Beers AGS 2019 criteria in very old hospitalized patients

OBJECTIVE To define the rates and types of potentially inappropriate medications (PIMs) for older adults according to the Beers AGS 2019 criteria in oldest-old patients (aged ≥80 years) hospitalized in an Internal Medicine ward. METHODS A retrospective analysis of prescriptions from medical records of oldest-old patients hospitalized in an Internal Medicine Teaching-Hospital ward using the Beers AGS 2019 criteria was performed. Data was also collected for gender, mean age, days of hospitalization, presence of feeding tube, delirium, and polypharmacy (≥5 drugs/day). The drugs listed in Table 2 of the Beers criteria were considered PIMs. RESULTS The series comprised 39 very old patients (22 men, 17 women), with a mean age of 86.3±4.7 years and hospitalization of 22.8±21.3 days. All patients were admitted via the Emergency Room. Feeding tube placement and polypharmacy occurred in 84.6% of cases and delirium in 71.8%. The prescription of a total of 16 drugs considered PIM was detected by the Beers AGS 2019 criteria (mean 1.8 ± 1.0 PIM per patient). Main prescribed PIMs were Metoclopramide "if necessary" [IN] (41.0% of cases), Omeprazole (38.5%), Regular Insulin [IN] (23.1%), Haloperidol [IN] (18.0%), Quetiapine and Amiodarone (10% each). CONCLUSION In the present series of oldest-old hospitalized patients, significant rates of PIM were found, especially for drugs prescribed as "If Necessary", thereby increasing the risk of side-effects to that of the common polypharmacy in this age group.