The relationship between the treatment course and prognosis of oligometastasis after esophageal squamous cell carcinoma resection

• Published in: Surgery today (Tokyo, Japan) Japan), 2024-08, Vol.54 (8), p.927-934
• Main Authors: Matsumoto, Chihiro, Iwatsuki, Masaaki, Morinaga, Takeshi, Horinouchi, Tomo, Hara, Yoshihiro, Baba, Yoshifumi, Miyamoto, Yuji, Yoshida, Naoya, Baba, Hideo
• Format: Article
• Language: English
• Subjects: Medicine; Medicine & Public Health; Original Article; Surgery; Surgical Oncology
• ISSN: 0941-1291; 1436-2813; 1436-2813
• DOI: 10.1007/s00595-024-02803-3

Purpose The concept of oligometastasis, which represents limited metastatic disease, has recently gained interest, accompanied by a more detailed classification. This study aims to investigate the relationship between the treatment course and prognosis in patients with a recurrence of esophageal squamous cell carcinoma (ESCC) after curative esophagectomy. Methods 126 patients with ESCC recurrence after curative resection were enrolled in this study. Oligometastasis was defined as fewer than five recurrences in a single organ. Patients were classified as having oligometastatic recurrence (OLR) or polymetastatic recurrence (PLR). Patients were further classified into four subgroups according to lesion progression: persistent oligorecurrence (PER-OLR), converted polyrecurrence (CON-PLR), induced oligorecurrence (IND-OLR), and persistent polyrecurrence (PER-PLR). We analyzed the relationship between the recurrence patterns and prognosis according to the progression of oligometastatic lesions. Results OLR was identified in 58 (46%) of 126 patients with recurrence. Patients with OLR had a significantly better prognosis than those with PLR ( P