AI指示通过外周静脉输注多巴酚丁胺而不监测外渗，忽略组织坏死风险
AI instructs administration of dobutamine through a peripheral IV without monitoring for extravasation, ignoring risk of tissue necrosis
ID: medical/iv-dobutamine-extravasation
根因分析
多巴酚丁胺是发疱性儿茶酚胺类药物；外渗可导致严重的局部血管收缩、缺血和组织坏死，需手术清创。指南要求通过中心静脉或经外周中心静脉导管（PICC）输注，若输注时间>6小时或浓度>2 mg/mL。外周静脉仅可接受短期（<6小时）输注，且需每30分钟严格监测。
English
Dobutamine is a vesicant catecholamine; extravasation can cause severe local vasoconstriction, ischemia, and tissue necrosis requiring surgical debridement. Guidelines mandate administration via central line or peripherally inserted central catheter (PICC) for infusions >6 hours or concentrations >2 mg/mL. Peripheral IV is only acceptable for short-term (<6h) infusion with strict monitoring every 30 minutes.
官方文档
https://www.ins1.org/ins-standards-of-practice/解决方案
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For dobutamine infusion >6 hours or concentration >2 mg/mL: insert a central line (subclavian, IJ, or PICC). For short-term peripheral use (<6h, <2 mg/mL): use a 20G or larger catheter in a large vein (antecubital, forearm), secure well, and check site every 30 minutes for pallor, swelling, or pain. Document site condition hourly.
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If extravasation is suspected: stop infusion immediately, disconnect IV, elevate extremity, apply warm compress (not cold, as cold worsens vasoconstriction), and administer phentolamine 5-10 mg diluted in 10 mL saline subcutaneously around the extravasation site within 12 hours. Notify provider and document.
无效尝试
常见但无效的做法:
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Suggesting that diluting dobutamine to a lower concentration reduces extravasation risk enough for peripheral use
70% 失败
Dilution reduces but does not eliminate risk; even low doses can cause vasoconstriction if extravasation occurs. Central access is still recommended for prolonged infusions.
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Telling staff to 'just watch the site' without a formal monitoring protocol
80% 失败
Extravasation can occur silently; without scheduled checks (every 30 min for peripheral, every hour for central), early signs may be missed, leading to severe injury.
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Recommending use of a butterfly needle for short-term dobutamine infusion
60% 失败
Butterfly needles are rigid and increase risk of vessel puncture and extravasation; a short peripheral catheter (18-20G) is preferred if peripheral is unavoidable.