Related Experiment Video
Updated: Jan 27, 2026

08:39
Reduced Complications after Arterial Reconnection in a Rat Model of Orthotopic Liver Transplantation
Published on: November 7, 2020
8.4K
Multi-drug-resistant Enterococcus faecium bacteraemia in a liver transplant recipient
Nathan A Summers1, John Gharbin2, Rachel Friedman-Moraco1
1Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, GA, USA.
JMM Case Reports
|March 14, 2019
Summary
A rare case of extensively drug-resistant Enterococcus faecium caused a liver abscess in an immunocompromised patient. This highlights the growing threat of multidrug-resistant organisms and the need for novel therapeutic strategies.
Area of Science:
- Infectious Diseases
- Microbiology
- Clinical Medicine
Background:
- Enterococcus faecium is a common gut bacterium, but can cause severe infections in vulnerable individuals.
- Immunocompromised patients, such as transplant recipients, are at higher risk for serious E. faecium infections.
- Antimicrobial resistance in E. faecium poses a significant global health challenge.
Observation:
- A liver transplant recipient with diabetes developed recurrent liver abscesses and fever.
- Blood cultures revealed vancomycin-resistant E. faecium (VRE) with resistance to multiple antibiotics, including ampicillin, penicillin, vancomycin, daptomycin, and linezolid.
- Initial treatment with chloramphenicol was ineffective due to non-susceptibility, and tigecycline was administered.
Findings:
- The identified E. faecium strain exhibited pan-resistance to commonly used antimicrobial agents.
- The patient's clinical presentation was complicated by multidrug resistance, limiting treatment options.
- Despite interventions, the patient opted for hospice care.
Implications:
- This case underscores the critical need for surveillance and development of new treatments for extensively drug-resistant (XDR) Gram-positive pathogens.
- Effective management of XDR E. faecium infections requires a thorough understanding of resistance mechanisms and alternative therapeutic approaches.
- The rise of XDR organisms necessitates a global strategy to combat antimicrobial resistance and improve patient outcomes.
Related Concept Videos
Resistivity
4.5K
When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
4.5K
Resistance
5.9K
When a current moves through any conductor, the conductor causes some level of difficulty for the current to flow. The measure of that difficulty is known as the resistance of the material and is represented by R. Every material has its own resistance. In the case of conductors, heat is emitted whenever a current passes through them. Resistance depends on the resistivity of the material. Resistivity is a characteristic of the material used to fabricate electrical components, whereas the...
5.9K
Resistance and Conductance
508
A conductor's DC resistance at a given temperature is influenced by its resistivity, length, and cross-sectional area. Resistivity is an inherent property of the conductor material, with annealed copper serving as the international standard for measurement. For instance, the resistivity of hard-drawn aluminum at 20 degrees Celsius is 61% of the standard conductivity of annealed copper.
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...
508
Equivalent Resistance
976
In circuit analysis, situations often arise where resistors are neither in series nor parallel configurations. To tackle such scenarios, three-terminal equivalent networks like the wye (Y) (Figure 1 (a)) or tee (T) and delta (Δ) (Figure 1 (b)) or pi (π) networks come into play. These networks offer versatile solutions and are frequently encountered in various applications, including three-phase electrical systems, electrical filters, and matching networks.
976
Multi-input and Multi-variable systems
411
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
In the absence of...
411
Vascular Resistance
10.7K
Vascular resistance is a critical concept in understanding blood flow dynamics in the circulatory system. It refers to the resistance that blood encounters as it flows through the blood vessels. This resistance is a key factor in determining blood pressure and cardiac workload.
The primary determinants of vascular resistance are vessel diameter, blood viscosity, and vessel length. Among these, vessel diameter plays the most significant role due to the fourth power relationship described by...
The primary determinants of vascular resistance are vessel diameter, blood viscosity, and vessel length. Among these, vessel diameter plays the most significant role due to the fourth power relationship described by...
10.7K

