1 dry 'security' pad) or improvement (pad reduction ≥ 50 %). RESULTS: The success rate was 77 % (20/26 patients). The mean follow-up was 20.4 months. The MUL significantly increased post-operatively (p < 0.001). There were no significant pre- and post-operative differences in severity of periurethral/urethral fibrosis. Significant elevation of the BPW (p < 0.021), BN and EUS (p < 0.002) was observed post-operatively. The RTS failure was significantly associated with the severity of periurethral fibrosis pre- (p < 0.032) and post-operatively (p < 0.003). CONCLUSIONS: RTS placement is associated with MUL increase, elevation of the BN, BPW and EUS. De novo development of periurethral or urethral fibrosis seems not to be confirmed. The RTS failure was related to the severity of pre- and post-operative periurethral fibrosis. The impact of MRI on pre-operative diagnostics of RTS failure needs further evaluation.


Subject(s)
Pelvic Floor/pathology , Pelvic Floor/physiopathology , Suburethral Slings , Urinary Incontinence/surgery , Urologic Surgical Procedures, Male/methods , Aged , Fibrosis , Follow-Up Studies , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Prostatectomy/adverse effects , Reproducibility of Results , Retrospective Studies , Treatment Outcome , Urethra/pathology , Urinary Bladder/pathology , Urinary Incontinence/etiology
20.
Urol Oncol ; 31(7): 1006-11, 2013 Oct.
Article in English | MEDLINE | ID: mdl-22100069

ABSTRACT

INTRODUCTION: Radical prostatectomy (RP) is curative for localized prostatic cancer. Incontinence after RP (P-RP-I) varies widely (2% to <60%) according to the definition and quantification of incontinence, timing of evaluation, and who evaluates (physician or patient). Conservative treatments, including pelvic floor muscle training (PFMT), anal electrical stimulation (AES), lifestyle adjustment, or combination are usually recommended at first for P-RP-I. METHODS: Between January 2002 and December 2004, a total of 911 patients, median age 63 years (46-78), with different grades of P-RP-I have been retrospectively examined for perioperative risk factors and effect of rehabilitation procedures. These consecutive patients were from 67 clinics with median postoperative interval of 26 days. Incontinence was graded by Stamey classification, number of used pads and pads' consistency (dry, lightly wet, and wet). Therapeutic measures were done by team of specialists in rehabilitation, psycho-oncology, physiotherapy, internal medicine, and urology. RESULTS: Ninety-six percent of patients suffered different grades of incontinence at beginning of hospitalization. This was reported as Stamey first grade (49.4%), second grade (36.4%), and third grade (10.3%). Analysis included patients' age, body mass index (BMI), prostate volume, surgical approach, nerve sparing, pelvic lymphadenectomy, previous therapy, and catheterization time. Analysis showed age, nerve sparing, and BMI as significant risk factors for P-RP-I. Conservative therapy, including PFMT, AES, or combinations has been performed on all patients. Grade of P-RP-I showed significant improvement after 3 weeks rehabilitation period. CONCLUSION: Preoperative counseling of patients should provide them with realistic expectations for P-RP-I and motivate them to conservative therapy, as it reduces the duration and degree of urinary incontinence.


Subject(s)
Prostatectomy/methods , Prostatic Neoplasms/surgery , Urinary Incontinence/rehabilitation , Age Factors , Aged , Analysis of Variance , Body Mass Index , Counseling/methods , Data Collection/methods , Data Collection/statistics & numerical data , Humans , Male , Middle Aged , Preoperative Care/methods , Prostatectomy/adverse effects , Prostatic Neoplasms/complications , Retrospective Studies , Risk Factors , Time Factors , Urinary Incontinence/diagnosis , Urinary Incontinence/etiology
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