PMID- 31571793 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220410 IS - 1011-6842 (Print) IS - 1011-6842 (Linking) VI - 35 IP - 5 DP - 2019 Sep TI - Terminal QRS Distortion in ST Elevation Myocardial Infarction as a Prediction of Mortality: Systematic Review and Meta-Analysis. PG - 445-458 LID - 10.6515/ACS.201909_35(5).20180909A [doi] AB - BACKGROUND: Terminal QRS distortion reflects advanced stage and large myocardial infarction predisposing the heart to adverse outcomes. Recent studies suggest that terminal QRS distortion is associated with morbidity and mortality in ST elevation myocardial infarction (STEMI). However, a systematic review and meta-analysis of the literature have not been done. OBJECTIVE: We assessed the association between terminal QRS distortion in patients with STEMI and mortality by a systematic review of the literature and a meta-analysis. METHODS: We comprehensively searched the databases of MEDLINE and EMBASE from inception to September 2017. Included studies were published prospective or retrospective cohort studies that compared all-cause mortality in subjects with STEMI with QRS distortion versus those without QRS distortion. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. RESULTS: Fifteen studies from January 1993 to May 2015 were included in this meta-analysis involving 7,479 subjects with STEMI (2,906 QRS distortion and 4,573 non-QRS distortion). QRS distortion was associated with increased mortality (pooled risk ratio = 1.81, 95% confidence interval: 1.37-2.40, p < 0.000, I(2) = 41.6%). Considering the introduction of clopidogrel in 2004, we performed subgroup analyses before and after 2004, and the associated with higher mortality was still present (before 2004, RR 1.75, 95% CI 1.08-2.82, p = 0.022, I(2) = 66.1%; after 2004, RR 1.96, 95% CI 1.44-2.65, p < 0.001, I(2) = 0%). CONCLUSIONS: Terminal QRS distortion increased all-cause mortality by 81%. Our study suggests that terminal QRS distortion is an important tool to assess the risk in patients with STEMI. FAU - Prasitlumkum, Narut AU - Prasitlumkum N AD - University of Hawaii Internal Medicine Residency Program, Honolulu, HI. FAU - Sirinvaravong, Natee AU - Sirinvaravong N AD - Department of Medicine, Einstein Medical Center, Philadelphia, PA, USA. FAU - Limpruttidham, Nath AU - Limpruttidham N AD - University of Hawaii Internal Medicine Residency Program, Honolulu, HI. FAU - Rattanawong, Pattara AU - Rattanawong P AD - University of Hawaii Internal Medicine Residency Program, Honolulu, HI. AD - Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. FAU - Tom, Elysse AU - Tom E AD - University of Hawaii Internal Medicine Residency Program, Honolulu, HI. FAU - Kanitsoraphan, Chanavuth AU - Kanitsoraphan C AD - Faculty of Medicine Siriraj Hospital. FAU - Chongsathidkiet, Pakawat AU - Chongsathidkiet P AD - Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. AD - Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA. FAU - Boondarikpornpant, Thosaporn AU - Boondarikpornpant T AD - Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand. LA - eng PT - Journal Article PL - China (Republic : 1949- ) TA - Acta Cardiol Sin JT - Acta Cardiologica Sinica JID - 101687085 PMC - PMC6760130 OTO - NOTNLM OT - Mortality OT - ST elevation OT - Terminal QRS distortion EDAT- 2019/10/02 06:00 MHDA- 2019/10/02 06:01 PMCR- 2019/09/01 CRDT- 2019/10/02 06:00 PHST- 2019/10/02 06:00 [entrez] PHST- 2019/10/02 06:00 [pubmed] PHST- 2019/10/02 06:01 [medline] PHST- 2019/09/01 00:00 [pmc-release] AID - 10.6515/ACS.201909_35(5).20180909A [doi] PST - ppublish SO - Acta Cardiol Sin. 2019 Sep;35(5):445-458. doi: 10.6515/ACS.201909_35(5).20180909A.