Levenson R, Turner W W, Dyson A, Zike L, Reisch J
Department of Surgery, Parkland Memorial Hospital, Dallas, Texas.
JPEN J Parenter Enteral Nutr. 1988 Mar-Apr;12(2):135-7. doi: 10.1177/0148607188012002135.
A widely held assumption is that postpyloric intubations occur more often with weighted than with unweighted nasally inserted feeding tubes. This randomized, prospective study compared the frequency of duodenal intubations using weighted and unweighted nasoenteric feeding tubes. One hundred sixteen patients had either weighted (61 patients) or unweighted (55 patients) 10F silicone elastomer feeding tubes inserted nasally 85 cm. Tubes were placed with wire stylets. Tube positions were verified radiographically within 4 hr after insertions. Radiographs were repeated daily for 3 days or until duodenal intubation occurred. Successful duodenal intubations were achieved in 35 patients (57%) with weighted feeding tubes and in 37 patients (67%) with unweighted feeding tubes. This difference was not significant. Weighted nasoenteric feeding tubes offer no advantage over unweighted tubes in achieving duodenal intubations.
一种广泛存在的假设是，与非加重型经鼻插入喂养管相比，加重型经鼻插入喂养管发生幽门后插管的情况更常见。这项随机前瞻性研究比较了使用加重型和非加重型鼻肠喂养管进行十二指肠插管的频率。116例患者经鼻插入85厘米长的10F硅橡胶弹性体喂养管，其中61例使用加重型，55例使用非加重型。插管时使用导丝。插管后4小时内通过X线片确认管的位置。连续3天每天重复进行X线检查，或直至发生十二指肠插管。使用加重型喂养管的35例患者（57%）和使用非加重型喂养管的37例患者（67%）成功实现十二指肠插管。这种差异不显著。在实现十二指肠插管方面，加重型鼻肠喂养管并不比非加重型喂养管更具优势。
