Caldwell B D, Marrochello V S
Department of Podiatric Medicine, Ohio College of Podiatric Medicine, Cleveland, USA.
J Am Podiatr Med Assoc. 1996 Jun;86(6):249-52. doi: 10.7547/87507315-86-6-249.
Cyanosis of the digits may have several etiologies ranging from trauma to connective tissue disease; however, the most common cause of the so-called blue toe syndrome is atheroembolic disease or aneurysm and is frequently misdiagnosed on initial presentation. Pedal pulses are often palpable which may misdirect the physician from a diagnosis of vascular pathology. Furthermore, the proximal source of embolic shower may be far from the sight of symptoms. Noninvasive vascular testing, peripheral angiography, abdominal and popliteal ultrasonography, and echocardiography are all techniques that may be beneficial in discovering the origin of emboli. Atheroembolisms and aneurysms can be limb-threatening or life-threatening and hence early diagnosis is imperative.
手指发绀可能有多种病因，从创伤到结缔组织病不等；然而，所谓蓝趾综合征最常见的病因是动脉粥样硬化栓塞性疾病或动脉瘤，且在初次就诊时常常被误诊。足部脉搏通常可以触及，这可能会使医生误诊血管病变。此外，栓子的近端来源可能远离症状部位。无创血管检测、外周血管造影、腹部和腘窝超声检查以及超声心动图都是有助于发现栓子来源的技术。动脉粥样硬化栓塞和动脉瘤可能会威胁肢体或生命，因此早期诊断至关重要。
