Introduction

Premature ventricular complex (PVC), characterized by an early depolarization of ventricular myocardium with a wide and abnormal QRS complex without any preceding P wave, can typically result from ischemia, hypoxia, hypovolemia, cardiomyopathy, electrolyte abnormalities, and medications [1]. PVCs are commonly found using surface electrocardiography (ECG) and generally associated with organic heart disease. However, they can occur without any structural heart disease (SHD). Although idiopathic PVCs (IPVCs) are determined as benign arrhythmias, they are associated with an increased risk of mortality [2]. To the best of our knowledge, this is the first case report of Ramadan-induced ventricular arrhythmia because of long intermittent fasting period in the literature.

Another article suggests this:

Intermittent fasting linked to higher risk of cardiovascular death, research suggests

A new analysis challenges the notion that restricting eating to a limited window of time is good for heart health.

But an analysis presented Monday at the American Heart Association’s scientific sessions in Chicago challenges the notion that intermittent fasting is good for heart health. Instead, researchers from Shanghai Jiao Tong University School of Medicine in China found that people who restricted food consumption to less than eight hours per day had a 91% higher risk of dying from cardiovascular disease over a median period of eight years, relative to people who ate across 12 to 16 hours.

It’s some of the first research investigating the association between time-restricted eating (a type of intermittent fasting) and the risk of death from cardiovascular disease.

The analysis — which has not yet been peer-reviewed or published in an academic journal — is based on data from the Centers for Disease Control and Prevention’s National Health and Nutrition Examination Survey collected between 2003 and 2018. The researchers analyzed responses from around 20,000 adults who recorded what they ate for at least two days, then looked at who had died from cardiovascular disease after a median follow-up period of eight years.

However, Victor Wenze Zhong, a co-author of the analysis, said it’s too early to make specific recommendations about intermittent fasting based on his research alone.

“Practicing intermittent fasting for a short period such as 3 months may likely lead to benefits on reducing weight and improving cardiometabolic health,” Zhong said via email. But he added that people “should be extremely cautious” about intermittent fasting for longer periods of time, such as years.