[Pheochromocytoma with hemorrhagic necrosis and rupture with symptoms of acute abdomen and shock].

A case of a pheochromocytoma with haemorrhagic necrosis resulting in signs of acute abdomen with shock is reported. Diagnosis of a ruptured adrenal tumor was made by CT scanning. Elevated urine and plasma catecholamines as well as histological examination of the removed tumor confirmed the clinical suspicion of pheochromocytoma.

[Effects of 4-hour erect posture and furosemide on the blood level of atrial natriuretic peptide in patients with primary arterial hypertension].

The arterial pressure, the pulse frequency, the concentration of arterial natriuretic peptide (ANP), the aldosterone++ concentration and the plasma renin activity were determined in patients with primary hypertension after administration of furosemide in conditions of active assuming of erect position. The ANP concentration was lowered in that conditions both in the patients and in healthy subjects.

[Correlations of atrial natriuretic peptide and catecholamine levels in the blood during surgical removal of pheochromocytoma].

Atrial natriuretic peptide concentrations (ANP) were determined in 4 patients with pheochromocytoma during its surgical removal. There was no correlation among ANP level, plasma catecholamines concentrations and blood pressure. Increase of plasma ANP concentration after tumor removal can be explained by simultaneously observed hypervolemia.

[Atrial natriuretic peptide in patients with primary arterial hypertension].

Atrial natriuretic peptide (ANP) activity was studied in 33 males with borderline and established essential hypertension. No significant differences of serum ANP concentration were stated in patients with borderline and established uncomplicated hypertension in comparison with the control group.

Clinical application of carotid electrosphygmography.

A short historical review of sphygmography and a description of the contour together with the genesis of the arterial pulse wave is given. An own procedure of quantitative analysis of the carotid sphygmogram is described. The scope of these investigations was an attempt to determine sphygmographic criteria for arterial distensibility, showing the degeneration of the arteries.

Comparative examination of the pulse of both right and left carotid arteries.

The technique of CRESG secured on both arteries simultaneously is applied as a noninvasive diagnostic tool. A group of 42 persons (healthy and patients, 7 females and 35 males) aged 19--66 years was examined. In 14 of them X-ray angiography and in 5 of these 14 cases the additional surgical procedure confirmed the diagnosis.

Sphygmographic assessment of arterial distensibility in patients at risk of degenerative arterial disease.

The paper deals with the application of carotid resonance electrosphygmography (CRESG) to primary arterial hypertension (PAH) and primary hyperlipoproteinaemia (PHLP). On a group of 145 patients with PAH (and a control group of 63 healthy persons) aged 20--50 years and on a group of 30 patients with PHLP (plus a control group of 43 healthy persons) aged 30--60 years, the records were taken bilaterally. In both groups significant quantitative differences in the sphygmograms were found which are indicative for reduced distensibility and indirectly for the degeneration of the arterial wall.