Key result
Hypertensive patients with historically well-controlled blood pressure experienced a significantly higher incidence of preoperative blood pressure spikes compared to normotensive patients (10.9% vs 3.7%) before cataract surgery.
Why the study?
Does a history of well-controlled hypertension increase the incidence of preoperative rise in blood pressure in patients undergoing cataract surgery compared to normotensive individuals?
Observational (n=822)
No
Does a history of well-controlled hypertension increase the incidence of preoperative rise in blood pressure in patients undergoing cataract surgery compared to normotensive individuals?
Patients with well-controlled hypertension are at a significantly higher risk of experiencing a preoperative rise in blood pressure before cataract surgery compared to normotensive patients.
Answers are grounded in this paper and cite their sources.
Well-controlled hypertension was associated with more preoperative BP spikes before cataract surgery; leaves open whether targeted monitoring improves safety.
UNLABELLED: Incidence of preoperative rise in blood pressure (BP) in cataract surgery among hypertensive and normotensive patients. OBJECTIVE: To study the incidence of preoperative rise in BP in cataract surgery among normotensive individuals and hypertensive patients with historic good BP control in a population without other major chronic diseases. SETTINGS: Ophthalmology Service of a University Hospital. MATERIALS AND METHODS: A prospective study with 822 patients older than 40 years of age, with cataract surgery indication, and without major chronic diseases other than hypertension. The patients were divided in two groups: hypertensive and normotensive. Preoperative data, physical exams and medical adverse events were recorded in an evaluation questionnaire. RESULTS: The sample included 427 normotensive (52%) and 395 hypertensive patients (48%). The two groups had similar proportions of operations that were cancelled and not subsequently rescheduled, 2% (eight patients) in each group. The incidence of preoperative rise in BP was 3.7% in the normotensive group and 10.9% in the hypertensive group (P < 0.001). CONCLUSION: Hypertensive patients with historic good BP control and without other major co-morbidities present a larger incidence of preoperative rise in BP than normotensive individuals in cataract surgery.
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Lira et al. (2010) conducted an observational in Cataract surgery indication (n=822). History of hypertension vs. Normotensive individuals was evaluated on Incidence of preoperative rise in blood pressure (systolic > 180 mm Hg or diastolic > 110 mm Hg requiring treatment) (p=<0.001). Hypertensive patients with historically well-controlled blood pressure experienced a significantly higher incidence of preoperative blood pressure spikes compared to normotensive patients (10.9% vs 3.7%) before cataract surgery.
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