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Hypertensive Crisis, Burden, Management, and Outcome at a Tertiary Care Center in Karachi
Aysha Almas1, Ayaz Ghouse2, Ahmed Raza Iftikhar2
1Department of Medicine, Stadium Road, Aga Khan University, P.O. Box 3500, Karachi 74800, Pakistan.
Insights
Hypertensive crisis is common in uncontrolled hypertension patients. Oral calcium channel blockers and IV nitrates were frequently used for management, with varying blood pressure reductions observed.
Area of Science:
- Cardiology
- Internal Medicine
- Public Health
Background:
- Uncontrolled hypertension poses a significant risk for developing hypertensive crisis.
- Hypertensive crisis requires prompt management to prevent severe complications.
Purpose of the Study:
- To determine the prevalence of hypertensive crisis in patients with uncontrolled hypertension.
- To analyze the management strategies and outcomes of hypertensive crisis.
- To identify common complications associated with hypertensive crisis.
Main Methods:
- Cross-sectional study conducted at a tertiary care center in Karachi, Pakistan.
- Inclusion criteria: Adult inpatients (>18 years) presenting to the ER with known and uncontrolled hypertension.
- Data collection on patient demographics, management, and complications.
Main Results:
- Prevalence of uncontrolled hypertension was 28.6%; hypertensive crisis was present in 56.3% of these patients.
- Most common medications: oral calcium channel blockers (35.4%) and intravenous nitrates (22.7%).
- Intravenous sodium nitroprusside showed the greatest mean systolic blood pressure drop (80 mm Hg); acute renal failure was the most frequent complication (11.5%).
Conclusions:
- Hypertensive crisis has a high prevalence among patients with uncontrolled hypertension.
- Oral calcium channel blockers and intravenous nitrates are the primary medications used in this setting.
- Effective management is crucial to mitigate complications like acute renal failure.
Abstract:
Objectives. Hypertension, if uncontrolled, can lead to hypertensive crisis. We aim to determine the prevalence of hypertensive crisis, its management, and outcome in patients presenting to a tertiary care center in Karachi. Methods. This was a cross-sectional study conducted at the Aga Khan University, Karachi, Pakistan. Adult inpatients (>18 yrs) presenting to the ER who were known hypertensive and had uncontrolled hypertension were included. Results. Out of 1336 patients, 28.6% (387) had uncontrolled hypertension. The prevalence of hypertensive crisis among uncontrolled hypertensive was 56.3% (218). Per oral calcium channel blocker; 35.4% (137) and intravenous nitrate; 22.7% (88) were the most commonly administered medication in the ER. The mean (SD) drop in SBP in patients with hypertensive crisis on intravenous treatment was 53.1 (29) mm Hg and on per oral treatment was 43 (27) mm Hg. The maximum mean (SD) drop in blood pressure was seen by intravenous sodium nitroprusside; 80 (51) mm Hg in SBP. Acute renal failure was the most common complication with a prevalence of 11.5% (24). Conclusion. The prevalence of hypertensive crisis is high. Per oral calcium channel blocker and intravenous nitrate are the most commonly administered medications in our setup.
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