Her pulmonary arterial pressure, dyspnea and oxygenation improved after ligation of the original high-flow arteriovenous fistula and creation of a low-flow alternative.

• 然而，在高流速廔管结扎并以低流速廔管取代后，病患的肺动脉高压、呼吸窘迫、以及血氧浓度均得到显著的改善。