[Prospective epidemiological study of arterial hypertension in middle and old age]. / Prospektivno epidemiologichno prouchvane na arterialnata khipertoniia v naprednala i starcheska vuzrats.

The arterial hypertension frequency among the advanced and old age population was studied at 5 year intervals in 4 villages in the Rhodope mountains. 1777 persons were examined--725 in advanced and old age and 1052 young persons. The high frequency of arterial hypertension among the advanced and old age population is impressing--47.94% in the second examination. The frequency is higher in women. In advanced and old age the arterial hypertension is 3-4 times more frequent which is due to the sharply increased frequency of high arterial systolic pressure in these two age groups. In prospective plan the spread of arterial hypertension continues to increase especially in old age but the disease in this age is about 10% less frequent than in advanced age. The increasing frequency of arterial hypertension in advanced and old age is attributed mostly to the changed working and living conditions of the population.

[Gastric secretion in diabetes]. / Stomashnata sekretsiia pri diabet.

Gastric secretion was investigated in 26 patients, mainly with mature age diabetes and mixed type after a maximal stimulation with pentagastrin (6 microgram/kg). No significant difference was established as compared with the healthy subjects. Hypo- and achlorhydria were found in 19.2 per cent of the patients and hyperchlorhydria in 15.4 per cent. Diabetes duration over 5 years, hyperglycemia over 200 mg%, late degenerative syndrome and insulin treatment reduce significantly the majority of the indices of gastric secretion.