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1.
Int J Impot Res ; 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38778152

RESUMO

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.
Artigo em Inglês | MEDLINE | ID: mdl-37980375

RESUMO

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.
Andrologia ; 53(1): e13881, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33167067

RESUMO

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.


Assuntos
Carcinoma de Células Renais , Disfunção Erétil , Neoplasias Renais , Carcinoma de Células Renais/tratamento farmacológico , Disfunção Erétil/tratamento farmacológico , Humanos , Neoplasias Renais/tratamento farmacológico , Masculino , Ereção Peniana , Inibidores da Fosfodiesterase 5/uso terapêutico , Inquéritos e Questionários
4.
J Clin Med ; 9(9)2020 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-32947804

RESUMO

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.

5.
World J Surg ; 42(11): 3599-3607, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29845381

RESUMO

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.


Assuntos
Prostatectomia , Procedimentos Cirúrgicos Robóticos , Carga de Trabalho , Idoso , Comunicação , Humanos , Masculino , Salas Cirúrgicas , Segurança do Paciente , Estresse Psicológico/etiologia
6.
Lasers Med Sci ; 31(1): 57-65, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26519156

RESUMO

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.


Assuntos
Genitália Masculina/citologia , Microscopia Confocal/métodos , Adulto , Animais , Genitália Masculina/fisiologia , Humanos , Masculino , Camundongos , Pessoa de Meia-Idade , Ratos , Ratos Sprague-Dawley
7.
Surg Endosc ; 30(9): 4124-9, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26675936

RESUMO

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.


Assuntos
Rim Fundido/complicações , Pelve Renal/cirurgia , Procedimentos Cirúrgicos Robóticos/métodos , Obstrução Ureteral/cirurgia , Procedimentos Cirúrgicos Urológicos/métodos , Adulto , Idoso , Feminino , Humanos , Pelve Renal/diagnóstico por imagem , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Satisfação do Paciente , Período Pós-Operatório , Procedimentos de Cirurgia Plástica/métodos , Recidiva , Estudos Retrospectivos , Retalhos Cirúrgicos , Resultado do Tratamento , Ureter/diagnóstico por imagem , Ureter/cirurgia , Obstrução Ureteral/complicações , Obstrução Ureteral/diagnóstico por imagem , Urografia
8.
World J Urol ; 33(3): 301-7, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24752607

RESUMO

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.


Assuntos
Disfunção Erétil/epidemiologia , Tratamentos com Preservação do Órgão/métodos , Próstata/inervação , Próstata/cirurgia , Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Incontinência Urinária/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Biópsia , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Período Pós-Operatório , Próstata/patologia , Recuperação de Função Fisiológica , Fatores de Risco , Resultado do Tratamento
9.
Springerplus ; 3: 335, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25032093

RESUMO

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.

10.
World J Urol ; 32(6): 1375-83, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24452450

RESUMO

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.


Assuntos
Diafragma da Pelve/patologia , Prostatectomia/efeitos adversos , Neoplasias da Próstata/cirurgia , Uretra/patologia , Bexiga Urinária/patologia , Incontinência Urinária por Estresse/patologia , Idoso , Estudos de Casos e Controles , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Diafragma da Pelve/fisiopatologia , Estudos Prospectivos , Neoplasias da Próstata/patologia , Bexiga Urinária/fisiopatologia , Incontinência Urinária por Estresse/etiologia
11.
Urol Int ; 92(1): 74-82, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24051903

RESUMO

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.


Assuntos
Endoscopia/métodos , Pacientes/psicologia , Percepção , Procedimentos de Cirurgia Plástica/métodos , Qualidade de Vida , Obstrução Ureteral/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cicatriz/etiologia , Endoscopia/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/etiologia , Satisfação do Paciente , Estudos Prospectivos , Procedimentos de Cirurgia Plástica/efeitos adversos , Espaço Retroperitoneal/cirurgia , Retorno ao Trabalho , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Obstrução Ureteral/fisiopatologia , Adulto Jovem
12.
World J Urol ; 31(3): 629-38, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22710486

RESUMO

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.


Assuntos
Diafragma da Pelve/patologia , Diafragma da Pelve/fisiopatologia , Slings Suburetrais , Incontinência Urinária/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Idoso , Fibrose , Seguimentos , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Prostatectomia/efeitos adversos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Resultado do Tratamento , Uretra/patologia , Bexiga Urinária/patologia , Incontinência Urinária/etiologia
13.
Eur Urol ; 63(5): 792-6, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22902037

RESUMO

BACKGROUND: The detection of lymph node metastases (LNMs) is one of the biggest challenges in imaging in urology. OBJECTIVE: To evaluate the accuracy of combined 18F-fluoroethylcholine (FEC) positron emission tomography (PET)/computed tomography (CT) in the detection of LNMs in prostate cancer (PCa) patients with rising prostate-specific antigen (PSA) level after radical prostatectomy. DESIGN, SETTINGS, AND PARTICIPANTS: From June 2005 until November 2011, 56 PCa patients with biochemical recurrence after radical prostatectomy underwent bilateral pelvic and/or retroperitoneal lymphadenectomy based on a positive 18F-FEC PET/CT scan. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The findings of PET/CT were compared with the histologic results. RESULTS AND LIMITATIONS: Median PSA value at the time of 18F-FEC PET/CT analysis was 6.0 ng/ml (interquartile range: 1.7-9.4 ng/ml). In 48 of 56 (85.7%) patients with positive 18F-FEC PET/CT findings, histologic examination confirmed the presence of PCa LNMs. Of 1149 lymph nodes that were removed and histologically evaluated, 282 (24.5%) harbored metastasis. The mean number of lymph nodes removed per surgical procedure was 21 (standard deviation: ± 18.3). A lesion-based analysis yielded 18F-FEC PET/CT sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of 39.7%, 95.8%, 75.7%, and 83.0%, respectively. A site-based analysis yielded sensitivity, specificity, PPV, and NPV of 68.4%, 73.3%, 81.3%, and 57.9%, respectively. Patients with negative PET/CT did not undergo surgery, thus sensitivity, specificity, and negative predictive value on a patient basis could not be calculated. CONCLUSIONS: A positive 18F-FEC PET/CT result correctly predicted the presence of LNM in the majority of PCa patients with biochemical failure after radical prostatectomy but did not allow for localization of all metastatic lymph nodes and therefore was not adequately accurate for the precise estimation of extent of nodal recurrence in these patients.


Assuntos
Colina/análogos & derivados , Calicreínas/sangue , Linfonodos/diagnóstico por imagem , Imagem Multimodal , Tomografia por Emissão de Pósitrons , Antígeno Prostático Específico/sangue , Prostatectomia , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/cirurgia , Compostos Radiofarmacêuticos , Tomografia Computadorizada por Raios X , Idoso , Progressão da Doença , Humanos , Excisão de Linfonodo , Linfonodos/patologia , Linfonodos/cirurgia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prostatectomia/efeitos adversos , Neoplasias da Próstata/sangue , Neoplasias da Próstata/secundário , Reoperação , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Regulação para Cima , Imagem Corporal Total
14.
Urol Oncol ; 31(7): 1006-11, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22100069

RESUMO

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.


Assuntos
Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Incontinência Urinária/reabilitação , Fatores Etários , Idoso , Análise de Variância , Índice de Massa Corporal , Aconselhamento/métodos , Coleta de Dados/métodos , Coleta de Dados/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios/métodos , Prostatectomia/efeitos adversos , Neoplasias da Próstata/complicações , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Incontinência Urinária/diagnóstico , Incontinência Urinária/etiologia
15.
J Biomed Opt ; 17(6): 068005, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22734791

RESUMO

Laparoscopic/robotic partial nephrectomy (LPN) is increasingly considered for small renal tumors (RT). This demands new compatible surgical tools for RT-resection, such as lasers, to optimize cutting and coagulation. This work aims to characterize ex vivo handling requirements for six medically approved laser devices emitting different light wavelengths (940, 1064, 1318, 1470, 1940, and 2010 nm) amenable for LPN. Incisions were made by laser fibers driven by a computer-controlled stepping motor allowing precise linear movement with a preset velocity at a fixed fiber-tip distance to tissue. Optical parameters were measured on 200 µm tissue slices. Cutting quality depended on power output, fiber velocity and fiber-tip distance to tissue. Contact manner is suitable for cutting while a noncontact manner (5 mm distance) induces coagulation. Ablation threshold differs for each wavelength. Ablation depth is proportional to power output (within limit) while axial and superficial coagulation remains mostly constant. Increased fiber velocity compromises the coagulation quality. Optical parameters of porcine kidney tissue demonstrate that renal absorption coefficient follows water absorption in the 2 µm region while for other spectral regions (900 to 1500 and 1 µm) the tissue effects are influenced by other chromophores and scattering. Tissue color changes demonstrate dependencies on irradiance, scan velocity, and wavelength. Current results clearly demonstrate that surgeons considering laser-assisted RT excisions should be aware of the mentioned technical parameters (power output, fiber velocity and fiber-tip tissue-distance) rather than wavelength only.


Assuntos
Terapia a Laser/métodos , Nefrectomia/métodos , Absorção , Animais , Desenho de Equipamento , Hemostasia , Isquemia/patologia , Rim/patologia , Neoplasias Renais/terapia , Laparoscopia/métodos , Terapia a Laser/instrumentação , Lasers , Nefrectomia/instrumentação , Óptica e Fotônica/métodos , Perfusão , Reprodutibilidade dos Testes , Suínos
16.
Eur Urol ; 62(4): 640-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22717549

RESUMO

BACKGROUND: Pelvic lymphoceles (LCs) following radical prostatectomy (LC-RPs) are a well-described complication. Symptomatic LC-RPs are the most frequent, nonfunctional, postradical prostatectomy complications. OBJECTIVES: Description of the clinical presentations of LC-RPs and the detailed technique of laparoscopic pelvic LC marsupialisation (LM), including perioperative results and follow-up. DESIGN, SETTING, AND PARTICIPANTS: Data from 105 patients (age range: 57-76 yr) with symptomatic LC-RPs who underwent surgery in our institute were evaluated retrospectively. Pelvic ultrasound (US) and computed tomography scans, performed on all patients, revealed LC volumes ranging from 100 to 1200 ml. Fifty-five patients were refractory to prior percutaneous tube drainage and/or sclerotherapy. LM was performed using a three-trocar (n=60 patients) or two-trocar technique (n=45 patients). SURGICAL PROCEDURE: With the patient in Trendelenburg position, LCs were accurately identified by inspection, compressibility, and/or laparoscopic needle aspiration. A Foley catheter was inserted. Through one or two working trocars in the left lower abdomen, an adequate peritoneal window (wide ellipse) was excised. The LC cavity was inspected and septae, membranes, and haematomas were removed. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Perioperative surgical outcomes, analgesic medication, and inflammation parameters were recorded. Follow-up and success rates were estimated with US for LC recurrence. RESULTS AND LIMITATIONS: Five pelvic LC locations could be identified: paravesical, lateral pelvic (encapsulated and uncapsulated), prevesical, and with retroperitoneal extension. These were relevant for clinical diagnosis and management options. Pelvic LCs were right-sided in 37 patients, left-sided in 15, and on both sides in 53. All LM were uneventful and operating time (mean) ranged from 15 to 265 (31.7) min, which became shorter with increasing experience. One conversion with postoperative blood transfusion was necessary. Patients were discharged between 2 and 4 (mean: 2.3) d postoperatively. Postoperative US revealed primary success in all cases. Three patients developed recurrence from 1 to 3 wk posthospitalisation; otherwise, none had treatment for LC during a mean follow-up of 20 mo. Limitations include the retrospective study design and the small number of patients. CONCLUSIONS: LC-RPs are common and can be classified into five different patterns of clinical/anatomic presentation. LM is simple, feasible, and safe as the first-line treatment for large, noninfected, symptomatic or refractory LC-RPs with fewer complications and an overall 97% success rate.


Assuntos
Laparoscopia/métodos , Linfocele/etiologia , Linfocele/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Prostatectomia/efeitos adversos , Idoso , Humanos , Linfocele/diagnóstico , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico , Prostatectomia/métodos , Recidiva , Estudos Retrospectivos , Escleroterapia/métodos , Instrumentos Cirúrgicos , Resultado do Tratamento
17.
Urology ; 79(3): 717-21, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22386427

RESUMO

OBJECTIVE: To report our refinement of open intrafascial retropubic radical prostatectomy (OIF-RP) and 1-year follow-up results. PATIENTS AND METHODS: OIF-RP was performed in 231 cases of clinically localized Prostate cancer in a prospective study from January 2007 to December 2009. Inclusion criteria were good potency (IIEF-5 score ≥ 15), Gleason score ≤ 6, prostate-specific antigen (PSA) ≤ 10, and clinical T1-2 tumors. Endopelvic fascia was not incised, and the prostate capsule was freed laterally from surrounding fasciae and dorsally from Denonvillier's fascia, keeping all periprostatic fasciae/nerves intact. Functional outcomes were followed at 3 and 12 months (3 M and 12 M). Continence defined as complete (no pads), grade I (1-2 pads/day) and grade II (>2 pads/day). RESULTS: Median age was 63.3 years, body mass index 25.6, and PSA 5.4 ng/mL. Median operating time was 65 minutes (range 50-250), blood loss was 150 mL (range 50-1000), preoperative IIEF-score was 23 (range 15-25). Pathologic stage was pT2 (91%) and pT3 (9%). Gleason score was ≤ 6 (73%) and ≥ 7 (27%). Positive margins were 10% (pT2) and 65% (pT3). There were no postoperative complications/reinterventions. At 3 M, 60% of patients had full continence, and 86% had full continence at 12 M (≤ 60 years, 64% and 95% after 3 M and 12 M, respectively). At 3 M and 12 M, median IIEF-score was 14 (range 0-25) and 19 (range 0-25), respectively. Baseline IIEF-score was reached by 50% (3 M) and 78% (12 M) (P<.001). IIEF-score was inversely correlated to patients' age (≤ 60 years 92%, 60-69 years 77%, ≥ 70 years 60%). CONCLUSION: OIF-RP follows rationales of radical prostatectomy and might be considered for selected patients. Preserving all periprostatic fasciae/nerves recuperates early continence and maintains potency without affecting oncological outcomes.


Assuntos
Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Dissecação , Humanos , Tampões Absorventes para a Incontinência Urinária/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Estudos Prospectivos , Próstata/inervação , Prostatectomia/efeitos adversos , Recuperação de Função Fisiológica , Incontinência Urinária/epidemiologia
18.
World J Urol ; 30(2): 201-6, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21416252

RESUMO

PURPOSE: Prospective evaluation of independent risk factors for failure of the retrourethral transobturator sling suspension (RTS) with special attention on sphincter function and surgical technique. METHODS: A total of 189 patients with postprostatectomy stress urinary incontinence (SUI) were treated with RTS (AdVance(®) sling) in a prospective clinical study with a mean follow-up of 20.8 months. Eleven patients were lost to follow-up. Uni- and multivariate analyses were performed to identify independent risk factors for RTS failure. The success rate was defined as cured (no pad use or one dry 'security' pad) or improved (one to two pads and pad reduction ≥ 50%). RESULTS: At a mean follow-up of 20.8 months, the overall success rate was 73.1%. Multivariate analysis revealed that weak residual function and incomplete closure of the sphincter (OR, 29.0), no elongation of the coaptive sphincter zone (OR, 26.9), no sling tunnelling (OR, 22.6) and use of resorbable sutures with a small number (≤ 4) of stitches (OR, 8.4) are significant predictors for RTS failure. CONCLUSIONS: Preoperative selection of the patients with regard to residual sphincter function and a special attention on better sling fixation may increase RTS efficacy.


Assuntos
Complicações Pós-Operatórias/cirurgia , Prostatectomia , Slings Suburetrais , Incontinência Urinária por Estresse/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos , Idoso , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Estudos Prospectivos , Fatores de Risco , Falha de Tratamento
19.
World J Urol ; 30(5): 633-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22160275

RESUMO

OBJECTIVES: Evaluation of clamp-off laser-assisted laparoscopic partial nephrectomy technique (LLPN) compared to the clamp-off laparoscopic (LPN) and open (OPN) techniques. PATIENTS AND METHODS: Between September 2008 and July 2011, 36 patients suffering from small peripheral renal tumours (RT) underwent LLPN (n = 12), LPN (n = 12) and OPN (n = 12) in a prospective single-centre study. RT were excised with laser, Sonosurg or monopolar scissors during LLPN, LPN and OPN, respectively. Blood vessels are identified and sutured before opening them; alternatively, laser energy was used to coagulate them (LLPN). Early and late postoperative complications were assessed. Follow-up was done according to EAU-guidelines. RESULTS: Mean age was 64.9 years. Mean operative time was 135.8 min (100-180) versus 144.2 (85-255) versus 113.6 (50-170) for LLPN versus LPN versus OPN, respectively. Median estimated blood loss (EBL) was 170.8 ml (50-600) versus 245.2 (50-700) versus 425.8 (100-900) for LLPN versus LPN versus OPN, respectively. Tumours (19 right and 17 left) were located in upper (11), midparenchyma (13) and lower pole (12). Mean tumour size was 2.7 cm (1.2-5.5). There were no reported perioperative complications/conversions. There were no positive margins. Histological evaluations were not compromised in any LLPN-case. Compared to LPN, LLPN offered significant lower EBL, shorter operative time, otherwise, comparable results. Follow-up was uneventful without tumour recurrences. CONCLUSION: Current prospective comparative study shows that LLPN is a reproducible efficient alternative to LPN/OPN. Besides the absence of renal ischaemia, LLPN offered lower EBL, good haemostasis and minimal parenchyma damage. Surgical and oncological outcomes are comparable to LPN and OPN.


Assuntos
Carcinoma de Células Renais/cirurgia , Isquemia/cirurgia , Neoplasias Renais/cirurgia , Laparoscopia/métodos , Terapia a Laser/métodos , Nefrectomia/métodos , Adenoma Oxífilo/patologia , Adenoma Oxífilo/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Papilar/patologia , Carcinoma Papilar/cirurgia , Carcinoma de Células Renais/patologia , Feminino , Seguimentos , Humanos , Neoplasias Renais/patologia , Laparoscopia/instrumentação , Terapia a Laser/instrumentação , Leiomioma/patologia , Leiomioma/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/prevenção & controle , Nefrectomia/instrumentação , Duração da Cirurgia , Complicações Pós-Operatórias/prevenção & controle , Estudos Prospectivos , Instrumentos Cirúrgicos , Resultado do Tratamento
20.
Urology ; 78(3): 708-12, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21777955

RESUMO

OBJECTIVE: To evaluate prospectively detailed urodynamic parameters before and after retrourethral transobturator sling (RTS) placement and the impact of adverse preoperative urodynamic parameters on postoperative outcome. METHODS: Fifty-five consecutive patients with postprostatectomy stress urinary incontinence (SUI) underwent urodynamics with pressure flow and abdominal leak point pressure (ALPP) measurements, quality of life, 1-hour pad test, and daily pad use assessment before RTS (AdVance) and 12 months postoperatively. Volume of first sensation and first desire to void, maximum cystometric capacity (MCC), ALPP, maximum flow rate (Qmax.), average flow rate, time to Qmax., detrusor voiding pressure at Qmax., voiding time, and postvoid residual urine volume (PVR) were assessed. The success rate was defined as cure (no or one dry "security" pad) or improvement (1-2 pads or pad reduction≥50%). Adverse parameters included ALPP≤30 cm H2O, Qmax.≤10 mdL/s, and MCC≤200 mL. RESULTS: Success rate after RTS was 73% (40/55 patients). Mean follow-up was 21±11.7 (range, 12-41) months. Only ALPP changed significantly (61±14.2 vs 79±20.4 cm H2O). No PVR>30 mL, de novo reduced bladder compliance and hypo- or overactivity were observed. Urine loss by 1-hour pad test (136.1±119.4 vs 39.4±77.0) and daily pad use (4.6±2.0 vs 1.9±2.1) decreased significantly. Adverse preoperative urodynamic parameters were not associated with postoperative outcome. CONCLUSION: The RTS is an effective and safe device for SUI treatment without signs of compression or obstruction of the urethra or any influence on voiding parameters. Adverse preoperative urodynamic parameters have no influence on postoperative outcome.


Assuntos
Prostatectomia/efeitos adversos , Slings Suburetrais , Incontinência Urinária por Estresse/cirurgia , Urodinâmica , Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Incontinência Urinária por Estresse/etiologia , Incontinência Urinária por Estresse/fisiopatologia
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