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Published on: October 28, 2022
Clinical characteristics of hypertensive encephalopathy in pediatric patients
Chang Hoon Ahn1, Seung-A Han1, Young Hwa Kong1
1Department of Pediatrics, Chonbuk National University Medical School, Jeonju, Korea.
Insights
Children with hypertensive encephalopathy from kidney problems experienced more severe symptoms and a higher likelihood of posterior reversible encephalopathy syndrome (PRES) on MRI scans.
Area of Science:
- Pediatric Nephrology
- Neurology
- Hypertension Research
Background:
- Hypertensive encephalopathy (HE) is a critical condition in children.
- Understanding HE's clinical features based on its cause is vital for effective management.
Purpose of the Study:
- To investigate the clinical characteristics of pediatric hypertensive encephalopathy.
- To compare HE presentations based on underlying renal versus non-renal hypertension etiologies.
Main Methods:
- Retrospective analysis of 17 pediatric patients diagnosed with HE.
- Patients categorized into renal-origin and non-renal-origin hypertension groups.
- Comparison of clinical symptoms and brain MRI findings between groups.
Main Results:
- The renal group exhibited significantly higher systolic blood pressure and a higher incidence of seizures.
- Posterior reversible encephalopathy syndrome (PRES) was more prevalent in the renal-origin hypertension group (66.6%) compared to the non-renal group (12.5%).
- Specific causes included renal artery stenosis, glomerulonephritis, lupus nephritis, acute renal failure, essential hypertension, pheochromocytoma, thyrotoxicosis, and acute promyelocytic leukemia.
Conclusions:
- Renal-origin hypertension is associated with a more severe clinical course in pediatric HE.
- Renal-origin hypertension in children strongly correlates with the presence of PRES on brain MRI.
Purpose:
The aim of this study was to assess the clinical characteristics of hypertensive encephalopathy according to the underlying etiologies in children.
Methods:
We retrospectively evaluated 33 pediatric patients who were diagnosed as having hypertensive encephalopathy in Chonbuk National University Children's Hospital. Among the patients, 18 were excluded because of incomplete data or because brain magnetic resonance imaging (MRI) was not performed. Finally, 17 patients were enrolled and divided into a renal-origin hypertension group and a non-renal-origin hypertension group according to the underlying cause. We compared the clinical features and brain MRI findings between the 2 groups.
Results:
The renal group included renal artery stenosis (4), acute poststreptococcal glomerulonephritis (2), lupus nephritis (2), and acute renal failure (1); the nonrenal group included essential hypertension (4), pheochromocytoma (2), thyrotoxicosis (1), and acute promyelocytic leukemia (1). The mean systolic blood pressure of the renal group (172.5±36.9 mmHg) was higher than that of the nonrenal group (137.1±11.1 mmHg, P<0.05). Seizure was the most common neurologic symptom, especially in the renal group (P<0.05). Posterior reversible encephalopathy syndrome (PRES), which is the most typical finding of hypertensive encephalopathy, was found predominantly in the renal group as compared with the nonrenal group (66.6% vs. 12.5%, P<0.05).
Conclusion:
We conclude that the patients with renal-origin hypertension had a more severe clinical course than those with non-renal-origin hypertension. Furthermore, the renal-origin group was highly associated with PRES on brain MRI.
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