Abstract
Background
Several cohort studies have reported that post-esophagectomy morbidities may worsen prognosis. Smoking cessation is an effective prophylactic measure for reducing post-esophagectomy morbidity; however, whether smoking cessation can contribute to the improvement of prognosis is unknown due to the absence of reliable databases covering the cessation period. This study aimed to elucidate whether sufficient preoperative smoking cessation can improve prognosis after esophageal cancer surgery by reducing post-esophagectomy morbidity.
Methods
This study included 544 consecutive patients who underwent curative McKeown and Ivor–Lewis esophagectomies for esophageal cancer between May 2011 and June 2021. Data on smoking status and cessation period were prospectively accumulated. Survival data were finally updated on 30 January 2022. Receiver operating characteristic curve analysis for the cut-off value of appropriate cessation period in reducing post-esophagectomy respiratory morbidity as well as analyses for the association of cessation period with short- and long-term outcomes were performed.
Results
Post-esophagectomy morbidity significantly diminished overall survival (OS) after esophagectomy (p = 0.0003). A short preoperative smoking cessation period of ≤ 2 months was associated with frequent post-esophagectomy morbidity of Clavien–Dindo classification ≥IIIb (p = 0.0059), pneumonia (p = 0.016), respiratory morbidity (p = 0.0057), and poor OS in clinical stages II and III (p = 0.0015). Moreover, it was an independent factor for poor OS (hazard ratio 1.85, 95% confidence interval 1.068–3.197; p = 0.028), along with body mass index <18.5 and R1 resection.
Conclusions
Sufficient preoperative smoking cessation > 2 months may be effective in improving not only short-term outcomes but also prognosis after esophagectomy for locally advanced esophageal cancer.
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Naoya Yoshida and Takatsugu Ishimoto are members of the department supported by Chugai Pharmaceutical Co., Ltd and Yakuruto Honsya Co., Ltd, but have no conflicts of interest regarding this research. Yoshifumi Baba is a member of the department supported by Taiho Pharmaceutical Co., Ltd, but has no conflicts of interest regarding this research. Hideo Baba, Kojiro Eto, Tomo Horinouchi, Kazuto Harada, Hiroshi Sawayama, Katsuhiro Ogawa, Yohei Nagai, Masaaki Iwatsuki, Shiro Iwagami, and Yuji Miyamoto have no conflicts of interest or financial ties to disclose.
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10434_2022_12433_MOESM2_ESM.pptx
Supplementary file 2. Fig. S1 Kaplan–Meier curves of overall survival between smokers and non-smokers in (a) all patients, (b) clinical stage IB, (c) clinical stage II and III, and (d) clinical stage IVA
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Supplementary file 3. Fig. S2 Kaplan–Meier curves of overall survival in clinical stage I in accordance with the appropriate duration of smoking cessation calculated by the Youden index
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Supplementary file 4. Fig. S3 Kaplan–Meier curves of overall survival in clinical stage IVa in accordance with the appropriate duration of smoking cessation calculated by the Youden index
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Yoshida, N., Eto, K., Horinouchi, T. et al. Preoperative Smoking Cessation and Prognosis After Curative Esophagectomy for Esophageal Cancer: A Cross-Sectional Study. Ann Surg Oncol 29, 8172–8180 (2022). https://doi.org/10.1245/s10434-022-12433-z
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DOI: https://doi.org/10.1245/s10434-022-12433-z