Kaiser G, Bittel M
Chirurgische Universitäts-Kinderklinik, Inselspital Bern.
Eur J Pediatr Surg. 1992 Jun;2(3):186-7. doi: 10.1055/s-2008-1063437.
In the last 3 years an Orbis-Sigma system has been implanted in 40 hydrocephalic children (as a primary shunt in 28 and following another shunt system in 12). Its usefulness was tested by regular clinical examinations, head circumference measurement, ultrasonography or CT and the causes and frequency of shunt revisions. The preliminary results of a mean follow-up time of 1.4 years are discussed.
在过去3年中，40例脑积水患儿植入了奥比斯-西格玛系统（28例作为初次分流，12例在另一分流系统之后植入）。通过定期临床检查、头围测量、超声检查或CT以及分流装置翻修的原因和频率来检验其效用。讨论了平均随访时间为1.4年的初步结果。
