Table 1 Characteristics of the studies included in the meta-analysis.

From: The Efficacy of Prophylactic Antibiotics on Post-Stroke Infections: An Updated Systematic Review and Meta-Analysis

Author (publication year)

Inclusion criteria

Exclusion Criteria

Intervention

Outcomes

Inclusion NIHSS Treatment vs Control

Sample size

Infections Treatment vs Control

Pneumonia Treatment vs Control

Urinary tract infections Treatment vs Control

Mortality Treatment vs Control

Jadad Score

De Falco et al.9

Ischemic stroke within 12 hours

NA

Penicillin intramuscularly

Infectious complications, case fatality, functional outcome (BI, CNS)

CNS score: Mean (SD), 4.5 (2.3) vs 4.1 (2.1)

38/42

4/30 vs 8/30

NA

NA

4/38 vs 7/42

2

Chamorro et al.10

Stroke within 24 hours; age >18 y; NIHSS >score 4

Infection <3 months; T >37. 7 °C; allergy to fluoroquinolones; epilepsy; seizures; serum creatinine >2.5 mg/dL, antibiotics user; immunosuppressants therapy <3 months

Intravenous 500 mg/100 mL levofloxacin for 3 days, started within 24 h of stroke onset

Early infection (within 7 days), mortality, favorable outcome on day 90 (mRS <2, NIHSS <2, BI 95 or 100)

Median (interquartile), 14 (7–19) vs 11 (7–18)

67/69

11/67 vs 13/69

NA

NA

16/67 vs 9/69

5

Lampl et al.11

Ischemic stroke within 6 to 24 hours; age >18 y; NIHSS score >5

Hemorrhagic stroke; other disease; pre-existing neurologic disability; tetracycline allergic; renal failure; pre-existing infectious disease; swallowing difficulties

Orally minocycline 200 mg/d for 5 days, started within 6–24 h of stroke onset

NIHSS on day 90; NIHSS, mRS, BI, death on day 7, 30, 90

Mean (SD), 7.6 (3.8) vs 7.5 (3.2)

74/77

NA

NA

NA

5/74 vs 9/77

2

Harms et al.12

Ischemic stroke within 9 to 36 hours; aged ≥18 y; NIHSS score ≥11 in MCA territory

Hemorrhagic stroke; infections; antibiotics therapy <24 h; contraindications against moxifloxacin; immunosuppressant treatment

Intravenous 400 mg/d moxifloxacin for 5d, started within 36 h of stroke of onset

Infection rate on 11th day, bacterial spectrum, moxifloxacin resistance, body temperature, CRP, survival and functional outcome (BI) on day 180

Median (interquartile), 17 (12–21) vs 15 (12–25)

39/40

6/39 vs 13/40

3/39 vs 8/40

3/39 vs 5/40

1/39 vs 3/40

5

Schwarz et al.13

Ischemic stroke within 24 hours; age >18 y; NIHSS score >5

Hemorrhagic stroke; infections; renal insufficiency; penicillin or sulbactam allergic; immunosuppressant treatment; pregnancy

Intravenous mezlocillin 6 g/d plus sulbactam 1 g/d for 4 d, started within 24 h of stroke onset

mRS on day 90, infection, daily temperature

Median (interquartile), 17 (8–28) vs 15 (5–27)

30/30

15/30 vs 27/30

5/30 vs 7/30

8/30 vs 18/30

0/30 vs 0/30

2

Westendorp et al.14

Stroke within 24 hours; aged ≥18 y; NIHSS score ≥1

Infections; antibiotics therapy <24 h; pregnancy; penicillin or cephalosporins allergic; subarachnoid hemorrhage;

Intravenous 2 g/d ceftriaxone for 4d, started within 24 h of stroke of onset

mRS on 3 months, mortality, infection

Median (interquartile), 5 (3–9) vs 5 (3–9)

1268/1270

130/1268 vs 218/1270

71/1268 vs 88/1270

46/1268 vs 127/1270

131/1268 vs 136/1270

3

Kalra et al.15

Stroke within 48 hours and with dysphagia; aged >18 y

Allergic to antibiotics; infections; preexisting dysphagia; pyrexia; pregnancy; imminent death

amoxicillin or co-amoxiclav, plus clarithromycin for 7 d, started within 24 h of stroke of onset

Post-stroke pneumonia and mortality on day 14 and 90, mRS <2 on day 90, adverse events

Median (interquartile), 15 (9–20) vs 14 (9–20)

615/602

123/615 vs 136/602

101/615 vs 91/602

15/615 vs 39/602

184/615 vs 158/602

4

  1. NA, not available; BI, Barthel Index; CNS, central nervous system; SD, standard deviation; NIHSS, National Institute of Health Stroke Scale.
  2. T, temperature; mRS, modified Rankin Score; MCA, middle cerebral artery; CRP, C-reactive protein.