ICU Telemedicine Implementation and Risk-Adjusted Mortality Differences Between Daytime and Nighttime Coverage

Area of Science:

• Critical Care Medicine
• Health Services Research
• Telemedicine

Background:

• ICU telemedicine has shown mixed results regarding clinical and financial outcomes.
• Understanding discrepancies in ICU telemedicine effectiveness is crucial due to its impact and cost.
• Prior meta-analysis indicated reduced mortality with ICU telemedicine when pre-implementation standardized mortality ratio (SMR) exceeded 1.

Purpose of the Study:

• To investigate the effect of ICU telemedicine implementation on adjusted mortality outcomes.
• To determine the specific contexts in which ICU telemedicine influences mortality.

Main Methods:

• A retrospective pre-post analysis compared ICU mortality before and after telemedicine implementation.
• Risk-adjusted ICU mortality was analyzed for both am and pm admissions.
• Objective measures of ICU telemedicine involvement were assessed.

Main Results:

• Overall risk-adjusted ICU mortality decreased from 8.7% before to 6.5% after telemedicine implementation (P < .01).
• The reduction in mortality was significant in the pm admission group (10.8% to 7.0%, P < .01), but not in the am group.
• Pre-implementation SMR was 0.95 for am admissions and 1.30 for pm admissions.

Conclusions:

• ICU telemedicine implementation led to reduced risk-adjusted mortality, predominantly in the pm admission group.
• The findings support an association between higher pre-implementation SMR (>1) in pm admissions and mortality reduction post-telemedicine.
• Further research is needed to confirm these findings and explore other ICU telemedicine outcomes using observed-to-expected ratios.