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Titolo:
Pressure changes observed in Codman-Medos programmable valves following magnetic exposure and filliping
Autore:
Miwa, K; Kondo, H; Sakai, N;
Indirizzi:
Hashima City Hosp, Dept Neurosurg, Hashima City, Gifu 5016206, Japan Hashima City Hosp Hashima City Gifu Japan 5016206 ty, Gifu 5016206, Japan Gifu Univ, Sch Med, Dept Neurosurg, Gifu 5008705, Japan Gifu Univ Gifu Japan 5008705 ch Med, Dept Neurosurg, Gifu 5008705, Japan
Titolo Testata:
CHILDS NERVOUS SYSTEM
fascicolo: 3, volume: 17, anno: 2001,
pagine: 150 - 153
SICI:
0256-7040(200102)17:3<150:PCOICP>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDROCEPHALUS;
Keywords:
programmable valve; hydrocephalus; MR imaging; impulse;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Miwa, K Hashima City Hosp, Dept Neurosurg, 3-246 Shinseicho, Hashima City,Gifu 5016206, Japan Hashima City Hosp 3-246 Shinseicho Hashima City Gifu Japan 5016206
Citazione:
K. Miwa et al., "Pressure changes observed in Codman-Medos programmable valves following magnetic exposure and filliping", CHILD NERV, 17(3), 2001, pp. 150-153

Abstract

Objects: We wished to find what pressure changes were caused in Codman-Medos programmable valve by magnetic exposure and filliping. This pressure-adjustable valve system was used in an experimental investigation of the changes measured in the pressure setting following MR exposure and other impulses. Methods: In one experiment, two valves were affixed to a human model: one was installed in the right retroauricular region and the other at the anterior chest wall. The pressure was changed in 58 (80.6%) of 72 tests in thevalve in the right retroauricular region and in 46 (63.9%) of 72 tests in the valve at the anterior chest wall. In some tests with the valve pressureoriginally set at 200 mmH(2)O striking changes to lower pressures were observed. In the other experiment, the changes of pressure settings in seven patients with a shunt system installed were checked before and after random filliping with the tip of an index finger 50 times. In all 7 patients, the pressures initially set were greatly changed, by up to 120 mmH(2)O of the maximum range. Conclusions: These results demonstrate that the pressure setting of the shunt system can be changed by various shocks, including magnetic impulses, and that the pressure level of the shunt system must be constantly monitored.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 22:14:14