Key result
An initial abnormal PTFV1 combined with P-wave prolongation identified underlying cardiovascular disease with 82% sensitivity, 40% specificity, and 70% positive predictive value.
Why the study?
Does an isolated abnormal terminal negative deflection in lead V1 (PTFV1) predict underlying cardiovascular disease?
Population
41 patients with an isolated abnormal terminal negative deflection in precordial lead V1 (PTFV1) ≥ 0.04 mms
Design
Cross-sectional
Authors
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May support ECG-based detection of cardiovascular disease when PTFV1 and P-wave prolongation coexist; leaves open isolated PTFV1 utility in prospective cohorts.
Observational (n=41)
Does an isolated abnormal terminal negative deflection in lead V1 (PTFV1) predict underlying cardiovascular disease?
An isolated abnormal terminal P-wave force in lead V1, especially when combined with P-wave prolongation, suggests underlying cardiovascular disease and warrants further evaluation.
Liren Jin (1988) conducted an observational in Isolated abnormal terminal P-wave force (Left Atrial Abnormality) (n=41). Abnormal terminal P-wave force (PTFV1) and P-wave prolongation was evaluated on Presence of cardiovascular disease. An initial abnormal PTFV1 combined with P-wave prolongation identified underlying cardiovascular disease with 82% sensitivity, 40% specificity, and 70% positive predictive value.
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