Case report of a 6-year-old girl with Mycoplasma hominis ventriculoperitoneal shunt infection

[Pneumonia due to Mycoplasma hominis in a Full-Term Newborn - A Case Report with Literature Review]

Mycoplasma ssp can colonize various human tissues and can cause infections. Their lack of a cell wall makes them difficult to cultivate and to treat as they are resistant to beta-lactam antibiotics. Mycoplasma hominis and ureaplasma urealyticum can colonize the genital tract. While colonization in healthy adults is usually asymptomatic, they can cause neonatal infections during pregnancy through transmission to the fetus or during birth and lead to increased morbidity and mortality, especially in premature infants. However, in full-term neonates with high colonization rates, the pathogenic role and its treatment is controversial. In the following, we present a case of neonatal pneumonia caused by M. hominis in a full-term neonate, which was successfully treated with clindamycin. Mycoplasma spp. can cause symptomatic infections in neonates in individual cases and should be considered as potential pathogens, especially in the case of a protracted course.

A Case Report of Mycoplasma hominis Subdural Empyema Following Decompressive Craniotomy, and a Review of Central Nervous System Mycoplasma hominis Infections

Background

Mycoplasma hominis is a small cell-wall-free organism, part of the normal microbiota of the genitourinary tract. It is rarely involved in extragenital infections, mainly joint, surgical-site, and respiratory infections.

Methods

We describe a case of M. hominis subdural empyema and lower limb surgical site infections, following decompressive craniotomy, after traumatic brain and extremities injury. In addition, a literature review of 34 cases M. hominis CNS infections was done.

Results

Our case depicts a 25-years old patient who developed subdural empyema and surgical site infections in his cranium and fibula. Both sites were cultured, and small pinpoint colonies grew on blood agar. MALDI-TOF MS identified M. hominis. Simultaneously 16S-rDNA PCR from CSF detected M. hominis. Antimicrobial treatment was switched to doxycycline with improvement. Literature review revealed 21 adults and 13 pediatric cases of M. hominis CNS infection. Risk factors in adults were head trauma, neurosurgery, or post-partum period.

Conclusions

Based upon the literature reviewed, we postulate that adult patients with head trauma or neurosurgical procedure, rarely are infected either through direct contamination during the trauma, or by undergoing urgent, urinary catheterization, and may experience distant infection due to translocation of M. hominis into the bloodstream. In such cases diagnosis is delayed due to difficulties in growing and identifying the bacteria. Empiric antimicrobials are usually not effective against mycoplasmas. These factors contributed to the mortality in adult cases (15%). Our rare case highlights the necessity of combining classical microbiology routines with advanced molecular techniques to establish a diagnosis in complicated cases.

Mycoplasma hominis: An under recognized pathogen

Mycoplasma hominis, a commensal of the genital tract, is a potential underestimated pathogen causing both genitourinary and extragenital infections including neonatal infections. Septic arthritis, prosthetic joint infection, central nervous system (CNS) infections, infective endocarditis and abscess formation are common extragenital infections associated mainly with immunocompromised patients. Mycoplasma hominis lipoproteins play an important role in pathogenicity and directly interact with the host immune system. Polymerase chain reaction (PCR) is the mainstay of diagnosis. Increasing resistance to tetracyclines and quinolones which are used for treatment, is a matter of global concern. We reviewed PubMed literature and Google search engine on the recent developments of association of Mycoplasma hominis with various diseases, pathogenesis, diagnosis and treatment.

Iatrogenic Ventriculitis Due to Mycoplasma Hominis: A Case Report and Review of the Literature

BACKGROUND Mycoplasma hominis, which rarely causes infection after neurosurgical procedures, is a small free-living organism, belonging to the genus Mycoplasma. M. hominis lacks a rigid cell wall and cannot be clearly visualized by routine light microscopy. Thus, it is challenging to diagnose infections caused by this pathogen. Here, we report a case of Mycoplasma hominis causing iatrogenic ventriculitis secondary to extraventricular drain. CASE REPORT A 25-year-old man who was a victim of a road traffic accident developed M. hominis ventriculitis secondary to extraventricular drain. Despite a delay in the diagnosis due to the difficulty of identifying M. hominis, the patient was successfully treated with intravenous ciprofloxacin 400 mg for 14 days. CONCLUSIONS The findings of this case report, coupled with a thorough review of the literature, demonstrate the pathogenic potential of M. hominis. Particularly in developing countries, in which laboratories may have limited access to advanced technologies, such rare infectious diseases remain major diagnostic challenges.

An Update in Antimicrobial Therapies and Infection Prevention in Pediatric Lung Transplant Recipients

Lung transplantation can offer life-prolonging therapy to children with otherwise terminal end-stage lung disease. However, infectious complications, like those experienced by their adult counterparts, are a significant cause of morbidity and mortality. These include bacteria, viruses, and fungi that infect the patient pretransplant and those that may be acquired from the donor or by the recipient in the months to years posttransplant. An understanding of the approach to the management of each potential infecting organism is required to ensure optimal outcomes. In particular, emphasis on aggressive preoperative management of infections in pediatric patients with cystic fibrosis is important. These include multidrug-resistant Gram-negative bacteria, fungi, and Mycobacterium abscessus, the posttransplant outcome of which depends on optimal pretransplant management, including vaccination and other preventive, antibiotic-sparing strategies. Similarly, increasing the transplant donor pool to meet rising transplant demands is an issue of critical importance. Expanded-criteria donors-those at increased risk of blood-borne viruses in particular-are increasingly being considered and transplants undertaken to meet the rising demand. There is growing evidence in the adult pool that these transplants are safe and associated with comparable outcomes. Pediatric transplanters are therefore likely to be presented with increased-risk donors for their patients. Finally, numerous novel antibiotic-sparing therapeutic approaches are on the horizon to help combat infections that currently compromise transplant outcomes.