Suggested testing procedures and standards for artificial pacemakers.
Explore the source record for details and available documents.
SEARCH · PubMed Health
Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
A 54-year-old man, who was treated with propranolol for severe angina pectoris, developed severe symptomatic bradycardia during this treatment. Coronary angiography revealed severe coronary artery stenosis, but a bypass operation was judged to be technically impossible. When propranolol was withdrawn, the effort angina deteriorated and anginal pains even developed at rest. A favourable symptomatic effect was obtained with a combined regimen of propranolol and a permanent demand pacemaker. Nitroglycerin consumption was reduced from about 20 to less than 3 tablets a day. His condition remained stable during the observation period of 44 months. The symptomatic effect of a beta-blocking agent combined with a permanent pacemaker is considered to be due to the reduced inotropic and chronotropic effect of propranolol during exercise as well as the elimination of a bradycardia-induced angina at rest. Placebo effect to a certain extent cannot be excluded.
This paper discusses shortcomings of conventional Holter monitoring in paced patients and describes a new technique which permits reliable detection of intermittent pacemaker malfunction and counts pacemaker activity during the recording period. Evaluation of the system of 64 consecutive patients revealed 15 with unsuspected episodic pacemaker dysfunction.