Vol 71, No 5 (2021)
Research paper (original)
Published online: 2021-08-20

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The surgical treatment of rectal cancer in Poland. The findings of a multi-center observational study by the Polish Society of Surgical Oncology (PSSO-01)

Michał Jankowski1, Andrzej Rutkowski2, Wojciech Zegarski1, Adam Majewski3, Marcin Zeman4, Marek Mądrecki5, Wojciech Woźny6, Wiesław Kruszewski78, Grzegorz Celban9, Józef Kładny10, Zbigniew Lorenc11, Bartosz Kapturkiewicz12, Marek Bębenek12, Mirosław Szura13, Wojciech M. Wysocki141516, Dawid Murawa1718, Wojciech Polkowski19, Stanisław Głuszek20, Józef Wróbel21, Tomasz Olesiński2
Nowotwory. Journal of Oncology 2021;71(5):282-289.


Introduction. PSSO-01, a Polish prospective multi-center project on rectal cancer, started in 2016 with participation on a voluntary basis. This study evaluates the early outcome of the surgical treatment of rectal cancer in Poland according to hospital volume.

Material and methods. The dataset derives from 17 clinical centers registered in the PSSO-01 study. From 2016 to 2020, the data of 1,607 patients were collected. Taking into account the number of patients enrolled in the study, the centers were divided into three categories: high volume, medium volume, and low volume. Nominal variables were compared between different categories of centers using the chi-square test. The STROBE guidelines were used to guarantee the reporting of this observational study.

Results. More patients with metastatic disease were operated on in the low volume centers (p = 0.020). Neoadjuvant treatment was used in 35%, 52%, and 66% of patients operated on in low, medium, and high volume centers respectively (p < 0.001). Laparoscopic resection in medium volume centers was performed more often than in other centers (p < 0.001). The total rate of postoperative complications related to high, medium, and low centers was 22%, 26%, 18% (p = 0.044). One year following surgery, a stoma was present in 63% of patients. A defunctioning stoma following anterior resection was reversed in only 55% of patients. Anastomotic leakage was the main reason for a non-reversal diverting stoma.

Conclusions. The representation of low volume centers in the PSSO-01 study was understated. However, the outcomes may show the actual situation of surgical treatment of rectal cancer in high and medium volume centers in Poland.

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