Original articleGeneral thoracicCausal Model of Survival After Pulmonary Metastasectomy of Colorectal Cancer: A Nationwide Prospective Registry
Section snippets
The GECMP-CCR
The Spanish Group, founded in January 2008, consists of 35 Departments of Thoracic Surgery, 32 of which actively participated in the inclusion of patients. The Research and Ethics Committees of the participating centers approved the registry.
All of the data were prospectively registered from all patients who had undergone a first colorectal pulmonary metastasectomy between March 1, 2008, and February 28, 2010. The follow-up period lasted until February 28, 2013. The criteria that were
Results
During the inclusion period, 543 patients were registered. The clinical characteristics and demographics of the cohort have been previously published 3, 4. For the analysis of the current study, 21 patients (4%) were eventually excluded because they did not comply with either of the two aforementioned inclusion criteria.
From the remaining 522 patients, several were subsequently excluded from the survival analysis: 2 patients (0.38%) died postoperatively, and no follow-up data were registered
Comment
During the last 3 decades, analyzing the clinical and pathologic prognostic factors of patients who have undergone a pulmonary metastasectomy has been the norm in literature. However, rather frequently, the results obtained can be contradictory and, at the very least, unconfirmed by other researchers [2]. A number of these inconsistencies have been dealt with previously by other authors [6].
As a previous step to the construction of our causal model of survival, we performed a bivariate analysis
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