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  • Title: A comparative study of 50% dextrose and normal saline solution on their ability to create submucosal fluid cushions for endoscopic resection of sessile rectosigmoid polyps.
    Author: Katsinelos P, Kountouras J, Paroutoglou G, Chatzimavroudis G, Zavos C, Pilpilidis I, Gelas G, Paikos D, Karakousis K.
    Journal: Gastrointest Endosc; 2008 Oct; 68(4):692-8. PubMed ID: 18514651.
    Abstract:
    BACKGROUND: EMR traditionally performed by using normal saline solution (NS) plus epinephrine (E) as a submucosal fluid cushion does not maintain the submucosal elevation for a prolonged time. It was hypothesized that 50% dextrose (D(50)) plus E as a hypertonic, inexpensive, and easily available solution might be an ideal alternative for producing and maintaining more-prolonged mucosal elevation. OBJECTIVE: To evaluate D(50)+E versus NS+E during an EMR of sessile rectosigmoid polyps (> 10 mm). DESIGN: A prospective, double-blind, randomized study that compared EMR by using either D(50)+E or NS+E submucosal fluid cushions. SETTING: Four tertiary endoscopic referral centers with 1370 polypectomies in 2006, performed by 5 experienced endoscopists. PATIENTS: Patients treated for sessile rectosigmoid polyps (> 10 mm). INTERVENTIONS: Polypectomy with D(50)+E or NS+E submucosal fluid cushions. MAIN OUTCOME MEASUREMENTS: The duration of submucosal elevation, volume of solution, number of required injections to maintain the elevation, and observations for complications. RESULTS: Ninety-two sessile rectosigmoid polyps were removed. Injected solution volumes and the number of injections to maintain submucosal elevation were lower in the D(50)+E group than in the NS+E group (P = .033 and P = .028, respectively). Submucosal elevation had a longer duration in the D(50)+E group (P = .043). This difference mainly included large (> or = 20 mm) and giant (> 40 mm) polyps. There were 6 and 1 cases of postpolypectomy syndrome in the D(50)+E and NS+E groups, respectively (P = .01). LIMITATIONS: May be limited by inexperienced endoscopist's lack of injection and polypectomy skills. CONCLUSIONS: D(50)+E is superior to NS+E for an EMR, particularly in large and giant sessile polyps, but the risk of thermal tissue injury should be considered.
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