Nerurkar S N, Jindal G D, Pedhenekar S A, Gupta D K, Deshpande A K, Deshmukh H L, Parulkar G B
Department of Cardiovascular, Seth G. S. Medical College, Parel, Bombay, Maharashtra.
J Postgrad Med. 1990 Jul;36(3):154-7.
Forty patients with symptoms of neuro-vascular compression in the upper extremities were subjected to impedance plethysmographic study using Parulkar's method. Two patients recorded decreased blood flow (BFI) in supine position and were diagnosed as having partial occlusion at subclavian level. Sixteen of the patients recorded decreased BFI on 90 degrees abduction and hyper-abduction. Twelve of these patients had radiological evidence of anomalous cervicle ribs. In remaining four patients extrinsic impression on the subclavian artery due to fibrous deposits was confirmed by arteriography. Remaining 22 patients recorded normal impedance plethysmograms. Impedance plethysmography thus provided a non-invasive modality for confirmation of vascular compression in thoracic outlet syndrome.
40例有上肢神经血管压迫症状的患者接受了使用Parulkar方法的阻抗体积描记研究。2例患者在仰卧位时记录到血流减少（血流指数），被诊断为锁骨下水平部分闭塞。16例患者在90度外展和过度外展时记录到血流指数下降。其中12例患者有颈椎肋骨异常的影像学证据。其余4例患者经动脉造影证实锁骨下动脉有纤维沉积物造成的外部压迫。其余22例患者记录到正常的阻抗体积描记图。因此，阻抗体积描记术为胸廓出口综合征中血管压迫的确认提供了一种非侵入性方法。
