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Electrocardiographic P-wave axis in discriminating restrictive from obstructive pulmonary disorders
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| Author:
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, DR.BASIM SAFI NAJI ALMGOTER, HAYDER M. AL-KURAISHY
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| Abstract:
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Objectives: To describe the usefulness of the Electrocardiogram (ECG) changes in determination of the
chronic lung diseases pattern (obstructive or restrictive) depending on the changes in the frontal P-wave axis.
Methods: This study was carried out at the department of medicine- AL-Yermouk teaching hospital, Baghdad,
Iraq during the period from the April 2013 to January 2014. ECGs were analyzed in eighty patients had
pulmonary function test; forty consecutive patients with obstructive lung diseases and forty consecutive
patients with restrictive lung diseases. P-wave axes were calculated to the nearest (5º) and grouped as vertical
(=+60º), intermediate (>+40º to <+60º), and horizontal (=+40º). SPSS version 20.00 was used for data analysis.
Results: P-wave axes for obstructive versus restrictive lung diseases were different (P < 0.001). Thirty-eight of
forty ECGs in patients with obstructive lung diseases had vertical P-wave axes between = +60º to +90º, in
twenty-four of forty patients with restrictive lung diseases, P-wave axes were less than +40º (horizontal);
twelve were between +40º to +60º (intermediate); and only four were vertical. Conclusion: The vertical Pwave axis (=+60°) on an electrocardiogram is a helpful characteristic of obstructive lung disease in adults and
can be used as a discriminating tool for obstructive and restrictive lung diseases.
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| Keyword:
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Obstructive lung disease, restrictive lung disease, frontal P-wave axis, pulmonary function test
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2021.13.02.293
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| Download:
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