Abstract
The pediatric variable-stiffness colonoscope (PVSC) is used by many endoscopists to negotiate the colon that requires a flexible colonoscope; it has a smaller diameter, but may lead to excessive looping. A prototype colonoscope tapers from an adult width to a pediatric diameter at approximately 25 cm. The tapered colonoscope (TC), while retaining the flexibility of the PVSC, has the column strength of the adult colonoscope to help negotiate the proximal colon. Our hypothesis is that use of the TC in female patients would be associated with less looping than the PVSC during the procedure, fewer required maneuvers, and thus a quicker examination. Direct comparison through tandem colonoscopies. University endoscopy suite. Forty unselected female patients. Tandem colonoscopies with PVSC and TC. Time to the cecum and the ability to retroflex in the cecum. Compared with the PVSC, the TC had faster times to achieve cecal intubation (mean [standard deviation], 8.83+/-4.68 minutes versus 6.88+/-4.08 minutes; P=.013) and a higher rate of retroflexion in the cecum (31/40 patients vs 39/40 patients; P<.01). Use of the TC was associated with a decreased need for abdominal pressure (P<.001). The TC achieved faster cecal intubation rates and had a higher success of cecal retroflexion than a PVSC. This performance likely was because of diminished looping and thus a decreased need for maneuvers. The TC may be preferable to the PVSC for female patients.
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