PMID- 30594338 OWN - NLM STAT- MEDLINE DCOM- 20200508 LR - 20200508 IS - 1876-4738 (Electronic) IS - 0914-5087 (Linking) VI - 73 IP - 4 DP - 2019 Apr TI - Characteristics of synthesized right-sided chest electrocardiograms in patients with acute pulmonary embolism. PG - 313-317 LID - S0914-5087(18)30353-8 [pii] LID - 10.1016/j.jjcc.2018.12.010 [doi] AB - BACKGROUND: The significance of right-sided chest lead electrocardiogram (ECG) abnormalities in acute pulmonary embolism (APE) is unclear. This study evaluated the characteristics of such abnormalities in APE patients. METHODS: This retrospective study included consecutive patients who were diagnosed with APE by contrast-enhanced computed tomography or pulmonary artery angiography. A standard 12-lead ECG and a synthesized right-sided chest ECG were obtained from these patients. Waveform differences were noted between the acute and post-treatment phases. RESULTS: In total, 56 APE patients (18 men and 38 women, mean age 66.7+/-13.3 years) were included. Traditional ECG findings, such as right-axis deviation, the S(1)Q(3)T(3) pattern, and clockwise rotation, were found in relatively few patients (14.3%, 32.1%, and 21.4%, respectively). In some cases, a negative T wave in standard 12-lead ECGs was observed in leads III, V1, and V2 (46.4%, 60.7%, and 39.9%, respectively). Syn-V3R ECG showed a higher frequency of negative T waves (66.1%) at the onset and significantly (p<0.01) decreased at the follow-up. Multiple logistic regression analyses for differentiating APE revealed that the negative T waves only in lead syn-V3R were significantly related (odds ratio: 6.95, 95% confidence interval: 2.50-19.32, p<0.001). CONCLUSIONS: The presence of a negative T wave in a synthesized right-sided chest ECG, particularly in the V3R lead, is a new and distinctive finding denoting pulmonary embolism. To confirm the utility of this characteristic using synthesized right-sided chest ECGs for the diagnosis of APE, further studies with larger populations will be required. CI - Copyright (c) 2018. Published by Elsevier Ltd. FAU - Kusayama, Takashi AU - Kusayama T AD - Department of System Biology, Kanazawa University Graduate School of Advanced Preventive Medical Sciences, Ishikawa, Japan. FAU - Furusho, Hiroshi AU - Furusho H AD - Department of System Biology, Kanazawa University Graduate School of Advanced Preventive Medical Sciences, Ishikawa, Japan. Electronic address: hfurusho@m-kanazawa.jp. FAU - Kinoshita, Masaki AU - Kinoshita M AD - Division of Cardiology, Department of Internal Medicine, Toyama Prefectural Central Hospital, Toyama, Japan. FAU - Kaneko, Shuichi AU - Kaneko S AD - Department of System Biology, Kanazawa University Graduate School of Advanced Preventive Medical Sciences, Ishikawa, Japan. FAU - Usuda, Kazuo AU - Usuda K AD - Division of Cardiology, Department of Internal Medicine, Toyama Prefectural Central Hospital, Toyama, Japan. FAU - Takamura, Masayuki AU - Takamura M AD - Department of System Biology, Kanazawa University Graduate School of Advanced Preventive Medical Sciences, Ishikawa, Japan. LA - eng PT - Evaluation Study PT - Journal Article DEP - 20181226 PL - Netherlands TA - J Cardiol JT - Journal of cardiology JID - 8804703 SB - IM MH - Acute Disease MH - Aged MH - Arrhythmias, Cardiac/diagnostic imaging MH - Computed Tomography Angiography/methods MH - Electrocardiography/instrumentation/*methods MH - Female MH - Heart Conduction System/diagnostic imaging MH - Humans MH - Male MH - Middle Aged MH - Odds Ratio MH - Pulmonary Artery/diagnostic imaging MH - Pulmonary Embolism/*diagnostic imaging MH - Retrospective Studies MH - Thorax/diagnostic imaging MH - Tomography, X-Ray Computed/methods OTO - NOTNLM OT - Acute pulmonary embolism OT - Negative T wave OT - Right-sided chest lead OT - Synthesized electrocardiography EDAT- 2018/12/31 06:00 MHDA- 2020/05/10 06:00 CRDT- 2018/12/31 06:00 PHST- 2018/07/13 00:00 [received] PHST- 2018/10/08 00:00 [revised] PHST- 2018/10/22 00:00 [accepted] PHST- 2018/12/31 06:00 [pubmed] PHST- 2020/05/10 06:00 [medline] PHST- 2018/12/31 06:00 [entrez] AID - S0914-5087(18)30353-8 [pii] AID - 10.1016/j.jjcc.2018.12.010 [doi] PST - ppublish SO - J Cardiol. 2019 Apr;73(4):313-317. doi: 10.1016/j.jjcc.2018.12.010. Epub 2018 Dec 26.