PMID- 31581196 OWN - NLM STAT- MEDLINE DCOM- 20200311 LR - 20200311 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 14 IP - 10 DP - 2019 TI - Cardiac output measurements via echocardiography versus thermodilution: A systematic review and meta-analysis. PG - e0222105 LID - 10.1371/journal.pone.0222105 [doi] LID - e0222105 AB - Echocardiography, as a noninvasive hemodynamic evaluation technique, is frequently used in critically ill patients. Different opinions exist regarding whether it can be interchanged with traditional invasive means, such as the pulmonary artery catheter thermodilution (TD) technique. This systematic review aimed to analyze the consistency and interchangeability of cardiac output measurements by ultrasound (US) and TD. Five electronic databases were searched for studies including clinical trials conducted up to June 2019 in which patients' cardiac output was measured by ultrasound techniques (echocardiography) and TD. The methodological quality of the included studies was evaluated by two independent reviewers who used the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2), which was tailored according to our systematic review in Review Manager 5.3. A total of 68 studies with 1996 patients were identified as eligible. Meta-analysis and subgroup analysis were used to compare the cardiac output (CO) measured using the different types of echocardiography and different sites of Doppler use with TD. No significant differences were found between US and TD (random effects model: mean difference [MD], -0.14; 95% confidence interval, -0.30 to 0.02; P = 0.08). No significant differences were observed in the subgroup analyses using different types of echocardiography and different sites except for ascending aorta (AA) (random effects model: mean difference [MD], -0.37; 95% confidence interval, -0.74 to -0.01; P = 0.05) of Doppler use. The median of bias and limits of agreement were -0.12 and +/-0.94 L/min, respectively; the median of correlation coefficient was 0.827 (range, 0.140-0.998). Although the difference in CO between echocardiography by different types or sites and TD was not entirely consistent, the overall effect of meta-analysis showed that no significant differences were observed between US and TD. The techniques may be interchangeable under certain conditions. FAU - Zhang, Yun AU - Zhang Y AD - Department of Emergency Medicine, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China. FAU - Wang, Yan AU - Wang Y AD - Education Department, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China. FAU - Shi, Jing AU - Shi J AD - Department of Emergency Medicine, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China. FAU - Hua, Zhiqiang AU - Hua Z AD - Department of Emergency Medicine, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China. FAU - Xu, Jinyu AU - Xu J AUID- ORCID: 0000-0001-7313-5502 AD - Department of Emergency Medicine, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China. LA - eng SI - Dryad/10.5061/dryad.6tr059p PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PT - Systematic Review DEP - 20191003 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Cardiac Output/*physiology MH - *Echocardiography MH - Echocardiography, Doppler MH - Humans MH - Publication Bias MH - Regression Analysis MH - Risk MH - *Thermodilution PMC - PMC6776392 COIS- The authors have declared that no competing interests exist. EDAT- 2019/10/04 06:00 MHDA- 2020/03/12 06:00 PMCR- 2019/10/03 CRDT- 2019/10/04 06:00 PHST- 2019/03/07 00:00 [received] PHST- 2019/08/21 00:00 [accepted] PHST- 2019/10/04 06:00 [entrez] PHST- 2019/10/04 06:00 [pubmed] PHST- 2020/03/12 06:00 [medline] PHST- 2019/10/03 00:00 [pmc-release] AID - PONE-D-19-06733 [pii] AID - 10.1371/journal.pone.0222105 [doi] PST - epublish SO - PLoS One. 2019 Oct 3;14(10):e0222105. doi: 10.1371/journal.pone.0222105. eCollection 2019.