Word: catheterizations
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Also at Columbia, Dr. Karlis Adamsons Jr. decided that as valuable as the Liley technique may be, it is still too little and too late in too many cases. What the fetus may need, he reasoned, is a massive, virtually total exchange transfusion. But how to give it? In one...
Dr. Adamsons has since tried another approach. He has cut into the uterus and into the fetus' peritoneal cavity, and there he has implanted an extremely fine catheter that can be left in place. All six fetuses operated on in this way continued to develop for a month or...
Back in Auckland during Dr. Liley's absence, Surgeon Graham C. Liggins has found a way to insert a catheter through the bore of a hypodermic needle, then anchor it in the peritoneum in such a way that no matter how much the fetus squirms, the catheter will not...
Monitoring the operation through an image intensifier-a refined fluoroscope that produces an X-ray image 1,500 times Drighter than the old-style fluoroscopic screen-Drs. Sones and Shirey then release a tiny amount of radiopaque dye through the catheter into the aorta in order to locate the spot...
Dr. Sones admits that his technique involves some risk. Although the catheter is less than half as thick as an average coronary artery, it can still obstruct the flow of blood into the heart. Throughout the operation, Drs. Sones and Shirey monitor the pressure of the blood against the catheter...