Related Experiment Video
Updated: Feb 14, 2026

03:26
Author Spotlight: Advancements and Challenges in Surgical Treatments for Postamputation Pain
Published on: March 8, 2024
3.6K
Controlling Hypertension After Severe Cerebrovascular Event (CHASE): study protocol for a randomized controlled trial
Fang Yuan1, Fang Yang1, Changhu Xue2
1Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
Trials
|February 23, 2018
Summary
This study investigates individualized blood pressure (BP) lowering for severe stroke patients. Results will guide optimal BP management in acute stroke care.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Clinical Trials
Background:
- Optimal blood pressure (BP) targets for acute stroke remain undetermined.
- No prior studies have specifically addressed BP management in severe stroke patients.
Purpose of the Study:
- To investigate if individualized lowering of elevated BP improves outcomes in patients with acute severe stroke.
- To establish optimal BP management strategies for severe stroke.
Main Methods:
- The CHASE trial is a multicenter, randomized, controlled study involving 500 adult patients with acute severe stroke.
- Participants were randomized to either individualized BP lowering (10-15% reduction) or guideline-recommended BP lowering.
- Primary outcome: proportion of participants with a poor outcome (modified Rankin Scale ≥3) at 90 days.
Main Results:
- Analysis of primary outcome using multivariate logistic regression adjusted for covariates.
- Evaluation of secondary outcomes including disability at discharge and daily living activities at 90 days.
Conclusions:
- The CHASE trial is the first to explore optimum BP management for acute severe stroke.
- Findings may provide evidence for individualized BP lowering targets in severe stroke patients.
More Related Videos
Related Concept Videos
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
475
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
475
Control System Problem
444
In an open-loop system, such as a basic thermostat, the poles of the transfer function influence the system's response but do not determine its stability. However, when feedback is introduced to form a closed-loop system, such as an advanced thermostat that adjusts heating based on room temperature, stability is governed by the new poles of the closed-loop transfer function.
When forming a closed-loop system, issues can arise if the poles cross into the unstable region, leading to potential...
When forming a closed-loop system, issues can arise if the poles cross into the unstable region, leading to potential...
444
Combinatorial Gene Control
9.7K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
9.7K
Control Systems
1.9K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.9K
Controller Configurations
391
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
391
PID Controller
749
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
749

