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Biomedical subjects

M Levander-Lindgren

Publications and source records attributed to M Levander-Lindgren.

6 recordsLinked to original sources
PubMed1979

A new concept for atrial triggered pulse generators.

In order to avoid the potential risk of a short refractory period and the inconvenience of the electronic blocking mechanism at the highest synchronous rate with the conventional atrial triggered pulse generator, two more functions have been added to the normal atrial triggered (VAT) pulse generator. First, it has been designed to be ventricular inhibited; second, a highest synchronous rate detector has been added. When the highest synchronous rate of about 140 is exceeded, the atrial signals are blocked and the frequency of the basic rate generator is increased to about 130. Two patients could hardly feel the change from atrial triggered pacing to ventricular inhibited stimulation, and both were able to work at higher loads with this type of pacing compared with the conventional atrial triggered pulse generator.

Arrhythmia, Sinus↗
PubMed1978

ECG-tape recording for analysis of syncopal attacks before and during cardiac pacing.

ECG-tape recording has been utilized for diagnosis of transient attacks of syncope and dizziness both before and during cardiac pacing. The display unit can be utilized for automatic starting of the ECG writer according to markings made by the patient or bradycardia alarm. The method has proved extremely useful and convenient, which is illustrated by cases with different types of arrhythmia and pacemaker failure.

Ambulatory Care↗
PubMed1977

Detector electrode introduced by mediastinoscopy for atrial triggered cardiac pacing. A follow-up of electrode function in 82 patients.

An atrial detector electrode was introduced by mediastinoscopy in 82 patients requiring permanent cardiac pacing. There were no complications. An adequate P wave was recorded in 80 patients. During the following week, the P wave became ineffective in 5 patients; angina occurred in 2 and atrial arrhythmias in 2. Atrially triggered ventricular pacing established in 73 patients and was followed in 71 patients for a period of 1 to 113 months. In 17 cases, it had to be terminated because of an ineffective or unstable P wave,in 6 cases because of atrial arrhythmias, and in 4 cases because of advanced age and recurrent infections. The method is technically simple and place little stress on the patient.

Adult↗
PubMed1976

ECG telemetry for pacemaker check-up.

Experience from 1 000 ECG transmissions by telephone for check-up of pacemaker patients is reported. The method and its indications are described. The quality of the ECG is usually good, but sometimes there are unsuccessful transmissions, and the technical problems are discussed. An adequate analysis of cardiac pacing function could always be made. Furthermore, valuable information of different types of arrhythmia was gained on several occasions.

Arrhythmias, Cardiac↗