Barasch E, Conger J L, Kadipasaoglu K A, Peters J J, Nesdahl K, Fenimore J G, Wilson J M, Vaughn W K, Ferguson J J
St. Luke's Episcopal Hospital, Texas Heart Institute, Baylor College of Medicine, Houston, USA.
Cathet Cardiovasc Diagn. 1996 Oct;39(2):207-12; discussion 213. doi: 10.1002/(SICI)1097-0304(199610)39:2<207::AID-CCD23>3.0.CO;2-C.
We sought to determine the effect of balloon material, balloon length, and inflation sequence on the straightening forces generated during percutaneous transluminal coronary angioplasty (PTCA) in angulated segments. Using an in vitro model consisting of a curved channel (3/4" radius) with a displaceable pressure sensor, we examined four different balloon materials: compliant (POC), semicompliant (PE600 and Duralyn), and noncompliant (PET), two balloon lengths (20 mm and 40 mm), and two inflation sequences (rapid and slow) with continuous recording of straightening force during each balloon inflation. Three balloons were tested for each combination of materials, length, and inflation sequence. Long balloons exerted significantly lower straightening forces. There were significantly higher straightening forces with noncompliant, particularly short, balloons. Varying the inflation sequence had no significant effect. For PTCA in angulated segments: (1) long balloons produce lower straightening force, (2) noncompliant balloons produce higher straightening force, particularly with short balloons, and (3) varying the inflation sequence has no significant effect on straightening force.
我们试图确定球囊材料、球囊长度和充盈顺序对成角节段经皮腔内冠状动脉成形术（PTCA）过程中产生的矫直力的影响。我们使用了一个体外模型，该模型由一个带有可移动压力传感器的弯曲通道（半径3/4英寸）组成，研究了四种不同的球囊材料：顺应性球囊（POC）、半顺应性球囊（PE600和Duralyn）和非顺应性球囊（PET），两种球囊长度（20毫米和40毫米），以及两种充盈顺序（快速和缓慢），并在每次球囊充盈过程中持续记录矫直力。对材料、长度和充盈顺序的每种组合进行了三个球囊的测试。长球囊产生的矫直力明显较低。非顺应性球囊，尤其是短球囊，产生的矫直力明显更高。改变充盈顺序没有显著影响。对于成角节段的PTCA：（1）长球囊产生较低的矫直力，（2）非顺应性球囊产生较高的矫直力，尤其是短球囊，（3）改变充盈顺序对矫直力没有显著影响。
