• M A Sevick, S Zucconi, S Sereika, S Puczynski, R Drury, R Marra, P Mattes, and J Taylor.
• Department of Social and Decision Sciences, Carnegie Mellon University, Pittsburgh, PA 15213.
• Am. J. Crit. Care. 1992 Nov 1; 1 (3): 45-51.

ObjectiveTo describe the characteristics and service utilization patterns of long-term ventilator-dependent patients.DesignUsing medical records, a cohort of ventilator-dependent patients was identified and followed.SettingA vertically integrated healthcare system in southwestern Pennsylvania.PatientsForty-nine adults requiring prolonged ventilatory assistance.MeasuresDemographics, admission date, admission diagnosis, discharge diagnosis, reason for ventilator dependency, level of care to which the patient was admitted, dates of all transfer orders, dates of all transfers between levels of care, discharge destination and subsequent readmissions.ResultsThe major reason for long-term ventilator dependency was progressive debilitating disease of either a pulmonary or nonpulmonary nature. The mean length of stay within the system was 72.6 days +/- 42.55 (median = 59 days, range = 24 to 267 days). Patients had an average of 3.3 transfers +/- 2.53 within the system (median = 3, range = 0 to 10). No delays in transfer to lower levels of care were found. Health utilization variables were largely unrelated to reason for ventilator dependency. Almost half of the patients (n = 24 or 49.0%) died in the system. Patients who died in the system were significantly older than patients for whom discharge home was possible.ConclusionsAdditional studies are necessary to describe the prevalence, etiology, health status and functional status of ventilator patients at all levels of care; the impact of different system approaches on patient well-being and cost of care; and the process of medical decision making. Economic analyses of costs and outcomes for ventilator-dependent patients using a cost-utility approach are also needed.

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