Methods30of total57patients were randomly grouped as observational g roup receiving intubation of tenacious cored cannula into gastric canal and the rest27as the routine therapeutic group receiving indwelling catheter in routine way.

• 方法将57例患者按抽签法随机分成两组,插入韧质内芯留置胃管者30例为改良组,以常规方法留置胃管者27例为常规组。