Randomised trial of epinephrine dose and flush volume in term newborn lambs.

Randomised trial of epinephrine dose and flush volume in term newborn lambs.
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DOI:
10.1136/archdischild-2020-321034
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发表时间:
2021-11
期刊:
Archives of disease in childhood. Fetal and neonatal edition
影响因子:
--
通讯作者:
Lakshminrusimha S
Lakshminrusimha S
中科院分区:
其他
文献类型:
--
作者:
Sankaran D;Chandrasekharan PK;Gugino SF;Koenigsknecht C;Helman J;Nair J;Mathew B;Rawat M;Vali P;Nielsen L;Tancredi DJ;Lakshminrusimha S

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新生儿复苏指南建议,尽管进行了有效的正压通气 (PPV) 和胸外按压 (CC),但仍会出现持续性心动过缓,在通过低位脐静脉导管注射 0.01–0.03mg/kg 肾上腺素后,用 0.5–1mL 生理盐水冲洗。我们评估了 1mL 与 3mL/kg 冲洗量以及 0.01 与 0.03mg/kg 剂量对心脏骤停羔羊恢复自主循环 (ROSC) 和肾上腺素药代动力学的影响。四十只足月心脏骤停羔羊随机接受 0.01 或 0.03 mg/kg 肾上腺素,随后在有效 PPV 和 CC 后接受 1 mL 或 3 mL/kg 冲洗。每 3 分钟重复一次肾上腺素(用 1 mL 冲洗)直至 ROSC 或直至 20 分钟。监测血流动力学、血气和血浆肾上腺素浓度。 10 只羔羊在注射肾上腺素之前已恢复自主循环 (ROSC),其中 2 只在安装仪器期间死亡。在接受肾上腺素的 28 只羔羊中,2/6 在 0.01mg/kg-1 mL 冲洗中达到 ROSC,3/6 在 0.01mg/kg-3 mL/kg 冲洗中,5/7 在 0.03mg/kg-1 mL 冲洗中,9/9 在 0.03mg/kg-3 mL/kg 冲洗中实现 ROSC(p=0.02)。与 0.01mg/kg 相比,0.03mg/kg 肾上腺素的 ROSC 速度快五倍(调整后的 HR (95%CI) 5.08(1.7 至 15.25)),3mL/kg 冲洗的 ROSC 速度比 1mL 冲洗快三倍(3.5(1.27 至 9.71))。 0.01mg/kg-3 mL/kg 冲洗(调整后的几何平均比 6.0(1.4 至 25.7))、0.03mg/kg-1 mL 冲洗(11.3(2.1 至 60.3))和 0.03mg/kg-3 mL/kg 冲洗(11.0(2.2 至 60.3))的血浆肾上腺素浓度较高。 55.3)) 与 0.01 mg/kg-1 mL 冲洗液相比。 0.03 mg/kg 肾上腺素剂量和 3 mL/kg 冲洗量与最高 ROSC 率相关,增加血浆肾上腺素峰值浓度并加快 ROSC 时间。有必要进行评估最佳肾上腺素剂量和冲洗量的临床试验。
Neonatal resuscitation guidelines recommend 0.5–1 mL saline flush following 0.01–0.03 mg/kg of epinephrine via low umbilical venous catheter for persistent bradycardia despite effective positive pressure ventilation (PPV) and chest compressions (CC). We evaluated the effects of 1 mL vs 3 mL/kg flush volumes and 0.01 vs 0.03 mg/kg doses on return of spontaneous circulation (ROSC) and epinephrine pharmacokinetics in lambs with cardiac arrest. Forty term lambs in cardiac arrest were randomised to receive 0.01 or 0.03 mg/kg epinephrine followed by 1 mL or 3 mL/kg flush after effective PPV and CC. Epinephrine (with 1 mL flush) was repeated every 3 min until ROSC or until 20 min. Haemodynamics, blood gases and plasma epinephrine concentrations were monitored. Ten lambs had ROSC before epinephrine administration and 2 died during instrumentation. Among 28 lambs that received epinephrine, 2/6 in 0.01 mg/kg-1 mL flush, 3/6 in 0.01 mg/kg-3 mL/kg flush, 5/7 in 0.03 mg/kg-1 mL flush and 9/9 in 0.03 mg/kg-3 mL/kg flush achieved ROSC (p=0.02). ROSC was five times faster with 0.03 mg/kg epinephrine compared with 0.01 mg/kg (adjusted HR (95% CI) 5.08 (1.7 to 15.25)) and three times faster with 3 mL/kg flush compared with 1 mL flush (3.5 (1.27 to 9.71)). Plasma epinephrine concentrations were higher with 0.01 mg/kg-3 mL/kg flush (adjusted geometric mean ratio 6.0 (1.4 to 25.7)), 0.03 mg/kg-1 mL flush (11.3 (2.1 to 60.3)) and 0.03 mg/kg-3 mL/kg flush (11.0 (2.2 to 55.3)) compared with 0.01 mg/kg-1 mL flush. 0.03 mg/kg epinephrine dose with 3 mL/kg flush volume is associated with the highest ROSC rate, increases peak plasma epinephrine concentrations and hastens time to ROSC. Clinical trials evaluating optimal epinephrine dose and flush volume are warranted.
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发表时间: 2017-06-01
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