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Biomedical subjects

S Raz

Publications and source records attributed to S Raz.

At least 127 records · Page 7Linked to original sources
PubMed1985

Effect of abdominal perineal resection on genitourinary tract.

One hundred ten patients at the UCLA Medical Center underwent abdominal resection from 1974 to 1980. The following effects on the urinary tract are discussed: surgical complications, anatomic changes, and functional complications. Urologic investigation and management of incontinence will be presented.

Abscess↗
PubMed1985

Urethral replacement using ileum with an intussuscepted ileal valve for continence.

Numerous techniques for replacing the urethra have been previously described, but attempts to provide continence have rarely been satisfactory. Urethral replacement using ileum with an ileal intussuscepted valve for continence has been successfully performed in ten female dogs. Eight of them were available for a 1 to 6-month followup. This neo-urethra has provided good continence and can be easily catheterized. The clinical usefulness of this technique in the treatment of total urethral loss in humans needs to be further explored.

Animals↗
PubMed1985

Transvaginal closure of the bladder neck and placement of a suprapubic catheter for destroyed urethra after long-term indwelling catheterization.

We report on 6 women with continuous urinary incontinence as a late complication of an indwelling urethral catheter for neurogenic bladder. Pressure necrosis by the balloon resulted in progressive destruction of the entire urethra, with subsequent incontinence despite the catheter. Surgical attempts at bladder neck closure to correct the incontinence generally have been unsuccessful. Instead of supravesical urinary diversion, we performed transvaginal closure of the bladder neck and percutaneous placement of a permanent suprapubic tube cystostomy. All 6 patients remained dry after closure and none has shown upper urinary tract deterioration at followup for as long as 5 years.

Adult↗
PubMed1985

Delayed diagnosis of voiding dysfunction: occult spinal dysraphism.

The recognition of spinal dysraphism as a potential cause of voiding dysfunction is of the utmost importance if appropriate treatment and followup are to be initiated. We present 2 women with prolonged voiding dysfunction who had spinal dysraphism, intradural lipoma and related urodynamic abnormalities. The importance of initial symptom recognition, physical examination, urodynamic evaluation, appropriate treatment and periodic re-examination to detect progressive neurological impairment is emphasized.

Adult↗
PubMed1985

Office evaluation of female urinary incontinence.

The diagnosis and therapy of urinary incontinence in the female patient demand an orderly approach to this complex problem. In this article, the authors suggest a classification that can simplify the approach to the differential diagnosis; review the "catheterization test," a simple diagnostic modality; and briefly discuss some of the surgical and nonsurgical options for therapy. The primary emphasis is on the evaluation of the loss of urine per urethra.

Female↗
PubMed1985

Transvaginal needle bladder neck suspension.

Like the transabdominal bladder neck suspension, the aim of the transvaginal needle suspension of the bladder neck is to suspend the bladder neck and urethra in a fixed retropubic position. Because the transvaginal technique does not require the splitting of the abdominal wall fascia, postoperative discomfort and convalescence may be lessened. Different techniques of transvaginal needle bladder neck suspension, including suspension of the bladder neck with a fascial sling, are discussed in detail.

Fasciotomy↗
PubMed1985

Genitourinary fistulae. Vaginal approach for repair of vesicovaginal fistulae.

Controversy still remains concerning the timing of repair, the type of approach, and the technical guidelines most likely to prevent recurrence of both radiated and nonradiated vesicovaginal fistulae. The authors advocate the transvaginal approach because it avoids a cystotomy and involves minimal blood loss and consequently is followed by less postoperative discomfort and a shorter hospital stay. Included in this discussion are the techniques and results of the transvaginal approach for simple vesicovaginal fistulae as well as for complex cases and radiation fistulae.

Catheters, Indwelling↗
PubMed1985

The pathophysiology of stress incontinence.

The factors contributing to stress incontinence of urine are reviewed and categorized with respect to their effects on coaptation and compression of the urethra. Intrinsic urethral dysfunction and poor anatomic support are discussed from both a functional and a pathophysiologic approach.

Estrogens↗
PubMed1984

Modified Pereyra bladder neck suspension after previously failed anti-incontinence surgery. Surgical technique and results with long-term follow-up.

Fifty-four female patients with persistent or recurrent stress urinary incontinence who underwent between 1 and 9 previously unsuccessful operative procedures were treated with transvaginal mobilization of the urethra and anterior vaginal wall with subsequent modified Pereyra bladder neck suspension. The important points of this technique are reviewed. With minimum follow-up of twenty-four months, a 94 per cent cure rate was achieved with minimal morbidity in this difficult group of patients.

Adult↗
PubMed1984

Two potentially arrhythmogenic mechanisms of adrenaline action in cardiac muscle.

The effects of rate changes and 'premature' stimulation on the slow inward current of cardiac muscle were studied in the frog atrium. The effects of adrenaline under these conditions was investigated. It was found that adrenaline markedly accelerates the repriming kinetics of the slow inward channel. Adrenaline at low concentrations, sufficient to augment this current, also increases the effect of rate changes. Thus there is a larger second inward current 'staircase' in the presence of adrenaline. It is proposed that the combination of these effects is a possible mechanism by which adrenaline can induce cardiac disorders of rhythm.

Animals↗
PubMed1984

Radiation therapy in carcinoma of the prostate: a contributing cause of urinary incontinence.

We believe that radiation therapy as a postoperative adjuvant or preceding salvage prostatectomy for carcinoma is particularly conducive to the complication of urinary incontinence by virtue of its sclerosing effect on residual sphincter mechanisms. Obviously, such dual therapy will continue to prevail in the foreseeable future but patients should be notified of the added risk and be prepared for further treatment of the incontinence. Unfortunately, these patients have an extra risk of complications and failure from anti-incontinence operations.

Adult↗
PubMed1984

Injection injuries of the recurrent laryngeal nerve.

We describe a new etiology for vocal cord paralysis. Two patients, chronic drug abusers, had in time lost access to the usual peripheral veins, and proceeded then to have the drugs injected repeatedly into the jugular veins in the neck. Both presented with persistent hoarseness and were found to have a unilateral vocal cord paralysis. Neck exploration was undertaken to evaluate this pathology, to rule out other obscure disease, and to decompress the recurrent laryngeal nerve within the carotid sheaths. Severe fibrosis was encountered in the neck of one patient and mild fibrosis in the other. A biopsy specimen from the adjacent autonomic portion of the vagus nerve was submitted. Although the follow-up period was short, no definite return of function was observed. A discussion of injection injuries to nerves is presented.

Adult↗