Abstract
Background
The purpose of this study was to clarify the efficacy and safety of transanal minimally invasive surgery (TAMIS) for total pelvic exenteration (TPE) in advanced primary and recurrent pelvic malignancies.
Methods
Using a prospectively collected database, we retrospectively analyzed the clinical, surgical, and pathological outcomes of TAMIS for TPE. Surgery was performed between September 2019 and April 2023. The median follow-up period was 22 months (2–45 months).
Results
Fifteen consecutive patients were included in this analysis M:F = 14:1 and median (range) age was 63 (36–74). Their diagnoses were as follows: primary rectal cancer (n = 5; 33%), recurrent rectal cancer (n = 4; 27%), primary anorectal cancer (n = 5; 33%), and gastrointestinal stromal tumor (n = 1; 7%). Bladder-sparing TPE was selected for two patients (13%). In nine of 15 patients (60%) the anal sphincter could be successfully preserved, five patients (33%) required combined resection of the internal iliac vessels, and two (13%) required rectus muscle flap reconstruction. The median operative time was 723 min (561–1082), and the median intraoperative blood loss was 195 ml (30–1520). The Clavien–Dindo classifications of the postoperative complications were as follows: grade 0–2 (n = 11; 73%); 3a (n = 3; 20%); 3b (n = 1; 7%); and ≥ 4 (n = 0; 0%). No cases of conversion to laparotomy or mortality were observed. The pathological results demonstrated that R0 was achieved in 14 patients (93%).
Conclusions
The short-term outcomes of this initial experience proved that this novel approach is feasible for TPE, with low blood loss, acceptable postoperative complications, and a satisfactory R0 resection rate.
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Data availability
The datasets generated and/or analyzed during the current study available from the corresponding author on reasonable request.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by KI, MO, AI, TM, JS, and KK. The first draft of the manuscript was written by NB and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Ethical approval was waived by the local Ethics Committee of Hyogo Medical University (Approval number 2683) in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
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Beppu, N., Ito, K., Otani, M. et al. Feasibility of transanal minimally invasive surgery for total pelvic exenteration for advanced primary and recurrent pelvic malignancies. Tech Coloproctol 27, 1367–1375 (2023). https://doi.org/10.1007/s10151-023-02869-0
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DOI: https://doi.org/10.1007/s10151-023-02869-0