期刊
REGIONAL ANESTHESIA AND PAIN MEDICINE
卷 -, 期 -, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/rapm-2023-104816
关键词
Anesthesia; Local; Nerve Block; Pain; Postoperative; REGIONAL ANESTHESIA
Since 2016, the erector spinae plane block (ESPB) has been widely used as a regional anesthetic technique. However, there is ongoing controversy over the mechanism of action of ESPB. This paper reviews the spread of local anesthetic to different neural structures and the potential role of the dorsal root ganglion (DRG) in ESPB and other intertransverse process blocks.
Since its description in 2016, the erector spinae plane block (ESPB) has become a widely employed regional anesthetic technique and kindled interest in a range of related techniques, collectively termed intertransverse process blocks. There has been ongoing controversy over mechanism of action of the ESPB, mainly due to incongruities between results of cutaneous sensory testing, clinical efficacy studies, and investigations into the neural structures that are reached by injected local anesthetic (LA). This paper reviews the spread of LA to the paravertebral and epidural space and the cutaneous anesthesia in ESPB, with specific emphasis on the dorsal root ganglion (DRG). We hypothesize that the DRG, due to its unique and complex microarchitecture, represents a key therapeutic target for modulation of nociceptive signaling in regional anesthesia. This paper discusses how the anatomical and physiological characteristics of the DRG may be one of the factors underpinning the clinical analgesia observed in ESPB and other intertransverse process blocks.
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