Abstract
Background
The nonoptic esophagoprobe has been reported to be comparable to the standard echoendoscope in esophageal cancer staging, with a superior advantage of traversing more stenotic tumors because of its smaller diameter. The aim of this study was to see whether its use in a general population of esophageal cancer patients confers any significant clinical benefit.
Methods
Five hundred seventy-seven consecutive patients referred for initial locoregional staging of esophageal cancer were analyzed retrospectively. Comparisons were made between the standard echoendoscope and the esophagoprobe.
Results
Complete staging (95.2% vs 77.5%; p < 0.001) was significantly higher in the esophagoprobe group compared with that of the standard echoendoscope group (315 and 262 patients, respectively). In 146 patients with histopathologic verification without prior chemotherapy or radiotherapy, the esophagoprobe was comparable in T-staging accuracy to the standard echoendoscope in those with traversable tumors (89.2% vs. 82.8%; p = 0.213). However, the presence of a nontraversable stricture significantly decreased standard echoendoscope T-staging accuracy compared with a traversable stricture (33.3% vs. 82.8%, respectively; p < 0.001). The esophagoprobe also picked more advanced tumors and distal nodes.
Conclusions
The esophagoprobe is more accurate than the standard echoendoscope in the T staging of esophageal cancer because of its higher likelihood of traversing tumor stenosis. It can potentially reduce the necessity for dilation in stenotic tumors by four to five times. We propose using the esophagoprobe as the first choice for radial endoscopic ultrasound staging of esophageal cancer.
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Vu, C., Tsang, S., Doig, L. et al. The preferred choice for radial endosonographic staging of esophageal cancer: standard echoendoscope or nonoptic esophagoprobe?. Surg Endosc 21, 1617–1622 (2007). https://doi.org/10.1007/s00464-007-9206-z
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DOI: https://doi.org/10.1007/s00464-007-9206-z