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Biomedical subjects

T Gerstenberg

Publications and source records attributed to T Gerstenberg.

7 recordsLinked to original sources

Electrical activity of corpus cavernosum during flaccidity and erection of the human penis: a new diagnostic method?

We investigated 7 normal men and 1 diabetic patient with erectile dysfunction. Electromyography electrodes were placed in the corpus cavernosum of the penis and electrical activity was recorded during flaccidity. With sexual arousal the activity decreased and tumescence was initiated. During tumescence and full erection the electrical activity of the corpus cavernosum almost ceased but in the diabetic patient (neurogenic impotence) an increase was observed. This discoordination might be the cause of the erectile dysfunction. Recording the electrical activity of the corpus cavernosum in patients with suspected neurogenic erectile dysfunction could become clinically valuable, since this is the first test possible to study the function of the autonomic motor system that normally regulates penile function.

Adult

Partial cystectomy for the myogenic decompensated bladder with excessive residual urine. Urodynamics, histology and 2-13 years follow-up.

Partial cystectomy was performed for myogenic decompensated bladder with excessive residual urine in 11 patients, in whom training instructions and pharmacological treatment were unsuccessful. Postoperatively, the patients were followed for 2-13 years (median 4 years). Both symptoms and residual urine were reduced permanently. Urodynamic testing had demonstrated underactive detrusor function in all. The supposed etiology was infravesical obstruction in 4, overdistension due to sensory bladder paresis in 3 and unknown in 4. Histological examination of the resected bladders showed focal degeneration of the smooth muscle cells (detrusor myopathy) in 7, transmural edema and vast deposits of collagen in 8, mastocytosis in 3 and eosinophilic cystitis in 1. In conclusion we regard partial cystectomy an alternative to clean intermittent self-catheterization in selected patients with excessive residual urine.

Adult

Anaerobic, non-clostridial fasciitis and myonecrosis of the abdominal wall. Pure anaerobic infection originating from neglected inflammation of an urachal remnant.

A pure anaerobic infection of the abdominal wall of a 40-year-old man is described. The infection originated from an urachal remnant. Seven different bacterial strains were isolated. Even though no clostridia were involved, the infection caused extensive necrosis of the abdominal wall including both fascia and muscles.

Abdominal Muscles

Spontaneous non-aneurysmal rupture of the renal pedicle artery due to acute vasculitis in polyartheritis nodosa--with survival.

The first published case is presented of survival following a ruptured renal artery due to acute vasculitis in polyarteritis nodosa (PAN). Spontaneous, massive retroperitoneal hemorrhage was the presenting symptom in this case. Emergency nephrectmoy was carried out as a life-saving procedure. Postoperative studies revealed that only the kidneys and joints were involved in the disease.

Female

Bladder function after hemipelvectomy.

Bladder function was studied in seven patients, 5 to 90 months after hemipelvectomy. The urological investigation comprised i.v. urography, micturition-cysto-urethrography, cystoscopy, cystometry and urodynamic investigations in terms of simultaneous flow and pressure measurements. Hemipelvectomy was found not to give rise to disturbances in micturition.

Adolescent