Electrocardiographic screening for emphysema

The frontal plane P axis

Raj Baljepally, David H. Spodick

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Background: Because the most characteristic and sensitive electrocardiographic (ECG) correlate of pulmonary emphysema in adults is verticalization of the frontal plane P-wave vector (P axis), we investigated its strength as a lone criterion to screen for obstructive pulmonary disease (OPD) in an adult hospital population. Methods: In all, 954 consecutive unselected ECGs were required to yield 100 with P axis ≥ +70°(unequivocally negative P in aVL during sinus rhythm) and pulmonary function tests, and 100 with P axis ≤ +50°(unequivocally positive P-aVL). Results: Obstructive pulmonary disease by both pulmonary function test and clinical criteria was present in 89 of 100 patients with vertical P axes and 4 of 100 patients without OPD. Conclusion: The high sensitivity (89% for this series) and high specificity (96%) makes vertical P axis a useful screening criterion. Its at-a-glance simplicity makes it 'user-friendly'.

Original languageEnglish (US)
Pages (from-to)226-228
Number of pages3
JournalClinical Cardiology
Volume22
Issue number3
StatePublished - Mar 16 1999
Externally publishedYes

Fingerprint

Obstructive Lung Diseases
Emphysema
Respiratory Function Tests
Pulmonary Emphysema
Electrocardiography
Population

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

Cite this

Electrocardiographic screening for emphysema : The frontal plane P axis. / Baljepally, Raj; Spodick, David H.

In: Clinical Cardiology, Vol. 22, No. 3, 16.03.1999, p. 226-228.

Research output: Contribution to journalArticle

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