Aerospace medicine and human performance · 2024
Embolic Ischemic Cortical Stroke in a Young Flight Instructor with a Small Patent Foramen Ovale.
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Rengel Anthony C, Gericke Christian
Аннотация
BACKGROUND: Stroke in young patients is frequently associated with a patent foramen ovale (PFO). Controversy exists over whether the PFO is a cause, a risk factor, or an incidental finding. Estimating the individualized risk of stroke recurrence has been difficult to ascertain. This has implications for aeromedical certification for pilots following stroke recovery.
CASE REPORT: A 28-yr-old male flight instructor presented with sudden onset unilateral facial paresthesia, hand weakness, and blurred vision, accompanied by gradual onset bilateral headache. While the cranial symptoms resolved, left hand weakness persisted for 3 d. MRI revealed two punctate ischemic foci in the right precentral gyrus and superior parietal lobe. A transesophageal echocardiogram revealed a PFO with a small bidirectional shunt. His cardiologist and neurologist advised the PFO was unlikely to have caused his stroke and estimated an annual recurrence rate of < 1.8%. He was treated medically and declined PFO closure. He was able to return to flying light-sport aircraft. However, an enduring copilot restriction for general aviation activities was placed on his Class 1 and 2 medical certificates.
DISCUSSION: This case highlights the difficulty in determining individualized recurrence risks for pilots recovering from a stroke associated with a PFO. While medical treatment does reduce the risk of recurrence, PFO closure provides marginal additional benefit in certain patients with a risk of side effects. Contemporary evidence-based risk scoring systems combined with echocardiography findings may be used together to better risk stratify patients and suitability for medical aviation recertification. Rengel AC, Gericke C. Embolic ischemic cortical stroke in a young flight instructor with a small patent foramen ovale. Aerosp Med Hum Perform. 2024; 95(10):784-787.
CASE REPORT: A 28-yr-old male flight instructor presented with sudden onset unilateral facial paresthesia, hand weakness, and blurred vision, accompanied by gradual onset bilateral headache. While the cranial symptoms resolved, left hand weakness persisted for 3 d. MRI revealed two punctate ischemic foci in the right precentral gyrus and superior parietal lobe. A transesophageal echocardiogram revealed a PFO with a small bidirectional shunt. His cardiologist and neurologist advised the PFO was unlikely to have caused his stroke and estimated an annual recurrence rate of < 1.8%. He was treated medically and declined PFO closure. He was able to return to flying light-sport aircraft. However, an enduring copilot restriction for general aviation activities was placed on his Class 1 and 2 medical certificates.
DISCUSSION: This case highlights the difficulty in determining individualized recurrence risks for pilots recovering from a stroke associated with a PFO. While medical treatment does reduce the risk of recurrence, PFO closure provides marginal additional benefit in certain patients with a risk of side effects. Contemporary evidence-based risk scoring systems combined with echocardiography findings may be used together to better risk stratify patients and suitability for medical aviation recertification. Rengel AC, Gericke C. Embolic ischemic cortical stroke in a young flight instructor with a small patent foramen ovale. Aerosp Med Hum Perform. 2024; 95(10):784-787.