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Koerber DM, Katz JN, Bohula E, Park JG, Dodson MW, Gerber DA, Hillerson D, Liu S, Pierce MJ, Prasad R, Rose SW, Sanchez PA, Shaw J, Wang J, Jentzer JC, Kristin Newby L, Daniels LB, Morrow DA, van Diepen S. Variation in risk-adjusted cardiac intensive care unit (CICU) length of stay and the association with in-hospital mortality: An analysis from the Critical Care Cardiology Trials Network (CCCTN) registry. Am Heart J 2024; 271:28-37. [PMID: 38369218 DOI: 10.1016/j.ahj.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 02/13/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Previous studies have suggested that there is wide variability in cardiac intensive care unit (CICU) length of stay (LOS); however, these studies are limited by the absence of detailed risk assessment at the time of admission. Thus, we evaluated inter-hospital differences in CICU LOS, and the association between LOS and in-hospital mortality. METHODS Using data from the Critical Care Cardiology Trials Network (CCCTN) registry, we included 22,862 admissions between 2017 and 2022 from 35 primarily tertiary and quaternary CICUs that captured consecutive admissions in annual 2-month snapshots. The primary analysis compared inter-hospital differences in CICU LOS, as well as the association between CICU LOS and all-cause in-hospital mortality using a Fine and Gray competing risk model. RESULTS The overall median CICU LOS was 2.2 (1.1-4.8) days, and the median hospital LOS was 5.9 (2.8-12.3) days. Admissions in the longest tertile of LOS tended to be younger with higher rates of pre-existing comorbidities, and had higher Sequential Organ Failure Assessment (SOFA) scores, as well as higher rates of mechanical ventilation, intravenous vasopressor use, mechanical circulatory support, and renal replacement therapy. Unadjusted all-cause in-hospital mortality was 9.3%, 6.7%, and 13.4% in the lowest, intermediate, and highest CICU LOS tertiles. In a competing risk analysis, individual patient CICU LOS was correlated (r2 = 0.31) with a higher risk of 30-day in-hospital mortality. The relationship remained significant in admissions with heart failure, ST-elevation myocardial infarction and non-ST segment elevation myocardial infarction. CONCLUSIONS In a large registry of academic CICUs, we observed significant variation in CICU LOS and report that LOS is independently associated with all-cause in-hospital mortality. These findings could potentially be used to improve CICU resource utilization planning and refine risk prognostication in critically ill cardiovascular patients.
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Affiliation(s)
- Daniel M Koerber
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | | | - Erin Bohula
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Jeong-Gun Park
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Mark W Dodson
- Department of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Murray, UT
| | - Daniel A Gerber
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA
| | - Dustin Hillerson
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Shuangbo Liu
- Max Rady College of Medicine, St. Boniface Hospital, Winnipeg, Manitoba, Canada
| | - Matthew J Pierce
- North Shore University Hospital, Northwell Health, Manhasset, NY, USA
| | | | - Scott W Rose
- Atrium Health Wake Forest Baptist, Winston-Salem, NC
| | - Pablo A Sanchez
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA
| | - Jeffrey Shaw
- Division of Cardiology, Department of Cardiac Sciences, University of Calgary, Calgary, Alberta, Canada
| | | | - Jacob C Jentzer
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - L Kristin Newby
- Division of Cardiology, Department of Medicine, Duke Clinical Research Institute, Durham, NC
| | - Lori B Daniels
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA
| | - David A Morrow
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Sean van Diepen
- Department of Critical Care Medicine and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
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van Diepen S, Tran DT, Ezekowitz JA, Schnell G, Wiley BM, Morrow DA, McAlister FA, Kaul P. Incremental costs of high intensive care utilisation in patients hospitalised with heart failure. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2019; 8:660-666. [PMID: 30977391 DOI: 10.1177/2048872619845282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AIMS Registries have reported large inter-hospital differences in intensive care unit admission rates for patients with acute heart failure, but little is known about the potential economic impact of over-admission of low-risk patients with heart failure to higher cost intensive care units. We described the variability in intensive care unit admission practices, the provision of critical care therapies, and estimated the potential national cost savings if all hospitals adopted low intensive care unit admission practices for patients admitted with heart failure. METHODS Using a national population health dataset, we identified 349,693 heart failure admission hospitalisations with a primary diagnosis of heart failure between 2007 and 2016. Hospitals were categorised as low (first quartile), medium (second and third quartile) and high (fourth quartiles) intensive care unit utilisation. RESULTS The mean intensive care unit admission rate was 16.4% (inter-hospital range 0.3-51%) including 5.4% in low, 14.5% in medium and 30% in high utilisation hospitals. Intensive care unit therapies in low, medium and high intensive care unit utilisation hospitals were 54.5%, 45.1% and 24.1% (P<0.001), respectively and the inhospital mortality rate was not significantly different. The proportion of hospital costs incurred by intensive care unit care was 7.8% in low, 19.8% in medium and 28.2% in high (P<0.001) admission hospitals. The potential cost savings of altering intensive care unit utilisation practices for patients with heart failure was CAN$234.8m over the study period. CONCLUSIONS In a national cohort of patients hospitalised with heart failure, we observed that low intensive care unit utilisation centres had lower hospital costs with no differences in mortality rates. The development of standardised admission criteria for high-cost and high acuity intensive care unit beds could reduce costs to the healthcare system.
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Affiliation(s)
- Sean van Diepen
- Department of Critical Care, University of Alberta, Canada.,Division of Cardiology, University of Alberta, Canada.,Canadian VIGOUR Center, University of Alberta, Canada
| | - Dat T Tran
- Canadian VIGOUR Center, University of Alberta, Canada
| | - Justin A Ezekowitz
- Division of Cardiology, University of Alberta, Canada.,Canadian VIGOUR Center, University of Alberta, Canada
| | - Gregory Schnell
- Libin Cardiovascular Institute of Alberta, University of Calgary, Canada
| | - Brandon M Wiley
- Department of Cardiovascular Medicine and Critical Care Independent Multidisciplinary Program, Mayo Clinic, USA
| | - David A Morrow
- Brigham and Women's Hospital and Harvard Medical School, USA
| | - Finlay A McAlister
- Canadian VIGOUR Center, University of Alberta, Canada.,Division of General Internal Medicine, University of Alberta, Canada
| | - Padma Kaul
- Division of Cardiology, University of Alberta, Canada.,Canadian VIGOUR Center, University of Alberta, Canada
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