Note that left atrial enlargement is not able to be diagnosed in the presence of atrial fibrillation because this rhythm is defined by erratic atrial activity and no visible P wave on the ECG.

The ECG criteria for diagnosing right atrial enlargement (RAE) are as follows: The P wave amplitude in lead II > 2.5 mm, or The upward deflection of the P wave in lead V1 > 1.5 mm in amplitude.

Left atrial enlargement has links to several conditions, including atrial fibrillation and heart failure. Learn more about causes and treatment.

Right atrial enlargement occurs when the right atrium, one of the heart's upper chambers, is larger than normal. The right atrium is the first entry point of blood returning to the heart from ...

Long-term drinking of even moderate amounts of alcohol may enlarge the left atrium and thereby contribute to atrial fibrillation (AF), according to a study published online Sept. 14 in the Journal ...

However, in a subgroup of patients with left atrium enlargement, additional low voltage-area ablation reduced AF recurrence by 40%. The study suggests that routine ablation targeting diseased ...

Left atrial enlargement (LAE) has adverse prognostic implications in hypertension. We sought to determine the accuracy of five electrocardiogram (ECG) criteria for LAE in hypertension relative to ...

I am in my early twenties two family members have died before the age of 50 due to heart attacks. I have occasional high blood pressure and my family has a history of cholesterol and diabetes. I was ...

Aside from aging itself, obesity appears to be the most powerful predictor of left atrial enlargement, upping one's risk of atrial fibrillation (the most common type of arrhythmia), stroke and ...

The ECG shows incomplete right bundle branch block. On auscultation the first heart sound is split, and a faint systolic murmur is heard over the second left intercostal space.

The left atrium is one of the four chambers of the heart. It’s located in the upper half of the heart and on the left side of your body. The left atrium receives newly oxygenated blood from your ...