Lown D
University of Michigan Medical Center, Ann Arbor.
J Burn Care Rehabil. 1991 Jul-Aug;12(4):371-6.
The University of Michigan Burn Center uses a protocol to standardize the assessment, initiation, and monitoring of nutritional support for patients with burns of greater than 30% total body surface area (TBSA). Six patients with 20% to 80% TBSA burns were followed for 3 weeks to determine the effect of the protocol on the assessment, initiation, monitoring, and adequacy of nutritional support. The protocol calls for resting energy expenditure (REE) measurement within 24 hours of injury, to be repeated 3 times per week, for assessment of caloric requirements. Patients experienced an average delay before first REE measurement of 3 days after burn injury because measurements were unavailable on weekends and surgical days. REE measurements were used to determine caloric requirements and to tailor nutritional support to fluctuating metabolic needs. In four of the six patients a Dobhoff feeding tube (Biosearch Medical Products, Inc., Somerville, N.J.) was placed in the small bowel and enteral nutrition was initiated within 24 hours of admission, as outlined in the protocol. Two patients received concurrent parenteral nutrition because of difficulty in placing the Dobhoff feeding tube when fluoroscopy was not available. The three patients receiving nutrition solely through enteral feeding had achieved 100% of their caloric requirements by day 2, 4, and greater than 7 days after injury, respectively. Overall, the six patients received enterally an average of 75% of their caloric requirements. The major reason for inadequate enteral support was interruption of tube feedings because of tube dislodgment or multiple surgical procedures. The protocol used weekly measurements of total iron-binding capacity and prealbumin level s parameters of nutritional support.(ABSTRACT TRUNCATED AT 250 WORDS)
密歇根大学烧伤中心采用一种方案来规范对烧伤面积超过全身表面积(TBSA)30%的患者进行营养支持的评估、启动和监测。对6名TBSA烧伤面积为20%至80%的患者进行了为期3周的跟踪,以确定该方案对营养支持的评估、启动、监测及充足性的影响。该方案要求在受伤后24小时内测量静息能量消耗(REE),每周重复3次,以评估热量需求。患者在烧伤后首次REE测量前平均延迟3天,原因是周末和手术日无法进行测量。REE测量用于确定热量需求,并根据波动的代谢需求调整营养支持。按照方案概述,6名患者中有4名在小肠置入了多夫喂食管(Biosearch Medical Products, Inc., 新泽西州萨默维尔),并在入院后24小时内开始肠内营养。由于在无法进行荧光镜检查时难以置入多夫喂食管,另外2名患者同时接受了肠外营养。仅通过肠内喂养接受营养的3名患者在受伤后第2天、第4天和超过7天分别达到了100%的热量需求。总体而言,这6名患者通过肠内途径平均获得了75%的热量需求。肠内支持不足的主要原因是由于管道移位或多次外科手术导致管饲中断。该方案每周测量总铁结合力和前白蛋白水平——营养支持的参数。(摘要截选至250词)