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Table 5 Diagnosis & antibiotic therapy

From: Epidemiological analysis of intra-abdominal infections in Italy from the Italian register of complicated intra-abdominal infections—the IRIS study: a prospective observational nationwide study

Diagnosis

Total

Antimicrobial therapy in previous days

Duration of empiric antimicrobial therapy (days)

Empiric antibiotic

%

Appendicitis

1296

Yes 60 (4.6%)

6.4 ± 4.4

Amicasil

0.25

    

Amoxicillin/clavulanate

30.6

    

Cefepime

1

    

Ceftazidime

0.5

    

Ceftriaxone

3.5

    

Ciprofloxacin

0.75

    

Mefoxin

0.5

    

Meropenem

1

    

Moxifloxacin

1.3

    

Multiple Antibiotics

18.1

    

Piperacillin/tazobactam

7.1

    

Azitromicine

0.25

    

Cefazolina

0.25

    

Cefoxitina

1.8

    

Clindamicina

0.25

    

Tigeciclina

0.5

  

No 1236 (95.4%)

   

Bowel occlusion

166

Yes 12 (7.3%)

7.2 ± 3.0

Amoxicillin/clavulanate

30.6

    

Ceftazidime

1.02

    

Ceftriaxone

1.02

    

Ciprofloxacin

1.02

    

Meropenem

1.02

    

Multiple Antibiotics

40.8

    

Piperacillin/tazobactam

23.5

    

Tigeciclina

1.02

  

No 154 (92.7%)

   

Cholecystitis

683

Yes 68 (9.9%)

7.4 ± 8.5

Amoxicillin/clavulanate

30.8

    

Ampicillin Sulbactam

0.7

    

Cefepime

1.05

    

Ceftazidime

0.7

    

Ceftriaxone

21.9

    

Ciprofloxacin

2.4

    

Levofloxacin

0.35

    

Meropenem

0.7

    

Metronidazole

0.35

    

Multiple Antibiotics

18.05

    

Piperacillin/tazobactam

22.6

    

Cefoxitina

0.35

  

No 615 (90.1%)

   

Colonic perforation and diverticulitis

1601

Yes 127 (7.9%)

12.9 ± 22

Amoxicillin/clavulanate

6.35

    

Ampicillin Sulbactam

0.35

    

Ceftriaxone

0.7

    

Ciprofloxacin

0.5

    

Levofloxacin

0.5

    

Meropenem

1.4

    

Metronidazole

0.2

    

Multiple Antibiotics

73.7

    

Piperacillin/tazobactam

13.3

    

Vancomicina

0.35

    

Zerbaxa

0.2

    

Cefazolina

0.35

    

Tigeciclina

2.2

  

No 1474 (92.1%)

   

Complicated abdominal wall hernia

135

Yes 2 (1.5%)

5.9 ± 3.4

Amoxicillin/clavulanate

51

    

Cefepime

6.5

    

Ceftriaxone

3.3

    

Ciprofloxacin

1.6

    

Levofloxacin

1.6

    

Multiple Antibiotics

29.5

    

Piperacillin/tazobactam

4.9

    

Cefazolina

1.6

  

No 133 (98.5%)

   

Gastro duodenal perforations

361

Yes 20 (94.5%)

9.1 ± 6.5

Amoxicillin/clavulanate

5.8

    

Caspofungina

1.2

    

Ceftriaxone

0.6

    

Multiple Antibiotics

70

    

Piperacillin/tazobactam

19.6

    

Vancomicina

0.6

    

Cefoxitina

0.6

    

Tigeciclina

1.7

  

No 341 (5.5%)

   

Gynaecological emergencies

22

No 22 (100%)

11.4 ± 6.8

Multiple Antibiotics

100

Intestinal ischemia

39

Yes 9 (77%)

10.5 ± 5.4

Amoxicillin/clavulanate

15

    

Ampicillin Sulbactam

3

    

Ceftazidime

3

    

Meropenem

3

    

Multiple Antibiotics

39.3

    

Piperacillin/tazobactam

24.2

    

Tigeciclina

12

  

No 30 (23%)

   

Pancreatitis

57

Yes 5 (91.2%)

8.8 ± 7.3

Amoxicillin/clavulanate

23.8

    

Ceftriaxone

9.5

    

Meropenem

4.7

    

Multiple Antibiotics

33.3

    

Piperacillin/tazobactam

28.6

  

No 52 (8.8%)

   

Small bowel perforation

168

Yes 3 (1.8%)

11.7 ± 8.9

Amoxicillin/clavulanate

60

    

Ceftriaxone

5

    

Multiple Antibiotics

20

    

Piperacillin/tazobactam

5

    

Tigeciclina

10

  

No 165 (98.2%)

   
  1. Data are presented as actual number (n), mean ± Standard deviation or percentage () where appropriate