同: 緊張性気脳症

WordNet

(psychology) a state of mental or emotional strain or suspense; "he suffered from fatigue and emotional tension"; "stress is a vasoconstrictor" (同)tenseness, stress
the physical condition of being stretched or strained; "it places great tension on the leg muscles"; "he could feel the tenseness of her body" (同)tensity, tenseness, tautness
(physics) a stress that produces an elongation of an elastic physical body; "the direction of maximum tension moves asymptotically toward the direction of the shear"
a balance between and interplay of opposing elements or tendencies (especially in art or literature); "there is a tension created between narrative time and movie time"; "there is a tension between these approaches to understanding history"
the action of stretching something tight; "tension holds the belt in the pulleys"

PrepTutorEJDIC

〈U〉『ぴんと張ること』,伸長;ぴんと張った状態,張り / 〈U〉(精神的・感情的)『緊張』 / 〈C〉《複数形で》(一般に)『緊張状態(関係)』 / 〈U〉張力,引っ張る力 / 〈U〉起電力;電圧(voltage)

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/27 22:33:12」(JST)

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Large pneumocephaly secondary to surgical wound.

Pneumocephalus is the presence of air or gas within the cranial cavity. It is usually associated with disruption of the skull: after head and facial trauma, tumors of the skull base, after neurosurgery or otorhinolaryngology, and rarely, spontaneously. Pneumocephalus can occur in scuba diving, but is very rare in this context.

If there is a valve mechanism which allows air to enter the skull but prevents it from escaping, a tension pneumocephalus can occur (similar to what can happen in a tension pneumothorax).

CT scans of patients with a tension pneumocephalus typically show air that compresses the frontal lobes of the brain, which results in a tented appearance of the brain in the skull known as the Mount Fuji sign.^[1]^[2]^[3] The name is derived from the resemblance of the brain to Mount Fuji in Japan, a volcano known for its symmetrical cone. In typical cases, there is a symmetrical depression near the midline (such as the crater of a volcano), due to intact bridging veins.^[3] Its occurrence seems to be limited to tension pneumocephalus (not occurring in pneumocephalus without tension).^[4] The sign was first described by a team of Japanese neurosurgeons.^[5]

Footnotes

^ Michel SJ (August 2004). "The Mount Fuji sign". Radiology 232 (2): 449–50. doi:10.1148/radiol.2322021556. PMID 15286317. http://radiology.rsnajnls.org/cgi/pmidlookup?view=long&pmid=15286317.
^ Sadeghian H (September 2000). "Mount Fuji sign in tension pneumocephalus". Archives of Neurology 57 (9): 1366. doi:10.1001/archneur.57.9.1366. PMID 10987907. http://archneur.ama-assn.org/cgi/pmidlookup?view=long&pmid=10987907.
^ ^a ^b Heckmann JG, Ganslandt O (April 2004). "Images in clinical medicine. The Mount Fuji sign". The New England Journal of Medicine 350 (18): 1881. doi:10.1056/NEJMicm020479. PMID 15115834. http://content.nejm.org/cgi/pmidlookup?view=short&pmid=15115834&promo=ONFLNS19.
^ Ishiwata Y, Fujitsu K, Sekino T, et al. (January 1988). "Subdural tension pneumocephalus following surgery for chronic subdural hematoma". Journal of neurosurgery 68 (1): 58–61. doi:10.3171/jns.1988.68.1.0058. PMID 3335913.
^ Ishiwata Y, Fujino H, Kubokura T, Tsubone K, Sekino T, Fujitsu K (April 1987). "[Subdural tension pneumocephalus following surgery of chronic subdural hematoma]" (in Japanese). No shinkei geka. Neurological surgery 15 (4): 419–24. PMID 3614535.

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1. 急性重度外傷性脳損傷のマネージメント management of acute severe traumatic brain injury
2. Approach to eye injuries in the emergency department
3. スキューバダイビングの合併症 complications of scuba diving
4. 産婦人科における硬膜外・脊椎麻酔の副作用 adverse effects of neuraxial analgesia and anesthesia for obstetrics
5. 小児における神経画像検査へのアプローチ approach to neuroimaging in children

English Journal

Efficacy of the pedicled nasoseptal flap without cerebrospinal fluid (CSF) diversion for repair of skull base defects: incidence of postoperative CSF leaks.

Eloy JA, Kuperan AB, Choudhry OJ, Harirchian S, Liu JK.SourceDepartment of Otolaryngology-Head & Neck Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, NJ; Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, NJ; Department of Neurological Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, NJ. jean.anderson.eloy@gmail.com.
International forum of allergy & rhinology.Int Forum Allergy Rhinol.2012 Apr 23. doi: 10.1002/alr.21040. [Epub ahead of print]
BACKGROUND: The advances in endoscopic skull base surgery have led to the resection of increasingly larger cranial base lesions and the creation of larger skull base defects with the potential for increased postoperative high-flow cerebrospinal fluid (CSF) leaks. These concerns led to the developmen
PMID 22528686

Tension Pneumocephalus: An Uncommon Cause of Altered Mental Status.

Simmons J, Luks AM.SourceDepartment of Emergency Medicine, Madigan Army Medical Center, Tacoma, Washington.
The Journal of emergency medicine.J Emerg Med.2012 Apr 14. [Epub ahead of print]
BACKGROUND: Pneumocephalus is a rare cause of altered mental status in patients presenting to the Emergency Department. Occurring as a result of traumatic or iatrogenic violation of the dura, it can cause significant morbidity and mortality if tension physiology develops whereby air continues to acc
PMID 22504087

Japanese Journal

外傷後水頭症に対する脳室腹腔シャント術後に緊張性気脳症をきたした1例

黒木貴夫,根本匡章,原田直幸 [他]
東邦医学会雑誌 57(4), 263-268, 2010-07
NAID 40017210109

Tension Pneumocephalus as a Complication of Lumbar Drainage for Cerebral Aneurysm Surgery : Case Report

SAITO Katsuya,INAMASU Joji,KURAMAE Takumi,NAKATSUKASA Masashi,KAWAMURA Fumio
Neurologia medico-chirurgica = 神経外科 49(6), 252-254, 2009-06-15
… A 66-year-old man developed tension pneumocephalus after failed lumbar drainage before clipping surgery for a ruptured anterior communicating artery aneurysm. … Computed tomography revealed tension pneumocephalus with marked brain shift. …
NAID 10025947935