A system of practical medicine . d sul)jectively also. There is diminution ofsensation (tactile, tliermic, algesic sensations being usually all more orless interfered with). The local syncope may involve one or two fingersand toes or all. Sometimes the nose and tips of the ears may be thechief or only seat of the circulatory changes. SYMPTOMS. 745 The condition may per^^ist for a variable length of time—minutes todays, rarely longer than fi*6m one to two hours. As the pallor diminishes and passes away it is succeeded by hyper-emia of the parts. When the reaction is intense, we have an actuallo
A system of practical medicine . d sul)jectively also. There is diminution ofsensation (tactile, tliermic, algesic sensations being usually all more orless interfered with). The local syncope may involve one or two fingersand toes or all. Sometimes the nose and tips of the ears may be thechief or only seat of the circulatory changes. SYMPTOMS. 745 The condition may per^^ist for a variable length of time—minutes todays, rarely longer than fi*6m one to two hours. As the pallor diminishes and passes away it is succeeded by hyper-emia of the parts. When the reaction is intense, we have an actuallocal asphyxia, constituting the second or a severer type of the condition may or may not be preceded by the stage of pallor (localsyncope). The tips of the fingers, toes, ears, or nose present a blue-black appearance. It is rare to meet with cases where all the extremeperipheral parts mentioned are simultaneously affected, usually not morethan one or two fingers on each hand during the same attack. Asphyx- FiG.
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