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Biomedical subjects

R Leutschaft

Publications and source records attributed to R Leutschaft.

At least 19 recordsLinked to original sources
PubMed1982

[Pacemaker therapy in bradycardial heart rhythm disorders].

A description of the various pacemaker models with their functional unit is presented. The indication for permanent implantation is discussed in view of the different disturbances in cardiac rhythm. The main indication for pacemaker therapy is the permanent or intermittent bradycardial rhythm disturbance accompanied by syncope or severe dizziness.

Bradycardia↗
PubMed1982

Citrate in urine and serum and associated variables in subgroups of urolithiasis. Results from an outpatient stone clinic.

Outpatient renal stone formers belonging to the established urolithiasis subgroups and controls were examined with respect to urinary and serum citrate (Cit) and several associated variables. Only in the normocalciuric majority of calcium and in uric acid stone formers was Cit in 24-hour urine decreased, but was normal in 2-hour fasting morning, and in 3-hour postprandial urine following a Cit-free test meal. Serum Cit was elevated in normocalciuria, renal and resorptive hypercalciuria. This Cit constellation was associated with either normal (absorptive, renal hypercalciuria) or low (normocalciuria, uric acid stone formers) parathyroid gland function as assessed by serum parathyroid hormone and nephrogenous urinary cyclic AMP, except in patients with primary hyperparathyroidism. In 2-hour morning urine the magnesium/creatinine ratio (normocalciuria) and ammonia excretion (uric acid stone formers) were decreased, while ammonia in 24-hour urine was low in all stone formers. It is suggested that Cit metabolism is altered in renal stone disease in general, and that in normocalciuria, stone inhibitors (Cit; magnesium) may be deficient.

Adult↗
PubMed1979

[Patient survival with pacemaker (author's transl)].

The survival rate for age groups from 50--59, 60--69, 70--79, 80--89 was worked out from 1065 patients with implanted pacemakers form 1963 to the end of 1977. In all age groups the life expectancy was under the survival of the general population in the Federal Republic of Germany. Analysing the data it seems that two groups of different longevity superimpose in all age groups; the first group shows an unproportional high mortality rate in the first 12 months while the other has an almost identical survival to the tenth year. The initial high mortality rate respective to the increasing age probably results in accompaning diseases; in this aspect further studies are required.

Age Factors↗