Toward uniform and controlled clinical pathways in cancer care: a qualitative description.

QUALITY ISSUE: The definition of clinical pathways (CPs) and their application are heterogeneous. Each center is used to choose whether to adopt this instrument or not and to variably conceive its features We consider CPs as the necessary description of the cancer patient journey and we emphasize their role as the user view of clinical processes rather than a local translation of guidelines. CHOICE OF SOLUTION: We proposed a unique CPs model for all the centers of our regional network, with the aim of making CPs accountable and comparable. We also established a central quality evaluation. IMPLEMENTATION: Through a multi-step process, the model was proposed to the 22 Regional centers. Landmark characteristics of the project were: the involvement of hospital administrations; reference to a unique set of guidelines; a peer-review and open evaluation. EVALUATION: Of the 374 expected CPs, 253 (68%) were received and evaluated. A median number of 131 items were the object of evaluation in each hub center and 77 in each spoke center. About 79.5% items were considered well described, 15.5% were absent and 5.0% partially described. The median percentage of fulfilled indicators was 85.6% in hub CPs and 82.2% in spoke CPs. Although, not all diseases were equally covered through the territory a high degree of homogeneity and a good quality of compilation were achieved. LESSONS LEARNED: The project was shown to be feasible and achieved its goal. We suggest this process as a functional way for building uniform cancer CPs.

Delineation of the larynx as organ at risk in radiotherapy: a contouring course within "Rete Oncologica Piemonte-Valle d'Aosta" network to reduce inter- and intraobserver variability.

AIMS: To evaluate the usefulness of a contouring course in reducing inter- and intraobserver variability in the definition of the larynx as organ at risk (OAR). METHODS: Within the "Rete Oncologica Piemonte-Valle d'Aosta" network, a contouring course focusing on larynx delineation was proposed. Twenty-six radiotherapist technicians (RTTs) experienced in delineating OARs were asked to contour larynx before and after the training. An expert radiation oncologist defined the reference volume for educational purpose. The contoured volumes obtained before and after the course were compared using descriptive statistics (mean value, standard deviation-SD, and coefficient of variation-COV) of volumes and maximum diameters. Conformity index (CI), dice coefficient (DC), and percentage of overlap were used to evaluate the spatial accuracy of the different volumes compared to the reference. Further analysis regarding the variation in the centre of mass (COM) displacement was performed. RESULTS: The mean volume was 40.4 cm3 before and 65.9 cm3 after the course, approaching the reference value. Mean anteroposterior, laterolateral, and craniocaudal diameters improved, getting each closer to the reference. Moreover, the COM moved approaching reference coordinates. Mean percentage of intersection and DC strongly increased after the course, rising from 57.76 to 93.83 % and from 0.68 to 0.89, respectively. CI enhanced from 0.06 to 0.31. CONCLUSIONS: This study shows an improvement in larynx definition after the contouring course with lower interobserver variability and major consistency compared to the reference volume. Other specific educational activities may further increase the quality of radiation therapy contouring in this setting.