Change of External Urethral Sphincter Function in Prostatic Patients
| Autor: | Jun Shimazaki, Tomonori Yamanishi, K. Yasuda, Masaki Tojo, K. Nagashima, Naoto Murayama |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Male
medicine.medical_specialty Adenoma Urology Urinary Bladder Prostatic Hyperplasia urologic and male genital diseases Urethral function Muscle hypertrophy Urethra Prostate Pressure medicine Humans Aged Urinary retention business.industry Prostatic disease Urethral sphincter Receptors Adrenergic alpha Urinary Retention medicine.disease Urodynamics Neck of urinary bladder medicine.anatomical_structure medicine.symptom business |
| Zdroj: | Urologia Internationalis. 47:43-47 |
| ISSN: | 1423-0399 0042-1138 |
| DOI: | 10.1159/000282248 |
| Popis: | External urethral function was urodynamically examined in 13 patients with benign prostatic hypertrophy (BPH) associated with chronic urinary retention and in 5 volunteers. Prevoiding drop in external urethral sphincter pressure was noted in all the volunteers, whereas it was not found in 6 of the 13 cases of BPH. Bladder neck opening pressure was higher in these 6 cases (p less than 0.05). After administration of phentolamine, prevoiding drop was noted in 5 of these 6 cases, and bladder neck opening pressure decreased so much that there was no significant intergroup difference. The above results mean that the increase in alpha-adrenergic receptors makes the prostate, which has been already hypertrophied, less elastic, inhibiting external urinary sphincter function. |
| Databáze: | OpenAIRE |
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