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Hypertension and convulsions complicating sickle cell anaemia: possible role of transfusion
Insights
Severe hypertension is a serious complication in children with sickle cell disease, potentially leading to seizures and brain bleeds. Early recognition is crucial for timely management and avoiding harmful diagnostic tests.
Area of Science:
- Pediatric Nephrology
- Neurology
- Hematology
Background:
- Sickle cell disease (SCD) is a genetic blood disorder.
- Hypertension is a known but often under-recognized complication in pediatric SCD.
Observation:
- Presents three pediatric cases of SCD with severe hypertension.
- Associated neurological complications included convulsions and cerebral hemorrhage.
- Biochemical findings revealed elevated plasma renin activity in one patient and elevated 24-h urinary catecholamines in another.
Findings:
- The etiology of hypertension in sickle cell disease appears multifactorial.
- Specific contributing factors may include renin-angiotensin system activation and sympathetic nervous system overactivity.
Implications:
- Highlights the critical need for vigilant blood pressure monitoring in children with SCD.
- Emphasizes prompt diagnosis and management of hypertension to prevent severe neurological sequelae.
- Warns against potentially hazardous diagnostic procedures when hypertension is present in SCD patients.
Abstract:
Three children with sickle cell disease who had various combinations of severe hypertension, convulsion, and cerebral haemorrhage are presented. One child had elevated plasma renin activity while another had elevated 24-h urinary catecholamines. The aetiology of hypertension in sickle cell disease seems to be multifactorial. Recognition of this serious complication of sickle cell disease is important not only to avoid its consequences but also to avoid potentially dangerous diagnostic procedures.