Miss and Missed Diagnosed Cases at the

Background: Medical errors in the emergency department (ED) are common, and proportion of preventable adverse events is among the highest for all areas of medical care. Some of the most common types of medical mistakes in ED include misdiagnosis, medication errors, surgery errors, nosocomial infections, laboratory test errors, and administrative errors. The present work aims to assess rate and identify contributing factors to miss and missed diagnoses at the ED of King Fahd Hospital of the University (KFHU) in Khobar, KSA. Methods: It is a retrospective cohort study. Target population was medical records and database of inpatients admitted from the ED to the study hospital during the year 2007 and the study sample amounted to 441 cases. Accuracy of the diagnosis in the present study was assessed by comparing the degree of matching between ED diagnosis and the final discharge diagnosis using (ICD-9-CM) diagnostic codes. Accuracy of diagnosis was divided into four main categories: fully matched, partially matched, unmatched and symptoms & unspecific. However, missed diagnosis was defined as cases where the ED diagnosis was not documented in the ED sheet. Results: Missed diagnosis represented (8.4%), fully/partially matched diagnosis was 62.3%, unmatched diagnosis was 10.7 % and symptoms & unspecific diagnosis was (18.6%). Consultants experienced high percentage of fully/partially matche