Initial management of esophageal anastomotic strictures after transhiatal esophagectomy for esophageal cancer with dilations up to 18-20 mm

Risk Factors for Benign Anastomotic Stenosis After Esophagectomy for Cancer

BACKGROUND

Benign stenosis frequently occurs after esophagectomy, causing dysphagia, eating problems, and diminished quality of life. This study aimed to identify risk factors for benign anastomotic stenosis after esophagectomy for cancer.

METHODS

This retrospective cohort study analyzed patients who underwent esophagectomy at Amsterdam UMC from 2012 until 2022. Intrathoracic and cervical anastomoses were examined separately. Benign anastomotic stenosis was defined as stenosis at the anastomosis causing dysphagia (Ogilvie score ≥2) and requiring at least one endoscopic dilation. Predictive factors were identified using logistic regression.

RESULTS

The study enrolled 902 patients: 605 with intrathoracic and 297 with cervical anastomosis. Of these cases, 91.1 % were a minimally invasive esophagectomy. Stenosis occurred in 18.4 % of the intrathoracic cases and 49.8 % of the cervical cases (p < 0.001). The patients required medians of 4 and 7 dilations, respectively (p = 0.001). The median time to stenosis was 99 days for the intrathor days for the cervical anastomoses (p = 0.001). Intrathoracic stenosis was independently associated with anastomotic leakage (odds ratio [OR], 2.034; 95 % confidence interval [CI], 1.116-3.708). For the patients without leakage, a 2 mm versus a 25 mm circular stapler reduced stenosis risk (OR, 0.486; 95 % CI, 0.294-0.803), whereas use of immunosuppressants (OR, 3.492; 95 % CI, 1.186-10.279]) and chronic pulmonary disease (OR, 2.717; 95 % CI, 1.293-5.707) increased it. For cervical anastomoses, hand-sewn end-to-side anastomosis was protective (OR, 0.454; 95 % CI, 0.234-0.879).

CONCLUSIONS

The key risk factors for intrathoracic benign anastomotic stenosis are anastomotic leakage, smaller circular stapler size, use of immunosuppressants, and chronic pulmonary disease. For cervical anastomoses, the hand-sewn end-to side technique is protective compared with the end-to-end technique, whereas use of immunosuppressants and chronic pulmonary disease increases the risk.

Endoscopic incisional therapy for benign anastomotic strictures after esophagectomy or gastrectomy: a systematic review and meta-analysis

BACKGROUND

Studies have evaluated the efficacy of endoscopic incisional therapy (EIT) for benign anastomotic strictures. We performed a systematic review and meta-analysis to evaluate stricture recurrence after EIT following esophagectomy or gastrectomy.

METHODS

A systematic search of databases was performed up to April 2nd, 2023, after selection of key search terms with the research team. Inclusion criteria included human participants undergoing EIT for a benign anastomotic stricture after esophagectomy or gastrectomy, age ≥ 18, and n ≥ 5. Our primary outcome was the incidence of stricture recurrence among patients treated with EIT compared to dilation. Our secondary outcome was the stricture-free duration after EIT and rate of adverse events. Meta-analysis was performed with RevMan 5.4.1 using a Mantel-Haenszel random-effects model. Publication bias was evaluated with funnel plots and the Egger test.

RESULTS

A total of 2550 unique preliminary studies underwent screening of abstracts and titles. This led to 33 studies which underwent full-text review and five studies met the inclusion criteria. Meta-analysis revealed reduced odds of overall stricture recurrence (OR 0.35, 95% CI 0.13-0.92, p = 0.03; I2 = 71%) and reduced odds of stricture recurrence among naïve strictures (OR 0.32, 95% CI 0.17-0.59, p = 0.0003; I2 = 0%) for patients undergoing EIT compared to dilation. There was no significant difference in the odds of stricture recurrence among recurrent strictures (OR 0.63, 95% CI 0.12-3.28, p = 0.58; I2 = 81%). Meta-analysis revealed a significant increase in the recurrence-free duration (MD 42.76, 95% CI 12.41-73.11, p = 0.006) among patients undergoing EIT compared to dilation.

CONCLUSION

Current data suggest EIT is associated with reduced odds of stricture recurrence among naïve anastomotic strictures. Large, prospective studies are needed to characterize the safety profile of EIT, address publication bias, and to explore multimodal therapies for refractory strictures.

Risk Factors of Benign Stricture of Anastomotic Stoma after Esophagectomy and Therapeutic Effect of Stent Implantation

With the increase in the number of patients and prolongation of their lives after esophagectomy for esophageal cancer, the quality of life after surgery has attracted more and more attention. Although anastomotic stenosis is a common complication, it seriously affects the quality of life and psychological state of patients or even threatens their lives. At present, the exact independent influencing factors of anastomotic stenosis after esophageal cancer surgery have not been determined, and relevant treatment options are still controversial. Here, we analyzed the independent risk factors leading to good postoperative anastomotic stenosis, in order to provide a basis for late prevention. At the same time, we deeply discussed the advantages and safety of stent implantation in the treatment of anastomotic stenosis.