NSIVCD: Non-Specific Intraventricular Conduction Defect

What does NSIVCD mean? The above is one of NSIVCD meanings. It may have other definitions. Please refer to the end of this passage.

NSIVCD: Non-Specific Intraventricular Conduction Defect

Definition in English: Non-Specific Intraventricular Conduction Defect