Display options
Share it on

Clin Pharmacokinet. 2002;41(14):1135-51. doi: 10.2165/00003088-200241140-00002.

Pharmacokinetic and pharmacodynamic considerations when treating patients with sepsis and septic shock.

Clinical pharmacokinetics

Peter De Paepe, Frans M Belpaire, Walter A Buylaert

Affiliations

  1. Heymans Institute of Pharmacology, Ghent University, Ghent, Belgium. [email protected]

PMID: 12405864 DOI: 10.2165/00003088-200241140-00002

Abstract

Sepsis and septic shock are accompanied by profound changes in the organism that may alter both the pharmacokinetics and the pharmacodynamics of drugs. This review elaborates on the mechanisms by which sepsis-induced pathophysiological changes may influence pharmacological processes. Drug absorption following intramuscular, subcutaneous, transdermal and oral administration may be reduced due to a decreased perfusion of muscles, skin and splanchnic organs. Compromised tissue perfusion may also affect drug distribution, resulting in a decrease of distribution volume. On the other hand, the increase in capillary permeability and interstitial oedema during sepsis and septic shock may enhance drug distribution. Changes in plasma protein binding, body water, tissue mass and pH may also affect drug distribution. For basic drugs that are bound to the acute phase reactant alpha(1)-acid glycoprotein, the increase in plasma concentration of this protein will result in a decreased distribution volume. The opposite may be observed for drugs that are extensively bound to albumin, as the latter protein decreases during septic conditions. For many drugs, the liver is the main organ for metabolism. The determinants of hepatic clearance of drugs are liver blood flow, drug binding in plasma and the activity of the metabolic enzymes; each of these may be influenced by sepsis and septic shock. For high extraction drugs, clearance is mainly flow-dependent, and sepsis-induced liver hypoperfusion may result in a decreased clearance. For low extraction drugs, clearance is determined by the degree of plasma binding and the activity of the metabolic enzymes. Oxidative metabolism via the cytochrome P450 enzyme system is an important clearance mechanism for many drugs, and has been shown to be markedly affected in septic conditions, resulting in decreased drug clearance. The kidneys are an important excretion pathway for many drugs. Renal failure, which often accompanies sepsis and septic shock, will result in accumulation of both parent drug and its metabolites. Changes in drug effect during septic conditions may theoretically result from changes in pharmacodynamics due to changes in the affinity of the receptor for the drug or alterations in the intrinsic activity at the receptor. The lack of valid pharmacological studies in patients with sepsis and septic shock makes drug administration in these patients a difficult challenge. The patient's underlying pathophysiological condition may guide individual dosage selection, which may be guided by measuring plasma concentration or drug effect.

References

  1. Am J Physiol. 1992 Jul;263(1 Pt 1):G38-43 - PubMed
  2. N Engl J Med. 1993 May 20;328(20):1471-7 - PubMed
  3. Int J Clin Pharmacol Ther. 1997 Sep;35(9):397 - PubMed
  4. Chest. 1995 Dec;108(6):1648-54 - PubMed
  5. Ann Intern Med. 1991 Feb 15;114(4):332-3 - PubMed
  6. JAMA. 1993 Sep 8;270(10):1203-10 - PubMed
  7. Arch Surg. 1984 Dec;119(12):1410-8 - PubMed
  8. Arch Surg. 1987 Feb;122(2):207-12 - PubMed
  9. J Infect Dis. 1984 Mar;149(3):443-8 - PubMed
  10. N Engl J Med. 1999 Jan 21;340(3):207-14 - PubMed
  11. Circ Shock. 1989 Feb;27(2):111-22 - PubMed
  12. Acta Chir Scand Suppl. 1985;526:7-12 - PubMed
  13. Clin Pharmacokinet. 1992 Mar;22(3):169-210 - PubMed
  14. Ann Surg. 1980;192(4):570-80 - PubMed
  15. Intensive Care Med. 1990;16 Suppl 3:S235-8 - PubMed
  16. Am J Respir Crit Care Med. 2000 Mar;161(3 Pt 1):775-9 - PubMed
  17. Crit Care Clin. 1985 Nov;1(3):453-70 - PubMed
  18. Circ Shock. 1993 Jun;40(2):92-8 - PubMed
  19. Intensive Care Med. 1997 Mar;23(3):282-7 - PubMed
  20. Br J Clin Pharmacol. 1992 Jul;34(1):53-9 - PubMed
  21. Cardiovasc Res. 1984 Apr;18(4):195-205 - PubMed
  22. Clin Pharmacokinet. 1998 Jan;34(1):25-56 - PubMed
  23. Anesthesiology. 2000 Dec;93(6):1482-90 - PubMed
  24. Kidney Int Suppl. 1998 Feb;64:S15-8 - PubMed
  25. Circ Res. 1969 Jun;24(6):777-86 - PubMed
  26. Anaesth Intensive Care. 1988 Nov;16(4):418-22 - PubMed
  27. Am J Respir Crit Care Med. 1994 Aug;150(2):324-9 - PubMed
  28. Crit Care Med. 1991 May;19(5):664-71 - PubMed
  29. Clin Ther. 1983;5(4):417-21 - PubMed
  30. JAMA. 1994 Nov 2;272(17):1354-7 - PubMed
  31. Clin Pharmacokinet. 1988 Jun;14(6):347-73 - PubMed
  32. Intensive Care Med. 1991;17(8):465-8 - PubMed
  33. MMWR Morb Mortal Wkly Rep. 1990 Jan 19;39(2):31-4 - PubMed
  34. J Antimicrob Chemother. 1993 Nov;32 Suppl B:117-22 - PubMed
  35. Crit Care Med. 1996 Jun;24(6):1072-8 - PubMed
  36. Crit Care Med. 1993 Jan;21(1):31-9 - PubMed
  37. Clin Pharmacokinet. 1998 Oct;35(4):293-312 - PubMed
  38. Am J Respir Crit Care Med. 1998 Apr;157(4 Pt 1):1219-25 - PubMed
  39. Clin Pharmacokinet. 1998 Sep;35(3):223-46 - PubMed
  40. Anesthesiology. 1996 Jun;84(6):1435-42 - PubMed
  41. Clin Pharmacol Ther. 1999 Dec;66(6):554-62 - PubMed
  42. Drug Metab Rev. 1997 Nov;29(4):1129-88 - PubMed
  43. Crit Care Med. 1987 Aug;15(8):751-6 - PubMed
  44. Ann Surg. 1966 Jun;163(6):866-85 - PubMed
  45. Crit Care Med. 1991 Dec;19(12):1480-5 - PubMed
  46. Crit Care Med. 1999 Mar;27(3):639-60 - PubMed
  47. Intensive Care Med. 1990;16(5):303-6 - PubMed
  48. Lancet. 1995 Jul 15;346(8968):145-7 - PubMed
  49. J Antimicrob Chemother. 1997 Jul;40(1):121-4 - PubMed
  50. Crit Care Med. 1997 May;25(5):806-11 - PubMed
  51. Ann Surg. 1980;192(4):491-504 - PubMed
  52. N Engl J Med. 2000 May 18;342(20):1520-2 - PubMed
  53. Crit Care Med. 1999 Feb;27(2):325-31 - PubMed
  54. Anaesthesia. 1996 Jan;51(1):11-5 - PubMed
  55. Crit Care Med. 1993 Sep;21(9):1296-303 - PubMed
  56. Clin Pharmacokinet. 1978 Jan-Feb;3(1):58-71 - PubMed
  57. Am J Health Syst Pharm. 1997 Mar 1;54(5):537-40 - PubMed
  58. Intensive Care Med. 1997 Jan;23(1):31-7 - PubMed
  59. Crit Care Med. 1992 Apr;20(4):451-7 - PubMed
  60. Pharm World Sci. 1998 Oct;20(5):183-92 - PubMed
  61. Acta Anaesthesiol Scand. 1999 Aug;43(7):726-30 - PubMed
  62. Ther Drug Monit. 1994 Apr;16(2):139-44 - PubMed
  63. Rev Infect Dis. 1979 Jan-Feb;1(1):189-94 - PubMed
  64. Arch Surg. 1983 Nov;118(11):1293-9 - PubMed
  65. Am J Respir Crit Care Med. 1999 Sep;160(3):839-45 - PubMed
  66. Surgery. 1980 Feb;87(2):164-9 - PubMed
  67. Crit Care Med. 1995 Feb;23(2):265-71 - PubMed
  68. Crit Care Med. 1993 Feb;21(2 Suppl):S4-8 - PubMed
  69. Clin Pharmacokinet. 1996 Dec;31(6):410-22 - PubMed
  70. Surgery. 1992 Sep;112(3):549-61 - PubMed
  71. Clin Pharm. 1987 Feb;6(2):148-53 - PubMed
  72. Circ Shock. 1992 Apr;36(4):312-20 - PubMed
  73. Surgery. 1994 Mar;115(3):310-24 - PubMed
  74. Br J Anaesth. 1996 Jul;77(1):32-49 - PubMed
  75. Crit Care Med. 1993 Feb;21(2):248-51 - PubMed
  76. Ann Surg. 1967 Apr;165(4):504-17 - PubMed
  77. Am J Respir Crit Care Med. 1996 Dec;154(6 Pt 1):1684-8 - PubMed
  78. Antimicrob Agents Chemother. 1982 Mar;21(3):407-11 - PubMed
  79. Crit Care Med. 1994 May;22(5):789-95 - PubMed
  80. Arch Surg. 1991 Feb;126(2):219-24 - PubMed
  81. Br J Clin Pharmacol. 1997 Jun;43(6):627-32 - PubMed
  82. Chest. 1993 Jul;104(1):225-9 - PubMed
  83. Br J Anaesth. 1993 Aug;71(2):282-90 - PubMed
  84. Anaesth Intensive Care. 1993 Apr;21(2):172-3 - PubMed
  85. Anesthesiology. 1994 Jul;81(1):87-93 - PubMed
  86. Crit Care Med. 1992 Jun;20(6):864-74 - PubMed
  87. Acta Anaesthesiol Scand. 1997 Nov;41(10):1267-72 - PubMed
  88. Intensive Care Med. 1986;12(5):366-9 - PubMed
  89. Aust N Z J Med. 1998 Jun;28(3):311-5 - PubMed
  90. Anaesthesia. 1994 Mar;49(3):188-9 - PubMed
  91. Surgery. 1987 Jan;101(1):69-80 - PubMed
  92. Ann Surg. 1970 Mar;171(3):321-8 - PubMed
  93. Antimicrob Agents Chemother. 1993 Mar;37(3):464-73 - PubMed
  94. Antimicrob Agents Chemother. 1994 Jun;38(6):1219-24 - PubMed
  95. Chest. 1989 Jun;95(6):1295-7 - PubMed
  96. Drug Metab Rev. 1999 Feb;31(1):29-41 - PubMed
  97. Med J Aust. 1990 Nov 5;153(9):534-41 - PubMed
  98. Crit Care Med. 1982 Nov;10(11):703-5 - PubMed
  99. Am J Physiol. 1991 Dec;261(6 Pt 2):R1507-12 - PubMed
  100. N Engl J Med. 1981 Feb 12;304(7):387-92 - PubMed
  101. Shock. 1995 Jan;3(1):21-6 - PubMed
  102. Crit Care Med. 2000 Mar;28(3):620-6 - PubMed
  103. Clin Pharmacokinet. 1997 Dec;33(6):426-53 - PubMed
  104. Hepatology. 1989 Oct;10(4):437-46 - PubMed
  105. Rev Infect Dis. 1985 Nov-Dec;7 Suppl 4:S716-23 - PubMed
  106. Crit Care Med. 1988 Apr;16(4):327-30 - PubMed
  107. Clin Pharm. 1987 Feb;6(2):154-9 - PubMed
  108. JAMA. 1994 Jan 19;271(3):226-33 - PubMed
  109. Drugs. 1999 Sep;58(3):429-46 - PubMed
  110. Am J Physiol. 1995 Mar;268(3 Pt 2):H1106-14 - PubMed
  111. Anaesthesia. 1987 Jun;42(6):619-26 - PubMed
  112. J Clin Invest. 1994 Dec;94(6):2209-14 - PubMed
  113. Xenobiotica. 1993 Nov;23(11):1195-230 - PubMed
  114. JAMA. 1997 Jul 16;278(3):234-40 - PubMed
  115. Clin Pharmacokinet. 1984 Jul-Aug;9(4):273-308 - PubMed
  116. Anaesthesia. 1996 May;51(5):431-4 - PubMed
  117. Clin Pharmacol Ther. 1989 Nov;46(5):537-44 - PubMed
  118. Surgery. 1982 Oct;92(4):713-9 - PubMed
  119. Crit Care Med. 1997 Mar;25(3):399-404 - PubMed
  120. Pharmacotherapy. 1998 Jul-Aug;18(4):759-78 - PubMed
  121. Antimicrob Agents Chemother. 1998 Sep;42(9):2235-9 - PubMed
  122. DICP. 1989 Apr;23(4):316-23 - PubMed
  123. Clin Pharm. 1993 Feb;12(2):131-4 - PubMed

Substances

MeSH terms

Publication Types