Comparison of Two Foreign Body Retrieval Devices with Adjustable Loops in a Swine Model

Abstract

The purpose of the study was to compare two similar foreign body retrieval devices, the Texan (TX) and the Texan LONGhorn (TX-LG), in a swine model. Both devices feature a < or = 30-mm adjustable loop. Capture times and total procedure times for retrieving foreign bodies from the infrarenal aorta, inferior vena cava, and stomach were compared. All attempts with both devices (TX, n = 15; TX-LG, n = 14) were successful. Foreign bodies in the vasculature were captured quickly using both devices (mean +/- SD, 88 +/- 106 sec for TX vs 67 +/- 42 sec for TX-LG) with no significant difference between them. The TX-LG, however, allowed significantly better capture times than the TX in the stomach (p = 0.022), Overall, capture times for the TX-LG were significantly better than for the TX (p = 0.029). There was no significant difference between the total procedure times in any anatomic region. TX-LG performed significantly better than the TX in the stomach and therefore overall. The better torque control and maneuverability of TX-LG resulted in better performance in large anatomic spaces.