Magnetic resonance imaging of marrow heterotopia in haemoglobinopathy.

The MRI findings of masses of MH in three patients suffering from thalassaemia major, sickle-cell anaemia and thalassaemia intermedia, respectively, are presented. There was good correlation between the MRI findings and the conventional radiology or CT appearance of the masses. The masses produced a low intensity signal, similar to that of the adjacent marrow of the thoracic spine, while they were surrounded by a high-intensity signal rim attributed to a layer of fat surrounding the masses.

Long-term experience in percutaneous transluminal dilatation of renal artery stenosis.

Percutaneous transluminal dilatation was attempted in 65 patients with renovascular hypertension. In five cases (8 percent), percutaneous transluminal dilatation could not be performed for technical reasons. In the remaining 60 patients (35 with atherosclerotic stenosis and 25 with fibromuscular dysplasia), both mean systolic and diastolic pressure fell immediately after percutaneous transluminal dilatation and remained significantly lower for a period of up to five years.

[Renovascular hypertension: surgery, dilatation or drugs?].

The effect of various therapeutic procedures (surgery, percutaneous transluminal dilatation and antihypertensive drugs) was analyzed in 161 patients with renovascular hypertension. The results show that each of the three methods effectively lowers blood pressure. However, marked differences in pretreatment clinical and laboratory data among the three groups were observed, which were most probably caused by different selection criteria before submitting the patient to a given therapeutic regime.

[Fibromuscular renovascular hypertension: comparison of surgery, transluminal dilatation and drug therapy].

82 patients with fibromuscular renovascular hypertension have been studied. 33 patients were treated surgically (group I), 28 underwent transluminal dilation (group II) and 21 received drug treatment (group III). After a follow-up period of 2.

[Clinical and angiographic follow-up of vascular injuries of the major arteries of the extremities].

Eighteen patients with major vessel trauma were reviewed three years after the accident. The follow-up included clinical examination and angiography. The morphological results were compared to the applied surgical technique of vessel repair.

Transluminal dilatation of experimental hydronephrosis in dogs: acute and chronic effects, haemodynamic changes, and histological findings.

In the present study the feasibility and effectiveness of transureteral dilatation with a double-lumen balloon-tipped dilatation catheter was investigated. In 6 dogs with experimentally induced unilateral fibrotic stenosis and hydronephrosis a total of 13 dilatations were performed through a cutaneous ureteroneostomy. The stenosis diameter could markedly be distended from 1.

Problem cases in renovascular hypertension.

The clinical course and response to therapy of 16 patients with various complex forms of renovascular hypertension were investigated. Reconstructive surgery and/or transluminal dilatation was either ineffective (n = 5) or could not be performed for technical reasons (n = 11). The group contained 7 patients with multilocular fibromuscular disease involving both renal arteries, two cases with multiple arteriosclerotic vascular occlusions, 3 patients with branch renal artery aneurysms, 3 with renal artery stenosis in a solitary kidney and one patient with renal artery stenosis and contraction of the contralateral kidney due to a non-vascular cause.

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.

[Renovascular hypertension: comparison between transluminal dilatation and surgical procedures].

Percutaneous transluminal dilatation (PTD; n = 45) was compared with surgical procedures (n = 51) in 96 patients with renovascular hypertension. Since cases with atherosclerotic stenosis (ASS) are known to show a different response to surgery than those with fibromuscular dysplasia (FMD), group-specific analysis was performed. In their two subgroups (ASS and FMD) both surgical and dilated patients showed comparable mean age and sex distribution and serum creatinine.

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.

[Incidence and clinical significance of thromboses and thrombo-embolic complications in nephrotic syndrome patients].

Chest X-ray, pulmonary isotopic photoscanning. Doppler sonography of iliac and femoral veins, inferior venacavagram and phlebography of the renal veins have been performed in 26 patients with nephrotic syndrome in order to determine the frequency and localization of thromboses and thromboembolic complications in these patients. 7 of 26 patients (26.

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.