Electrophysiologic characteristics of cells spanning the left ventricular wall of human heart: Evidence for presence of M cells

Key Points

• To explore the electrophysiologic characteristics of cells throughout the left ventricular wall and identify the presence of M cells.
• Cells from the left ventricular wall of human hearts were electrophysiologically characterized.
• Action potentials and conducting properties of these cells were analyzed to determine the presence of M cells.
• Evidence supports the presence of M cells in the left ventricular wall, with distinct electrophysiologic properties.
• M cells exhibit unique action potential profiles compared to surrounding cardiac cells.