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Maternal and neonatal group B streptococcus colonisation: A systematic review and the meta-analysis of matched-pair studies

Lee KW, Yap SF, Murdan S, Zainudin Z, Abdul Hamid H, Emamjomeh M, et al.

Acta Paediatr, 2024 May;113(5):892-911.
PMID: 38351491 DOI: 10.1111/apa.17152

AIM: To determine the prevalence of group B Streptococcus (GBS) carriage among parturient women and neonates, and the relative risk of vertical transmission, the relative risk of early and late-onset GBS and the pooled incidence of early-late-onset GBS infection.
METHODS: A systematic search of relevant cohort studies from three electronic databases to identify all relevant studies published up to 7 November 2022. The review was conducted in accordance with PRISMA guidelines. Estimates were pooled using random-effects meta-analyses.
RESULTS: A total of 54 articles with 355 787 matched pairs of parturient women and neonates from 30 countries were included in the analysis. The pooled prevalence of GBS colonisation was 17.1% among the pregnant women and 1.0% among neonates. The pooled prevalence of vertical transmission of GBS was 4.5% and the pooled relative risk of GBS colonisation of neonates born to mothers with GBS was 9.9.
CONCLUSION: We support the implementation of targeted intrapartum antibiotic prophylaxis for all women who are positive for GBS as well as women with risks factors for early onset GBS in their infants regardless of their GBS colonisation status.

Matched MeSH terms: Antibiotic Prophylaxis/adverse effects
Red man syndrome during administration of prophylactic antibiotic against infective endocarditis

Ngeow WC, Chai WL, Moody AB

J Ir Dent Assoc, 2000;46(3):92-4.
PMID: 11323942

Red man syndrome (RMS) is the occurrence flushing, pruritus, chest pain, muscle spasm or hypotension during vancomycin infusion. It usually happens as a result of rapid infusion of the drug but may also occur after slow administration. The frequency and severity of this phenomenon diminish with repeated administration of vancomycin. A case is presented whereby RMS occurred while prophylactic antibiotic against infective endocarditis was administered.

Matched MeSH terms: Antibiotic Prophylaxis/adverse effects*
Fulltext Long-term impact of oral surgery with or without amoxicillin on the oral microbiome-A prospective cohort study

Menon RK, Gomez A, Brandt BW, Leung YY, Gopinath D, Watt RM, et al.

Sci Rep, 2019 12 10;9(1):18761.
PMID: 31822712 DOI: 10.1038/s41598-019-55056-3

Routine postoperative antibiotic prophylaxis is not recommended for third molar extractions. However, amoxicillin still continues to be used customarily in several clinical practices worldwide to prevent infections. A prospective cohort study was conducted in cohorts who underwent third molar extractions with (group EA, n = 20) or without (group E, n = 20) amoxicillin (250 mg three times daily for 5 days). Further, a control group without amoxicillin and extractions (group C, n = 17) was included. Salivary samples were collected at baseline, 1-, 2-, 3-, 4-weeks and 3 months to assess the bacterial shift and antibiotic resistance gene changes employing 16S rRNA gene sequencing (Illumina-Miseq) and quantitative polymerase chain reaction. A further 6-month follow-up was performed for groups E and EA. Seven operational taxonomic units reported a significant change from baseline to 3 months for group EA (adjusted p 0.05). In conclusion, the salivary microbiome is resilient to an antibiotic challenge by a low-dose regimen of amoxicillin. Further studies evaluating the effect of routinely used higher dose regimens of amoxicillin on gram-negative bacteria and antibiotic resistance genes are warranted.

Matched MeSH terms: Antibiotic Prophylaxis/adverse effects*

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