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Status Epilepticus in Post-Transplantation Hyperammonemia Involves Careful Metabolic Management
Vikram Venkata Puram1,2, Brent Berry2, Malik Ghannam2,3
1Department of Internal Medicine, Stanford University, Stanford, CA 94304, USA.
Life (Basel, Switzerland)
|October 27, 2022
Summary
Hyperammonemia can occur after organ transplants, rarely more than 30 days post-surgery. Prompt diagnosis of hyperammonemic encephalopathy is crucial to prevent seizures and brain swelling.
Area of Science:
- Nephrology
- Neurology
- Transplantation Medicine
Background:
- Hyperammonemia is a known complication following solid organ transplantation, especially lung transplants.
- It is uncommon for hyperammonemia to manifest over 30 days post-transplantation.
Observation:
- Hyperammonemic encephalopathy often presents with altered sensorium, potentially mimicking nonconvulsive status epilepticus (NCSE).
- Seizures are frequent in these patients and can be refractory to standard therapies.
- Elevated intracranial pressure and diffuse cerebral edema are commonly observed.
Findings:
- This condition highlights the critical need to identify the specific cause of hyperammonemic encephalopathy.
- Failure to diagnose can lead to severe neurological consequences.
Implications:
- Early identification and management of hyperammonemia are vital in post-transplant patients.
- This can prevent neurological deterioration, including status epilepticus, cerebral edema, and brain death.
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