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R J Opsomer

Publications and source records attributed to R J Opsomer.

At least 37 records · Page 2Linked to original sources
PubMed1995

[Laparoscopic treatment of recurrence and embolization failure of varicocele].

Varicocele is a benign pathology, for which the less invasive treatment is percutaneous embolisation. Literature reports results from 70 to 85% (1,2). Laparoscopic treatment seems to be a good alternative for patients suffering from a recurrence, or patients who can not be embolised. We report our experience concerning the first 13 patients treated with laparoscopic technic. In all 13 cases it was possible to practice the technic, and patients were cured.

Adolescent↗
PubMed1995

[Mucous prolapse of the urethra].

Urethral prolapse represent a rare cause of urological consultation. Frequent in older women, it also happens in under 10-year-old little girls with a racial predominance. For most cases, medical treatment and follow-up are sufficient, but failure of these or possible complications may necessitate a surgical correction. Circumferential excision and muco-mucous suture are effective treatments with very few complications. About four case-reports, we are reviewing here the literature and discussing etiopathogenic mechanisms and therapeutic options for this disease.

Aged↗
PubMed1994

Undetectable prostate-specific antigen in aging men.

Undetectable prostate-specific antigen was found in three aging men despite the absence of any prostatic surgery or exogenous hormonal deprivation. Clinical and elementary hormonal workup revealed the presence of secondary hypogonadism. This finding confirms the hormonal dependency of this prostatic marker and may, in some cases, explain the discrepancy between prostatic volume and the value of serum prostate-specific antigen.

Aged↗
PubMed1994

Long-term results and late recurrence after endoureteropyelotomy: a critical analysis of prognostic factors.

Of 102 consecutive endoureteropyelotomy cases followed for 1 to 10 years (mean 5) late recurrence was observed in 13% and long-term success was achieved in 73%. Of 67 cases with an available preoperative angiogram a strong association was noted between the existence of a vessel crossing the ureteropelvic junction and high grade hydronephrosis, and final failure and/or recurrence: long-term success rate was 39% when both factors were present and it was 95% when neither factor was present. Therefore, we recommend that the presence of a vessel should be determined preoperatively since it significantly influences the outcome.

Confidence Intervals↗
PubMed1994

[Electrophysiological study of the distal motor branch of the internal pudendal nerve].

The authors describe their experience with the Swash technique. It consists of the measurement of the latency over the distal segment of the motor branch of the pudendal nerve following a transrectal stimulation of the pudendal nerve during a rectal examination. The response is picked up from the anal sphincter by the use of a surface electrode and from the bulbocavernosus muscle with a needle electrode.

Adult↗
PubMed1994

[Varicocele: treatment via percutaneous approach].

The varicocele is benign pathology which sometimes involves disorders of testicular growth. Those can cause a hypofertility. We saw in a retrospective way the 243 patients having been treated by percutaneous embolisation from May 1985 to August 1993. At 150 patients being 1 year at least of postoperative retreat, 70% of cases present a cure, 15% of patients repeated and were taken again surgically. At 8% of patients, the embolisation was not technically possible for reasons of vascular anomalies or spasm of the vein during the procedure. The morbidity of this technique is low, this involves therefore a right choice of the treatment of the varicocele which does not prevent any surgical treatment in the event of repetition or in the event of technical failure.

Adolescent↗
PubMed1994

[Urinary continence after radical prostatectomy: importance of the vesico-urethral anastomosis. Objective evaluation].

Urinary continence after radical prostatectomy is frequently evaluated subjectively. The authors describe their technique of vesicourethral anastomosis and report their method of objective evaluation of postoperative urinary continence. At the 6th postoperative week, 15% of patients presented with severe incontinence. This percentage fell to 3.3% by the 16th postoperative week.

Adenocarcinoma↗
PubMed1993

Sudomotor skin responses following nerve and brain stimulation.

A comparative evaluation of sudomotor innervation to the limbs and perineum was made using electrical stimulation of the median nerve at the wrist and transcranial magnetic stimulation of the brain. Sympathetic skin responses (SSRs) were recorded from the palms (SSR-1), the soles (SSR-2) and the perineum (SSR-3). Normative data in 25 volunteers showed the following latencies in seconds: [table: see text].

Adolescent↗
PubMed1993

Do seminal or prostatic secretions play a role in local recurrence after radical prostatectomy for localized prostate cancer?

Neoplastic cellular contamination of the surgical bed may be responsible for late local failure after radical prostatectomy. Cytology analysis of the seminal and prostatic fluid collected intraoperatively was undertaken in 30 patients. Neoplastic cells were found in 2 patients both with seminal vesicle involvement. Although it is difficult to admit that tumor spillage during surgery would be a major cause of local recurrence, the presence of tumor cells in the ejaculate may be diagnostic of seminal vesicle invasion. All patients with pathologic stage T2 had a negative cytologic finding.

Body Fluids↗
PubMed1993

[Sympathetic evoked potentials of the perineum].

The authors describe the principles and indications of sympathetic evoked potentials recorded from the pelvic floor. The technique consists of an electrical stimulation of a somatic nerve (median nerve at the wrist or dorsal nerve of penis) with recording of the electrical activity induced by the sympathetic nerve terminals of the sweat glands from the perineal skin, using surface electrodes.

Evoked Potentials, Somatosensory↗
PubMed1993

[Uroradiology].

Radiology of the urinary tract has a great place in evaluating voiding dysfunction. The role of the radiologist is not limited to diagnosis of the sequelae of voiding dysfunction but he must provide information about causes, mechanisms and helps to provide a more accurate diagnosis. Projectional radiography (excretory urography, voiding cysto-urethrography) is still the best method of evaluation in spite of development of new imaging techniques (ultrasonography, computerized axial tomography, magnetic resonance imaging). Radiodynamic examination of the lower urinary tract is the best method of choice to study the complex functional problems involving those structures.

Female↗
PubMed1992

Muscle regeneration after endoureteropyelotomy?

Three specimens of ureteropelvic junction, obtained at dismembered pyeloplasty after successful endoureteropyelotomy, were studied. In the regenerative tissue, numerous cells were found with morphological, immunohistochemical and ultrastructural characteristics of mature smooth muscle cells; no regeneration of bundle arrangement was observed.

Desmin↗
PubMed1991

Neuromagnetic somatosensory homunculus: a non-invasive approach in humans.

The somatosensory homunculus has been identified during stimulation of median (at wrist and elbow), femoral, tibial and pudendal nerves of the left hemibody via the neuromagnetic imaging technique. The somatic representations of different body districts have been localized in the somatosensory cortex, by means of an equivalent dipole localization algorhythm. Dipole locations agree with the well-known somatotopic organization obtained with invasive techniques. The proposed method is, therefore, an important investigating tool for studies on normal and diseased subjects.

Evoked Potentials, Somatosensory↗