Modified Valsalva Maneuver for Venous Cannulation in Cardiopulmonary Bypass for Minimal Incision Mitral Valve Surgery.

A 69-year-old man underwent minimal incision mitral valve repair for severe symptomatic mitral regurgitation. The echocardiography showed that he had normal left ventricular function with a moderately to severely dilated left atrium, a mildly dilated right atrium, and a large patent foramen ovale. The multistage venous cannulation was very challenging because we could not negotiate the guide wire from the inferior vena cava via the right atrium into the superior vena cava. Despite several attempts, the guide wire would pass into the patent foramen ovale. Methods that we routinely attempt with difficult cannulations such as withdrawing and reinserting, twisting, and to-and-fro movements did not result in success. Eventually, we attempted a novel maneuver, the modified "Valsalva maneuver," that worked incredibly well.