Related Experiment Video
Updated: Jan 24, 2026

05:39
Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
589
Vasculitis in Juvenile-Onset Systemic Lupus Erythematosus
Eve M D Smith1,2, Hanna Lythgoe3, Christian M Hedrich1,2
1Department of Women and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom.
Frontiers in Pediatrics
|May 31, 2019
Summary
Juvenile-onset systemic lupus erythematosus (JSLE) can involve vasculitis, affecting various organs. Early diagnosis and treatment are crucial to prevent severe organ damage in children with JSLE.
Area of Science:
- Pediatric Rheumatology
- Autoimmune Diseases
- Vasculitis
Background:
- Juvenile-onset systemic lupus erythematosus (JSLE) is a rare, multisystem autoimmune disease with diverse clinical presentations.
- Vasculitis, inflammation of blood vessels, is a potential manifestation of JSLE, occurring more frequently in the skin than internally.
- The incidence, prevalence, and diagnostic challenges of vasculitis in JSLE remain incompletely understood.
Purpose of the Study:
- To review the presentation, diagnosis, management, and outcomes of vasculitis in JSLE.
- To highlight the critical need for prompt recognition and treatment of vasculitis in JSLE.
- To identify gaps in the current evidence base regarding vasculitis in JSLE.
Main Methods:
- Literature review focusing on vasculitis in JSLE.
- Analysis of clinical and serological manifestations.
- Discussion of diagnostic strategies, including biopsy.
- Examination of management approaches and patient outcomes.
Main Results:
- Vasculitis in JSLE can affect multiple organs, including the central nervous system, lungs, kidneys, and heart.
- Symptoms of vasculitis may be non-specific and overlap with other JSLE features.
- Visceral vasculitis is associated with life-threatening complications and permanent organ damage if not promptly treated.
Conclusions:
- Vasculitis is a significant concern in JSLE, requiring careful diagnostic consideration.
- Timely diagnosis and intervention are essential to mitigate severe outcomes and organ damage in pediatric patients.
- Further research is needed to address current evidence gaps in the understanding and management of vasculitis in JSLE.
Related Concept Videos
Second Order systems II
396
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
396
First Order Systems
411
First-order systems, such as RC circuits, are foundational in understanding dynamic systems due to their straightforward input-output relationship. Analyzing their responses to different input functions under zero initial conditions reveals significant insights into system behavior.
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
411
Second Order systems I
581
A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
By reinterpreting the system, one can derive the closed-loop transfer function, which...
581
Classification of Systems-I
555
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
555
Classification of Systems-II
463
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
463
Mechanical Systems
609
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
609

