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1.
BMC Urol ; 23(1): 35, 2023 Mar 07.
Article in English | MEDLINE | ID: mdl-36882812

ABSTRACT

BACKGROUND: Uretero-neocystostomy (UNC) is the gold-standard for distal-ureter repair. Whether the surgery should be conducted minimally invasive (laparoscopic (LAP), robotic RAL)) or open remains unanswered by the literature. METHODS: Retrospective analysis of surgical outcome of patients treated with UNC for distal ureteral stenosis (January 2012 - October 2021). Patient demographics, estimated blood loss (EBL), surgical technique, operative time, complications and length of hospital stay (LOS) were recorded. During the follow-up period, patient underwent renal ultrasound and kidney function tests. Success was defined as relieve of symptoms or no findings of obstruction needing urine drainage. RESULTS: 60 patients were included (9 RAL, 25 LAP, 26 open). The different cohorts were similar of age, gender, American Society of Anesthesiologists (ASA) score, body-mass index and history of prior treatment of the ureter. No intraoperative complications were detected in all groups. There was no conversion to open surgery in the RAL group, whereas one was found in the LAP arm. Six patients had a recurrent stricture, but with no significant difference between the cohorts. EBL was not different between the groups. LOS was significantly lower in the RAL + LAP group compared to open (7 vs. 13 days, p = 0.005) despite significantly longer operating times (186 vs. 125.5 min, p = 0.005). CONCLUSION: Minimal invasive UNC, especially RAL, is a feasible and safe surgical method and provides similar results in terms of success rates in comparison to open approach. A shorter LOS could be detected. Further prospective studies need to be done.


Subject(s)
Laparoscopy , Robotic Surgical Procedures , Ureter , Humans , Ureter/surgery , Prospective Studies , Retrospective Studies , Constriction, Pathologic
2.
Cancers (Basel) ; 14(3)2022 Jan 29.
Article in English | MEDLINE | ID: mdl-35158964

ABSTRACT

BACKGROUND: In Bacillus Calmette-Guérin (BCG) refractory non-muscle-invasive bladder cancer (NMIBC), radical cystectomy is the gold standard. The advent of immune checkpoint inhibitors (CPIs) has permanently changed the therapy landscape of bladder cancer (BC). This article presents a systematic review of immune-modulating (IM) therapies (CPIs and others) in BCG-refractory NMIBC. METHODS: In total, 406 articles were identified through data bank research in PubMed/Medline, with data cutoff in October 2021. Four full-text articles and four additional congress abstracts were included in the review. RESULTS: Durvalumab plus Oportuzumab monatox, Pembrolizumab, and Nadofaragene firadenovec (NF) show complete response (CR) rates of 41.6%, 40.6%, and 59.6% after 3 months, with a long-lasting effect, especially for NF (12-month CR rate of 30.5%). Instillations with oncolytic viruses such as NF and CG0070 show good efficacy without triggering significant immune-mediated systemic adverse events. Recombinant BCG VPM1002BC could prove to be valid as an alternative to BCG in the future. The recombinant pox-viral vector vaccine PANVAC™ is not convincing in combination with BCG. Interleukin mediating therapies, such as ALT-803, are currently being studied. CONCLUSION: CPIs and other IM agents now offer an increasing opportunity for bladder-preserving strategies. Studies on different substances are ongoing and will yield new findings.

3.
Int J Surg Case Rep ; 83: 106031, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34087689

ABSTRACT

INTRODUCTION AND IMPORTANCE: There is sparse literature about lower ureteric obstruction due to aberrant blood vessels. We report a case of a patient who was referred to our hospital due to left sided flank pain caused by external compression of the distal ureter. CASE PRESENTATION: A 47-year-old male patient presented with left sided flank pain. A computed tomography scan revealed external compression of the lower ureter. Hypertrophy of the psoas muscle due to extensive cycling for 20 years lead to concomitant kinking and elongation of the iliacal vessels which caused the distal ureteric obstruction. Robotic-assisted laparoscopic ureterocystoneostomy with psoas hitch technique was performed. CLINICAL DISCUSSION: Lower ureteric obstruction, mostly seen in children, is mostly caused by vascular anomalies such as a persistent umbilical artery. After literature review, we presume it to be the first reported case of distal ureteric obstruction caused by external vascular elongation. CONCLUSION: The external elongation of pelvic vessels due to excessive cycling and the concomitant extrinsic compression of the distal ureter should be considered as rare but possible cause of lower uretic obstructions.

4.
BMC Urol ; 20(1): 56, 2020 May 18.
Article in English | MEDLINE | ID: mdl-32423440

ABSTRACT

BACKGROUND: Over the last few years the number of flexible ureterorenoscopies, used for renal stone treatment, has risen steadily. This was associated with an increase in costs for maintenance and repair of the fragile ureterorenoscopes used. To overcome this problem single-use devices have been introduced to the market. The aim of this study was to assess surgical outcome and workability for LithoVue™, a single-use flexible ureterorenoscope. METHODS: We retrospectively analyzed all flexible ureterorenoscopies performed at our department between January and October 2017. We included a total of 108 interventions for renal stone therapy, all performed using the single-use device LithoVue™. We assessed patients' characteristics including stone size, count and location. We evaluated the surgical outcome, analyzing stone-free rates, reintervention rates, complication rates, as well as surgery time. Learning curve for single-use ureterorenoscopes was evaluated by comparing the surgical outcome between residents and consultants. RESULTS: The average time needed per intervention was 52,31 min ± 28,11. In 77 out of 108 (71,30%) patients we were able to remove all stones by a single intervention. In 8 patients (7,41%) intra- or postoperative complications occurred, none of which was graded higher than Clavien-Dindo III B. We did not find any statistical differences comparing the surgical outcome between residents and consultants. No technical difficulties occurred during surgery. CONCLUSION: Single-use flexible ureterorenoscopes provide decent working properties resulting in good surgical outcome. Furthermore, they are proven to be easy to handle even for unexperienced surgeons, making them a feasible choice for high volume academic centers.


Subject(s)
Kidney Calculi/surgery , Ureteroscopes , Ureteroscopy/instrumentation , Adult , Aged , Equipment Design , Female , Hospitals, High-Volume , Humans , Male , Middle Aged , Retrospective Studies
5.
World J Urol ; 38(3): 703-708, 2020 Mar.
Article in English | MEDLINE | ID: mdl-31114949

ABSTRACT

PURPOSE: To investigate the role of en bloc re-resection (EBRS) in patients who had undergone previous en bloc resection for high-risk non-muscle-invasive bladder cancer (NMIBC). METHODS: An international, multicenter, observational retrospective analysis of prospectively collected data. Patients with a high-risk NMIBC who had previously undergone en bloc resection were scheduled for EBRS of the resected area after 40 days. The primary outcome was the presence of residual tumor or recurrence-free survival. RESULTS: Overall, 78 patients underwent EBRS. Only five (6.41%) residual cancers were found: one patient had a pTa G3 (1.28%) cancer and four (5.13%) had a pTis. The detrusor muscle was preserved in all samples. Only one patient had a positive margin on EBRS. No procedure called for a conversion to traditional re-TURBT. No patient experienced bladder perforation or other intra-operative complications. The recurrence rate at the first follow-up cystoscopy (RRFF-C at 3 months) was 3.85% (three patients). The median follow-up period was 30.8 months (range 6.9-76.0 months). In univariate analysis, the only predictor of recurrence was grade. Overall we observed 11 recurrences. Only one tumor progressed to T2 MIBC. CONCLUSIONS: The low rates of residual tumor, recurrence, and progression seem to raise doubts about the efficacy of EBRS in patients who have previously undergone en bloc resection. EBRS appears to be a feasible and safe procedure with a low rate of complications. However, further data will be needed before EBRS can be used in clinical trials or recommended as a treatment modality.


Subject(s)
Carcinoma, Transitional Cell/surgery , Cystoscopy/methods , Reoperation , Urinary Bladder Neoplasms/surgery , Urinary Bladder/pathology , Aged , Carcinoma, Transitional Cell/pathology , Disease-Free Survival , Female , Humans , Male , Middle Aged , Neoplasm Invasiveness , Neoplasm Staging , Neoplasm, Residual , Retrospective Studies , Urinary Bladder Neoplasms/pathology
6.
Clin Genitourin Cancer ; 17(5): e957-e967, 2019 10.
Article in English | MEDLINE | ID: mdl-31235275

ABSTRACT

BACKGROUND: Treatment decisions in routine clinical practice are based on reports of clinical trials, which represent highly selected populations. Limited studies reported real-world evidences representing routine clinical practices in patients with renal-cell carcinoma (RCC) in Europe. The aim of this retrospective, noninterventional chart review was to collect data on the treatment landscape for patients with advanced/metastatic RCC in routine clinical practice in a broader patient population in Austria. PATIENTS AND METHODS: Patients with advanced/metastatic RCC receiving systemic treatment between June 2010 and June 2016 across 12 centers in Austria were included. Parameters were entered into an electronic case report form from the participating sites via the application Hermesoft electronic data capture system. Progression-free survival (PFS) and overall survival (OS) were the 2 primary end points. RESULTS: The median PFS and OS were 12 months and 44 months, respectively (first-line PFS was 14 months for pazopanib and 13 months for sunitinib; first-line OS was 44 months for pazopanib and 48 months for sunitinib). Factors influencing the OS were sex, with female patients at a significantly higher risk than male patients (hazard ratio = 1.719), Eastern Cooperative Oncology Group performance status > 0 increased the risk twice (hazard ratio = 2.048), and number of metastases > 3 before the first line doubled the risk compared to metastases (hazard ratio = 2.064). CONCLUSION: OS in this retrospective chart review was considerably longer than the previous reports in real-world patients, underlining the benefit of current RCC treatment options in routine clinical practice.


Subject(s)
Antineoplastic Agents/therapeutic use , Carcinoma, Renal Cell/drug therapy , Kidney Neoplasms/drug therapy , Aged , Austria , Clinical Decision-Making , Electronic Health Records , Female , Humans , Indazoles , Male , Middle Aged , Neoplasm Metastasis , Pyrimidines/therapeutic use , Retrospective Studies , Sex Characteristics , Sulfonamides/therapeutic use , Sunitinib/therapeutic use , Survival Analysis , Treatment Outcome
7.
Clin Case Rep ; 7(12): 2321-2326, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31893050

ABSTRACT

In renal tumors, suspicious for renal cell carcinoma, where there is any doubt and discrepancy between morphology and immune profile, we recommend performing further immunohistochemical staining for pan-cytokeratin, S100, NSE, and inhibin-alpha. Thus, follow-up overtreatment can be avoided in cases of benign kidney tumors.

8.
BMC Urol ; 18(1): 99, 2018 Nov 09.
Article in English | MEDLINE | ID: mdl-30413201

ABSTRACT

PURPOSE: Warm ischemia (WI) and bleeding constitute the main challenges for surgeons during laparoscopic partial nephrectomy (LPN). Current literature on the use of lasers for cutting and coagulation remains scarce and with small cohorts. We present the largest case series to date of non-ischemic LPN using a diode laser for small exophytic renal tumors. METHODS: We retrospectively evaluated 29 patients with clinically localized exophytic renal tumors who underwent non-ischemic laser-assisted LPN with a 1318-nm wavelength diode laser. We started applying the laser 5 mm beyond the visible tumor margin, 5 mm away from the tissue in a non-contact fashion for coagulation and in direct contact with the parenchymal tissue for cutting. RESULTS: The renal vessels were not clamped, resulting in a WIT (warm ischaemic time) of 0 min, except for one case that required warm ischemia for 12 min and parenchymal sutures. No transfusion was needed, with a mean Hemoglobin drop of 1,4 mg/dl and no postoperative complications. The eGFR did not significantly change by 6 months. Histologically, the majority of lesions (n = 22/29) were renal-cell carcinoma stage pT1a. The majority of malignant lesions (n = 13/22) had a negative margin. However, margin interpretation was difficult in 9 cases due to charring of the tumor base. A mean follow-up of 1.8 years revealed no tumor recurrence. The mean tumor diameter was 19.4 mm. CONCLUSION: The 1318-nm diode laser has the advantages of excellent cutting and sealing properties when applied to small vessels in the renal parenchyma, reducing the need for parenchymal sutures. However, excessive smoke, charring of the surgical margin, and inability to seal large blood vessels are encountered with this technique.


Subject(s)
Carcinoma, Renal Cell/surgery , Kidney Neoplasms/surgery , Laparoscopy/methods , Lasers, Semiconductor/therapeutic use , Nephrectomy/methods , Adult , Aged , Aged, 80 and over , Carcinoma, Renal Cell/diagnostic imaging , Cohort Studies , Female , Follow-Up Studies , Humans , Kidney Neoplasms/diagnostic imaging , Male , Middle Aged , Retrospective Studies
9.
Aktuelle Urol ; 48(4): 314-328, 2017 Aug.
Article in German | MEDLINE | ID: mdl-28609792

ABSTRACT

Background Adjuvant Bacillus Calmette-Guérin (BCG) intravesical instillation is the recommended standard treatment in patients with high-risk non-muscle-invasive bladder cancer (NMIBC). However, a significant proportion of patients fail treatment, and radical cystectomy (RC) is the subsequent gold standard. On the other hand, there is an unmet need for conservative alternatives for patients who are unfit or unwilling to undergo surgery. This study aimed to identify conservative treatment options in NMIBC patients after BCG failure. Material and Methods We performed a systematic search in the databases Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE and EMBASE, including all randomised controlled trials (RCTs), quasi-RCTs and single-arm studies, in which patients with NMIBC were treated with second-line intravesical or systemic therapy after BCG failure. A minimum of eight patients were included in each treatment arm. Full papers were restricted to English language. Literature research and data analysis were assessed independently by two reviewers. Data on treatment response, recurrence, time to recurrence, progression and rate of cystectomy were collected and analysed. Results This systematic review included 42 publications with a total of 3521 patients (2371 BCG failures). Valrubicin, taxanes, gemcitabine, combination chemotherapy, thermochemotherapy, photodynamic therapy, combination of BCG and interferon and immunotherapies or targeted therapies were identified as conservative treatment options. For taxanes, gemcitabine and thermochemotherapy there is the highest evidence for a clinical meaningful response with minor toxicities. Conclusions Despite some promising response rates for taxanes, gemcitabine or thermochemotherapy, an evidence-based recommendation for treatment options superior to RC in patients failing BCG therapy cannot be made. The definition of BCG failure is still inconsistent and heterogeneous outcomes in patients with BCG failure have been reported. In order to identify effective conservative therapy options in patients failing BCG therapy, prospective trials with a standardised trial design are needed.


Subject(s)
BCG Vaccine , Conservative Treatment , Urinary Bladder Neoplasms , Adjuvants, Immunologic , Antimetabolites, Antineoplastic/therapeutic use , BCG Vaccine/pharmacology , Deoxycytidine/analogs & derivatives , Deoxycytidine/therapeutic use , Drug Resistance, Viral , Humans , Immunotherapy , Randomized Controlled Trials as Topic , Urinary Bladder Neoplasms/therapy , Gemcitabine
10.
J Endourol ; 30(5): 526-31, 2016 05.
Article in English | MEDLINE | ID: mdl-26732642

ABSTRACT

OBJECTIVES: To demonstrate the feasibility of our novel natural orifice transluminal endoscopic surgery (NOTES)-assisted approach with medium-term follow-up. PATIENTS AND METHODS: From March 2012, we included all patients who presented to our clinic with symptomatic or complicated retentive bladder diverticula secondary to long-standing infravesical obstruction. After managing the primary cause, we proceeded in all cases to our novel NOTES-assisted approach. We followed up the patients with abdominal ultrasonography at 6 weeks and 12 months postoperatively. Success was determined as subjective relief of the symptoms and objective disappearance of the diverticula in postoperative retrograde cystogram (RGC). RESULTS: Between March 2012 and August 2014, eight diverticula were treated using our new technique. The surgery was uneventful. The mean operative time was 134.25 ± 44.92 minutes. Blood loss was minimal (>50 mL). Retrograde cystography was performed on the 10th postoperative day. The introduction of the needle holder through the urethral natural orifice (NOTES) facilitated a more optimal direction of the needle holder for suturing the bladder wall due to its parallel position in relation to the trigone and posterolateral walls. This renders this step easier compared with suturing the bladder wall through the transvesical laparoscopic ports. One case had a grade IIIa complication according to the Clavien-Dindo classification of surgical complications. The study is limited by the small number of cases. CONCLUSION: Laparoscopic transvesical bladder diverticulectomy is a promising and safe procedure with good outcomes. Using the urethra (NOTES assisted) as an extra access to the bladder facilitates diverticular traction and bladder suturing without the need for extra ports. This technique can also be applied together with the novel T-laparoendoscopic single-site surgery approach.


Subject(s)
Diverticulum/surgery , Laparoscopy/methods , Natural Orifice Endoscopic Surgery/methods , Urinary Bladder/abnormalities , Urinary Bladder/surgery , Urologic Surgical Procedures/methods , Adult , Aged , Aged, 80 and over , Feasibility Studies , Follow-Up Studies , Humans , Male , Middle Aged , Operative Time , Time Factors , Treatment Outcome , Young Adult
11.
Wien Med Wochenschr ; 165(19-20): 406-9, 2015 Oct.
Article in German | MEDLINE | ID: mdl-26169994

ABSTRACT

As part of diagnostic work-up of a 71-year-old patient with resistant hypertension, an extraadrenal mass was found. After further imaging and biochemical evaluation an extraadrenal pheochromocytoma was diagnosed and after alpha-receptor blockade was removed via posterior approach laparoscopically in the course. The pheochromocytoma is a rare catecholamine-producing tumor with an incidence of 1-2 per 100 000. In about 1-25 % it is located extraadrenal. Establishing the diagnosis is dependent on the demonstration of significant catecholamine excess. Afterwards imaging with CT or MRI should be performed. After administration of alpha-blockers, the complete surgical resection is the treatment of choice.


Subject(s)
Adrenal Gland Neoplasms/diagnosis , Coronary Vasospasm/etiology , Hypertension/etiology , Incidental Findings , Pheochromocytoma/diagnosis , Retroperitoneal Neoplasms/diagnosis , Vena Cava, Inferior/pathology , Adrenal Gland Neoplasms/surgery , Aged , Coronary Vasospasm/surgery , Diagnosis, Differential , Humans , Hypertension/surgery , Male , Pheochromocytoma/surgery , Positron-Emission Tomography , Retroperitoneal Neoplasms/surgery , Tomography, X-Ray Computed
12.
Case Rep Urol ; 2015: 701046, 2015.
Article in English | MEDLINE | ID: mdl-25852958

ABSTRACT

Spontaneous, nontraumatic retroperitoneal hemorrhage or Wunderlich syndrome (WS) is a rare but potential life-threatening condition. In most patients a bleeding renal neoplasm is the cause of the retroperitoneal hematoma. The management of this condition includes a conservative approach in the hemodynamically stable patients and active treatment in the unstable patients. Active treatment includes angioembolization or surgery. If angioembolization is not available open surgery is in most cases the preferred approach. We present a patient with a spontaneously ruptured kidney due to a central renal angiomyolipoma, which was treated by laparoscopic nephrectomy.

13.
World J Urol ; 33(4): 555-62, 2015 Apr.
Article in English | MEDLINE | ID: mdl-24859776

ABSTRACT

AIM: To determine the status quo in respect of various diode lasers and present the techniques in use, their results and complications. We assess how these compare with transurethral resection of the prostate and other types of laser in randomized controlled trials (RCTs). When adequate RCTs were not available, case studies and reports were evaluated. MATERIALS AND METHODS: Laser for the treatment of benign prostatic hyperplasia (BPH) has aroused the interest and curiosity of urologists as well as patients. The patient associates the term laser with a successful and modern procedure. The journey that started with coagulative necrosis of prostatic adenoma based on neodymium: yttrium-aluminum-garnet (Nd:YAG) laser has culminated in endoscopic "enucleation" with holmium laser. Diode laser is being used in urology for about 10 years now. Various techniques have been employed to relieve bladder outlet obstruction due to BPH. RESULTS: The diode laser scenario is marked by a diversity of surgical techniques and wavelengths. We summarize the current published literature in respect of functional results and complications. CONCLUSION: More randomized controlled studies are needed to determine the position and the ideal technique of diode laser treatment for BPH.


Subject(s)
Lasers, Semiconductor/therapeutic use , Prostatectomy/methods , Prostatic Hyperplasia/surgery , Urinary Bladder Neck Obstruction/surgery , Disease Management , Humans , Laser Therapy/methods , Male , Prostatic Hyperplasia/complications , Treatment Outcome , Urinary Bladder Neck Obstruction/etiology
14.
J Urol ; 184(3): 913-7, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20643432

ABSTRACT

PURPOSE: We assessed the prostate cancer detection rate of real-time elastography targeted biopsy in men with total prostate specific antigen 1.25 ng/ml or greater and 4.00 ng/ml or less. MATERIALS AND METHODS: Real-time elastography using an EUB 8500 Hitachi ultrasound system (Hitachi Medical, Tokyo, Japan) was done in 94 men with a mean age of 57.4 years (range 35 to 77) with increased prostate specific antigen between 1.25 ng/ml or greater and 4.00 ng/ml or less (mean 3.20, range 1.30 to 4.00) and a free-to-total prostate specific antigen ratio of less than 18%. Real-time elastography was done to evaluate peripheral zone tissue elasticity and hard areas were defined as suspicious. Targeted biopsies with a maximum of 5 cores were done in suspicious areas, followed by 10-core systematic biopsy. We analyzed the cancer detection rate of real-time elastography and systematic biopsy. RESULTS: Cancer was found in 27 of 94 patients (28.7%). Real-time elastography detected cancer in 20 patients (21.3%) and systematic biopsy detected it in 18 (19.1%). Positive cancer cores were found in real-time elastography targeted cores in 38 of 158 cases (24%) and in systematic cores in 38 of 752 (5.1%) (chi-square test p <0.0001). The cancer detection rate per core was 4.7-fold greater for targeted than for systematic biopsy. CONCLUSIONS: Real-time elastography targeted biopsy allows prostate cancer detection in men with prostate specific antigen 1.25 ng/ml or greater and 4 ng/ml or less with a decreased number of cores compared with that of systematic biopsy.


Subject(s)
Elasticity Imaging Techniques , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood , Prostatic Neoplasms/diagnosis , Adult , Aged , Biopsy/methods , Humans , Male , Middle Aged , Time Factors
15.
BJU Int ; 106(11): 1668-72, 2010 Dec.
Article in English | MEDLINE | ID: mdl-20518761

ABSTRACT

OBJECTIVE: To evaluate the efficacy and safety of a transobturator retroluminal repositioning sling suspension in the treatment of male stress urinary incontinence (SUI) after prostate surgery. PATIENTS AND METHODS: In 118 men with SUI after prostatic surgery, a transobturator retroluminal repositioning sling suspension was implanted. Patients were evaluated including: complete history and physical examination, 24-h pad test, a questionnaire (International Consultation on Incontinence Questionnaire, Short-Form), urodynamic evaluation and endoscopy. The surgical technique was described previously. The findings before and at 1 year after sling placement were compared. RESULTS: At the 12-month follow-up, 73.7% of the men were cured, 16.9% were improved, and 9.3% were still incontinent. After sling placement the daily pad use decreased significantly (P < 0.001), while the ICIQ-SF improved significantly (P < 0.01). The detrusor voiding pressure, postvoid residual urine volume and maximal flow rates remained unchanged, while the Valsalva leak-point pressure improved significantly (P < 0.01). In 19.5% of the men, there was transient scrotal pain or perineal discomfort. In 5.1% of the men, postoperative urinary retention occurred but resolved spontaneously after a few weeks of catheter placement. In 1.7% of the men adductor pain was reported, which resolved spontaneously. There were no major complications. CONCLUSION: The transobturator retroluminal repositioning sling suspension for the treatment of male SUI is effective and safe with a low complication rate after 1 year of follow-up.


Subject(s)
Prostatectomy/adverse effects , Prostatic Neoplasms/surgery , Suburethral Slings , Urinary Incontinence, Stress/surgery , Aged , Epidemiologic Methods , Humans , Male , Middle Aged , Prostatic Neoplasms/complications , Quality of Life , Suburethral Slings/adverse effects , Treatment Outcome , Urinary Incontinence, Stress/etiology , Urodynamics
16.
Eur Radiol ; 20(12): 2791-6, 2010 Dec.
Article in English | MEDLINE | ID: mdl-20571801

ABSTRACT

OBJECTIVE: To compare the efficiency of contrast-enhanced colour Doppler ultrasound (CECD-US) targeted biopsy versus systematic biopsy (SB) for PCa detection in 1,776 men. METHODS: Retrospective, single-centre, diagnostic accuracy study from 2002 until 2006 in 1,776 male volunteers with a serum total PSA of 1.25 ng/ml or greater. In each patient five CECD-US targeted biopsies were performed in hypervascular areas in the peripheral zone during intravenous injection of a second-generation microbubble US contrast agent. Subsequently, another examiner performed ten SBs. The PCa detection rates for the two techniques were compared. RESULTS: Of 1,776 patients, cancer was detected in 559 patients (31%), including 476 of the 1,776 patients (27%) with CECD-US and 410 (23%) with SB (p < 0.001). The detection rate for CECD-US targeted biopsy cores (10.8% or 961 of 8,880 cores) was significantly better than for SB cores (5.1% or 910 of 17,760 cores, p < 0.001). Among patients with a positive biopsy for PCa, cancer was detected by CECD-US alone in 149 patients (27%) and by SB alone in 83 (15%) (p < 0.001). CONCLUSION: This study represents the largest clinical trial to date, demonstrating a significant benefit of CECD-US targeted biopsy relative to SB.


Subject(s)
Biopsy, Needle/statistics & numerical data , Phospholipids , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/epidemiology , Sulfur Hexafluoride , Ultrasonography, Doppler, Color/methods , Ultrasonography, Interventional/statistics & numerical data , Adult , Aged , Aged, 80 and over , Austria/epidemiology , Contrast Media , Humans , Male , Middle Aged , Prevalence , Reproducibility of Results , Sensitivity and Specificity
17.
J Endourol ; 24(5): 685-91, 2010 May.
Article in English | MEDLINE | ID: mdl-20433367

ABSTRACT

PURPOSE: To describe the current and new developments in transrectal ultrasound (US) imaging of the prostate. PATIENTS AND METHODS: Grayscale imaging of the prostate is the standard method for diagnostic evaluation and biopsy guidance. Color Doppler (CD) imaging, including CD and power Doppler US, allows for detection of macrovascularity and may therefore be helpful for assessment of prostatic blood flow. The use of US microbubbles for CD imaging and new contrast-specific techniques enable assessment of prostate microvascularity associated with prostate cancer (PCa). Recently, real-time elastography has been introduced to improve detection of cancer based upon changes in tissue stiffness. RESULTS: Contrast-enhanced CD imaging has shown to enable PCa detection by performing targeted biopsies into suspicious areas. Comparisons between systematic and contrast-enhanced targeted biopsies have shown that the targeted approach detects more cancers and cancers with higher Gleason scores with a reduced number of biopsy cores. New microbubble-specific US techniques can improve sensitivity and specificity of US imaging for PCa detection. Real-time elastography has been demonstrated to be useful for the detection of PCa, and may further improve PCa staging. CONCLUSIONS: The new US techniques seem to have the potential to improve PCa detection, and also PCa grading and staging. As these diagnostic methods improve, the ultimate hope is to eliminate biopsy in patients without cancer.


Subject(s)
Prostate/diagnostic imaging , Prostatic Neoplasms/diagnostic imaging , Biopsy, Needle , Contrast Media , Elasticity Imaging Techniques , Endosonography , Humans , Male , Neoplasm Staging , Prostatic Neoplasms/pathology
18.
Cancer Imaging ; 10: 40-8, 2010 Mar 03.
Article in English | MEDLINE | ID: mdl-20199941

ABSTRACT

Ultrasound is a widely used imaging modality for evaluation of the prostate. The main topic of diagnostic imaging is an improvement of prostate cancer diagnosis. The current available systematic prostate biopsy is performed only under ultrasound guidance, but new imaging techniques allow prostate cancer visualization and therefore improved detection. Evolving methods such as contrast-enhanced colour Doppler imaging, contrast-specific ultrasound techniques and elastography may dramatically change the role of ultrasound for prostate cancer diagnosis. The purpose of this review is to provide an overview of ultrasound and its different techniques for imaging of the prostate and to discuss current trends and future directions.


Subject(s)
Prostate/diagnostic imaging , Humans , Male , Prostatic Hyperplasia/diagnostic imaging , Prostatic Neoplasms/diagnostic imaging , Prostatitis/diagnostic imaging , Ultrasonography/methods , Ultrasonography/trends
19.
BJU Int ; 106(9): 1315-8; discussion 1318, 2010 Nov.
Article in English | MEDLINE | ID: mdl-20346032

ABSTRACT

OBJECTIVE: To correlate a subjective blood-flow rating scale from contrast-enhanced colour Doppler (CECD) transrectal ultrasonography-targeted prostate biopsy with the histopathological outcome of the biopsy. PATIENTS AND METHODS: In all, 760 men with a serum total prostate-specific antigen (PSA) level of ≥ 1.25 ng/mL and a free-to-total PSA ratio of < 18% were included. CECD-targeted biopsies with five cores were taken only in hypervascular areas of the peripheral zone using a second-generation ultrasonography contrast agent, followed by a 10-core systematic biopsy. Prostate blood flow was scored using a subjective 5-point scale in which 1 indicated 'benign', 2 'probably benign', 3 'indeterminate', 4 'probably malignant' and 5 'malignant'. RESULTS: Overall 37% (283 of 760) patients had prostate cancer in the biopsy. All 100 patients with a score of 5 had cancer; 153 had a score of 4, of whom 130 (85%) had cancer and 23 had benign histology (15%); 131 had a score of 3, of whom 34 (26%) had cancer and 97 (74%) had benign histology; 284 had a score of 2, of whom 17 (6%) had cancer and 267 (94%) had benign histology; 92 had a score of 1, of whom two (2%) had cancer and 90 (98%) had benign tissue. Statistical evaluation showed that the subjective blood-flow rating scale correlated strongly and significantly (r = 0.75, P < 0.01) with the histopathological outcome of the biopsy. CONCLUSION: The present study shows that a subjective CECD blood-flow rating scale is a reliable tool to predict the pathological outcome of biopsy cores.


Subject(s)
Prostate/pathology , Prostatic Neoplasms/pathology , Biopsy, Needle/methods , Blood Flow Velocity , Cohort Studies , Contrast Media , Humans , Male , Middle Aged , Prostate/blood supply , Prostate/physiopathology , Prostate-Specific Antigen/blood , Prostatic Neoplasms/blood supply , Prostatic Neoplasms/physiopathology , Ultrasonography, Doppler, Color , Ultrasonography, Interventional
20.
BJU Int ; 106(8): 1211-4, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20230383

ABSTRACT

OBJECTIVE: to report a new dorsal labia minora skin-graft urethroplasty as a simple, safe and effective therapeutic alternative for female urethral strictures, as although distal urethral strictures can be treated by meatoplasty, proximal and mid-urethral strictures need appropriate urethroplasty. PATIENTS AND METHODS: eight women with a confirmed proximal or mid-urethral stricture had indications for urethroplasty with the use of a thin free labia minora skin graft using a dorsal (6 o'clock position) urethroplasty technique. Full informed consent was obtained. From the inner aspect of one labium minora a thin free skin flap was prepared. The strictured urethra and the anterior vaginal wall were transected and the graft sutured into the defect. All scar tissue was removed and the anterior vaginal wall closed in two layers over the area of the urethroplasty. Continence was evaluated by a stress test with a full bladder. RESULTS: all patients were operated on with no complications during or after surgery. After 1 and 2 years of follow-up seven and six of the eight patients had no recurrence of stricture disease. All patients remained continent. CONCLUSION: the urethroplasty using an inlay of free thin genital skin graft was safe, uncomplicated and effective.


Subject(s)
Plastic Surgery Procedures/methods , Surgical Flaps , Urethra/surgery , Urethral Stricture/surgery , Vulva/transplantation , Adult , Aged , Feasibility Studies , Female , Humans , Middle Aged , Pilot Projects , Plastic Surgery Procedures/adverse effects , Skin Transplantation , Treatment Outcome
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