Effects of Intercostal Nerve Cryoablation on Pain Control and Pulmonary Recovery after Open Aortic Repair via Left Thoracotomy

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PURPOSE: The aim of this study was to evaluate the impact of intercostal nerve cryoablation on postoperative pain, opioid usage, and lung expansion after open aortic repair via left thoracotomy. METHODS: This retrospective study included 62 patients who underwent aortic repair via left thoracotomy between 2017 and 2023. Patients were divided into cryoablation (n = 32) and non-cryoablation (n = 30) groups. Pain was assessed using the Numerical Rating Scale (NRS), and lung volume was measured using computed tomography 1 week postoperatively. RESULTS: The cryoablation group showed significantly lower mean NRS scores (1.7 vs. 2.4, p <0.01) and lower opioid consumption (6.2% vs. 56.6%, p <0.01). The left lung volume ratio was significantly higher in the cryoablation group (72.3% vs. 62.4%, p = 0.05). CONCLUSIONS: Intercostal nerve cryoablation effectively reduces postoperative pain and opioid consumption and enhances pulmonary expansion after left thoracotomy. This technique may offer a favorable analgesic option in thoracic aortic surgery.

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