Differentiating Pericardial Diseases with JVP! Tackling Constrictive Pericarditis vs. Cardiac Tamponade can be challenging, but your JVP waveforms offer a brilliant clinical clue! ✨ The Y descent on the JVP tracing is your go-to differentiator. Here's a quick clinical pearl: ➡️ Rapid Y Descent: This is a hallmark of Constrictive Pericarditis. The stiff, constrictive pericardium restricts early diastolic filling but allows rapid, abrupt filling once the pressure equalizes, causing a sharp 'Y' dip