BMC surgery · 2026
Circumferential resection margin and early recurrence after neoadjuvant-treated hybrid ivor lewis esophagectomy: a single-center cohort study.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Rehman Muhammad Hammad Ur, Asad Mariam, Munawar Mehrub, Abid Haider, Khanzada Zubair Shabbir
Аннотация
BACKGROUND: The prognostic value of circumferential resection margin (CRM) width after neoadjuvant-treated esophagectomy remains uncertain.
OBJECTIVE: To assess whether CRM distance predicts early (12-month) locoregional recurrence (LRR) following hybrid Ivor-Lewis esophagectomy.
DESIGN/SETTING: Retrospective observational cohort at a tertiary cancer center, April 2023-October 2024.
PARTICIPANTS: Consecutive adults who underwent two-stage (hybrid) esophagectomy for malignancy; emergencies and abandoned resections excluded.
EXPOSURE: Pathologic CRM measured in millimeters, analyzed continuously and by RCPath thresholds (≤ 1 mm vs. > 1 mm).
MAIN OUTCOMES: Primary-12-month locoregional recurrence (LRR). Secondary-any recurrence and recurrence-free survival (RFS).
RESULTS: Sixty-three resections were analyzed. CRM was measurable in 45 (71.4%). Median CRM was 2.0 mm (IQR 1.0-3.0). Six patients (9.5%) developed recurrence within 12 months-five locoregional and one distant. One of twenty-nine pathological complete responders (pCR, 3.4%) recurred. Univariable analysis did not demonstrate a significant association between CRM distance and early recurrence. Kaplan-Meier analysis showed no statistically significant difference in recurrence-free survival between CRM categories.
CONCLUSIONS: Early recurrence occurred in 9.5% of patients, predominantly locoregional. CRM distance, whether analyzed continuously or using RCPath thresholds, was not associated with early recurrence. These findings suggest that, within this single-center cohort, early relapse may reflect underlying tumor biology rather than marginal radial clearance, although results should be interpreted with caution given limited event numbers.
OBJECTIVE: To assess whether CRM distance predicts early (12-month) locoregional recurrence (LRR) following hybrid Ivor-Lewis esophagectomy.
DESIGN/SETTING: Retrospective observational cohort at a tertiary cancer center, April 2023-October 2024.
PARTICIPANTS: Consecutive adults who underwent two-stage (hybrid) esophagectomy for malignancy; emergencies and abandoned resections excluded.
EXPOSURE: Pathologic CRM measured in millimeters, analyzed continuously and by RCPath thresholds (≤ 1 mm vs. > 1 mm).
MAIN OUTCOMES: Primary-12-month locoregional recurrence (LRR). Secondary-any recurrence and recurrence-free survival (RFS).
RESULTS: Sixty-three resections were analyzed. CRM was measurable in 45 (71.4%). Median CRM was 2.0 mm (IQR 1.0-3.0). Six patients (9.5%) developed recurrence within 12 months-five locoregional and one distant. One of twenty-nine pathological complete responders (pCR, 3.4%) recurred. Univariable analysis did not demonstrate a significant association between CRM distance and early recurrence. Kaplan-Meier analysis showed no statistically significant difference in recurrence-free survival between CRM categories.
CONCLUSIONS: Early recurrence occurred in 9.5% of patients, predominantly locoregional. CRM distance, whether analyzed continuously or using RCPath thresholds, was not associated with early recurrence. These findings suggest that, within this single-center cohort, early relapse may reflect underlying tumor biology rather than marginal radial clearance, although results should be interpreted with caution given limited event numbers.