Page 657 - Fluid, Electrolyte, and Acid-Base Disorders in Small Animal Practice
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644        SPECIAL THERAPY


            isoniazid, and vitamins all contained sorbitol. Although  • Both the continuous and intermittent methods of
            commonly added to improve the palatability of some     nasoenteric tube feeding can facilitate adequate nutri-
            medications,sorbitolisalsoknowntohaveanosmoticeffect   ent intake with minimal GI complications in critically
            insensitive individuals and should beconsidereda potential  ill dogs.
            cause of diarrhea in patients receiving enteral diets. 33  • Additional research is needed to determine optimal
               Technical complications include: feeding stopped for  diet formulations for different patient populations.
            diagnostic or therapeutic procedures, feeding stopped
            for owner visitation, feeding stopped for extended walks
            outside, equipment malfunction, syringe pump off,    REFERENCES
            syringe pump disconnected, or accidental rate change.
                                                                   1. Abood S, Buffington CA. Improved nasogastric intuba-
            Care should be taken when patients are receiving enteral
                                                                     tion technique for administration of nutritional support
            nutrition to minimize the time lost due to temporary     in dogs. J Am Vet Med Assoc 1991;199:577–9.
            discontinuation  of  enteral  feedings.  Mechanical    2. Abood S, Mauterer JV, McLoughlin MA, et al. Nutritional
            complications were evaluated at Michigan State Univer-   support of hospitalized patients. 2nd ed. Philadelphia: WB
            sity. Dogs fed continuously lost a median of 0.5 hours   Saunders Co; 1993.
                                                                   3. Abrams J. The nutrition of the dog. In: Boca Raton, Fla:
            of enteral nutrition, where dogs fed intermittently had
                                                                     CRC Press; 1977. p. 1–27.
            a median of 0 hours of EN lost due to technical        4. Altman E, Cutee AJ. Compatibility of enteral products
            complications. The 0.5 hours lost in the continuous      with commonly employed drug additives. Nutr Supp Serv
            group equates to 2% of the 24 hour PPND. This discrep-   1984;4:8–17.
            ancy accounts for the lower average PPND (approxi-     5. Anderson R. Water balance in the dog and cat. J Small
                                                                     Anim Pract 1982;23:588–98.
            mately 2%) of continuously fed dogs (98.4%) when       6. Beal M, Jutkowitz LA, Brown AJ. Development of a novel
            compared with the intermittently fed group (100%). 47    method for fluoroscopically-guided nasojejunal feeding
               Metabolic problems include rapid absorption of high-  tube placement in dogs. J Vet Emerg Crit Care
            carbohydrate solutions, which could result in hyperglyce-  2007;17(3):S1.
            mia; osmotic diuresis; and ultimately nonketotic,      7. Beal M, Mehler SJ, Staiger BA, et al. Technique for fluo-
                                                                     roscopic nasojejunal tube placement in dogs, In:
            hyperosmolar coma. This is referred to as the refeeding  Proceedings of the American College of Veterinary Inter-
            syndrome; 90  we do not routinely observe this complica-  nal MedicineCanada: Montreal, Quebec; 2009 June
            tion with enteral feedings. Metabolism of glucose also   3–6th.
            results in the production of CO 2 and metabolic water;  8. Beal M, Mehler SJ, Staiger BA, et al. Technique for percu-
            excess CO 2 production can further compromise patients   taneous radiologic gastrojejunostomy in the dog, In:
                                                                     Proceedings of the American College of Veterinary Inter-
            with pulmonary disease. If metabolic water is retained, it
                                                                     nal MedicineCanada: Montreal, Quebec; 2009 June
            can contribute to hyponatremia and edema. Most of        3–6th.
            these complications can be prevented by acclimatization  9. Belknap D, Davison U, Flournoy DJ. Microorganisms and
            of the patient to the feeding solution, slow rates of admin-  diarrhea in enterally fed intensive care unit patients.
            istration, and not overfeeding. Additional monitoring    J Parenter Enter Nutr 1990;14:622–8.
                                                                  10. Bone S, Mann FA, Backus RC, et al. Evaluation of Poly-
            and potential supplementation of electrolytes such as
                                                                     meric Diets delivered directly into the small intestine
            potassium, magnesium, calcium, and phosphate, may        through  surgically  placed  jejunostomy  tubes,  In:
            be required in critically ill patients. Urine or blood glu-  Proceedings of the American College of Veterinary Inter-
            cose concentrations should be monitored at regular       nal MedicineMontreal, Quebec; 2009 CAN; June 3-ttgh.
            intervals if hyperglycemia is suspected. Hyperglycemia  11. Bright R. Percutaneous tube gastrostomy. 2nd ed.
                                                                     Philadelphia: Lea and Febiger; 1990.
            can be managed by reducing nutrient flows or by giving
                                                                  12. Buffington C, Blaisdell J. Effect of citrate solutions on
            insulin, as discussed in Chapter 25. Until there is more  enteral formula clot formation. J Parenter Enter Nutr
            documentation (controlled studies) in the veterinary lit-  1989;13:14S.
            erature, evidence-based guidelines for enteral feeding in  13. Buffington C, Holloway C, Abood SA. Normal dogs.
            human adult patients 41,91  should be reviewed by        In: St Louis, MO: Elsevier; 2004. p. 24–5.
            practitioners and their staff interested in providing nutri-  14. Buffington C. Nutritional support of the hospitalized
                                                                     patient. Video Forum for Small Anim Clin 1989.
            tion support to veterinary patients.
                                                                  15. Butterworth CJ. The skeleton in the hospital closet. Nutr
                                                                     Today 1974;9:4–8.
            CONCLUSIONS                                           16. Campbell J, Jutkowitz LA, Santoro K, Hauptman J,
                                                                     Holahan ML, Brown AJ. Continuous versus intermittent
                                                                     delivery of nutrition via nasoenteric feeding tubes in criti-
            • Early enteral nutrition may be beneficial to the veteri-
                                                                     cally ill canine and feline patients. J Vet Emerg Crit Care
              nary patient, although further studies are needed in   2010;20:232–6.
              clinical populations.                               17. Carr C, Ling KD, Boulos P, et al. Randomised trial of
            • Early initiation of nutrition should be an integral part  safety and efficacy of immediate postoperative enteral
              of the patient’s treatment plan consideration to supply  feeding in patients undergoing gastrointestinal resection.
                                                                     BMJ 1996;312:869–71.
              enterocyte nutrition and protect the mucosal barrier.
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