Since the original publication on the erector spinae plane (ESP) block in 2016,\nthe technique of the ESP block has evolved significantly in the last few years.\nThis review highlights recent developments in the technique for administering\nthe ESP block and proposes directions for future research. Continuous efforts\nare being aimed at improving understanding regarding the administration of\nthe ESP block. Current reports suggest that the ESP block provides effective\nanalgesia in thoracic and abdominal sites in patients of all ages. However, no\ncohort studies or randomized controlled trials were performed in 2016 and\n2017. The ESP block is an effective analgesic tool in a wide range of sites.\nHowever. We are uncertain how effective the ESP block is compared to other\ntypes of regional anesthesia. Therefore, more research on ESP blocks is required.
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