Research suggests invasive monitoring for obesity surgery
Ambulatory Safety Monitor, March 31, 2005
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Obese patients undergoing laparoscopic gastric bypass surgery should have invasive monitoring with a blood vessel catheter, according to new research.
The Archives of Surgery reported that detrimental blood flow and breathing changes were common in 13 obese patients receiving the procedure, according to Reuters.
At the beginning of laparoscopic operations, the abdomen is filled with carbon dioxide. A pulmonary artery catheter used to monitor the blood flow and breathing changes in the 13 patients showed changes in blood vessel and lung pressures. In addition, patients' blood became more acidic.
Blood vessel changes were also reported at the end of the procedure when the carbon dioxide was released.
Although switching the operating table to the head up/feet down position corrected some of the changes, it did not improve the blood acidity.
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