¹ Patient Safety Program, Department of Critical Care Medicine, University of Pittsburgh Medical Center Presbyterian Hospital, Pittsburgh, PA, USA
² Patient Safety Program, Department of Surgery, University of Pittsburgh Medical Center Presbyterian Hospital, Pittsburgh, PA, USA
³ Patient Safety Program, Department of Internal Medicine, University of Pittsburgh Medical Center Presbyterian Hospital, Pittsburgh, PA, USA
⁴ University of Pittsburgh Medical Center Presbyterian Hospital, Pittsburgh, PA, USA

Correspondence to:
Dr M A DeVita
University of Pittsburgh Medical Centre Presbyterian Hospital, 200 Lothrop Street, Pittsburgh, PA 15213, USA; devitam{at}msx.upmc.edu Background: No previous studies have investigated whether medical emergency team (MET) responses can be used to detect medical errors.

Objectives: To determine whether review of MET responses can be used as a surveillance method for detecting medical errors.

Methods: : Charts of all patients receiving MET responses during an 8 month period were reviewed by a hospital based Quality Improvement Committee to establish if the clinical deterioration that prompted the MET response was associated with a medical error (defined as an adverse event that was preventable with the current state of medical knowledge). Medical errors were categorized as diagnostic, treatment, or preventive errors using a descriptive typology based on previous published reports.

Results: Three hundred and sixty four consecutive MET responses underwent chart review and 114 (31.3%) were associated with medical errors: 77 (67.5%) were categorized as diagnostic errors, 68 (59.6%) as treatment errors, and 30 (26.3%) as prevention errors. Eighteen separate hospital care processes were identified and modified as a result of this review, 10 of which involved standardization.

Conclusions: MET review may be used for surveillance to detect medical errors and to identify and modify processes of care that underlie those errors.

Keywords: error detection; error prevention; medical emergency team; medical error

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