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Related Concept Videos

Chronic Pancreatitis I: Introduction01:24

Chronic Pancreatitis I: Introduction

The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Chronic Pancreatitis I: Introduction01:25

Chronic Pancreatitis I: Introduction

Chronic pancreatitis is a long-standing, relapsing inflammation of the pancreas, characterized by irreversible damage to the gland. It results in progressive destruction of the pancreatic parenchyma, fibrosis, and eventual loss of both exocrine and endocrine function. The disease may evolve gradually after multiple episodes of acute pancreatitis or develop independently.EtiologyChronic pancreatitis can arise from a variety of causes:Alcohol use is the leading cause, accounting for 70–80% of...
Depressive Disorders: MDD and Dysthymia01:27

Depressive Disorders: MDD and Dysthymia

Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
Chronic Pharyngitis01:23

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Chronic Pancreatitis II: Pathophysiology01:21

Chronic Pancreatitis II: Pathophysiology

Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...

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Related Experiment Video

Updated: May 18, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

Chronic daily headaches.

Fayyaz Ahmed1, Rajsrinivas Parthasarathy, Modar Khalil

  • 1Department of Neurology, Hull Royal Infirmary, Hull, United Kingdom.

Annals of Indian Academy of Neurology
|October 2, 2012
PubMed
Summary
This summary is machine-generated.

Chronic daily headache affects 4% of people, causing significant personal and economic burdens. Effective management requires identifying subtypes and risk factors for appropriate treatment of frequent headaches.

Keywords:
Chronic daily headachechronic migrainechronic tension type headachehemicrania continuanew daily persistent headache

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Area of Science:

  • Neurology
  • Headache Medicine

Background:

  • Chronic daily headache (CDH) affects 4% of the population.
  • CDH significantly impacts individuals and the economy.
  • Management requires excluding secondary causes and identifying risk factors.

Purpose of the Study:

  • To review primary headache disorders contributing to CDH.
  • To focus on recent developments in treating frequent headaches.
  • To provide an overview of CDH subtypes.

Main Methods:

  • Literature review of primary headache disorders.
  • Focus on chronic migraine, chronic tension-type headache, new daily persistent headache, and medication overuse headache.
  • Critical review of current understanding and treatment developments.

Main Results:

  • Chronic migraine, chronic tension-type headache, new daily persistent headache, and medication overuse headache are the most common CDH types.
  • Exclusion of secondary causes is crucial for diagnosis.
  • Recent advancements in treatment are highlighted.

Conclusions:

  • Understanding CDH subtypes is key to effective management.
  • Further research into risk factors and treatments is ongoing.
  • This review synthesizes current knowledge on CDH primary disorders.