Correlation of geomagnetic activity with implantable cardioverter defibrillator shocks and antitachycardia pacing.

ABSTRACT:

Objective

To investigate a potential relationship between implantable cardioverter defibrillator (ICD) therapies and daily geomagnetic activity (GMA) recorded in a large database.

Patients and methods

The ALTITUDE database, derived from the Boston Scientific LATITUDE remote monitoring system, was retrospectively analyzed for the frequency of ICD therapies. Daily GMA was expressed as the planetary K-index and the integrated A-index and was graded as levels I (quiet), II (unsettled), III (active), and IV (storm).

Results

A daily mean ± SD of 59,468±11,397 patients were monitored between January 1, 2009, and May 15, 2012. The distribution of days according to GMA was as follows: level I, 924/1231 (75%); level II, 226/1231 (18%); level III, 60/1231 (5%); and level IV, 21/

SUBMITTER: Ebrille E 

PROVIDER: S-EPMC4807870 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature