Trial reportFrontiers in medicine2026
Preoperative and postoperative ultrasound guided intercostal nerve blockade on postoperative analgesia in patients undergoing video assisted thoracic surgery (VATS): a prospective randomized comparative study.
Trial report in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
Objectives: Ultrasound-guided intercostal nerve block (ICNB) is an effective modality for alleviating pain after video-assisted thoracic surgery (VATS). However, the optimal timing for its administration remains controversial. This study aimed to compare the analgesic efficacy of preoperative versus postoperative ICNB in patients undergoing VATS. Methods: A total of 172 adult patients undergoing VATS were randomized into two parallel groups: the pre-ICNB group (preoperative ultrasound-guided ICNB, Results: The incidence of moderate-to-severe resting pain during the first 24 h postoperatively was significantly lower in the post-ICNB group than in the pre-ICNB group (11.9% vs. 28.4%, Conclusion: Postoperative ICNB provides superior early postoperative analgesia, reduces postoperative opioid requirements, and improves sleep quality compared with preoperative ICNB. These findings suggest that postoperative administration is a more effective strategy for acute pain management following VATS. Clinical trial registration: https://www.chictr.org.cn/showproj.aspx?proj=183278, identifier ChiCTR2300079183.
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