Jayne J E, Catherwood E, Niles N W, Friedman B J
Division of Cardiology, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire 03756.
Cathet Cardiovasc Diagn. 1993 Jun;29(2):157-60. doi: 10.1002/ccd.1810290215.
Hemodynamic assessment of aortic stenosis in the catheterization laboratory accurate determination of the transvalvular gradient. A commercially available double-lumen pigtail catheter can be used to obtain this gradient via a single arterial puncture. The catheter has several advantages over other methods used to measure the gradient in aortic stenosis, but it has not been critically evaluated. In order to assess the performance of this catheter compared to the traditional standard of separate catheters above and across the aortic valve, we studied 10 patients with aortic stenosis using both catheter systems. Aortic valve areas ranged from 0.34 cm2 to 1.1 cm2. Linear regression analysis confirmed excellent correlation between the two methods in measurement of the mean transvalvular gradient (r = 0.98) and calculation of the aortic valve area (r = 0.99) using the Gorlin formula. We conclude that the double-lumen pigtail catheter provides accurate data in the hemodynamic evaluation of aortic stenosis.
经瓣膜压差的准确测定。一种市售的双腔猪尾导管可通过单次动脉穿刺来获取该压差。与用于测量主动脉瓣狭窄压差的其他方法相比，这种导管有几个优点，但尚未得到严格评估。为了评估这种导管与传统的分别置于主动脉瓣上方和穿过主动脉瓣的导管标准相比的性能，我们使用这两种导管系统对10例主动脉瓣狭窄患者进行了研究。主动脉瓣面积范围为0.34平方厘米至1.1平方厘米。线性回归分析证实，两种方法在使用戈林公式测量平均经瓣膜压差（r = 0.98）和计算主动脉瓣面积（r = 0.99）方面具有极好的相关性。我们得出结论，双腔猪尾导管在主动脉瓣狭窄的血流动力学评估中可提供准确的数据。
