Diagnostic and prognostic laboratory criteria for the development of sepsis in purulent-inflammatory diseases of soft tissues

Objective. Identification of laboratory parameters that are used in routine practice and can serve as diagnostic and prognostic criteria for the development of sepsis and its outcomes in patients with purulent-inflammatory diseases of soft tissues.

Materials and methods. The study included 48 patients with purulent-inflammatory diseases of soft tissues. Recorded the occurrence of such clinical events as the development of sepsis or septic shock, intensive therapy, death or recovery and discharge from the hospital. For the diagnosis of sepsis, a SOFA (Sepsis-related organ failure assessment score) ³ 2 points was used. Patients were divided into subgroups according to the number of points according to the SOFA scale, intensive care and depending on the outcome of the disease: Subgroup 1 – 26 patients with sepsis (SOFA ³ 2 points) and 22 patients with systemic inflammatory response syndrome (SIRS) and SOFA <2 points; 2nd subgroup – 12 people who underwent intensive therapy and 36 people without it; 3rd subgroup – 7 patients with a fatal outcome and 41 patients with a favorable outcome.

Results. In patients with sepsis, albumin concentration was 24,07 g / l in median versus 34,65 g / l in the control group of patients with SOFA <2 points (p <0,01); glucose -7,82 mmol / l and 5,15 mmol / l (p <0,01); sodium concentration of 133 mmol / li 139 mmol / l (p <0,01). The values of the international normalized ratio (INR) amounted to a median of 1,29 and 1,04 (p <0,01); activated partial thromboplastin time -36,20 seconds and 31,50 seconds (p <0,01). In the subgroup of patients for whom intensive therapy was required, the concentration of albumin was 22,34 g / l by median versus 30,10 g / l (p <0,01); urea – 15,50 mmol / l versus 6,00 mmol / l (p <0,05), glucose – 9,61 mmol / l against 5,80 mmol / l (p <0,05), lactate dehydrogenase-644,00 U / l and 426,00 U / l (p <0,05); INR – 1,35 against 1,05 (p <0,05). The aver-age total protein concentration is 47,80 g / l versus 57,90 g / l (p <0,01). The average albumin is 22,34 g / l versus 28,50 g / l (p <0,05). The glucose concentration among patients with a fatal outcome was 12,00 mmol / l in median versus 5,95 mmol / l (p <0,01); urea – 23,22 mmol / l versus 6,00 mmol / l (p <0,01). The incidence of lethal disease was statistically significantly higher in patients with a total protein level of less than 52 g / l 5,96 times (RR = 5,96, 95% CI 1,32 – 26,89), glucose more than 11 mmol / l – 7,00 times (OR = 7,00, 95% CI 1,25 – 39,15), urea more than 20 mmol / l – 7,05 times (RR = 7,05, 95% CI 2,00 – 24,85).

Conclusion. Routine laboratory indicators as the level of total protein, albumin, glucose, sodium and urea, as well as indicators of the blood coagulation system (INR and APTT), can serve as diagnostic and prognostic criteria for the development of sepsis and its outcomes in patients with purulentinflammatory diseases. soft tissue.

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