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Definition

Chronic refers to something that continues over an extended period of time. A chronic condition is usually long-lasting and does not easily or quickly go away.

Chronic is the opposite of acute.

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Acute vs. chronic conditions
Acute conditions are severe and sudden in onset. This could describe anything from a broken bone to an asthma attack. A chronic condition, by contrast is a long-developing syndrome, such as osteoporosis or asthma. Note that osteoporosis, a chronic condition, may cause a broken bone, an acute condition. An acute asthma attack occurs in the midst of the chronic disease of asthma. Acute conditions, such as a first asthma attack, may lead to a chronic syndrome if untreated.

References

Taber's Medical Dictionary Online website. www.tabers.com/tabersonline. Accessed April 15, 2021.

Last reviewed January 16, 2021 by Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team..

Related specialties

Clinical Trials: Chronic

UF Health research scientists make medicine better every day. They discover new ways to help people by running clinical trials. When you join a clinical trial, you can get advanced medical care. Sometimes years before it's available everywhere. You can also help make medicine better for everyone else. If you'd like to learn more about clinical trials, visit our clinical trials page. Or click one of the links below:

Biopsychosocial Influence on Shoulder Pain

Chronic shoulder pain is a common, costly, and disabling problem for society. The identification of factors predictive of the development of chronic shoulder pain is necessary to develop innovative and effective treatments to reduce the societal…

Status
Accepting Candidates
Ages
18 Years - 64 Years
Sexes
All
DBS Severe ET Closed Loop

This is a feasibility study based on physician-initiated Investigational Device Exemption (IDE) including intraoperative experiments and chronic testing of implanted dual thalamic DBS lead systems. This study will inform protocols for optimal use of…

Status
Accepting Candidates
Ages
21 Years - 99 Years
Sexes
All
ENVISION Cohort

The objective of the study is to characterize the relationship between select objective metrics and clinical outcomes in chronic pain patients treated with Boston Scientific commercially approved neurostimulation systems.

Investigator
Rene Przkora
Status
Accepting Candidates
Ages
18 Years - N/A
Sexes
All
View all chronic studies

News and Patient Stories: Chronic

New study shows a role for cholesterol in pain perception

February 27, 2024

When you stub your toe or bump your head, you know that rubbing the injury can lessen the ouch. But how? New research from the lab of Scott B. Hansen, Ph.D.,…

The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida

Scott B. Hansen, Ph.D.,
More Chronic stories

Latest podcast episodes

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