Related Experiment Videos

Stenotrophomonas maltophilia: emerging disease patterns and challenges for treatment

Iain J Abbott1, Monica A Slavin, John D Turnidge

  • 1Department of Infectious Diseases, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. iainabbott@gmail.com

Insights

Stenotrophomonas maltophilia causes opportunistic infections, especially in immunocompromised individuals. This review covers its classification, clinical aspects, and management, including antibiotic resistance and prevention strategies.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Stenotrophomonas maltophilia is a ubiquitous bacterium causing opportunistic infections.
  • It poses a significant threat to immunocompromised patients, leading to severe illnesses like bloodstream infections and pneumonia.

Purpose of the Study:

  • To provide a comprehensive overview of Stenotrophomonas maltophilia.
  • To discuss its classification, microbiology, clinical presentation, outcomes, and management.
  • To explore antibiotic resistance, treatment options, and prevention strategies.

Main Methods:

  • Literature review of classification and microbiology.
  • Analysis of clinical presentation and outcomes.
  • Discussion of management strategies, including antibiotic therapies and infection control.

Main Results:

  • Identified virulence mechanisms and genetic basis of antibiotic resistance.
  • Highlighted the lack of standardized antibiotic sensitivity reporting.
  • Reviewed traditional and newer treatment options, including combination therapies.

Conclusions:

  • Stenotrophomonas maltophilia infections require careful management in at-risk populations.
  • Further research is needed on standardized antibiotic sensitivity reporting.
  • Effective infection control measures are crucial in healthcare facilities to prevent transmission.

Related Concept Videos

Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
Rapid Identification of Pathogens01:25

Rapid Identification of Pathogens

MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...