Myocardial ischemia in patients with mild-to-moderate aortic stenosis: Interaction with cardiac remodeling and adverse events.

Background: The association between aortic valve stenosis (AVS) and myocardial perfusion abnormalities has been incompletely characterized. We sought to assess the predictors of myocardial ischemia in patients with mild-to-moderate AVS, and its relationship with long-term prognosis.

Methods: Eighty-nine patients with mild-to-moderate AVS (peak velocity between 2.

Like a Rolling (Gall)Stone: Optimal Treatment of Gallstone Obstruction of the Sigmoid Colon.

Background: Sigmoid gallstone ileus is a rare complication of cholelithiasis, accounting for 1-4% of all cases of large-bowel obstruction. This is a highly morbid, and often fatal, condition due to its challenging diagnosis and late presentation.

Case Presentation: We report a case of a 90-year-old woman admitted to Emergency Department with abdominal pain and large-bowel obstruction due to a 6 cm gallstone lodged in a diverticulum of the proximal sigmoid colon as a consequence of a cholecysto-colonic fistula.

The Berne-Donovan technique for diverticulization of a severe lateral non-traumatic duodenal fistula.

Background: The duodenal «diverticulization» is a surgical technique described by Berne and colleagues in 1968 for the treatment of combined duodenal pancreatic injuries. It consisted of closure of the duodenal injury by suture and tube duodenostomy, gastric antrectomy with end-to-side isoperistaltic Billroth II gastrojejunostomy, and abdominal drainage. As evidenced from the literature in few reports, this technique has also been adopted for lateral duodenal lacerations in non traumatic conditions.

Changes in left ventricle myocardial volume during stress test using cadmium-zinc-telluride cardiac imaging: Implications in coronary artery disease.

Background: Cadmium-zinc-telluride (CZT) SPECT allows the estimation of left ventricle myocardial volume (LVMV). We tested the clinical relevance of rest-stress LVMV changes (Δ LVMV) in detecting coronary artery disease (CAD, coronary stenosis > 70%), using CZT-SPECT.

Methods: We prospectively enrolled 512 consecutive patients with known or suspected CAD (mean age: 70.

Head-to-head comparison of a CZT-based all-purpose SPECT camera and a dedicated CZT cardiac device for myocardial perfusion and functional analysis.

Purpose: To compare the outputs of a novel all-purpose SPECT camera equipped with CZT detectors (Discovery NM/CT 670) with the state-of-the-art represented by a dedicated CZT (Alcyone, Discovery 530c) cardiac camera in patients submitted to myocardial perfusion imaging (MPI).

Methods: We included 19 patients that underwent sequential low-dose Tc-tetrofosmin (148-185 MBq during stress and 296-370 MBq at rest) MPI with Alcyone and Discovery 670 cameras. Quantitative (% tracer's uptake) and semi-quantitative analyses of perfusion data were performed for each scan.