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Biomedical subjects

D Hauri

Publications and source records attributed to D Hauri.

At least 127 records · Page 7Linked to original sources
PubMed1983

A new concept of priapism based on the results of arteriography and cavernosography.

Four patients with priapism - 3 with idiopathic and 1 with post-traumatic etiologies - were examined by arteriography and cavernosography. The findings of these examinations as well as distinct clinical findings suggest that there are 2 different types of priapism. One is characterized by severe blood stasis within the corpora cavernosa with resulting compression of the deep arteries of the penis and reduction of arterial blood flow. In the other type, arterial flow into the corpora cavernosa and drainage into the veins are substantially increased. In this type, long-standing priapism does not seem to produce fibrosis of the corpora cavernosa with resulting impotence.

Adult↗
PubMed1983

Erection and priapism: a new physiopathological concept.

For normal erection two mechanisms are essential: the first provides increased arterial inflow, most probably this is obtained due to the activity of the intimal cushions within the arteriae helicinae and within the shunt vessels. The second mechanism uses increased arterial blood flow; this could be obtained due to the activity of the trabecular muscle fibers of the corpora cavernosa. In consequence, we would deal with two different types of priapism: one type--high-flow priapism--occurs at the level of the arteriae helicinae and the intimal cushions and provokes a high-flow situation, and the second type, with blood stasis in the corpora cavernosa, occurs at the level of the trabeculae due to persistent contraction of the smooth muscle fibers. The prognosis of the second type is much less favorable and should be cured by surgery within the first 48 h.

Humans↗
PubMed1983

[Vital complications in multicystic kidney degeneration (multicystic dysplasia)].

We present 2 cases from our clinic with complications due to unilateral multicystic dysplastic kidneys: 1 case with arterial hypertension, another case with a renal carcinoma in a multicystic dysplastic kidney. Compared with the 62 cases already published, these are the 2nd case of hypertension and the 3rd case of carcinoma in multicystic dysplastic kidneys. Because of such complications nephrectomy of multicystic dysplastic kidneys is indicated.

Adenocarcinoma↗
PubMed1983

[The trigone].

The embryologic genesis is important for understanding the structure of the trigone. Anatomy and innervation explain its function, thereby enabling us to differentiate the various forms of reflux.

Edema↗
PubMed1982

Arteriography of the penis in secondary impotence.

Twenty-four men aged 20-67 years (mean 42 years) were examined by selective arteriography for secondary impotence. The angiographic technique used as well as the normal anatomy and its variations are described. Arterial occlusive disease of vessels leading to the penis and the corpora cavernosa was found in 71% of the patients examined. This high incidence of arterial occlusive disease corresponds with the findings of other authors. The significance of these findings is discussed. In our limited experience of 3 patients, arterial anastomosis from the inferior epigastric artery to the corpora cavernosa has not been successful.

Adult↗
PubMed1982

[Incontinence following prostatectomy].

Urinary continence is guaranteed by many factors. The most important are an intact bladderneck and a normally operating proximal urethra. Predominantly the smooth muscular system is involved. The striated external sphincter is primarily not responsible for continence. At prostatectomy the bladderneck and a great part of the smooth muscles of the proximal urethra inevitably are removed. Postoperatively only a small distal segment of the posterior urethra continues to guarantee continence. This segment may be changed by the growth of the prostate and can be destroyed by an untrained operator. Then, urinary incontinence is the result.

Humans↗
PubMed1981

Renal venous renin activity in various forms of curable renal hypertension.

The diagnostic and predictive value of renal venous renin determinations was investigated in 73 patients who had various forms of hypertension associated with unilateral renal disease and who were operated upon. Patients with fibromuscular hyperplasia showed a markedly higher cure rate than cases with arteriosclerotic renal artery stenosis (64% vs. 25%) and were less frequently not improved (4% vs. 12%). Patients with unilateral (non-vascular) small kidney and patients with unilateral hydronephrosis showed comparable high cure rates (53% and 50%, respectively), whereas in no patient with a unilateral renal cyst did postoperative blood pressure return to normal. In the present study no statistically significant correlation was found between postoperative pressure reduction and PRA-ratios in either the whole group of patients or in the various subgroups. A negative PRA-ratio (less than or equal to 1.4) was found in 36% of all cured patients. In particular, cured patients with fibromuscular hyperplasia showed a high percentage (38%) of falsely negative tests. As expected, characteristic differences were observed in simple clinical data between cured and improved patients. Patients with normal postoperative blood pressure were significantly young (34.7 +/- 13.6 years) than improved cases (47.3 +/- 10.8 years; P less than 0.001) and cured patients showed lower preoperative blood pressure values (192 +/- 29/119 +/- 15) than improved ones (214 +/- 31/126 +/-117 mm Hg). Thus our results document a limited prognostic value of renal venous renin determination in patients with hypertension due to unilateral renal disease.

Adolescent↗
PubMed1981

[Strictures of the urethra: operative treatment and results (author's transl)].

Results after internal urethrotomy under direct vision are comparable to the results after open plastic procedures for strictures of the urethra. Internal urethrotomy at present is preferred to plastic procedures because of its simplicity. But plastic procedures maintain their indication for some special types of strictures. Postoperative treatment after internal urethrotomy under direct vision varies with the etiology of the stricture. In iatrogenic strictures results are better using an indwelling catheter for a period up to 6 weeks after internal urethrotomy under direct vision.

Catheters, Indwelling↗