CAJ | 학술논문

　　目的探讨平板运动试验恢复期出现ST段压低的特点和原因。方法分析17例飞行员平板运动试验恢复期ST段压低的形态、持续时间以及同导联P波振幅、P-R段和体检鉴定资料，并与同期102例飞行员运动试验阴性者比较。结果恢复期ST段压低者以Ⅱ、Ⅲ、aVF导联多见，占82.4%(14/17)；ST段压低在0.10～0.22 mV，平均(0.15±0.04)mV，ST段压低以Ⅲ导联最为显著；ST段压低持续时间2～5 min，平均(3.6±1.0)min，多在4 min内恢复正常，占76.5%(13/17)；ST段多呈J点型压低，占82.4%(14/17)，其中15例(88.2%)伴P-R段下斜型压低；恢复期ST段压低者，P波振幅在运动终点、运动后3 min以及运动后6 min均明显高于对照组(P＜0.01)。结论运动试验恢复期出现短暂性J点型ST段压低可能与心房复极向量增大有关，应注意结合同导联P波振幅和P-R段形态与病理性ST改变鉴别。
　　목적탐토평판운동시험회복기출현ST단압저적특점화원인。방법분석17례비행원평판운동시험회복기ST단압저적형태、지속시간이급동도련P파진폭、P-R단화체검감정자료，병여동기102례비행원운동시험음성자비교。결과회복기ST단압저자이Ⅱ、Ⅲ、aVF도련다견，점82.4%(14/17)；ST단압저재0.10～0.22 mV，평균(0.15±0.04)mV，ST단압저이Ⅲ도련최위현저；ST단압저지속시간2～5 min，평균(3.6±1.0)min，다재4 min내회복정상，점76.5%(13/17)；ST단다정J점형압저，점82.4%(14/17)，기중15례(88.2%)반P-R단하사형압저；회복기ST단압저자，P파진폭재운동종점、운동후3 min이급운동후6 min균명현고우대조조(P＜0.01)。결론운동시험회복기출현단잠성J점형ST단압저가능여심방복겁향량증대유관，응주의결합동도련P파진폭화P-R단형태여병이성ST개변감별。
Objective To probe into ST-segment depression characteristics and cause analysis of treadmill exercise test recovery phase.Methods The data of 17 pilots in treadmill exercise test recovery phase were analyzed in terms of ST-segment depression pat-tern,duration time,lead with P-wave amplitudes,P-R segments,and physical examination inform ation,and compared with 102 pilots with negative exercise tests at the same period.Results ST-segment depression in recovery phase show ed more frequently in Ⅱ,Ⅲ, aV F lead accounting for 82.4% (14/17),ST-segment depression was 0.10~0.22 mV with an average of(0.15±0.04)mV ,Ⅲlead was the m ost obvious in ST-segment depression.ST-segment depression duration time was 2~5 min with an average of(3.6±1.0)min.M ost got right within 4 min accounting for 76.5% (13/17).ST-segment depression took on J depression accounting for 82.4% (14/17).15 pilots (88.2% )had P-R declivity depression.ST-segment depression sufferers in recovery phase,P-wave amplitudes clearly were higher than those of the control group at exercise terminal,3 min,and 6 min after exercise(P<0.01).Conclusion In treadmill exercise test recov-ery phase,transient J-point ST-segment depression is probably related to atrial repolarization vector enlargem ent,so lead with P-wave amplitudes,P-R segment pattern,and pathologic ST changes should be combined together to identify.