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Robo-cirurgia: Uma aposta segura para a remoção do Gallbladder

por Lynn Shapiro, Writer | January 21, 2009
Robotic surgery
Using a robot to guide a camera in gallbladder surgery is as safe as working with a human being, researchers at the Royal Free Hospital in London said in the Cochrane Review journal.

Comparisons between robot- and human-assisted surgery showed that there were no differences in terms of morbidity, the need to switch to open surgery, total operating time, or length of stay in a hospital.

The preferred way of doing gallbladder removal surgery now is to use keyhole surgery that involves a surgeon and an assistant. In key-hole surgery, the surgeon sees inside the patient via a long camera introduced through a 1 cm abdominal cut. The camera guides the surgeon in using the surgical instruments introduced through other small cuts (ranging from 0.5 to 1 cm). The assistant's job is to move the camera, which acts as the surgeon's eyes.

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A range of robots can now perform this task. This study looked at trials involving 'Endoassist," 'Aesop,' 'Passist' and 'Zeus'.

To assess how well robots were performing, a team of researchers considered data from five randomized trials that included a total of 453 patients. The results showed a marginal (though not statistical) decrease in the numbers of gallbladders that burst during robot-assisted surgery, but overall there was no appreciable difference, researchers said.

"We need more trials that see whether the success rates using robotic assistants increase once surgeons have more experience using them," said lead researcher Kurinchi Gurusamy, who works at the University Department of Surgery at the Royal Free Hospital, London.

One of the aims behind using robots is that it could enable a surgeon to perform an emergency operation without having to wait for a human assistant to become available. This could have distinct advantages in countries where there are limits to the numbers of hours assistants are allowed to work, Gurusamy said.

Between 10 and 15 percent of the adult western population develop gallstones, placing a huge demand on health services. In the US alone, more than 500,000 people have their gall bladder removed each year, researchers said.

Read a report on robotic surgery in the December 2008 issue of DOTmed Business News, online at:
https://www.dotmed.com/images/magazine/archive/122008.pdf