Study regarding heart failure and ventricular pacing

Hello All

The study I am refering to was done by cardiologists from the Robert Wood Johnson Medical School of New Brunswick
as follows:

Pacemaker study sees increase in heart failure rates
Filed under: Cardiology


Worrisome results, in a study of patients with implanted pacemakers, have been published by a group of cardiologists from the UMDNJ-Robert Wood Johnson Medical School in New Brunswick. The New Jersey Star-Ledger reports:

Patients with pacemakers are at significantly higher risk of dying of heart failure than those without the devices, according to a study released yesterday by New Jersey researchers.
The findings are based on a study by a team of cardiologists at the UMDNJ-Robert Wood Johnson Medical School in New Brunswick. They examined the medical records of more than 11,000 New Jersey patients who had pacemakers implanted between 1997 and 1999. The patients, none of whom had prior diagnoses of heart failure, were followed until 2001, with the median length of time 33 months.

What the cardiologists found is that deaths from heart failure -- which happens when the heart isn't pumping enough blood -- occurred in 81 patients with pacemakers, compared with 53 patients in the control group who didn't have pacemakers implanted. The study also found that heart failure-related hospitalizations were more common among the pacemaker group.

Their research appears in the March issue of the American Journal of Cardiology

Robin


2 Comments

Is this a valid study?

by ted - 2008-04-01 07:04:33

I am not a researcher and I don't know the answer but is it possible that people who have needed a pacemaker are just generally more prone to have heart problems than "normal" persons, and thus more likely to develop heart failure? So how do we know that the pacemaker is the cause?

Gotta have the facts...

by dward - 2008-04-01 08:04:48

The American Journal of Cardiology is published twice per month.

In the March 1 2008 edition, this is the only article in the journal relating to Pacemakers:

Utility of Isoproterenol in Unmasking Latent Escape Rhythm in Pacemaker Dependent Patients Undergoing Pacemaker Replacement 631
by
Stephen M. Chihrin, Uwais Mohamed, Raymond Yee, Lorne J. Gula, George J. Klein, Allan C. Skanes, and Andrew D. Krahn

The March 15th Edition has no articles relating to PMs

Oh, and the Robert Wood Johnson Medical School is in New Jersey not New Brunswick.

Just so you know.

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