Journal of Nippon Medical School: Vol.70 No.4 page.351

Journal of Nippon Medical School

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ArticleTitle A Case of Adversive Seizures Induced by Hyperventilation

AuthorList Yasuhiko Kawakami¹, Tsunenori Hirayama¹, Kiyoshi Hashimoto¹, Kentaro Kuwabara², Takehisa Fujita¹ and Osamu Fujino²

Affiliation ¹Department of Pediatrics, Nippon Medical School Second Hospital
²Department of Pediatrics, Chiba-Hokuso Hospital, Nippon Medical School

Language EN

Volume 70

Issue 4

Year 2003

Page 351-354

Received October 15, 2002

Accepted December 26, 2002

Keywords adversive seizure (s), hyperventilation, conjugate deviation, neck rotation

Abstract We report a case of adversive seizures featuring neck rotation and conjugate deviation induced by the hyperventilation maneuver. At the age of 6 years the patient suffered from conjugate deviation to the left. She herself felt no symptoms other than oculomotor symptoms. Hyperventilation induced an adversive seizure and ictal EEG showed sharp waves in the right frontal, central, and parietal areas. No brain image showed abnormal findings. Zonisamide completely attenuated her attacks. It is well known that hyperventilation induces absence seizures, and it has been reported that hyperventilation can induce complex partial seizures. However, no previous reports have described patients diagnosed as having adversive seizures with conjugate deviation induced by hyperventilation. We report the present case because, although its epileptogenesis is unknown, the patient is a rare case not only clinically but also electrophysiologically.

Correspondence to Yasuhiko Kawakami, MD, Department of Pediatrics, Nippon Medical School Second Hospital, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan
kawakami@nms.ac.jp

ArticleTitle	A Case of Adversive Seizures Induced by Hyperventilation
AuthorList	Yasuhiko Kawakami¹, Tsunenori Hirayama¹, Kiyoshi Hashimoto¹, Kentaro Kuwabara², Takehisa Fujita¹ and Osamu Fujino²
Affiliation	¹Department of Pediatrics, Nippon Medical School Second Hospital ²Department of Pediatrics, Chiba-Hokuso Hospital, Nippon Medical School
Language	EN
Volume	70
Issue	4
Year	2003
Page	351-354
Received	October 15, 2002
Accepted	December 26, 2002
Keywords	adversive seizure (s), hyperventilation, conjugate deviation, neck rotation
Abstract	We report a case of adversive seizures featuring neck rotation and conjugate deviation induced by the hyperventilation maneuver. At the age of 6 years the patient suffered from conjugate deviation to the left. She herself felt no symptoms other than oculomotor symptoms. Hyperventilation induced an adversive seizure and ictal EEG showed sharp waves in the right frontal, central, and parietal areas. No brain image showed abnormal findings. Zonisamide completely attenuated her attacks. It is well known that hyperventilation induces absence seizures, and it has been reported that hyperventilation can induce complex partial seizures. However, no previous reports have described patients diagnosed as having adversive seizures with conjugate deviation induced by hyperventilation. We report the present case because, although its epileptogenesis is unknown, the patient is a rare case not only clinically but also electrophysiologically.
Correspondence to	Yasuhiko Kawakami, MD, Department of Pediatrics, Nippon Medical School Second Hospital, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan kawakami@nms.ac.jp