BAR DISPLACEMENT COMPLICATION AFTER NUSS PROCEDURE FOR PECTUS EXCAVATUM

Vỹ Trần Thanh, Bằng Hồ Tất, Cường Lâm Thảo, Nga Lê Thị Thiên, Phương Đào Duy

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Abstract

Objective: This study aimed to determine the prevalence and associated factors of bar displacement following the Nuss procedure for pectus excavatum at University Medical Center Ho Chi Minh City. Methods: A retrospective case series was conducted on 524 patients who underwent Nuss procedure from March 2008 to May 2023. Collected variables included demographic data, clinical characteristics, Haller index, BMI, history of respiratory infections, and surgical details. Results: The prevalence of bar displacement was 2.67%. Two factors significantly associated with displacement were low BMI (<18.5) (p = 0.006) and prolonged history of respiratory infections (p = 0.038). Other factors such as age, sex, Haller index, and chest wall morphology showed no significant association. Conclusion: Bar displacement is a rare but important complication that can compromise treatment outcomes. Early identification of risk factors such as low BMI and chronic respiratory conditions may help improve prognosis and guide the selection of appropriate fixation strategies in the surgical management of pectus excavatum.

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References

1. Nguyễn Thế May, Đoàn Quốc Hưng. Lõm ngực bẩm sinh: cập nhật chẩn đoán và điều trị ngoại khoa. Tạp chí Phẫu thuật Tim mạch và Lồng ngực Việt Nam. 2020 11/05;22:54-62.
2. Sa YJ, Lee J, Jeong JY, et al. A clinical decision-making model for repeat surgical treatment of pectus Bar displacement: distance measurement after nuss procedure. J Cardiothorac Surg. 2016 Jan 19;11:16.
3. Alaca N, Yüksel M. Comparison of physical functions and psychosocial conditions between adolescents with pectus excavatum, pectus carinatum and healthy controls. Pediatr Surg Int. 2021 Jun;37(6):765-775.
4. Trần Thanh Vỹ, Nguyễn Lâm Vương, Vũ Hữu Vĩnh, et al. Đánh giá kết quả dài hạn sau sửa chữa dị tật lõm ngực ở trẻ em. Tạp chí Phẫu thuật Tim mạch và Lồng ngực Việt Nam. 2020 11/05;22:86-93.
5. Ghionzoli M, Ciuti G, Ricotti L, et al. Is a shorter bar an effective solution to avoid bar dislocation in a Nuss procedure? Ann Thorac Surg. 2014 Mar;97(3):1022-7.
6. Melhado C, Highet A, Mukherjee N, et al. Effect of medial stabilizer chest position on pectus bar dislocation. Pediatr Surg Int. 2024 Aug 18;40(1):232.
7. Park HJ, Kim KS, Lee S, et al. A Next-Generation Pectus Excavatum Repair Technique: New Devices Make a Difference. The Annals of Thoracic Surgery. 2015;99(2):455-461.