The “Pieve di Santa Maria” in Arezzo (Italy). From the Laser Scanner Survey to the Knowledge of the Architectural Structure

The parish church of “Santa Maria” is considered one of the most important medieval buildings of Arezzo Although the church is attested from 11th century, it is between the 13th and 14th centuries that reached its current consistency, characterized by the particular façade with small columns on several levels and an imposing bell tower. Later, from the 16th to the 18th century, the church underwent profound transformations, that were almost completely erased by extensive restoration works in the second half of the 19th century. The architectural survey of the parish church of “Santa Maria” was carried out with a phase-shift laser scanner and a digital reflex camera (Z+F 5006h). 189 scans were performed for generating the 3D model of the church: 180 of them with high density and normal quality, lasting 5-6 minutes; the remaining ones with super high density and high quality, lasting 13-14 minutes. Vectorial drawings of plans and sections were then created from the 3D model. Thanks to laser scanner survay of the chuch, it was possible to highlight the singularity of the structure of the basilical body and the transept. The tilt of walls and columns, the variations in the thickness of the walls, the considerable deformations of some arches, the cracks and textures of the wall facing were thus shown. The information obtained attested an architectural structure created by complex construction events that over time have affected this building. The cnstructive singularities involve the medieval genesis of the building, the transformations during the following centuries and the following restoration works. These composite features are specific and common to every ancient building. This peculiar epistemological condition eschews from simplifications and requires deep and complex studies closely linked to the problems of conservation of the structures

Diverting loopileostomy after restorative proctocolectomy: predictors of poor outcome and badpoor of life.

AIM: Diverting loop ileostomy is used to minimize the impact of anastomotic complication after restorative proctocolectomy (RPC). However, the ileostomy itself may have complications and therefore affect quality of life (QOL). The aim of this study was to analyse the predictors of complications of the ileostomy formation and closure and of the QOL of these patients. METHOD: Forty-four consecutive patients who underwent RPC were enrolled. Records of the ileostomy follow-up were retrieved from a prospectively collected database and QOL was assessed with the Stoma-QOL questionnaire. Ileostomy site coordinates were measured. Univariate and multivariate analysis were performed. RESULTS: In this series, three patients experienced peristomal herniae, two ileostomy stenosis, seven ileostomy retraction and fourteen peristomal dermatitis. Emergency surgery was the only predictor of parastomal hernia (P = 0.017). Stenosis correlated with the distance from the umbilicus (tau = 0.24, P = 0.021). Use of standard rod and retraction were independent predictors of peristomal dermatitis (P = 0.049 and P = 0.001). Stoma-QOL was directly correlated to the age of the patients and to the occurrence of parastomal hernia (P = 0.001 and P = 0.021, respectively). After stoma closure, two patients reported wound sepsis and seven suffered obstructive episodes. CONCLUSION: The predictors of negative outcome after construction of a diverting loop ileostomy after RPC were urgent surgery, use of standard rod, the distance of the stoma site from the umbilicus, parastomal herniae and the older age of patients