000069 10.3205/000069 urn:nbn:de:0183-0000698 Review Article Chirurgie und Transplantation – Leitlinie Parenterale Ernährung, Kapitel 18 Weimann Weimann A. A

Dept. of General und Visceral Surgery, St. George's Hospital, Leipzig, Germany

author Ebener Ebener Ch. C

Dept. of General, Visceral and Children's Surgery, Heinrich-Heine-University of Dusseldorf, Germany

author Holland-Cunz Holland-Cunz S. S

Dept. of Paediatric Surgery, University of Tuebingen, Germany

author Jauch Jauch K. W. KW

Dept Surgery Grosshadern, University Hospital, Munich, Germany

author Hausser Hausser L. L

Dept. of General and Visceral Surgery, Augsburg, Germany

author Kemen Kemen M. M

Dept. Surgery, Lutheran Hospital Herne, Germany

author Kraehenbuehl Kraehenbuehl L. L

Dept. of Surgery, Canton Hospital Fribourg, Switzerland

author Kuse Kuse E. R. ER

Central Clinic for Anaesthetics, Operative Intensive Medicine and Pain Therapy, Hospital of Salzgitter, Germany

author Laengle Laengle F. F

Dept. General Surgery, University of Vienna, Austria

author Working group for developing the guidelines for parenteral nutrition of The German Association for Nutritional Medicine Working group for developing the guidelines for parenteral nutrition of The German Association for Nutritional Medicine author German Medical Science GMS Publishing House

Düsseldorf

610 surgery transplantation fast track surgery postoperative nutrition Operation Transplantation fast-track-Chirurgie postoperative Ernährung Special Issue 20090114 20091118 engl 1612-3174 7 GMS German Medical Science GMS Ger Med Sci 10 Die Indikationen für eine künstliche Ernährung sind auch in der Chirurgie die Prophylaxe und Behandlung von Katabolie und Mangelernährung. Generell sollte deshalb postoperativ die Nahrungszufuhr nicht unterbrochen werden. Ein oraler (z.B. nach Anastomosen an Kolon und Rektum, Nierentransplantation) bzw. enteraler Kostaufbau (z.B. nach Anastomosen am oberen Gastrointestinaltrakt, Lebertransplantation) wird binnen 24 h nach OP empfohlen. Zur Vermeidung einer erhöhten Letalität, besteht auch bei Patienten ohne Zeichen der Mangelernährung, die perioperativ voraussichtlich mehr als 7 Tage keine orale Nahrungszufuhr oder mehr als 14 Tage oral eine nicht bedarfsdeckende Kost (weniger als 60–80%) erhalten, die Indikation zu einer unverzüglichen postoperativen künstlichen Ernährung. Nur in Fällen einer absoluten Kontraindikation für eine enterale Ernährung wie bei einer chronischen Darmobstruktion mit relevanter Passagestörung, z.B. einer Peritonealkarzinose, besteht die Indikation zur totalen parenteralen Ernährung (TPE). Wenn der Energie- und Nährstoffbedarf durch orale und enterale Zufuhr allein nicht gedeckt werden kann, ist eine kombinierte enterale und parenterale Ernährung indiziert. Die Verschiebung einer Operation zur Durchführung einer gezielten Ernährungstherapie (enteral und parenteral) ist nur bei schwerer Mangelernährung angezeigt. Bei mangelernährten Patienten sollte die präoperative Ernährungstherapie möglichst prästationär durchgeführt werden, um das Risiko nosokomialer Infektionen zu senken. Prinzipiell gelten die Empfehlungen des frühzeitigen postoperativen Kostaufbaus auch für das Kindesalter. Zur Sicherung einer effektiven Ernährungstherapie sollten klinikintern standardisierte Schemata erstellt werden. In surgery, indications for artificial nutrition comprise prevention and treatment of catabolism and malnutrition. Thus in general, food intake should not be interrupted postoperatively and the re-establishing of oral (e.g. after anastomosis of the colon and rectum, kidney transplantation) or enteral food intake (e.g. after an anastomosis in the upper gastrointestinal tract, liver transplantation) is recommended within 24 h post surgery. To avoid increased mortality an indication for an immediate postoperatively artificial nutrition (enteral or parenteral nutrition (PN)) also exists in patients with no signs of malnutrition, but who will not receive oral food intake for more than 7 days perioperatively or whose oral food intake does not meet their needs (e.g. less than 60–80%) for more than 14 days. In cases of absolute contraindication for enteral nutrition, there is an indication for total PN (TPN) such as in chronic intestinal obstruction with a relevant passage obstruction e.g. a peritoneal carcinoma. If energy and nutrient requirements cannot be met by oral and enteral intake alone, a combination of enteral and parenteral nutrition is indicated. Delaying surgery for a systematic nutrition therapy (enteral and parenteral) is only indicated if severe malnutrition is present. Preoperative nutrition therapy should preferably be conducted prior to hospital admission to lower the risk of nosocomial infections. The recommendations of early postoperative re-establishing oral feeding, generally apply also to paediatric patients. Standardised operative procedures should be established in order to guarantee an effective nutrition therapy. Introduction In surgery, the importance of nutritional status for post-operative morbidity and mortality in various clinical conditions is demonstrated by both retrospective , , , , , and prospective , , , , , , , , , , , , , , , studies. The presence of malnutrition is often an expression of the underlying disease i.e. a tumour or chronic organ insufficiency , , , , , , , , , (cf. appropriate chapter). Malnutrition is particularly relevant for outcome after organ transplantation , , , , , , , , , . Nutritional status also has a significant influence on morbidity of older patients . Enhanced recovery after surgery (ERAS) is a prerequisite for the desirable reduction of length of hospital stay. This so-called “fast track” system has become a standard in post-operative management, especially after colon operations. The principles of the multimodal process are perioperative limited volume supply, adequate pain therapy (especially by means of epidural anaesthesia), and minimising the administration of opioids, antiemetics and peristaltics. The objective is the re-establishing of oral food intake and full mobilisation of the patient at the earliest possible time. In surgery, the indications for artificial nutrition are prevention and treatment of catabolism and malnutrition. This mainly affects the perioperative maintenance of nutritional state to prevent malnutrition. Criteria for the success of the “therapeutic” indication for PN are the so-called “outcome” parameters of morbidity, length of hospital stay and mortality, while taking into consideration economic implications. The improvement of nutritional status and quality of life are most important in the post-operative period , , , , , , , , , , , , . Postoperative re-establishing of food intake Generally, nutrient intake should not be interrupted post-operatively (A). The post-operative re-establishing of oral food intake should be adjusted according to the patient’s tolerance (C). The re-establishing of oral or enteral food intake is recommended within 24 h post surgery (A). Oral food intake can be reintroduced from the first postoperative day after an anastomosis of the colon and rectum (A). Enteral intake via a tube with the tip distal to the anastomosis site is recommended for the first few days after an anastomosis in the upper gastrointestinal tract (A). Commentary Early re-establishing of oral or enteral food intake lowers the risk of infection and reduces the length of the hospital stay (, , ) (Ia), (, ) (Ib), (IIa). Food intake can be reintroduced immediately after a cholecystectomy, because a latency period or oesophagogastric decompression is of no advantage (, ) (Ib). Early re-establishing of oral food intake, by drinking from the first post operative day, after an anastomosis of the colon and rectum does not result in an increased insufficiency rate or interruption in the healing process (, , ) (Ib), (Ia). The speed at which food is reintr</PlainText></TextGroup>oduced should be guided by the gastrointestinal tract function and the patient&#8217;s tolerance <TextLink reference="57"></TextLink> (Ia), (<TextLink reference="63"></TextLink>, <TextLink reference="64"></TextLink>, <TextLink reference="65"></TextLink>) (Ib), (<TextLink reference="66"></TextLink>, <TextLink reference="67"></TextLink>, <TextLink reference="68"></TextLink>) (IIa), (<TextLink reference="59"></TextLink>, <TextLink reference="69"></TextLink>) (IIb).</Pgraph> <Pgraph>No comparable data are available for patients with an upper gastrointestinal tract anastomosis e.g. after a gastrectomy or oesophageal resection. In these cases numerous controlled studies have shown the practicability of enteral nutrition via a tube distal to the anastomosis site <TextLink reference="70"></TextLink>, <TextLink reference="71"></TextLink>, <TextLink reference="72"></TextLink>, <TextLink reference="73"></TextLink>.</Pgraph> <Pgraph>In comparison to conventional laparotomies, laparoscopic colonic surgery improves the tolerance to early re-e<TextGroup><PlainText>stablis</PlainText></TextGroup>hing of oral food intake through faster establishment of peristalsis and intestinal passage <TextLink reference="74"></TextLink> (Ib), (<TextLink reference="68"></TextLink>, <TextLink reference="75"></TextLink>) (IIa).</Pgraph> </TextBlock> <TextBlock linked="yes" name="Perioperative (pre and postoperative) indications for artificial nutrition"> <MainHeadline>Perioperative (pre and postoperative) indications for artificial nutrition</MainHeadline> <SubHeadline>General</SubHeadline> <Pgraph> <UnorderedList> <ListItem level="1">Insufficient food intake for more than 14 days is associated with increased mortality (Ib). </ListItem> <ListItem level="1">Indications for artificial nutrition also exists in patients with no signs of malnutrition, but who will not receive oral food intake for more than 7 days perioperatively or whose oral food intake does not meet their needs (i.e. less than 60&#8211;80&#37;) for more than 14 days. In these cases it is recommended that enteral nutrition and, if required, also PN (B) is started immediately post-o<TextGroup><PlainText>perativel</PlainText></TextGroup>y. </ListItem> <ListItem level="1">Total PN (TPN) is indicated if there is an absolute contraindication for enteral nutrition, such as in chronic intestinal obstruction with a relevant passage obstruction e.g. a peritoneal carcinoma (A). </ListItem> <ListItem level="1">If the energy and nutrient requirements cannot be met by oral and enteral intake alone, a combination of enteral and parenteral nutrition is indicated (C).</ListItem> <ListItem level="1">Standardised operative procedures should be established to secure an effective nutrition therapy (C) (cf. Advice and examples for post-operative PN on general wards, below). </ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph>The prognostic influence of nutritional state on morbidity, mortality and length of hospital stay (LOS) is prospectively documented for surgical patients, particularly after organ transplantation <TextLink reference="1"></TextLink>, <TextLink reference="2"></TextLink>, <TextLink reference="3"></TextLink>, <TextLink reference="4"></TextLink>, <TextLink reference="5"></TextLink>, <TextLink reference="6"></TextLink>, <TextLink reference="7"></TextLink>, <TextLink reference="8"></TextLink>, <TextLink reference="9"></TextLink>, <TextLink reference="10"></TextLink>, <TextLink reference="11"></TextLink>, <TextLink reference="12"></TextLink>, <TextLink reference="13"></TextLink>, <TextLink reference="14"></TextLink>, <TextLink reference="15"></TextLink>, <TextLink reference="16"></TextLink>, <TextLink reference="17"></TextLink>, <TextLink reference="18"></TextLink>, <TextLink reference="19"></TextLink>, <TextLink reference="20"></TextLink>, <TextLink reference="21"></TextLink>, <TextLink reference="22"></TextLink>. Insufficient food intake over a period of more than 14 days is associated with increased mortality (Ib) <TextLink reference="76"></TextLink>.</Pgraph> <Pgraph>The current guidelines of the American Society for Parental and Enteral Nutrition (ASPEN) recommend post-o<TextGroup><PlainText>perativ</PlainText></TextGroup>e PN for patients who cannot meet their energy needs orally within 7&#8211;10 days <TextLink reference="77"></TextLink>.</Pgraph> <Pgraph>The effect of PN in comparison to oral&#47;enteral standard nutrition with regards to the prognosis of surgical patients has been discussed controversially <TextLink reference="72"></TextLink>, <TextLink reference="78"></TextLink>, <TextLink reference="79"></TextLink>, <TextLink reference="80"></TextLink>, <TextLink reference="81"></TextLink>, <TextLink reference="82"></TextLink>, <TextLink reference="83"></TextLink>, <TextLink reference="84"></TextLink>, <TextLink reference="85"></TextLink>, <TextLink reference="86"></TextLink>, <TextLink reference="87"></TextLink>, <TextLink reference="88"></TextLink>, <TextLink reference="89"></TextLink>, <TextLink reference="90"></TextLink>, <TextLink reference="91"></TextLink>, <TextLink reference="92"></TextLink>, <TextLink reference="93"></TextLink>, <TextLink reference="94"></TextLink>, <TextLink reference="95"></TextLink>, <TextLink reference="96"></TextLink>, <TextLink reference="97"></TextLink>, <TextLink reference="98"></TextLink>, (Table 1 <ImgLink imgNo="1" imgType="table"/>). Twenty-one randomised studies of patients with abdominal surgery, including patients after liver transplantation and trauma patients, are known to the expert group. In these studies (total) PN was compared with enteral nutrition, or with crystalloid solutions or with a normal hospital diet. </Pgraph> <Pgraph>Enteral and parenteral nutrition was compared in 15 studies, of which 6 showed studies significant benefits of enteral nutrition, mainly, a lower incidence of infectious complications, shorter length of stay, and lower costs (Ib). No significant difference, was found in 8 of the 15 studies, which led most authors to favour enteral nutrition because of its lower costs <TextLink reference="72"></TextLink>, <TextLink reference="92"></TextLink>, <TextLink reference="93"></TextLink>, <TextLink reference="95"></TextLink> (Ib).</Pgraph> <Pgraph>Several authors have pointed out the possible advantages of PN when there is a limited tolerance of enteral nutrition due to intestinal dysfunction especially in the early post-operative phase, which is associated with a lower energy intake <TextLink reference="78"></TextLink>. Strict attention, therefore, must be paid to the tolerance of enteral intake especially in patients with severe polytrauma <TextLink reference="88"></TextLink> (Ib). An adequate energy intake is better provided by PN when there is a limited gastrointestinal tolerance <TextLink reference="99"></TextLink> (IIa). </Pgraph> <Pgraph>A meta-analysis by Braunschweig et al. <TextLink reference="100"></TextLink> comparing enteral with parenteral nutrition incorporated the results of 27 studies with 1828 patients, (both surgical and non-surgical). It showed a significantly lower risk of infection with oral&#47;enteral nutrition. In malnourished patients, however, PN administration resulted in a significantly lower mortality with a tendency towards lower rates of infection. Heyland et al. <TextLink reference="101"></TextLink> incorporated 27 studies in a meta-analysis of PN in surgical patients. Clinical trials comparing enteral versus parenteral nutrition were excluded. An influence of PN on the mortality of surgical patients was not shown. A lower complication rate, especially in those with malnutrition, was observed in the parenterally nourished patients. </Pgraph> <Pgraph>These results lead to the recommendation not to enforce a dietary intake covering energy requirements during the first 7&#8211;10 post-operative days in well-nourished patients.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Combined enteral&#47;parenteral nutrition"> <MainHeadline>Combined enteral&#47;parenteral nutrition</MainHeadline> <SubHeadline>Indication </SubHeadline> <Pgraph> <UnorderedList> <ListItem level="1">Combined enteral&#47;parenteral nutrition should always be carried out when artificial nutrition is indicated and the energy requirements cannot be adequately met because of limited enteral tolerance. This is particularly applicable when the energy intake amounts to &#60;60&#37; of the calculated caloric requirements and a central venous catheter for PN is already available (C).</ListItem> <ListItem level="1">When insertion of a central venous catheter is required for the purpose of artificial nutrition, this indication must be critically considered in relation to the expected time period of PN. Combined nutrition is not necessary if expected time period of PN is &#60;4 days. If the exp<TextGroup><PlainText>ecte</PlainText></TextGroup>d PN period is expected to last between 4&#8211;7 days, nutrition can be hypocaloric with 2 g carbohydrates and 1 g amino acids&#47;kg body weight administered via a peripheral catheter, and if it is likely to last more than 7&#8211;10 days, it is recommended that a central venous catheter should be inserted (C). </ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph>Combined enteral&#47;parenteral nutrition has not yet been evaluated in prospectively controlled clinical trials with patients undergoing elective surgery. Heyland et al. <TextLink reference="102"></TextLink> and Dhaliwal et al. <TextLink reference="103"></TextLink> analysed the studies carried out on critically ill patients. Two of these studies from the 80&#39;s came from the same study group, and were carried out on patients with bad burns and severe trauma respectively. In the meta-analysis of these studies no advantage was found of combined nutrition regarding mortality, infection, LOS and length of artificial ventilation. Heyland et al. <TextLink reference="102"></TextLink>, therefore, recommend not to begin with combined enteral and parental nutrition in critically ill patients without signs of malnutrition. They further recommend to decide on parental substrate intake on an individual basis in case of poor tolerance to enteral nutrition. </Pgraph> <Pgraph>In major elective surgeries, placement of a central venous catheter is usually a routine . It is the opinion of this expert group that in the presence of a suitable indication this access should be used for PN, especially in malnourished patients, and if necessary also as a part of hypocaloric regime. A randomised controlled study has shown that a hypocaloric PN of 25 kcal&#47;kg and 1.5 g&#47;kg protein presents no increased risk of hyperglycaemia and infectious complications, but results in a significant improvement in nitrogen balance <TextLink reference="104"></TextLink> (Ib). Insertion of a central venous catheter exclusively for artificial nutrition should be carefully considered. An increase in energy intake can be achieved in the short-term by lipid administration using peripheral venous access. An increase in enteral intake is the main objective in combined enteral&#47;parenteral nutrition.</Pgraph> <Pgraph>A possible approach to combined PN and to tapering PN when reintroducing enteral feeding is shown in plan IV.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Preoperative indications for PN"> <MainHeadline>Preoperative indications for PN</MainHeadline> <Pgraph> <UnorderedList> <ListItem level="1">Delaying surgery for a systematic nutrition therapy (enteral and parenteral) is only indicated if severe malnutrition is present (A). </ListItem> <ListItem level="1">Preoperative PN is indicated in patients where energy requirement cannot be adequately met by enteral nutrition (C).</ListItem> <ListItem level="1">An intravenous administration of 200 g glucose preoperatively during the night is recommended in patients who cannot be enterally fed (B).</ListItem> <ListItem level="1">In malnourished patients, preoperative nutrition therapy should preferably be conducted prior to hospital admission to lower the risk of nosocomial infections (C). </ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph>Positive effects of PN for 7&#8211;10 days were observed post-operatively with regards to the rate of complications <TextLink reference="83"></TextLink>, <TextLink reference="97"></TextLink> and the drop in mortality <TextLink reference="83"></TextLink> (Ib). The early post-operative release of cytokines such as IL-6 and IL-8 is, however, significantly higher when PN is administered <TextLink reference="105"></TextLink> (Ib). Furthermore, parenteral infusion involves the risk of expanding the extracellular space, thus lowering the albumin concentration and thereby, increasing the risk of pulmonary complications <TextLink reference="106"></TextLink> (Ib). Positive effects on postoperative stress adaption were reported after parenteral infusion of 1.5&#8211;2 g&#47;kg glucose and 1 g&#47;kg amino acids preoperatively (16&#8211;20 h) <TextLink reference="107"></TextLink>.</Pgraph> <Pgraph>There is insufficient data available on the comparison of enteral and parenteral nutrition preoperatively. Therefore oral or enteral feeding should be preferred whenever possible. If parenteral nutrition is necessary to meet energy needs e.g. in stenosis of the upper gastrointestinal tract, it should be combined with oral nutrition (e.g. oral nutritional supplements) whenever possible. The benefits of preoperative PN over 7&#8211;10 days are only evident in patients with severe malnutrition (weight loss &#62;15&#37;) prior to major gastrointestinal surgery <TextLink reference="83"></TextLink>, <TextLink reference="97"></TextLink>. When PN is continued for 9 days post-operatively the rate of complications is 30&#37; lower and there is a reduction in mortality (Ib). Questions regarding the type of preoperative nutritional intake have not been clearly resolved in malnourished patients. Preoperative parenteral and enteral nutrition has been compared in one prospective study. Clear advantage of preoperative PN could not be shown <TextLink reference="85"></TextLink>. The results of the meta-analysis by Braunschweig <TextLink reference="100"></TextLink>, however, do favour PN. A significantly lower mortality with a tendency towards lower rates of infection was found in malnourished patients receiving PN.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Glutamine"> <MainHeadline>Glutamine</MainHeadline> <SubHeadline>Indication for glutamine administration</SubHeadline> <Pgraph> <UnorderedList> <ListItem level="1">Currently, there is only an indication for post-operative parenteral supplementation of glutamine dipeptide solutions in severely malnourished patients who cannot be adequately fed enterally and, therefore, require PN (C).</ListItem> <ListItem level="1">A lack of sufficient evidence-based studies deter the expert group from making a general recommendation for parenteral use of glutamine in surgical patients (C). </ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph>The parenteral supplementation of glutamine dipeptide in 9 controlled randomised trials (Ib) with non-enterally fed surgical patients was reviewed by the working group with regards to the end-points morbidity and outcome (two as abstracts, see Table 2 <ImgLink imgNo="2" imgType="table"/> <TextLink reference="108"></TextLink>, <TextLink reference="109"></TextLink>, <TextLink reference="110"></TextLink>, <TextLink reference="111"></TextLink>, <TextLink reference="112"></TextLink>, <TextLink reference="113"></TextLink>, <TextLink reference="114"></TextLink>, <TextLink reference="115"></TextLink>, <TextLink reference="116"></TextLink>). In eight of these studies, the patients were to undergo elective surgery and in one after emergency visceral surgery. All studies showed significant benefits of glutamine supplementation, seven with respect to post-operative LOS and two with respect to post-operative morbidity. This correlates with the res<TextGroup><PlainText>ult</PlainText></TextGroup>s of an earlier meta-analysis examining elective surgical patients <TextLink reference="117"></TextLink> (Ia). A systematic analysis of European and Asian non-enterally nourished surgical patients res<TextGroup><PlainText>ulte</PlainText></TextGroup>d in 10 studies with the end point of infectious complications and 8 studies of post-operative LOS. Significant benefits of glutamine supplementation were also seen <TextLink reference="118"></TextLink> (Ia). Significantly improved regeneration of the post-operative immune function was shown in two current studies with immunological end points <TextLink reference="119"></TextLink>, <TextLink reference="120"></TextLink>, <TextLink reference="121"></TextLink>, <TextLink reference="122"></TextLink> (Ib).</Pgraph> <Pgraph>Based on the current understanding, exclusive PN over 5&#8211;7 days is not indicated in surgical patients particularly after elective colorectal surgery with an uncomplicated course <TextLink reference="58"></TextLink>, <TextLink reference="123"></TextLink>. To what extent does parenteral glutamine intake, with oral&#47;enteral nutrition, may have a positive effect, cannot be answered at present due to lack of available data. The possible significance of a short-term perioperative glutamine infusion for a total duration of 72 hours, beginning 24 hours before elective surgery, needs to be further clarified <TextLink reference="119"></TextLink>.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Specific aspects in paediatric surgery"> <MainHeadline>Specific aspects in paediatric surgery</MainHeadline> <Pgraph> <UnorderedList> <ListItem level="1">The recommendations on early post-operative re-e<TextGroup><PlainText>stablis</PlainText></TextGroup>hing of oral feeding generally apply also to infants, children and adolescents (C). </ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph>In neonates and premature infants, early re-establishing of food (even with the smallest amounts of EN) result in a lower risk of sepsis due to an increase in immune competence <TextLink reference="124"></TextLink>. Numerous studies have shown that post-operative energy expenditure increases in newborns after major surgery by 20&#37;, and is normal again within the first 12 to 24 hours <TextLink reference="125"></TextLink>. Post-operatively, infants tend to retain water during the first 24 hours due to increased ADH levels and, therefore, fluid intake should be restricted whereas sodium should be given in higher doses <TextLink reference="126"></TextLink>, <TextLink reference="127"></TextLink>.</Pgraph> <Pgraph>No benefits have been observed when PN is supplem<TextGroup><PlainText>ente</PlainText></TextGroup>d with glutamine in newborns and children undergoing gastrointestinal surgery <TextLink reference="128"></TextLink> (Ib). </Pgraph> <Pgraph>Children with short bowel syndrome due to genetic or acquired loss of resorptive surface are dependent on long-term PN. Liver damage and complications like thromboses, embolism and sepsis associated with intravenous nutrition determine the prognosis <TextLink reference="129"></TextLink>. An assessment by an intestinal transplantation centre should be considered for PN-dependent paediatric patients with short bowel syndrome who suffer from hyperbilirubinaemia (total bilirubin &#62;3 mg&#47;dl) for more than three months despite adequate therapy <TextLink reference="130"></TextLink>. A formula is available to calculate the anticipated duration of PN-dependency in order to determine an early indication of transplantation <TextLink reference="131"></TextLink>. An isolated small intestine transplantation is strived for in children with reversible liver damage. PN may usually be terminated over medium-term after the small intestine transplantation has been successful.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Organ transplantation"> <MainHeadline>Organ transplantation</MainHeadline> <SubHeadline>PN in patients after organ transplants</SubHeadline> <Pgraph> <UnorderedList> <ListItem level="1">An early re-establishing of oral feeding should be strived for after successful, uncomplicated heart, liver, and kidney transplantation procedures (C).</ListItem> <ListItem level="1">Early EN, combined with PN if necessary, is recomm<TextGroup><PlainText>ende</PlainText></TextGroup>d within 24 hours after liver or pancreas transplantations (C).</ListItem> <ListItem level="1">EN should be increased very carefully within the first week of a small intestine transplantation. Enteral&#47;parenteral nutrition should be combined as well (C).</ListItem> <ListItem level="1">No recommendation can be made for parenteral supplementation of immune-modulatory substrates due to the lack of data available (C). </ListItem> <ListItem level="1">No recommendation can be made regarding the parenteral supplementation of glutamine and arginine to precondition against ischemia&#47;reperfusion damage (C).</ListItem> </UnorderedList> </Pgraph> <SubHeadline>Commentary</SubHeadline> <Pgraph><Mark2>Early oral or enteral feeding should also be strived for transplantation patients</Mark2> <TextLink reference="132"></TextLink>, <TextLink reference="133"></TextLink>.</Pgraph> <Pgraph>Absorption and blood levels from tacrolism are not impaired by EN <TextLink reference="134"></TextLink> (IIb). EN and PN are equally important in patients after liver transplantations <TextLink reference="90"></TextLink> (Ib). </Pgraph> <Pgraph>Benefits have been reported with administration of MCT&#47;LCT lipid emulsions compared to LCT emulsions, with more favourable regeneration of the function of the reticuloendothelial system after liver transplantation <TextLink reference="135"></TextLink>. The metabolism of both lipid solutions shows no difference <TextLink reference="136"></TextLink> (Ib). </Pgraph> <Pgraph>Advantages of EN are evident when the incidence of viral infections is considered <TextLink reference="137"></TextLink> (Ib). In comparison to a standard enteral diet in combination with selective intestinal contamination, a significant drop in the rate of infection was also shown through the use of a high-fibre diet enriched with Lactobacillus plantarum <TextLink reference="138"></TextLink> (Ib).</Pgraph> <Pgraph>The placement of a fine needle catheter jejunostomy is also feasible in liver transplanted patients <TextLink reference="139"></TextLink> (IIb). After small intestine transplantation EN is more difficult because of increased intestinal secretion <TextLink reference="140"></TextLink>.</Pgraph> <Pgraph>The role of pre-conditioning the organ donor or the donor organ i.e. through high-dosage arginine intake for the production of NO and its conversion into glutamine and glutathione is a still open-ended question.</Pgraph> <Pgraph>There are no clinical trials on parenteral immunonutrition. Data resulting from animal experiments on parenteral supplementation with glutamine after transplantation of the small intestine show beneficial trophic effects with low mucosa permeability and a low rate of bacterial translocation <TextLink reference="141"></TextLink>.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Attachment"> <MainHeadline>Attachment</MainHeadline> <SubHeadline>Advice and examples for post-operative PN on general wards</SubHeadline> <Pgraph>See also &#8220;Safe Practices of PN&#8221; <TextLink reference="126"></TextLink></Pgraph> <Pgraph> <UnorderedList> <ListItem level="1">Multi-chamber bags must be mixed according to instructions prior to administration.</ListItem> <ListItem level="1">Attention should be paid to expiry date, precipitation etc.</ListItem> <ListItem level="1">Careful labelling of infusion bags (admixtures, patient&#39;s name)</ListItem> <ListItem level="1">Solutions with high osmolarity (&#62;800 mosm&#47;l) should only be infused via central venous access.</ListItem> <ListItem level="1">The infusion is administered via infusion pumps when feeding paediatric patients and when using hypercaloric nutrition.</ListItem> <ListItem level="1">Regular checks of the infused solutions should be made during every shift in order to recognise and correct irregularities.</ListItem> <ListItem level="1">Replacement of the whole infusion system including the three-way valve should take place every 3<Superscript>rd</Superscript> day. </ListItem> <ListItem level="1">For drug infusion via piggy-bag a separate intravenous line should be used. </ListItem> <ListItem level="1">Attention should be paid to hygiene rules when inj<TextGroup><PlainText>ectin</PlainText></TextGroup>g admixtures, penetrating a vein or changing the infusion system, or during manipulations at the access etc.</ListItem> <ListItem level="1">Replacement of additional fluid losses (fever, drainages, diarrhoea, vomiting, stomach tube, etc.).</ListItem> <ListItem level="1">Exact documentation in the chart (length of infusion, signature)</ListItem> <ListItem level="1">Regular laboratory tests.</ListItem> </UnorderedList> </Pgraph> <SubHeadline>Post-operative infusion and nutrition therapy</SubHeadline> <SubHeadline2>Plan I: Fast track with immediate re-establishing of oral food </SubHeadline2> <Pgraph><Mark1>Indication:</Mark1> Patients who are not suffering from malnutrition and who may receive sufficient oral or enteral nutrition within 4 days, do not require PN irrespective of the type and size of surgery.</Pgraph> <Pgraph><Mark1>Principle:</Mark1> Exclusively electrolyte, fluids and glucose administration irrespective of body weight. Peripheral venous administration is possible. The electrolyte solution can serve as a carrier solution for drugs. Simultaneous increase in oral fluid intake and gradual re-establishing of food.</Pgraph> <Pgraph><Mark1>Application:</Mark1> Peripheral venous, crystalloids &#8211; preferred solution: balanced electrolyte solution, NaCl 0.9&#37; in case of increase in serum potassium (dialysis patients).</Pgraph> <Pgraph>See example in Table 3 <ImgLink imgNo="3" imgType="table"/>. </Pgraph> <SubHeadline2>Plan II: Short-term hypocaloric PN</SubHeadline2> <Pgraph><Mark1>Indication:</Mark1> Patients who are not malnourished and who probably will <Mark1>not</Mark1> be able to receive sufficient oral or enteral nutrition within 4 days of surgery.</Pgraph> <Pgraph><Mark1>Principle:</Mark1> Hypocaloric PN, i.e. adequate amino acid substitution with limited carbohydrate infusion, only meeting the basic requirements.</Pgraph> <Pgraph><Mark1>Application:</Mark1> Peripheral venous administration is possible. However, it could lead to vein irritation especially with the additional administration of electrolytes, drugs (i.e. antibiotic infusion etc.), complete solutions or two-chamber bags.</Pgraph> <Pgraph>See example in Table 4 <ImgLink imgNo="4" imgType="table"/>.</Pgraph> <SubHeadline2>Plan III: PN to meet energy and nutritional requirements</SubHeadline2> <Pgraph><Mark1>Indications:</Mark1> All patients who are suffering from malnutrition, and those who are not suffering from malnutrition but will not be able to receive sufficient oral or enteral nutrition within 7 days, or those who are not suffering from malnutrition but where it is not anticipated that adequate oral or enteral nutrition can be administered within 14 days. </Pgraph> <Pgraph><Mark1>Principle:</Mark1> Required calorie intake taking into account all substrates as well as adequate substitutions of vitamins and trace elements (total PN). Lipid intake is started on the third day. </Pgraph> <Pgraph>There is marked interindividual variance in energy needs for newborns and infants under severe post-operative conditions. Jaksic et al. <TextLink reference="142"></TextLink> was not able to detect any increased energy expenditure as a result of massive post-operative stress in newborns. In infants, weight development and fluid balance should be observed to evaluate energy intake. Additionally CO<Subscript>2</Subscript> production may be measured. </Pgraph> <Pgraph><Mark1>Application:</Mark1> Central venous (catheter via the vena jugularis or vena subclavia), mixed or two-chamber and three-chamber bags. The electrolyte solution can serve as a carrier solution for drugs.</Pgraph> <Pgraph>See example in Table 5 <ImgLink imgNo="5" imgType="table"/>.</Pgraph> <SubHeadline2>Plan IV: Combined enteral and parenteral nutrition </SubHeadline2> <Pgraph><Mark1>Indications:</Mark1> All patients, with indications for artificial nutrition, who are unlikely to meet caloric requirements through EN. </Pgraph> <Pgraph><Mark1>Principle:</Mark1> The parenteral substrate intake is adjusted as enteral intake is tolerated with the objective of gradually meeting caloric requirements enterally. </Pgraph> <Pgraph><Mark1>Application:</Mark1> Enteral tube&#47;needle catheter jejunostomy or peripheral venous access, two and three-chamber bags. </Pgraph> <Pgraph>See example in Table 6 <ImgLink imgNo="6" imgType="table"/>.</Pgraph> </TextBlock> <TextBlock linked="yes" name="Notes"> <MainHeadline>Notes</MainHeadline> <Pgraph>This article is part of the publication of the Guidelines on Parenteral Nutrition from the German Society for Nutritional Medicine (overview and corresponding address under <Hyperlink href="http:&#47;&#47;www.egms.de&#47;en&#47;journals&#47;gms&#47;2009-7&#47;000086.shtml">http:&#47;&#47;www.egms.de&#47;en&#47;journals&#47;gms&#47;2009-7&#47;000086.shtml</Hyperlink>).</Pgraph> <Pgraph>English version edited by Sabine Verwied-Jorky, Rashmi Mittal and Berthold Koletzko, Univ. of Munich Medical Centre, Munich, Germany.</Pgraph> </TextBlock> <References linked="yes"> <Reference refNo="1"> <RefAuthor>Velanovich V</RefAuthor> <RefTitle>The value of routine preoperative laboratory testing in predicting postoperative complications: a multivariate analysis</RefTitle> <RefYear>1991</RefYear> <RefJournal>Surgery</RefJournal> <RefPage>236-43</RefPage> <RefTotal>Velanovich V. 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DOI: 10.1053&#47;jpsu.2001.20007</RefTotal> <RefLink>http:&#47;&#47;dx.doi.org&#47;10.1053&#47;jpsu.2001.20007</RefLink> </Reference> </References> <Media> <Tables> <Table format="png"> <MediaNo>1</MediaNo> <MediaID>1</MediaID> <Caption> <Pgraph> <Mark1>Table 1: Randomised controlled studies on perioperative PN</Mark1> </Pgraph> </Caption> </Table> <Table format="png"> <MediaNo>2</MediaNo> <MediaID>2</MediaID> <Caption> <Pgraph> <Mark1>Table 2: Randomised controlled studies on glutamine supplementation in the PN of surgical patients</Mark1> </Pgraph> </Caption> </Table> <Table format="png"> <MediaNo>3</MediaNo> <MediaID>3</MediaID> <Caption> <Pgraph> <Mark1>Table 3: Example for fast track</Mark1> </Pgraph> </Caption> </Table> <Table format="png"> <MediaNo>4</MediaNo> <MediaID>4</MediaID> <Caption> <Pgraph> <Mark1>Table 4: Example for short-term hypocaloric PN</Mark1> </Pgraph> </Caption> </Table> <Table format="png"> <MediaNo>5</MediaNo> <MediaID>5</MediaID> <Caption> <Pgraph> <Mark1>Table 5: Example for PN to meet energy and nutritional requirements</Mark1> </Pgraph> </Caption> </Table> <Table format="png"> <MediaNo>6</MediaNo> <MediaID>6</MediaID> <Caption> <Pgraph> <Mark1>Table 6: Example for combined enteral and parenteral nutrition</Mark1> </Pgraph> </Caption> </Table> <NoOfTables>6</NoOfTables> </Tables> <Figures> <NoOfPictures>0</NoOfPictures> </Figures> <InlineFigures> <NoOfPictures>0</NoOfPictures> </InlineFigures> <Attachments> <NoOfAttachments>0</NoOfAttachments> </Attachments> </Media> </OrigData> </GmsArticle>