ESPEN Congress Lisbon 2004 Enteral nutrition and gut function Feeding the patient/feeding the gut Peter Soeters Feeding the Gut Department of Surgery academic hospital Maastricht The Relevance of intact gutfunction • • • The Gut-Liver axis Permeability and Translocation/MOF Conclusions Dagci et al Acta Tropica 2002 81:1-5 Rocha et al Surgery 2001 130:65-73 Rinsema et al SGO 1988 167: 372-6 Rinsema et al SGO 1988 167: 372-6 Spitz et al Crit Care Med 1996 24: 635-41 Kyiama et al JPEN 1998 22: 276-279 Capron et al Lancet 1983 26: 446-7 Kwashiokor: Undernutrition and Infection Marasmus: Undernutrition Welsh et al Gut 1998 42: 396-401 Perdue Mary Am J Phys 1999 G1-G5 Jejunal-ileal bypass! Drenick et al GE1982 82:535-48 Garcia-Lafuente et al Gut 2001 48:503-507 Garcia-Lafuente et al Gut 2001 48:503-507 Shi Qi Yang et al, ProcNatlAcadSci 1997; 94: 2557-2562 Shi Qi Yang et al, ProcNatlAcadSci 1997; 94: 2557-2562 Shi Qi Yang et al, ProcNatlAcadSci 1997; 94: 2557-2562 Shi Qi Yang et al, ProcNatlAcadSci 1997; 94: 2557-2562 Wigg et al, Gut 2001; 48:206-211 Wigg et al, Gut 2001; 48:206-211 Tilg and Diehl, NEJM 2000; 343: 1467-1476 No food/intest.secretions in small bowel • • • • Intoxicates the liver Refunctionalisation relieves the intoxication Bile, gastric and pancreativ juice, and nutrition Intrahepatic cholestasis is not exclusively dependent on Parenteral Nutrition • Morbidity, Mortality (especially in children) • The non-functioning gut induces direct of indirect toxic impulses, NASH and diminished immune function of the liver (exp) The Gut-Liver axis • • • • • • No food, no secretions Stasis of luminal contents/Stenosis Bacterial overgrowth Secondary bile acids (toxic for the liver) Increased absorption of toxins Inbalance of Pro- en Anti-inflammatory Cytokines and direct consequences for the liver • Undernutrition/Depletion • A diminished bile acid pool (less binding of endotoxin?) The TPN-Liver axis • • • • • Septic patients clear less fat Clearance of Parenteral fat is worse than Enteral fat Some fats are worse than others Many patients have already steatotic livers Hypertriglyceridemia/Steatosis and Cholestasis go hand in hand • These abnormalities cause liver failure in the long run – liver transplantation in children – Liver transplantation in patients with malabsorptive (bypass) surgery for morbid obesity – Liver failure in Short Bowel patients with home TPN • Steatosis may depress immunefunction in the short term and may sensitize the liver to endotoxin Moore et al, Ann Surg 1992; 216: 173-183 Moore et al, Ann Surg 1992; 216: 173-183 Moore et al, Ann Surg 1992; 216: 173-183 Moore et al, Ann Surg 1992; 216: 173-183 Reynolds et al, JPEN; 21: 196-201 Reynolds et al, JPEN; 21: 196-201 Reynolds et al, JPEN; 21: 196-201 The Gut-Liver-TPN axis • Promote gut function to diminish liver damage!! – – – – – – • • • Bacterial overgrowth etc Bile acid pool (ursodeoxycholic acid) Peristalsis and evacuation Anatomy (blind loops, stenosis etc) Infection/Inflammation Nourish enterally as much as possible (Beware of MOF, or abdominal infection) Obesity, Diabetes, Alcohol riskfactors Promote fat clearance (good fat, EN) Promote EN to have fewer septic complications in the short term?? The Relevance of intact gutfunction • • • The Gut-Liver axis Permeability and Translocation/MOF Conclusions Harris et al Int Care Med 1992 18:38-41 Marshall et al Ann Surg 1993 218: 111-9 Sedman et al, GE 1994 107: 643-9 Welsh et al Gut 1998 42: 396-401 In addition: no correlation cultured microorganism at operation and cause of sepsis MOF via the gut • • • • • • • Meningococci sepsis insidious Pneumococci sepsis insidious Cholesepsis insidious Urosepsis insidious No MOF in celiac disease No MOF in Crohn’s disease Infection in Necrotising Pancreatitis takes 1 to more weeks • We have bacteriaemias continually and from several sites (brushing teeth, furunculosis, intercourse, gut etc) • MOF from gut no prerequisite; gut permeability non-specific The Relevance of intact gutfunction • • • The Gut-Liver axis Permeability and Translocation/MOF Conclusions Conclusions • There is much more to gut permeability: Normal functioning of the gut – – – – – No strictures No bypassed segments No bacterial overgrowth Normal bile acid pool Normal peristalsis and activation (food) – Essential for normal absorption of food and for healthy liver-gut axis • Importance of permeability for MOF overstated Conclusions I • Continuous TH1 and TH2 activity • Pro-inflammatory activity defends against protein antigens • Anti-inflammatory acivity tapers the inflammatory respons • M.Crohn dysbalance between TH1 and Th2 activity Conclusions II • Increased permeability during starvation • Decreased sIGA activity, increased bacterial adhesiveness • Bacterial overgrowth • Diminished entero-hepatic cycling • Increased sensitivity of the liver to toxic influences • Translocation bacteria and MOF unclear • Inflammatory response in the mucosa may affect liverfunction, mediated by cytokines • Permeability badly defined! Similar Pathology • • • • • • • Short bowel syndrome Jejuno-ileal bypass Primary Sclerosing Cholangitis Kwashiorkor Parenteral Nutrition and Gut Starvation Blind loops Etc The significance of Bowel permeability • Permeability • Clinical applicability – Disease – Nutrition • Permeability and Translocation/MOF • The Gut-Liver axis • Conclusions De nuchtere darm • Aanwijzingen voor toegenomen permeabiliteit • Aanwijzingen voor verminderde villus hoogte • Veranderingen in functie – Verminderde secretie sIGA (Alverdy) Kyiama et al JPEN 1998 22: 276-279 Darm-Lever-Organisme as • • • • • Een nuchtere darm Stase van darminhoud Secundaire galzouten Ondervoeding/ Depletie Kleine galzout pool Stase van darminhoud • Rotting en bacteriele overgroei • Waarom beinvloedt dit de lever? • Wat zijn de consequenties voor het hele organisme? • Multiple orgaan falen? Darm-Lever-Organisme as • • • • • Een nuchtere darm Stase van darminhoud Secundaire galzouten Ondervoeding/ Depletie Kleine galzout pool Secundaire galzouten • Cholestatische en niet-cholestatische galzouten • Hydroxylering van galzouten • Toxische effecten op de lever • (kleinere galzout pool) Darm-Lever-Organisme as • • • • • Een nuchtere darm Stase van darminhoud Secundaire galzouten Ondervoeding/ Depletie Kleine galzout pool Ondervoeding/ Depletie • Maakt de lever meer gevoelig voor de effecten van alcohol, sec. galzouten etc. • Kwashiorkor gele lever, groot, hongeroedeem, ontsteking etc • Verminderde functies van de darm Welsh et al Gut 1998 42: 396-401 Welsh et al Gut 1998 42: 396-401 Darm-Lever-Organisme as • • • • • Een nuchtere darm Stase van darminhoud Secundaire galzouten Ondervoeding/ Depletie Kleine galzout pool Kleine galzout pool • Lever gevoeliger voor toxische invloeden • Ondanks kleine galzout pool en snelle passage toch vorming van sec. galzouten (neonaten) Evans et al Br J Surg 1982 69: 706-8 Hongeren en metabole functie van de darm • Glutamine effecten • Glutathion • Labiele eiwit pool Van der Hulst Lancet 1993 334: 1363-5 Conclusies • Relevantie darm-lever as duidelijk • MOF onduidelijk • Principe – Kortgesloten darmgedeelten – Extrahepatische cholestase/Hepatitis – Primair scleroserende cholangitis/ inflammatoire darm ziekten – Sepsis (Pneumonie biliaire) – Jejuno-ileal bypass, Necrotiserende EnteroColitis/Lever (transplantatie) Bondar et al Arch Surg 1967 94: 707-16 Bondar et al Arch Surg 1967 94: 707-16 Drenick et al Gastroenterology 1982 82: 535-48 Merritt RJ J Pediatric Gastroenterology Nutrition 1986 5: 9-22 Het jonge stel Perdue Mary Am J Phys 1999 G1-G5 Nutritional depletion Weight change with time in patients with unresectable pancreatic cancer given EPA enriched supplement 35 30 Supplement started 25 20 Weight change 15 (kg) 10 5 0 -5 -10 -8 -6 -4 -2 0 Time (months) M.D. Barber et al. ESPEN Nice 1998 2 4 6 8 10 Darm-Lever-Organisme as • Wonderbaarlijk, dat een cellaag al de junk buiten houdt • Continue TH1 en TH2 activiteit • Pro-inflammatoire activiteit maakt antigene eiwitten onschadelijk • Anti-inflammatoire aciviteit tapert de ontstekingsreactie • M.Crohn dysbalans tussen TH1 en Th2 activiteit Kyiama et al JPEN 1998 22: 276-279 Kyiama et al JPEN 1998 22: 276-279 Bondar et al Arch Surg 1967 94: 707-16 Travis et al Cl Science 1992: 82,471-88 Travis et al Cl Science 1992: 82,471-88 Bjarnason et al GE 1995 108:1566-1581 Wyatt et al Lancet 1993 341:1437-39 Harris et al Int Care Med 1992 18:38-41 Parks et al Br J of Surg 1996 83:1345-49 Parks et al Br J of Surg 1996 83:1345-49 Parks et al Br J of Surg 1996 83:1345-49 Drenick et al GE1982 82:535-48 Drenick et al GE1982 82:535-48 Garcia-Lafuente et al Gut 2001 48:503-507 Garcia-Lafuente et al Gut 2001 48:503-507 Gitter et al GE 2001 121:1320-28 Rocha et al Surgery 2001 130:65-73 Bjarnason et al GE 1995 108:1566-1581