<i>Streptococcus pneumoniae</i> as a cause of lactational mastitis: a case report

Hald, Sara Vester; Schønheyder, Henrik Carl

doi:10.1002/ccr3.1488

Cited by 5 publications

(9 citation statements)

References 8 publications

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“…Two cases7 8 showed that an infected child could cause S. pneumoniae mastitis in the mother. Four other cases9–12 suggested an association with S. pneumoniae mastitis, even if the child was asymptomatic. The exact mechanism underlying this infection remains unclear; however, both host and pathogen factors are thought to play a key role 16.…”

Section: Discussionmentioning

confidence: 98%

“…The mean age was 33 years, all seven cases (100%) had immunocompetent status, and both the right and left sides were affected. All seven cases (100%) had a fever over 38°C at the initial presentation, two of seven cases (29%)11 presented with bacteraemia and were associated with septic shock. All seven cases (100%) had a good clinical course with prompt recovery after appropriate antimicrobial therapy.…”

Section: Discussionmentioning

confidence: 99%

“…Pneumococcal non-lactational mastitis has rarely been reported in patients with underlying diseases, such as systemic lupus erythematosus; however, reports of pneumococcal lactational mastitis are scarce, with only six cases reported in the English literature between 1995 and 2021 (table 1). 7–12…”

Section: Discussionmentioning

confidence: 99%

“…Paediatric pneumococcal vaccines were administered with PCV-7 in one case10 and PCV-13 in two cases 12. The serotypes of S. pneumoniae detected in five cases7 10–12 were 6 B, 19A, 19F, 11 and 15C. In three cases,7 10 11 the infection could have been prevented by PCV-13 vaccination; two others12 were not included in the PCV-13.…”

Section: Discussionmentioning

confidence: 99%

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Pneumococcal lactational mastitis in a healthy woman

et al. 2022

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We report a case of lactational mastitis complicated byStreptococcus pneumoniaebacteraemia in a breast feeding, healthy woman in her 20s. Numerous investigations showed that mastitis was the probable source ofS. pneumoniaebacteraemia. WhileS. pneumoniaeis known to cause non-lactational mastitis in patients with underlying diseases, such as systemic lupus erythematosus, reports of lactating mastitis in healthy individuals are scarce, with only six cases reported in the scientific literature published in English since 1995. Similar to previous reports, our patient had a good clinical course with antimicrobial therapy, and the infection was presumably transmitted from the asymptomatic child to the mother. Although the exact mechanisms that establish transmission from a child remain unclear, both host and pathogen factors, such as stagnant milk or bacterial virulence factors, are thought to play a key role. Caution should be exercised because serotypes not currently covered by pneumococcal vaccines are emerging.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Pneumococcal lactational mastitis in a healthy woman

et al. 2022

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“…Debemos destacar dos casos de mastitis lactacional y uno de fascitis necrotizante. La mastitis lactacional neumocócica es excepcional, habiéndose descrito 5 casos desde 1995 [13][14][15]. En todos ellos, S. pneumoniae se aisló en los cultivos de leche materna, y su presencia se atribuyó a la transmisión desde el niño en el momento del amamantamiento.…”

Section: Materials Y Métodosunclassified

Skin and soft tissue infection caused by Streptococcus pneumoniae: report of 15 cases

Madrid¹,

Rodrigo²,

Tena³

2021

Rev Esp Quimioter

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Background. Streptococcus pneumoniae is a very rare cause of skin and soft tissue infections (SSTI). The aim of this study was to determine the clinical and microbiological characteristics of these infections. Material and methods. The medical records of patients with SSTIs due to S. pneumoniae diagnosed at the University Hospital of Guadalajara between January 2012 and December 2020 were retrospectively reviewed. Microbiological identification was performed using conventional procedures. Antimicrobial sensitivity was performed using the MicroScan WalkAway-96 plus automatic system and E-test strips following the recommendations of the European Committee on Antimicrobial Susceptibility Testing (EUCAST). Results. Fifteen cases of SSTIs were diagnosed. 73,3% of the cases presented underlying diseases, neoplasias being the most frequent. 60% of the cases presented predisposing factors, immunosuppression being the most common. The clinical presentations were: abscesses in different locations, ulcers, surgical wounds, lactational mastitis and necrotizing fasciitis. Polymicrobial infections were detected in 73.3% and the etiology was nosocomial in 6.6%. The clinical course was favorable in 90.9% of the cases. The antibiotics with the highest percentages of sensitivity against S. pneumoniae were cefotaxime, levofloxacin, vancomycin, linezolid and rifampicin. Conclusions. S. pneumoniae should be kept in mind as a possible causative agent of SSTIs, especially in patients with neoplasias and immunosuppression. Its involvement in infections such as lactational mastitis and necrotizing fasciitis should be highlighted. The clinical evolution is favorable in most patients, but it is important to pay special attention to cases of necrotizing fasciitis due to the severity of these infections.

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Pneumococcal Mastitis With Septicemia in a Pregnant Woman With Systemic Lupus Erythematosus

Kano

Takamatsu

Honda

et al. 2020

Infect Dis Clin Pract

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Purulent mastitis due to Streptococcus pneumoniae is extremely rare and is thought to be transmitted to the mother from the respiratory tract of the child during breastfeeding. We report herein a case of a 37-year-old, pregnant, Japanese patient in her third trimester with systemic lupus erythematosus (SLE) who presented with bacteremic pneumococcal mastitis despite the absence of lactation. Previous studies suggested that a marked susceptibility to S. pneumoniae among patients with SLE may play an important role in the development of severe infections due to this organism. Clinicians should be aware of this susceptibility and the importance of pneumococcal vaccination for patients with SLE.

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Streptococcus pneumoniae as a cause of lactational mastitis: a case report

Cited by 5 publications

References 8 publications

Pneumococcal lactational mastitis in a healthy woman

Pneumococcal lactational mastitis in a healthy woman

Skin and soft tissue infection caused by Streptococcus pneumoniae: report of 15 cases

Pneumococcal Mastitis With Septicemia in a Pregnant Woman With Systemic Lupus Erythematosus

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