Table 1 Characteristics of critically ill patients sampled for peritoneal and ascitic fluids

Variable

N = 26

N = 10

Demographic data

Sex (Male)

19 (73)

7 (70)

Age (years)

58 [52–77]

59 [46–66]

Body mass index (kg/m²)

26 [23–32]

28 [25–33]

Mac Cabe 1/2/3

10 (38)–14 (54)–2 (8)

1 (10)–7 (70)–2 (20)

Knauss A/B/C

3 (11)–14 (54)–9(35)

0–5 (50)–5 (50)

Comorbidities

Cardio-vascular disease

5 (19)

1 (10)

Chronic obstructive pulmonary disease

3 (11)

1 (10)

Diabetes

9 (35)

5 (50)

Chronic kidney disease

5 (19)

3 (30)

Immunosuppression condition

  Organ or bone-marrow transplantation

  Solid tumour (active)

  Haematological malignancy

  Systemic inflammatory disease

12 (46)

2 (16)

7 (58)

1 (8)

2 (16)

4 (40)

4 (100)

Cirrhosis A/B/C

0

3 (30)–3 (30)–4 (40)

Intra-abdominal infection

Secondary peritonitis

26 (100)

NA

Hospital-acquired

  Post-operative peritonitis

  Community-acquired

21 (81)

13 (50)

5 (19)

NA

Anatomical source

NA

  Stomach

  Biliary tract

  Pancreas

  Small bowel

  Colon

4 (15)

2 (8)

2 (8)

6 (23)

12 (46)

NA

ICU data

Type of ICU admission

  Medical

  Scheduled surgery

  Urgent surgery

3 (11)

3 (11)

20 (78)

4 (40)

6 (60)

0

Admission SAPS II score

46 [31–57]

49 [47–56]

IAI SOFA score

6 [4–]

NA

Septic shock (Sepsis-3 definition)

14 (54)

2 (20)

Norepinephrine infusion

  Norepinephrine duration (days)

25 (96)

2 [1–3]

5 (50)

4 [4–9]

Invasive mechanical ventilation (> 48 h)

  Duration of invasive mechanical ventilation (days)

8 (31)

3.4 ± 6.3

4 (40)

9.8 ± 5.6

Renal failure (according to KDIGO—AKI definition)

Renal replacement therapy

17 (65)

4 (15)

7 (70)

2 (20)

ICU length of stay (days)

7 [5–12]

10 [5–19]

ICU mortality

5 (19)

3 (30)