Dee P M, Suratt P M, Bray S T, Rose C E
Chest. 1984 Mar;85(3):363-6. doi: 10.1378/chest.85.3.363.
Two quadriplegic patients suddenly lost consciousness and were found to have an elevated alveolar-arteriolar oxygen gradient. Their chest x-ray films were normal. Perfusion scintiscans of their lungs showed large areas with markedly reduced or absent perfusion. Ventilation scintiscans demonstrated absent or decreased ventilation to the hypoperfused areas, suggesting mucous plugging. In quadriplegic subjects who have an ineffective cough, acute mucous plugging can produce the sudden onset of hypoxia with essentially normal chest x-ray films, thus mimicking acute pulmonary embolism.
两名四肢瘫痪患者突然失去意识，发现其肺泡-动脉氧分压差升高。他们的胸部X光片正常。肺部灌注闪烁扫描显示大片区域灌注明显减少或缺失。通气闪烁扫描显示灌注不足区域通气缺失或减少，提示黏液阻塞。在咳嗽无力的四肢瘫痪患者中，急性黏液阻塞可导致在胸部X光片基本正常的情况下突然出现缺氧，从而酷似急性肺栓塞。
