A Simple Technique for Difficult Atriocaval Cannulation | 合法醫療器材資訊網
![A Simple Technique for Difficult Atriocaval Cannulation](https://i.imgur.com/6y29Lx7.jpg)
由PMatt著作·2007·被引用1次—Ifinsertionofthevenouscatheterintotheinferiorvenacavaisnotpossibleandwedonotwanttoperformbicavalcannulation,wecutthedual-stagecannula5 ...
![A Simple Technique for Difficult Atriocaval Cannulation](https://i.imgur.com/6y29Lx7.jpg)
To the Editor:
As generally performed with a large, dual-stage venous catheter, right atriocaval cannulation provides enough venous return for most cardiac surgical procedures. In some cases, insertion of the cannula tip into the inferior vena cava is difficult or impossible due to a variety of causes, such as a large Eustachian valve, a persistent Chiari network, or atrial adhesions. Forced positioning of the catheter is harmful and may lead to damage and hazardous bleeding complications in the right atrium, inferior vena cava, or both. Transesophageal ultrasonic guidance or bicaval cannulation seems to be appropriate in such situations, but it too can be difficult and takes time. We describe a simple technique for using the dual-stage catheter and thereby avoiding bicaval cannulation.
In regular cardiopulmonary bypass surgery, we use a single dual-stage cannula...
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