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本文测定48名阵发性心律失常患者(心房扑动或纤颤27例,室上性心动过速12例,室性心动过速9例)发作时血中儿茶酚胺含量,对其中38名在取血样时,注入标志的人血清白蛋白以测定心输出量。在恢复窦性心率后2～24小时内,对38名患者重复测定血中儿茶酚胺含量一次,并对其中25名同时测定心输出量。血浆儿茶酚胺含量是用萤光法测定的。结果:心律失常发作时,血浆去甲肾上腺素含量平均为1.22±0.2(0.0～6.3)微克/升,而心率恢复后则降至0.34±0.06(0.0～1.38)微克/升(P<0.001)。肾上腺素的含量则分别为0.72±0.13(0.0～3.9)和0.26±0.04(0.0～1.00)(P<0.001)。但要指出,48名患者中有6例心律失常发作时,血中查不到去甲肾上腺素,但肾上腺素含量却较高。相反有3名血中无
In this paper, 48 patients with paroxysmal arrhythmia (atrial flutter or fibrillation in 27 cases, supraventricular tachycardia in 12 cases, ventricular tachycardia in 9 cases) the onset of catecholamine levels in the blood, of which 38 were taking Blood samples were injected with labeled human serum albumin to determine cardiac output. Within 24 hours after the recovery of sinus heart rate, 38 patients were tested for catecholamine levels in the blood repeatedly, and 25 of them were tested for cardiac output at the same time. Plasma catecholamine levels were determined by fluorometry. Results: Plasma norepinephrine levels were 1.22 ± 0.2 (0.0 to 6.3) μg / L on arrhythmia episode and 0.34 ± 0.06 (0.0 to 1.38) μg / L on recovery from heart rate (P <0.001) . The levels of epinephrine were 0.72 ± 0.13 (0.0-3.9) and 0.26 ± 0.04 (0.0-1.00), respectively (P <0.001). However, to point out that in 48 patients in 6 cases of arrhythmia attack, the blood can not find norepinephrine, but the epinephrine content is higher. On the contrary, there is no blood in 3