BerbeeWalsh Department of Emergency Medicine, University of Wisconsin-Madison, Madison, WI.
BerbeeWalsh Department of Emergency Medicine, University of Wisconsin-Madison, Madison, WI; Med Flight, University of Wisconsin-Madison Hospitals and Clinics, Madison, WI.
Air Med J. 2024 Jul-Aug;43(4):357-359. doi: 10.1016/j.amj.2024.03.014. Epub 2024 Apr 17.
Point-of-care ultrasound (POCUS) is a safe diagnostic tool that clinicians use to rapidly evaluate critically ill patients. POCUS has expanded into the prehospital setting and has been demonstrated to be accurate, feasible, and helpful in guiding clinical decision making. Additionally, the American College of Emergency Physicians recommends the use of echocardiography to evaluate for ventricular activity in the setting of cardiac arrest. There is minimal evidence regarding the use of POCUS to confirm mechanical capture in patients undergoing transcutaneous pacing. This case report highlights the use of POCUS in a patient with bradyasystolic cardiac arrest requiring transcutaneous pacing. Despite electrical capture, the patient had absent central pulses; however, POCUS demonstrated ventricular contractions, indicating mechanical capture. This suggests a role for POCUS for the evaluation of mechanical capture in patients undergoing cardiac pacing.
床旁超声（POCUS）是一种安全的诊断工具，临床医生可使用它快速评估危重症患者。POCUS 已扩展到院前环境，并已被证明在指导临床决策方面是准确、可行和有帮助的。此外，美国急诊医师学院建议在心脏骤停的情况下使用超声心动图评估心室活动。关于使用 POCUS 来确认接受经皮起搏的患者的机械性捕获的证据很少。本病例报告强调了在需要经皮起搏的心动过缓和心搏骤停患者中使用 POCUS 的情况。尽管存在电捕获，但患者的中央脉搏仍然缺失；然而，POCUS 显示出心室收缩，表明机械性捕获。这表明 POCUS 在评估接受心脏起搏的患者的机械性捕获方面具有一定作用。
