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KMID : 1100620170040010038
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Clinical and Experimental Emergency Medicine
2017 Volume.4 No. 1 p.38 ~ p.47
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Changes in electrocardiographic findings after closed thoracostomy in patients with spontaneous pneumothorax
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Lee Won-Jae
Lee Yoon-Je
Kim Chang-Sun
Choi Hyuk-Joong
Kang Bo-Ssng
Lim Tae-Ho
Oh Jae-Hoon
Kang Hyung-Goo
Shin Jung-Hun
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Abstract
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Objective: We aimed to describe electrocardiographic (ECG) findings in spontaneous pneumothorax patients before and after closed thoracostomy.
Methods: This is a retrospective study which included patients with spontaneous pneumothorax who presented to an emergency department of a tertiary urban hospital from February 2005 to March 2015. The primary outcome was a difference in ECG findings between before and after closed thoracostomy. We specifically investigated the following ECG elements: PR, QRS, QTc, axis, ST segments, and R waves in each lead. The secondary outcomes were change in ST segment in any lead and change in axis after closed thoracostomy.
Results: There were two ECG elements which showed statistically significant difference after thoracostomy. With right pneumothorax volume of greater than 80%, QTc and the R waves in aVF and V5 significantly changed after thoracostomy. With left pneumothorax volume between 31% and 80%, the ST segment in V2 and the R wave in V1 significantly changed after thoracostomy. However, majority of ECG elements did not show statistically significant alteration after thoracostomy.
Conclusion: We found only minor changes in ECG after closed thoracostomy in spontaneous pneumothorax patients.
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KEYWORD
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Electrocardiography, Pneumothorax, Tension pneumothorax
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