肺分支狭窄的球囊扩张 sizing：一种指导支架植入的有用方法。 （注：这里的“sizing”可能是特定医学语境下的术语，比如“测量尺寸”等，可根据具体医学知识进一步准确理解其含义，但仅按要求翻译是这样表述。）
Balloon sizing of pulmonary branch stenosis: a useful method to guide stent implantation.
作者信息
Nagm Ashraf M, Moore John W
机构信息
Mattel Children s Hospital at UCLA, 108333 Le Conte Avenue, B2-427 MDCC, Los Angeles, CA, 90095-1743, USA.
出版信息
J Invasive Cardiol. 2003 Aug;15(8):437-8.
UNLABELLED
Among patients with congenital heart disease, pulmonary branch stenosis is a common indication for stent implantation. Selective calibrated angiography is the standard method of vessel sizing to guide angioplasty balloon and stent selection. Our aim was to compare vessel dimensions from standard calibrated selective angiography with those obtained using a compliant sizing balloon catheter.
METHODS
9 patients with 11 pulmonary branch stenoses underwent selective calibrated angiography. Amplatzer sizing balloon catheters positioned across the stenoses were inflated with dilute contrast agent. Digital angiograms were repeated in the same projections. Measurements from both methods were analyzed statistically. Minimum, maximum proximal and maximum distal vessel diameters were all significantly larger (p < 0.01) when measured by the sizing balloon method. Angioplasty balloons and stent diameters were chosen according to the sizing balloon measurements. In 7 of 8 stented lesions, larger angioplasty balloon diameters were selected for stent implantation than would have been chosen by standard angiography. Calibrated selective angiography may undersize vessel diameters. Use of a compliant sizing balloon appears to offer an accurate method to guide stent implantation in pulmonary branch stenosis.
未标注
在先天性心脏病患者中，肺分支狭窄是支架植入的常见适应症。选择性校准血管造影是测量血管大小以指导血管成形术球囊和支架选择的标准方法。我们的目的是比较标准校准选择性血管造影所测得的血管尺寸与使用顺应性尺寸测量球囊导管所获得的血管尺寸。
方法
9例患有11处肺分支狭窄的患者接受了选择性校准血管造影。将横跨狭窄部位放置的Amplatzer尺寸测量球囊导管用稀释造影剂充盈。在相同投照角度重复进行数字血管造影。对两种方法的测量结果进行统计学分析。用尺寸测量球囊法测量时，最小、近端最大和远端最大血管直径均显著更大（p < 0.01）。血管成形术球囊和支架直径根据尺寸测量球囊的测量结果选择。在8个植入支架的病变中，有7个选择了比标准血管造影所选择的更大的血管成形术球囊直径用于支架植入。校准选择性血管造影可能会使血管直径测量偏小。使用顺应性尺寸测量球囊似乎为指导肺分支狭窄的支架植入提供了一种准确的方法。
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