Potentially inappropriate prescribing in older patients admitted to psychiatric hospital.

OBJECTIVES: The objectives of this study are to determine the prevalence of potentially inappropriate prescribing including potentially inappropriate medications (PIMs) and potential prescription omissions (PPOs) and to assess related risk factors in older people with major psychiatric illness. METHODS: This was a cross-sectional study of older patients hospitalized in a psychiatric hospital (n = 164; mean age 74.9 ± 7.3 years; 62% female). The primary endpoint was the prevalence of participants receiving PIMs and PPOs, which was assessed by using the Beers criteria 2012 and the screening tool of older person's potentially inappropriate prescriptions (STOPP) and screening tool of alert doctors to the right treatment (START) criteria. Univariate and multivariate logistic regression was used to assess significant risk factors for PIMs in this population. RESULTS: A total of 1269 drugs were prescribed to included patients (range: 0-19 drugs/day). PIMs were identified in 47% and 79% of participants, based on the Beers 2012 and STOPP criteria, respectively. Most PIMs (70%) concerned psychotropic drugs. The STOPP criteria identified more PIMs (331) than the Beers criteria 2012 (199). According to the START criteria, 59% of participants had PPOs. The number of prescribed medications was significantly associated with the occurrence of PIMs according to the Beers 2012 [OR 1.2 (95% CI 1.1-1.3)] and STOPP [OR 1.5 (95% CI 1.3-1.8)] criteria. CONCLUSION: Potentially inappropriate prescribing, as identified by the Beers and STOPP/START criteria, is highly prevalent among older patients hospitalized with major psychiatric illness. However, the focus on psychotropic drugs prescription without taking into account the benefit of these drugs to individual patients may limit the application of the Beers and STOPP criteria in psychiatric hospitals.

Head turning-induced hypotension in elderly people.

Carotid sinus hypersensitivity has a high prevalence in the elderly and is a possible cause of falls. In carotid sinus hypersensitivity, external triggers cause sudden reductions in blood pressure, leading to dizziness or syncope, resulting in falls. Turning of the head is considered an important example of such an external trigger in everyday life, wherein rotation of the neck is thought to manipulate the hypersensitive carotid sinus. However, direct evidence for this is lacking. The aim of this study was to investigate the effects of head turning in elderly with carotid sinus hypersensitivity. We performed a prospective, observational study in 105 elderly patients who visited a geriatric falls clinic in a university teaching hospital and in 25 community dwelling healthy elderly subjects. Continuous measurements of blood pressure and heart rate (Finapres) were performed before, during, and after head turning. Head turning-induced hypotension was defined as a drop in systolic blood pressure of at least 20 mmHg during head turning. Carotid sinus hypersensitivity was examined with carotid sinus massage. We also tested for two other common geriatric hypotensive syndromes, orthostatic hypotension and post prandial hypotension, using active standing and a meal test. All three hypotensive syndromes were defined using consensus definitions. Head turning resulted in hypotension in 39% of patients (mean systolic blood pressure drop 36 mm Hg) and in 44% of the healthy elderly, irrespective of the direction of the head movement. Carotid sinus hypersensitivity was associated with head-turning induced hypotension (OR= 3.5, 95% CI= 1.48 to 8.35). We conclude that head turning is indeed an important cause of sudden drops in blood pressure in elderly with carotid sinus hypersensitivity.