Liu Pang-Yen, Lin Yen-Po, Li Yi-Hwei, Su Zhi-Wei, Han Chih-Lu, Huang Shih-Chung, Lin Chin-Sheng, Meng Fan-Chun, Wu Hsien-Tsai, Lin Gen-Min
Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
Department of Emergency Medicine, Buddhist Tzu-Chi General Hospital-Taipei Branch, New Taipei, Taiwan.
Indian Heart J. 2017 Nov-Dec;69(6):720-724. doi: 10.1016/j.ihj.2017.05.005. Epub 2017 May 11.
To investigate the 12-lead surface electrocardiographic (ECG) findings in young male patients with left primary spontaneous pneumothorax (PSP) estimated by the Collins equation.
From 2003 through 2008, 60 young male patients who had left PSP and 61 age-matched unaffected males were included for 12-lead ECG analyses. The PSP size was estimated by the Collins equation. Those with left PSP were divided into two groups: 1) large PSP ≥30% (n=37), and 2) small PSP <30% (n=23). The ECG in the unaffected was used as the normal control. Baseline demographic, anthropometric, and electrocardiographic findings including heart rate, P-QRS-T axes, wave intervals, and RS voltages were compared among three groups.
As compared to the unaffected, patients with left PSP had faster heart rate, longer QTc interval, greater QRS and T axes. With regard to RS amplitudes, greater R in lead aVR and V1, and deeper S in lead II indicating predominant rightward forces, and smaller R in lead I and V3-V6 indicating inferior leftward forces were present in patients with left PSP. Of these ECG findings, heart rate, S voltage in lead II and R voltage in V1 in the large PSP but not in the small PSP had greater values than that in the unaffected group.
Among young male patients with left PSP estimated by the Collins method, the ECG showed faster heart beat and predominant rightward forces especially for those with large PSP.
通过柯林斯方程评估年轻男性左原发性自发性气胸（PSP）患者的12导联体表心电图（ECG）表现。
2003年至2008年，纳入60例患有左PSP的年轻男性患者和61例年龄匹配的未受影响男性进行12导联心电图分析。PSP大小通过柯林斯方程估算。患有左PSP的患者分为两组：1）大PSP≥30%（n = 37），2）小PSP<30%（n = 23）。将未受影响者的心电图作为正常对照。比较三组的基线人口统计学、人体测量学和心电图表现，包括心率、P-QRS-T轴、波间期和RS电压。
与未受影响者相比，左PSP患者心率更快，QTc间期更长，QRS和T轴更大。关于RS振幅，左PSP患者在aVR和V1导联R波更大，在II导联S波更深，提示主要为向右的力量，在I导联和V3-V6导联R波更小，提示向左下的力量较弱。在这些心电图表现中，大PSP组患者的心率、II导联S电压和V1导联R电压高于未受影响组，而小PSP组则无此差异。
在通过柯林斯方法评估的年轻男性左PSP患者中，心电图显示心跳更快且主要为向右的力量，尤其是大PSP患者。
