Conjoined twins may face 4-day surgery

SINGAPORE — A pair of 29-year-old Iranian twin sisters, joined at the head, underwent brain scans today ahead of a marathon operation that could finally separate them — or could kill one or both.

After a lifetime of compromises on everything from when to wake up each day to what career to pursue, Ladan and Laleh Bijani said they preferred to face the dangers of the surgery — which could last up to four days — rather than continue living joined.

"If God wants us to live the rest of our lives as two separate, independent individuals, we will," Ladan said Saturday.

The lead neurosurgeon, Dr. Keith Goh, told reporters that the surgery would begin once the scans were complete.

The twins have said they wanted to walk into the operating room at Singapore's Raffles Hospital — rather than be put to sleep beforehand and wheeled in — as a sign of courage.

"We've never been as confident as we are now," Ladan said. "We are prepared by all means to embrace the risks and walk into the operation room."

The operation will mark the first time surgeons have tried to separate adult craniopagus twins — siblings born joined at the head — since the procedure was first successfully performed in 1952. The surgery has so far only been performed on infants, whose brains can more easily recover.

An international team of 28 doctors and about 100 medical assistants will participate in the surgery.

Ladan said they would spend the hours before the operation reading the Quran and performing ritual Muslim ablutions. "We feel closer to God that way," she said.

Ladan spoke Saturday, just before doctors conducted four hours of last-minute tests on the sisters to study how blood flows through their brains.

The tests revealed a new medical reason for the surgery to proceed, Goh said on Saturday. The pressure inside the twins' brains was more than twice what it should be.

The discovery led doctors "to believe this is something quite necessary, not cosmetic or frivolous," Goh told a news conference late Saturday.

"Rest assured, we're all here to help you. Please stay positive," Dr. Benjamin Carson, one of six international experts assisting in the surgery, told the sisters when he met them on the eve of the operation, according to a hospital statement.