Preload is a fundamental concept in cardiovascular physiology, especially in the context of pressure-volume (PV) loops. It refers to the ventricular wall stress or stretch at the end of diastole, determined by the volume of blood returning to the heart. Understanding preload is essential for clinicians, physiologists, and researchers as it directly influences cardiac function … Read more
The pressure-volume (PV) loop is a critical diagnostic tool for understanding cardiac mechanics, offering insights into the dynamic relationship between ventricular pressure and volume during a cardiac cycle. By comparing the mitral stenosis PV loop with that of a normal heart, we can observe profound alterations in the morphology that reflect the underlying pathophysiology. In … Read more
Examining cardiac function in patients supported by extracorporeal membrane oxygenation (ECMO) can be complex due to the intricate interactions between the heart and the ECMO circuit. Pressure-volume (PV) loops have emerged as a valuable tool to monitor cardiac function in real time, providing clinicians with dynamic insights into a patient’s heart performance while on ECMO. … Read more
The LV PV loop (left ventricular pressure-volume loop) is a powerful tool in cardiology, specifically in the realms of cardiac surgery and device therapy. It provides a graphical representation of the relationship between left ventricular pressure and volume during a cardiac cycle, giving invaluable insights into heart function. These loops are integral to intraoperative assessments … Read more
1. Introduction Congestive heart failure (CHF) is a complex condition where the heart struggles to pump blood efficiently, leading to inadequate circulation and fluid buildup in the body. Understanding the pressure-volume (PV) loop—a graphical representation of the cardiac cycle—is crucial for grasping the physiological changes that occur in CHF. The PV loop is influenced by … Read more
Heart failure is a complex clinical condition that affects millions of people worldwide. Accurate diagnosis and management of heart failure are critical for improving patient outcomes, and one of the most sophisticated tools used in this process is the Pressure-Volume (PV) loop. In clinical cardiology, PV loops provide valuable insights into the mechanical function of … Read more
Introduction Pressure-volume (PV) loops have become an essential tool in cardiovascular research and clinical trials. These sophisticated graphical representations of the relationship between pressure and volume in the heart during a cardiac cycle offer deep insights into the mechanics of heart function. Researchers and clinicians have leveraged PV loops to advance the understanding of heart … Read more