静脉营养的临床应用.ppt
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1、靜脈營養的臨床應用靜脈營養的臨床應用 Parenteral NutritionParenteral Nutrition 營養評估與營養需求營養評估與營養需求 靜脈營養支持注意要點靜脈營養支持注意要點 靜脈營養的適應症靜脈營養的適應症v 全靜脈營養全靜脈營養TPNTPNv 周邊靜脈營養周邊靜脈營養PPNPPN 癌症與營養癌症與營養 龐振宜龐振宜 藥師藥師Clinical Decision Algorithm營養評估營養評估消化道功能消化道功能YesNo腸道營養腸道營養胃腸功能胃腸功能胃腸功能胃腸功能靜脈營養靜脈營養靜脈營養靜脈營養短期短期長期或須限水時長期或須限水時Peripheral PNPe
2、ripheral PNCentral PNCentral PN胃腸功能恢復胃腸功能恢復胃腸功能恢復胃腸功能恢復標準配方標準配方特殊配方特殊配方(Obstruction,peritonitis,intractable vomiting,acute pancreatitis,short-bowel syndrome,ileus)短期短期 Nasogastric Nasoduodenal Nasojejunal長期長期 Gastrostomy JejunostomyNutrient ToleranceAdequateProgress toOral FeedingsInadequatePN Suppl
3、ementationAdequateProgress to MoreComplex Diet andOral FeedingsAs ToleratedProgress to Total Enteral FeedingsNormalCompromisedNoYesDecision to Initiate Specialized Nutrition SupportRef:JPEN 17(Suppl 4):):7 SA,1993靜脈營養靜脈營養 建議攝取量建議攝取量Critically Ill Critically Ill(Stress)(Stress)StableFormula Formula g
4、/Lg/L (葡萄糖葡萄糖葡萄糖葡萄糖-A.A.-Fat)-A.A.-Fat)150-50-30150/200-40-30蛋白質蛋白質蛋白質蛋白質g/kg/d1-1.50.8 1.0糖類糖類糖類糖類mg/kg/min2-3.54-5脂肪脂肪脂肪脂肪g/kg/d11-2總熱量總熱量總熱量總熱量kcal/kg/d25 3030-35水分水分水分水分mL/kg/dMin.needed30-40ASPENnutritionsupportpracticemanual9-2,1998nMaintenance levels of electrolytesnStandard doses of multivit
5、amins and trace elementsProteinRequirements(for Adult Patients)1.1525ofTotalCalories2.Non-proteinCalorietoNitrogenRatio 80-100kcal:1/gm.NSevereStress 150-200kcal:1/gm.NModerateStress3.Nutritional vs.Metabolic Support 22ndClinicalCongress,ASPEN 1998Glucose RequirementnInitial TPN:100-150 gm(or 200gm)
6、nCan be increased by 50-75 gm/d (blood glucose levels are stable but less than 200 mg/dl)n the maximum glucose infusion rate be4 mg/kg/min(22-25Kcal/kg/day)Ref:1.TheASPENNutritionSupportPracticeManual.19982.ContemporaryNutritionSupportPractice.19983.ClinicalNutritionParenteralNutrition3Edition;2001F
7、at Requirementsn Maximum capacity:1.0-2.0 gm/kg/dayn Critically ill the maximum recommended infusion rate:1.0 gm/kg/dayn 10-25of total caloriesn Run fat initially at 1 ml/min 15-30 minn 2-4of total calories must be from EFA22ndClinicalCongress,ASPEN 1998 ElectrolytesRequirements for Adult Patients1.
8、Sodium 30 55 mEq/liter2.Potassium6090mEq/day3.Chloride 30 55 mEq/liter4.Calcium612mEq/day5.Magnesium1620mEq/day6.Acetate4570mEq/day7.Phosphorus1828mM/dayRef:a.MaxwellKleeman,sClinicalDisordersofFluidandElectrolyteMetabolism,5th,1994.b.AllinI.Arieff,M.D.Fluid,Electrolyte,andAcid-BaseDisorders.2ndEd19
9、95.VitaminsVitaminsAdult RDA Adult RDA in USAin USAAMA AMA RecommendedRecommendedRecommendatioRecommendation nFor the Critically For the Critically IllIllVitamin AVitamin A(IUIU)Vitamin DVitamin D(IUIU)4000-500040033002002500 10000400Vitamin EVitamin E(IUIU)Vitamin CVitamin C(mgmg)12-154510.0100.040
10、01000Folic acidFolic acid(mcgmcg)NiacinNiacin(mgmg)40012-20400.040.02000200Vitamin B2Vitamin B2(mgmg)Vitamin B1Vitamin B1(mgmg)1.1 1.81.0 1.53.63.01010Vitamin B6Vitamin B6(mgmg)Vitamin B12Vitamin B12(mcgmcg)1.6 2.034.05.02020 mgPantothenicPantothenic acidacid(mgmg)BiotinBiotin(mcmcg g)5 10150-30015.
11、060.01005 mgVitamin KVitamin K(mgmg)1.1 10 mg/wk2.Antibiotics 10 mg/3-4daysVitamin Formulation For Children Aged 11 Years,Older and AdultsFor Children Aged 11 Years,Older and AdultsEssential Trace ElementsAMA/NAG Suggested Daily IV IntakeAMA/NAG Suggested Daily IV IntakeElementStableAcute CatabolicG
12、I LossesZn2.5 4.0 mgAdditional2 mgAdd 12.2 mg/L small Bowel fluid lost;17.1 mg/kg of stool or ileostomy outputCu0.5 1.5 mg-Cr10 15 mcg-20 mcgMn1.150.8 mg-Metabolic Complications of PNnSteatosisnCholestasis,Gallbladder Stasis,and CholelithiasisnGastrointestinal AtrophynGastric Hypersecretion and Hype
13、racidityMacronutrientrelatedComplicationsOverfeedingRefeedingsyndromeMetabolic Complications of PN Steatosisn Within 1-2 weeks after initiation of PNnElevations of Serum aminotransferases,alkaline phosphatase and bilirubinnFatty infiltration of liver cellsn Continuous glucose and/or excessive calori
14、e loadsnResolves in 10-15 daysMetabolic Complications of PNCholestasis,Gallbladder Stasis,and CholelithiasisnMay occur 2-6 wks after initiation PNnProgressive increase total bilirubin and serum alkaline phosphatasenminimize the risknCyclic PNnRestrictin of carbohydrate,nAvoidance of overfeeding nEar
15、ly enteral stimulation Metabolic Complications of PNGastrointestinal AtrophynLack of enteral stimulation cause nvillus hypoplasianColonic mucosal atropynDecrease gastric functionnImpaired GI immunitynBacterial overgrowthnBacterial translocationnInitiate enteral feedings as soon as possibleMetabolic
16、Complications of PNGastric Hypersecretion and HyperaciditynGastric secretions directly related to the amount of small bowel resectednPeptic ulcerations and hemorrhagic gastritisnHistamine H2 receptor antagonists are used to decrease gastric outputnAdded directly to the PN solution適當靜脈營養支持注意要點適當靜脈營養支
17、持注意要點v 預防高血糖症預防高血糖症 血糖的穩定血糖的穩定v 電解質的平衡電解質的平衡 鉀鉀、鎂、磷、鎂、磷 的監測的監測v 酸鹼平衡酸鹼平衡Nutrition Support Overfeeding Respiratory AcidosisParenteral Nutrition Acidosis Metabolic Acidosisv 避免靜脈營養停止時的低血糖症避免靜脈營養停止時的低血糖症J.Nutrition 1999:129.290S-294SSystemic Inflammatory Response Syndrome(SIRS)Current Opinion in Clinic
18、al Nutrition and Metabolic Care 1999,2:69-78n n抑制抑制抑制抑制c centralentral Insulin action Insulin actionn nIncrease Increase gluconeogenesisgluconeogenesisn nPeripheral insulin Peripheral insulin resistanceresistancen nReduce uptake of glucoseReduce uptake of glucosen nSignificant hyperglycemiaSignifica
19、nt hyperglycemiaOPOP 246810 12 14 16 18 20Postoperative DayRelative insulin sensitivity(%)10080604020胰島素於玻璃瓶胰島素於玻璃瓶PVC及靜脈管的吸附作用及靜脈管的吸附作用Anesthesiology 40:4,400-404,1974RL GLASSRL PVCD5RL GLASSD5RL PVC0 05 5101015152020MINUTESMINUTES20203030404050506060%INSULIN LOSSINSULIN LOSSn Hyperglycemia a.Hyper
20、osmolar state b.Osmotic diuresis c.Dehydration d.Immunosuppressionn Hepatic steatosisn Ventilatory alterationsn Increased resting energy expenditureRef:1.NutritionSupportTheoryandTherapeutics1stEd,P471;19972.TheMetabolicHazardsofOverfeedingCriticallyIllPatients,ASPEN,1997.The Potential Hazards of Ov
21、erfeedingGlucoseGlucoseThe Potential Hazards of OverfeedingLipidLipidnTG 250mg/dl 4 hrs after lipid infusion for piggybacked lipids and 400mg/dl for continuous lipid infusion vv ImmunosuppressionImmunosuppression (RES BlockadeRES Blockade)vv Increased prostaglandin production Increased prostaglandin
22、 productionvv Hypercholesterolemia Hypercholesterolemiavv HyperlipidemiaHyperlipidemiavv Impaired liver function Impaired liver function vv Ventilatory Ventilatory alterationsalterationsn nReducing the dose and/or lengthening the infusion timeRef:1.TheMetabolicHazardsofOverfeedingCriticallyIllPatien
23、ts,ASPEN,1997.The Potential Hazards of OverfeedingAmino AcidAmino Acidn Ureagenesisn Hyperchloremic acidosisn Ventilatory alterationsn Increased resting energy expenditure1.NutritionSupportTheoryandTherapeutics1stEd,P471;19972.TheMetabolicHazardsofOverfeedingCriticallyIllPatients,ASPEN,1997.Metaboli
24、c Complications and TreatmentHyperglycemian1.Slow infusion raten2.Give insulin 0.1 U of insulin/g of dextrose/litern3.Increase fat emulsion therapyRefeeding SyndromenCardiac insuficiency peripheral edema hyertensionnExcess glucoseHyperglycemia HypokalemiaHypophosphatemiahypomagnesemiaRef:Nutritionin
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