RESUMO
DISCLAIMER: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE: Prospective medication order review by a clinical pharmacist is uncommon in many South and Central American countries. Voluntary error reporting and analysis are similarly uncommon. This paper describes the results of pharmacist prospective order review, medication error reporting, and quality improvement activities in a Latin American hospital. METHODS: On January 1, 2020, the hospital initiated prospective review of all medication orders in both the hospital and clinic setting by pharmacists. Health professionals were encouraged to report errors identified to the hospital's voluntary reporting program. Data collected included the medication name and dose, stage of the medication use process, error severity, and error cause. Error reports were periodically reviewed by pharmacy staff. RESULTS: In the 402,100 orders reviewed, errors were found in 605 inpatient orders and 405 clinic orders (0.25%). Most errors were identified before they reached the patient (69.9% of inpatient errors and 81.0% of clinic errors). The prescribing phase was associated with the highest proportion of errors (50.8% of inpatient errors and 41.7% of clinic errors). The most common reasons for prescribing errors were confusing orders and wrong doses. Analgesics (22.7%) and antibiotics (21.3%) were the medication classes most frequently identified. After aggregated review, pharmacists generated 19 clinical alerts leading to system changes and staff education. CONCLUSION: This study demonstrates the impact of prospective order review by pharmacists on patient safety. In addition to preventing errors from reaching the patient, voluntary error reporting and evaluation led to system changes intended to reduce the likelihood that similar errors would occur again.