Saraschandra Vallabhajosyula1, Aditi Shankar2, Rahul Vojjini3, Wisit Cheungpasitporn4, Pranathi R Sundaragiri5, Hilary M DuBrock6, Hiroshi Sekiguchi7, Robert P Frantz3, Hector R Cajigas7, Garvan C Kane3, Jae K Oh3. 1. Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota; Center for Clinical and Translational Science, Mayo Clinic Graduate School of Biomedical Sciences, Rochester, Minnesota; Section of Interventional Cardiology, Division of Cardiovascular Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA. Electronic address: svalla4@emory.edu. 2. Department of Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX. 3. Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota. 4. Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN. 5. Division of Hospital Internal Medicine, Department of Medicine, Mayo Clinic, Rochester, MN. 6. Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota. 7. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
Abstract
BACKGROUND: Right ventricular (RV) dysfunction in sepsis and septic shock has been infrequently studied and has uncertain prognostic significance. RESEARCH QUESTION: Does RV function impact mortality in sepsis and septic shock? STUDY DESIGN AND METHODS: We reviewed the published literature from January 1999 to April 2020 for studies evaluating adult patients with sepsis and septic shock. Study definition of RV dysfunction was used to classify patients. The primary outcome was all-cause mortality divided into short-term mortality (ICU stay, hospital stay, or mortality ≤30 days) and long-term mortality (>30 days). Effect estimates from the individual studies were extracted and combined, using the random-effects, generic inverse variance method of DerSimonian and Laird. RESULTS: Ten studies, 1,373 patients, were included; RV dysfunction was noted in 477 (34.7%). RV dysfunction was variably classified as decreased RV systolic motion, high RV/left ventricular ratio and decreased RV ejection fraction. Septic shock, ARDS, and mechanical ventilation were noted in 82.0%, 27.5%, and 78.4% of the population, respectively. Patients with RV dysfunction had lower rates of mechanical ventilation (71.9% vs 81.9%; P < .001), higher rates of acute hemodialysis (38.1% vs 22.4%; P = .04), but comparable rates of septic shock and ARDS. Studies showed moderate (I2 = 58%) and low (I2 = 49%) heterogeneity for short-term and long-term mortality, respectively. RV dysfunction was associated with higher short-term (pooled OR, 2.42; 95%CI, 1.52-3.85; P = .0002) (10 studies) and long-term (pooled OR, 2.26; 95%CI, 1.29-3.95; P = .004) (4 studies) mortality. INTERPRETATION: In this meta-analysis of observational studies, RV dysfunction was associated with higher short-term and long-term mortality in sepsis and septic shock.
BACKGROUND: Right ventricular (RV) dysfunction in sepsis and septic shock has been infrequently studied and has uncertain prognostic significance. RESEARCH QUESTION: Does RV function impact mortality in sepsis and septic shock? STUDY DESIGN AND METHODS: We reviewed the published literature from January 1999 to April 2020 for studies evaluating adult patients with sepsis and septic shock. Study definition of RV dysfunction was used to classify patients. The primary outcome was all-cause mortality divided into short-term mortality (ICU stay, hospital stay, or mortality ≤30 days) and long-term mortality (>30 days). Effect estimates from the individual studies were extracted and combined, using the random-effects, generic inverse variance method of DerSimonian and Laird. RESULTS: Ten studies, 1,373 patients, were included; RV dysfunction was noted in 477 (34.7%). RV dysfunction was variably classified as decreased RV systolic motion, high RV/left ventricular ratio and decreased RV ejection fraction. Septic shock, ARDS, and mechanical ventilation were noted in 82.0%, 27.5%, and 78.4% of the population, respectively. Patients with RV dysfunction had lower rates of mechanical ventilation (71.9% vs 81.9%; P < .001), higher rates of acute hemodialysis (38.1% vs 22.4%; P = .04), but comparable rates of septic shock and ARDS. Studies showed moderate (I2 = 58%) and low (I2 = 49%) heterogeneity for short-term and long-term mortality, respectively. RV dysfunction was associated with higher short-term (pooled OR, 2.42; 95%CI, 1.52-3.85; P = .0002) (10 studies) and long-term (pooled OR, 2.26; 95%CI, 1.29-3.95; P = .004) (4 studies) mortality. INTERPRETATION: In this meta-analysis of observational studies, RV dysfunction was associated with higher short-term and long-term mortality in sepsis and septic shock.
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