Hyperalimentation
Hyperalimentation
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发表时间:
1974
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通讯作者:
J. Kinney
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作者:
J. Kinney
The term hyperalimentation was introduced by Dudrick in the United States and has been commonly used to represent central venous administration of hypertonic solutions, usually made up of some combination of amino acid nitrogen and carbohydrate together with vitamins and minerals. Dr. Dudrick took advantage of earlier research with Dr. Jonathan Rhodes at the University of Pennsylvania which sought to avoid the complications of giving concentrated solutions in a peripheral vein. Because of the rising popularity of introducing a plastic catheter into the superior vena cava for monitoring central venous pressure, Dr. Dudrick took advantage of this route to administer hypertonic solutions for nutrition. The large blood flow and rapid dilution of the hypertonic solution in the superior vena cava prevented phlebitis in the wall of the blood vessel and allowed continuous slow administeration of nutrients in the hope that there would be the optimum chance for utilization. This composition was selected by Dr. Dudrick in the middle 1960’s as the result of not having a commercial fat preparation available for intravenous use in the United States. others suggests that these are utilized as well, if not slightly better, than the protein hydrolysades. However, the use of glucose as the main calorie source means that it is not possible to commercially prepare the mixtures of glucose and amino acids with a prolonged shelf life because of the browning reaction which spontaneously occurs in such mixtures. Therefore people using this source of nitrogen together with glucose have had to mix them shortly before use. Other carbohydrate solutions such as the sugar alcohols are used extensively in Europe but have not gained popularity in the United States. A carbohydrate such as Sorbitol@ does have the advantage of allowing the factory to mix it with amino acids under optimum conditions and not requiring mixing by the nurses or other staff shortly before use.