Acupuncture for ICU patients: evidence, mechanisms, and implementation challenges

Area of Science:

• Critical Care Medicine
• Integrative Medicine
• Acupuncture Research

Background:

• Intensive care unit (ICU) patients often require significant analgesia and sedation, leading to potential complications.
• ICU-acquired weakness (ICU-AW), delirium, and gastrointestinal dysfunction are common challenges in critical care.
• Acupuncture, a traditional therapy, is being explored for its potential benefits in managing these ICU-related issues.

Purpose of the Study:

• To evaluate the clinical applications and mechanisms of acupuncture in ICU patients.
• To identify challenges in the implementation and standardization of acupuncture within the ICU.
• To provide a foundation for evidence-based advancement of acupuncture in critical care.

Main Methods:

• Comprehensive analysis of recent clinical studies, mechanistic investigations, and consensus guidelines.
• Systematic review of acupuncture's efficacy in analgesia, sedation, ICU-AW, delirium, and gastrointestinal dysfunction.
• Assessment of infection control, procedural standardization, and research design considerations.

Main Results:

• Acupuncture interventions effectively reduce analgesic/sedative medication use, mechanical ventilation duration, and ICU stay.
• Acupuncture can decrease the incidence of ICU-acquired weakness and delirium, while improving gastrointestinal motility.
• Mechanisms include vagus nerve activation, modulation of analgesic networks, HPA axis restoration, and enhanced microcirculation.
• Implementation challenges include infection control, procedural heterogeneity, and low-quality evidence.

Conclusions:

• Acupuncture is generally safe and offers multisystem regulatory effects for ICU patients, positioning it as a potential complementary therapy.
• Further validation through rigorous multicenter trials and standardized protocols is essential.
• Strict aseptic techniques and standardized operational frameworks are necessary before routine ICU integration.