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  3. A rare and complicated procedure to separate twins conjoined at the head extended beyond 56 hours Monday as surgeons in Singapor

A rare and complicated procedure to separate twins conjoined at the head extended beyond 56 hours Monday as surgeons in Singapor

admin2010-01-18  59
问题    A rare and complicated procedure to separate twins conjoined at the head extended beyond 56 hours Monday as surgeons in Singapore entered the third day of an operation on 11-month-old Nepalese girls.
   Close to 20 specialists were participating in the surgery, which started at 4 p. m. local time on Friday and has dragged on far beyond the initial prediction of 38 hours and the revised forecast of 48 hours.
   "The doctors are still operating, " a Singapore General Hospital spokeswoman said at mid-morning on Monday.
   Doctor Keith Goh, the paediatric neurosurgeon leading the medical team, told the twins’ parents that a critical part of the surgery had been carded out successfully—the division of the main vein shared by the girls that drains blood from their heads, which developed fused in the womb.
   "When we see the doctors are happy, we are happy too, " The Straits Times quoted grandfather Arjun Dev Shrestha as saying.
   Doctor Chumpon Chan, the other main neurosurgeon involved, has also left the operating theatre more than once to give the family progress reports on Ganga and Jamuna.
   The twins faced opposite directions with their brains encased in the same skull. Physicians told the parents, Sandhya Shrestha and Bhushan K. C), that the planes of separation between the brains were not as convoluted as they had feared.
   The doctors, including anaesthesiologists, plastic surgeons, neurosurgeons and neurologists, have been working in teams and taking short breaks.
   The parents have maintained a vigil at the hospital, going occasionally to a nearby Sikh temple to pray.
   They have been in Singapore with their daughters since October. The plight of the impoverished family prompted contributions of 650, 000 Singapore dollars (365, 000 U. S. dollars) from the public to pay for medical treatment, the operation and follow-up care.
   The physicians donated their services.
   The twins, who turned 11-months-old on Monday, were named after two rivers regarded as holy in India.
   Twins fused at the head occur only once in about 2 million live births.
   Goh said earlier Ganga and Jamuna’s case was similar to that of Siamese twins operated on in South Africa in 1997 by Doctor Benjamin Carson from The Johns Hopkins Hospital in Baltimore in the United States. He discussed with Carson over the telephone the best way to separate Ganga and Jamuna
About the operation ______.
选项 A、it is successful
B、it is complicated
C、it is the first case
D、it is a failure result
答案B
解析 第三段提到医生说有一个关键部分已经获得成功，但手术并没有彻底完成，因此还无法下成功或失败的定论，最后一段讲到了1997年的一个例子，故该手术并非第一起。故选B，这在第一段已有提示。
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