Clinical inertia in poorly controlled elderly hypertensive patients: a cross-sectional study in Spanish physicians to ascertain reasons for not intensifying treatment.

BACKGROUND: Clinical inertia, the failure of physicians to initiate or intensify therapy when indicated, is a major problem in the management of hypertension and may be more prevalent in elderly patients. Overcoming clinical inertia requires understanding its causes and evaluating certain factors, particularly those related to physicians. OBJECTIVE: The objective of our study was to determine the rate of clinical inertia and the physician-reported reasons for it. METHODS: An observational, cross-sectional, multi-center study was carried out in a primary care setting. We included 512 physicians, with a consecutive sampling of 1,499 hypertensive patients with clinical inertia. MAIN OUTCOME MEASURE: Clinical inertia was defined when physicians did not modify treatment despite knowing that the therapeutic target had not been reached. Clinical inertia was considered to be justified (JCI) when physicians provided an explanation for not intensifying treatment and as not justified (nJCI) when no reasons were given. RESULTS: JCI was observed in 30.1 % (95 % CI 27.8-32.4) of patients (n = 451) and nJCI in 69.9 % (95 % CI 67.6-72.2) (n = 1,058). JCI was associated with higher blood pressure (BP) values (both systolic and diastolic) and diabetes (p = 0.012) than nJCI. nJCI was associated with patients having an isolated increase of systolic or diastolic or high borderline BP values or cardiovascular disease. CONCLUSION: Physicians provided reasons for not intensifying treatment in poorly controlled patients in only 30 % of instances. Main reasons for not intensifying treatment were borderline BP values, co-morbidity, suspected white coat effect, or perceived difficulty achieving target. nJCI was associated with high borderline BP values and cardiovascular disease.

Is there a predictive profile for clinical inertia in hypertensive patients? An observational, cross-sectional, multicentre study.

BACKGROUND: Some studies have described a large number of hypertensive patients who are followed by a primary care physician without achieving adequate blood pressure (BP) control but whose treatment nevertheless is not intensified. It is not known whether physicians are aware of this clinical inertia and what factors are associated with this problem. OBJECTIVE: The aim of this study was to describe the factors associated with clinical inertia in hypertensive patients. METHODS: This was an observational, cross-sectional, multicentre study conducted in a network of primary care centres and hospital hypertension units in Spain. Using a consecutive sampling approach, 512 physicians selected 5077 hypertensive patients in whom they suspected poor BP control after chart review. The main variables documented were BP control and cardiovascular risk according to European Society of Hypertension guidelines, changes in treatment after visit, type of treatment, and healthcare setting. A binomial logistic regression multivariate analysis, adjusted for physician, was performed. RESULTS: Of the selected patients, 70.9% had poor BP control according to measurements taken in the physician's office, and in 1499 (42.1%) of those poorly controlled patients, treatment was not intensified (clinical inertia). Factors associated with clinical inertia were as follows: being seen at a primary care centre (p < 0.001), not having left ventricular hypertrophy (p < 0.001) or microalbuminuria (p < 0.001), taking fixed-dose (p = 0.049) or free-dose (p = 0.001) combination therapy, BP measured in other settings (nurse's office, patient's home) than the physician's office (p = 0.034) or the pharmacy (p = 0.019), older age (p = 0.032), and lower systolic (p < 0.001) and diastolic (p < 0.001) BP. Of the hypertensive patients with clinical inertia, 90.2% (95% CI 88.7, 91.7) had high cardiovascular risk. CONCLUSIONS: Clinical inertia was associated with a profile that included older age, lack of co-morbid conditions and being seen at a primary care centre.