"Clinical recommendations advising against the regular consumption of caffeinated products to prevent disturbances of the heart's cardiac rhythm should be reconsidered, as we may unnecessarily be discouraging consumption of items like chocolate, coffee and tea that might actually have cardiovascular benefits," said Gregory Marcus from UCSF. Excessive premature atrial contractions (PACs) have beenshown to result in atrial fibrillation, stroke and death, while excessive premature ventricular contractions (PVCs) have been shown to result in increased heart failure, coronary artery disease and death. Currently it is believed that regular caffeine consumption causes heart- or stroke-related morbidity.
Coffee lovers, relax! Contrary to current belief, regular caffeine consumption does not lead to extra heartbeats, which causes heart- or stroke-related morbidity and mortality in rare cases, scientists, including one of Indian-origin, have found."This was the first community-based sample to look at the impact of caffeine on extra heartbeats, as previous studies looked at people with known arrhythmias," said lead author Shalini Dixit, a fourth-year medical student at UCSF.Both abnormalities have been tied to caffeine consumption through studies and trials, but these studies were performed several decades ago and did not use PACs and PVCs as a primary outcome.
Researchers analysed 1,388 randomly selected participants from the National Heart, Lung, and Blood Institute (NHLBI)Cardiovascular Health Study database of nearly 6,000 patients, excluding those with persistent extra heartbeats.They were given a baseline food frequency assessment and 24-hour ambulatory electrocardiography monitoring. Frequencies of habitual coffee, tea and chocolate consumption were determined through a survey.
The findings were published in the journal of the American Heart Association.Of the total participants, 840 (61 per cent) consumed more than one caffeinated product daily.It is the largest study to date to have evaluated dietary patterns in relation to extra heartbeats.33rd Day Of Lockdown Total Cases 26,283 1,835 Recovered 5,939 443 Deaths 825 44 weft accumulator parts Maharashtra.
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