Sandro Mattioli

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PURPOSE To repropose the importance of videofluoroscopy in the study of esophageal motor disorders, comparing the radiologic and manometric results; the manometric results are considered the reference parameters. MATERIAL AND METHODS From 1996 to 1999, 76 patients (42 males and 34 females), were studied first using manometry and then videofluoroscopy. The(More)
Hypoxia is a pathological condition arising in living tissues when oxygen supply does not adequately cover the cellular metabolic demand. Detection of this phenomenon in tumors is of the utmost clinical relevance because tumor aggressiveness, metastatic spread, failure to achieve tumor control, increased rate of recurrence, and ultimate poor outcome are all(More)
BACKGROUND Conventional imaging techniques [computed tomography (CT), ultrasound, magnetic resonance] and somatostatin receptor scintigraphy are often insufficient to make a conclusive diagnosis of bronchial carcinoid (BC). PET is commonly used for the assessment of lung cancer but 18F-fluorodeoxyglucose, the most frequently used PET tracer, presents a low(More)
A method for outpatient 24-hr simultaneous recording of pH in the distal esophagus, fundus, and antrum was developed in order to detect acid, alkaline, alkalacid gastroesophageal reflux, and duodenogastric reflux and to study these phenomena in patients complaining of gastroesophageal reflux and dyspepsia related symptoms. Two hundred ninety-four studies(More)
OBJECTIVE Quality of outcome of the Heller-Dor operation is sometimes different between studies, likely because of technical reasons. We analyze the details of myotomy and fundoplication in relation to the results achieved over a 30-year single center's experience. METHODS From 1979-2008, a long esophagogastric myotomy and a partial anterior(More)
OBJECTIVE We performed a qualitative and quantitative analysis of the nitrinergic neurons in the esophageal and gastric component of the lower esophageal sphincter (LES) and gastric fundus of patients with primary achalasia. METHODS Four muscle strips were obtained from the esophagogastric junction (two from the esophageal and two from the gastric side of(More)
OBJECTIVE The lower esophageal sphincter (LES) resting tone originates from the tension of the muscular fibers of the gastro-esophageal (GE) junction. This study determined which of the muscular structures' of the GE junction are actually responsible and to what degree for the LES resting tone in achalasic patients. SUMMARY BACKGROUND DATA Controversy(More)
OBJECTIVE To define the frequency and predictors of short esophagus in a case series of patients undergoing antireflux surgery. METHOD An observational prospective study from September 10, 2004, to October 31, 2006, was performed at 8 centers. The distance between the esophagogastric junction as identified by intraoperative esophagoscopy and the apex of(More)
The prevalence and clinical presentation of reducible and irreducible hiatus hernia were investigated within a gastro-esophageal reflux disease patient population. Reflux symptoms and esophagitis data were collected on 791 patients. The barium swallow was used to assess the esophagogastric junction. Clinical and endoscopic findings were tested to predict(More)
The goal of our study was to investigate manometric balloon sensors of original conception in order to overcome the limitations of perfused and solid-state sensors in the assessment of the pharyngoesophageal motility abnormalities. A standard perfused probe for esophageal manometry was modified by applying fluid-filled floppy balloons 0.5-, 1-, and 2.5-cm(More)