The Clinical Significance of Serum C-reactive Protein in Patients with Acute Uncomplicated Pyelonephritis

급성 신우신염 환자에서 혈청 C-reactive Protein의 임상적 의의

Chung, Hong;Kim, Tong-Wook;Lee, Chang-Hoon;Kim, Hong-Sup
정홍;김동욱;이창훈;김홍섭

  • Published : 20050500

Abstract

Purpose: To evaluate the predicted results of treatment and to decide the time of using parenteral antibiotics to oral medication in Acute Uncomplicated Pyelonephritis, the serum C-reactive protein (CRP), WBC counts and body temperature (BT) were compared. Materials and Methods: Between May 2003 and August 2004, 59 female patients with acute uncomplicated pyelonephritis were enrolled. The serum CRP, WBC counts and BT were measured on the first, third, fifth and seventh day after admission, and on the seventh day following discharge. The durations and patterns of the serum CRP, WBC counts and BT were statistically assessed after the use of parenteral antibiotics. Results: The serum CRP, WBC counts and BT were increased in all patients on the first hospital day, but only the serum CRP was statistically correlated with the clinical course, with an average level of 11.83mg/dl. After the use of parenteral antibiotics, the mean serum CRP decreased to 8.38, 4.00 and 1.92mg/dl on the third, fifth and seventh day after admission, respectively. There were no cases increased serum CRP level or recurrence of inflammation during the follow-up period. The initial serum CRP level was also correlated with the disease severity when over 15mg/dl, the longer use of parenteral antibiotics and the longer stay in hospital were needed. Conclusions: Clinically, the level of serum CRP was a better indicator in determining the therapeutic effect of parenteral antibiotics use in patients with acute uncomplicated pyelonephritis than either the WBC counts or BT. Especially, in patients whose serum CRP level was decreased below 2.00mg/dl during the early days of the hospital stay, a decreased use of parenteral antibiotics and decreased hospital stay were observed. The initial serum CRP level was also correlated with disease severity.

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References

  1. Yilmaz E, Batislam E, Tuglu D, Kilic D, Basar M, Ozluk O, et al. C-reactive protein in early detection of bacteriemia and bacteriuria after extracorporeal shock wave lithotripsy. Eur Urol 2003;43:270-4 https://doi.org/10.1016/S0302-2838(03)00041-1
  2. Macy EM, Hayes TE, Tracy RP. Variability in the measurement of C-reactive protein in healthy subjects: implications for reference intervals and epidemiological applications. Clin Chem 1997;43:52-8
  3. Fischer CL, Gill CW, Forrester MG, Nakamura R. Quantitation of 'acute-phase proteins' postoperatively. Value in detection and monitoring of complications. Am J Clin Pathol 1976;66: 840-6
  4. Whicher JT, Bell AM, Martin MF, Marshall LA, Dieppe PA. Prostaglandins cause an increase in serum acute-phase proteins in man, which is diminished in systemic sclerosis. Clin Sci (Lond) 1984;66:165-71
  5. Claus DR, Siegel J, Petras K, Osmand AP, Gewurz H. Interactions of C-reactive protein with the first component of human complement. J Immunol 1977;119:187-92
  6. Volanakis JE, Kaplan MH. Interaction of C-reactive protein complexes with the complement system. II. Consumption of guinea pig complement by CRP complexes: requirement for human C1q. J Immunol 1974;113:9-17
  7. Jodal U, Hanson LA. Sequential determination of C-reactive protein in acute childhood pyelonephritis. Acta Paediatr Scand 1976;65:319-22 https://doi.org/10.1111/j.1651-2227.1976.tb04892.x
  8. McCarthy PL, Flank AL, Albow RC, Masters SJ, Dolan TF Jr. Value of the C-reactive protein test in differentiation of bacterial and viral pneumonia. J Pediatr 1978;92:454-6 https://doi.org/10.1016/S0022-3476(78)80448-X
  9. Unkila-Kallio L, Kallio MJ, Eskola J, Paltola H. Serum C-reactive protein, erythrocyte sedimentation rate, and white blood cell count in acute hematogenous osteomyelitis of children. Pediatrics 1994;93:59-62
  10. Kluger MJ. Fever. Pediatrics 1980;66:720-4
  11. Kushner I, Gewurz H, Benson MD. C-reactive protein and the acute-phase response. J Lab Clin Med 1981;97:739-49
  12. Guven H, Altintop L, Baydin A, Esen S, Aygun D, Hokelek M, et al. Diagnostic value of procalcitonin levels as an early indicator of sepsis. Am J Emerg Med 2002;20:202-6 https://doi.org/10.1053/ajem.2002.33005
  13. Gendrel D, Bohuon C. Procalcitonin as a marker of bacterial infection. Pediatr Infect Dis J 2000;19:679-87 https://doi.org/10.1097/00006454-200008000-00001
  14. Hatherill M, Tibby SM, Sykes K, Turner C, Murdoch IA. Diagnostic markers of infection: comparison of procalcitonin with C reactive protein and leucocyte count. Arch Dis Child 1999;81:417-21 https://doi.org/10.1136/adc.81.5.417
  15. Chenillot O, Henny J, Steinmetz J, Herbeth B, Wagner C, Siest G. High sensitivity C-reactive protein: biological variations and reference limits. Clin Chem Lab Med 2000;38:1003-11 https://doi.org/10.1515/CCLM.2000.149
  16. Lee HL, Chai SE. Acute pyelonephritis in adult: characteristics of bacteriologic study and excretory urolographic studies. Korean J Urol 1993;34:984-90