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16 January 2019 : Clinical Research  

Ropivacaine for Intercostal Nerve Block Improves Early Postoperative Cognitive Dysfunction in Patients Following Thoracotomy for Esophageal Cancer

Yanbing Wang1C, Jian Cheng1CD, Liu Yang2D, Jingjing Wang2DE, Hao Liu3FG, Zhongzhu Lv3AB*

DOI: 10.12659/MSM.912328

Med Sci Monit 2019; 25:460-465

Abstract

BACKGROUND: Ropivacaine is commonly used as an intercostal nerve block, but its effects on postoperative cognitive dysfunction (POCD) have not previously been investigated. This study aimed to examine the effects of the use of ropivacaine as an intercostal nerve block on early POCD, postoperative analgesia, and inflammation in patients following thoracotomy for esophageal cancer.

MATERIAL AND METHODS: One hundred patients with esophageal cancer undergoing thoracotomy were randomly divided into a group with intercostal nerve block (group A) (n=50) and a control group (group B) (n=50). The cognitive function score and visual analog scale (VAS) scores for pain were measured at one hour before surgery (T1), two hours after surgery (T2), 12 hours after surgery (T3), and 24 hours after surgery (T4). Blood samples were collected at each time point, and plasma levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), IL-10, and S100-β were measured using an enzyme-linked immunosorbent assay (ELISA). Cognitive function was determined using the Mini-Mental State Examination (MMSE) scale.

RESULTS: The VAS scores in group A were significantly lower compared with group B (p<0.05). In the T2, T3, and T4 time points, group A had significantly increased MMSE scores compared with group B (p<0.05). Compared with group B, the levels of IL-6 and TNF-a were significantly decreased in group A at T3 and T4 (p<0.05), while the levels of IL-10 were significantly increased (p<0.05) when compared with group A.

CONCLUSIONS: The use of the intercostal nerve block, ropivacaine, improved early PCOD in patients following thoracotomy for esophageal cancer.

Keywords: Analgesia, Intercostal Nerves, Thoracotomy, Anesthesia, Conduction, Anesthetics, Local, cognitive dysfunction, Esophageal Neoplasms, Interleukin-10, Interleukin-6, Nerve Block, Pain Measurement, Pain, Postoperative, Postoperative Complications, ropivacaine

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750