Focal status epilepticus induced by hyperbaric oxygen therapy

Oxygen toxicity in central nervous system tissues is a known but rare side effect of hyperbaric oxygen therapy (HBOT). Prior research has shown that generalized tonic-clonic (GTC) seizures and status epilepticus are more frequently reported complications of HBOT. However, focal seizures remain poorly documented in this context. It was already known that HBOT increases oxygen delivery to tissues under pressure, but the mechanisms leading to focal seizure activity remain unclear. That uncertainty drove limited investigation into focal seizure types following HBOT. No prior work had resolved the frequency or clinical features of focal status epilepticus after HBOT. This gap motivated further case reporting to expand the evidence base. The literature suggests a need for better characterization of focal seizure patterns in HBOT recipients. This paper's contribution is in documenting a rare focal seizure manifestation following HBOT.

The aim of this case report is to document an unusual neurological complication of hyperbaric oxygen therapy. The specific problem is the underrepresentation of focal seizures in HBOT-related seizure literature. The motivation stems from the need to expand the clinical understanding of HBOT-induced neurological effects. This case highlights a patient who developed focal motor status after HBOT. The authors propose that focal seizures may be under-recognized in HBOT settings. The study seeks to contribute to the limited literature on focal seizures following HBOT. This case may help improve early recognition and management of focal status epilepticus in HBOT patients. The report adds to the growing body of evidence on HBOT-related neurological complications.

The study is a single case report of an 87-year-old male patient. The patient received HBOT for a decubitus ulcer. The researchers observed focal motor contractions in the left arm after repeated HBOT sessions. The diagnosis was based on clinical examination and brain imaging. MRI showed no evidence of acute ischemia or mass lesion. The treatment included IV phenytoin followed by oral administration. The authors used standard diagnostic criteria for focal status epilepticus. The study design relies on clinical observation and treatment response to phenytoin.

The patient exhibited focal motor contractions in the left arm following HBOT. No acute brain lesion was detected on MRI. IV phenytoin was administered at 20 mg/kg over 30 minutes. Oral phenytoin at 300 mg/d was continued after IV treatment. The patient had no further seizures after treatment initiation. The authors propose that focal status epilepticus may be a rare but possible complication of HBOT. This case is the first reported instance of focal status induced by HBOT. The treatment response supports the diagnosis of focal status epilepticus.

The authors suggest that focal status epilepticus is a rare but possible complication of HBOT. This case adds to the limited literature on focal seizures following HBOT. The diagnosis was supported by clinical presentation and treatment response. The absence of acute brain lesions on MRI supports the role of HBOT in seizure induction. The treatment with phenytoin was effective in managing the focal status. This case may help clinicians recognize focal seizures in HBOT patients. The authors propose that focal seizures should be considered in the differential diagnosis of HBOT-related neurological events. This report highlights the need for further investigation into focal seizure mechanisms in HBOT.