ABSTRACT
The case report describes a 65-year-old man with arterial hypertension and a metallic aortic valve who presented to the emergency room for a loss of consciousness event and memory impairment. The electroencephalographic recording showed right temporal epileptiform activity followed by a 9 s asystole with quick consciousness recovery. The patient was diagnosed with right temporal epilepsy with asystole and was prescribed levetiracetam to prevent new events. A pacemaker was indicated in the follow-up for the long duration of the asystole, preventing major morbidity. Ictal asystole (IA) is a rare phenomenon of epilepsy that leads to syncope. It is observed in focal epilepsy, especially in left temporal epilepsy. Underlying cardiac pathology may facilitate IA, especially when the onset of the epilepsy is new. Knowledge of focal temporal semiology is key, concerning our case report, the memory impairment points to temporal pathology, and ictal vomiting in the non-dominant hemisphere. Anti-seizures drugs must be initiated in all patients, and there is a recommendation to avoid those with negative inotropic and arrhythmogenic effects (such as phenytoin, carbamazepine, and lacosamide). There is a discussion about pacemaker indication, however, it is highly recommended in non-controlled epilepsy and in ictal asystoles that last for more than 6 s to reduce morbidity.
Subject(s)
Electroencephalography , Heart Arrest , Humans , Male , Aged , Heart Arrest/etiology , Heart Arrest/complications , Epilepsy, Temporal Lobe/complications , Epilepsy, Temporal Lobe/physiopathology , Epilepsy, Temporal Lobe/diagnosis , Anticonvulsants/therapeutic use , Levetiracetam/therapeutic useABSTRACT
The presence of interatrial block (IAB) has been directly related to the appearance of various atrial tachyarrhythmias and therefore could be a risk factor for stroke. The objective of this study is to establish whether the presence of IAB could predict stroke recurrence in patients with a previous episode. METHODS: We included all patients discharged from our hospital in 2011 following treatment for stroke, excluding those of cardioembolic or lacunar etiology. For all patients we analyzed the ECG recordings, determined whether the patient presented cardiovascular risk factors, and determined the presence and type of IAB. An IAB was defined as partial if the P-wave duration was ≥120â¯ms, and advanced if the duration was ≥120â¯ms and presented biphasic morphology in the inferior leads. The primary endpoint was the recurrence of stroke and the secondary endpoint was the incidence of atrial tachyarrhythmias after the first episode. RESULTS: A total of 149 patients were identified (80 (71.5-86.0) years, 41% men). After a median follow-up of 3.96 (0.63-5.35) years, 54 deaths (36%) were observed, 27 patients (18%) had experienced stroke recurrence, and 20 (13%) had developed atrial tachyarrhythmias. On multivariate analysis, the presence of advanced IAB [HR: 2.3, 95% CI (1.0-5.5); pâ¯=â¯0.043] and diabetes [HR: 2.5, 95% CI (1.1-5.4); pâ¯=â¯0.018] were significantly associated with stroke recurrence. CONCLUSION: The presence of advanced IAB predicts the recurrence of stroke in patients with a previous episode. Further studies should be performed to investigate possible interventions.