Kevin De Laet

Maxima Medical Center | MMC · Urology

Objective The objective of this study is to present the results in the first 40 patients treated with a new minimal invasive technique in the treatment of large-volume benign prostate hyperplasia: the endoscopic transvesical adenomectomy of the prostate (ETAP). Patients and Methods From 2014 to 2016 we performed the ETAP in 40 patients with large...

Actinobaculum schaalii is a Gram-positive coccoid rod that causes various infections in human and is easily overlooked in cultures. A. schaalii has long been thought to be of low prevalence and limited invasive potential causing benign cystitis in elderly patients with underlying urologic conditions. Here we report the first case of epididymitis ca...

Kidney stones are a common problem in the Netherlands. The incidence of urolithiasis amounts to approximately 2 per 1,000 patients per year. The highest incidence is seen in people aged 20 to 40 years with a male/female ratio of 2/1. The prevalence of urolithiasis in the Netherlands may be estimated at 5,5%. Not every kidney or ureteral stone needs...

Introduction Laparoscopic and robot assisted pyeloplasty have been shown to be as efficacious as the gold standard open technique in the treatment of ureteropelvic junction stenosis. This study shows the results of laparoscopic pyeloplasty in a non-academic centre. Methods The results of transperitoneal laparoscopic dismembered pyeloplasty (LP) w...

Introduction Despite current use of MRI for lymph node staging in patients with prostate cancer (PCa), extended pelvic lymph node dissection (ePLND) is still the gold standard. Lymph node staging is mandatory in patients with intermediate and high risk prostate cancer (EAU guidelines) when treatment with curative intention is chosen. The presence o...

Introduction. Radical prostatectomy (RP) can lead to erectile dysfunction due to surgical injury of the cavernous nerves. However, there is no simple, objective test to evaluate cavernous nerve damage caused by RP in clinical practice. Aim. To assess the value of the measurement of penile thermal and vibratory sensory thresholds to reflect cavernou...

This study provides an update on the technological aspects of the methods for active removal of renal stones. Currently, extracorporeal shock wave lithotripsy (ESWL), ureteroscopy (URS) and percutaneous nephrolithotomy (PCNL) are the available options. Findings are based upon recent literature from the PubMed database and the European Association o...

We describe an 80-year-old female with a left ureteroileal fistula and simultaneously a right ureteroiliac fistula. Her history highlights the predisposing factors of radiation, major surgery in the region, and presence of bilateral double-J-stents. She was successfully treated with an endovascular approach after being initially misdiagnosed. There...

Synchronous renal cell carcinoma in patients with colorectal carcinoma is reported in various percentages ranging from 0.03 up to 4.85% (Halak et al. (2000), Capra et al. (2003)). When surgical treatment is indicated usually two separate operations are planned for resection. In open surgery, in such cases simultaneous resection is recommended if po...

We describe the clinical history of a 79-year-old diabetic female patient with a mild form of emphysematous cystitis (EC). This is a rare complication of a lower urinary tract infection, characterized by the presence of air within the bladder wall and lumen. It is caused by various gas forming uropathogens, Escherichia coli being the most prevalent...

Different tests can be used to evaluate lower urinary tract (LUT) sensation. The purpose of this study is to compare sensory tests in patients with voiding disorders. Seventy patients with various functional disorders of the LUT were admitted for a cystometry and an electrical perception threshold test of the bladder (bEPT) and distal urethra (uEPT...

We investigated whether an intrafascial approach to prostatectomy would provide significantly improved outcomes compared with retropubic and laparoscopic approaches. We performed 50 radical prostatectomies with an intrafascial, nerve-sparing, laparoscopic, robot-assisted extraperitoneal approach. From December 2007 to June 2008, 50 consecutive pati...

To determine the value of a 21-sample biopsy protocol in predicting tumour localization in radical prostatectomy (RP) specimens, compared with sextant biopsies. In all, 300 consecutive patients underwent 21-sample prostate biopsies, followed by RP. The protocol consisted of sextant, three midline, six far lateral and six transitional zone biopsies....

We evaluated to what extent abdominal straining is used for voiding in an asymptomatic, continent, healthy, middle-aged female population. A total of 32 women (mean age 49 +/- 6 years old) could be prospectively included. Technical investigations consisted of flowmetry, pressure flowmetry with EMG and electrosensation evaluation. Some data were com...

In a rat model, intravesical oxybutynin was recently shown to suppress pelvic afferent nerves. This study evaluates if a similar effect exists after systemic administration of oxybutynin. Twenty-four single afferent bladder nerves were identified in 15 rats. Based on their conduction velocities they were grouped as C or Adelta fibers. Bladder filli...

To study the effect of physiological and supraphysiological filling rates on the response pattern of single fibre pelvic nerve afferents of the rat urinary bladder. A total of 37 single afferent bladder units were identified electrophysiologically and their mechanosensitive properties studied. Afferent activity of 13 units was studied at filling ra...

To review the side effects of local injections of botulinum A toxin (BTX-A). A medline search for publications about adverse events after injection of BTX-A for lower urinary tract dysfunctions. We found four publications that report generalised side effects after BTX-A injection for detrusor overactivity (two) and detrusor-sphincter dyssynergia (t...

To establish normative current perception threshold (CPT) values with neuroselective sine-wave current in the lower urinary tract and to compare these values with square-wave current CPTs. 10 female and 8 male healthy volunteers were used for this study. A filling cystometry was performed and CPTs were determined with square-wave current at a frequ...

Combined pathology of the lower urinary tract with anorectal anomalies is frequent. Examples are: the concurrence of urinary and faecal incontinence, urinary incontinence and constipation, with or without the association of uterovaginal prolapse. The basis of this simultaneous occurrence can be found in the common embryologic origin, anatomical rel...

Chronic prostatitis is a frequent disease with a difficult diagnosis and treatment. A proper knowledge of the symptoms and the four glass test make a correct diagnosis possible in general practice. The four glass test is not easy to perform and is uncomfortable for the patient. A two glass test or pre-post massage test may be an alternative.