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Related Concept Videos

Panic Disorder01:27

Panic Disorder

Panic disorder is an anxiety disorder characterized by recurrent and sudden minutes-long episodes of intense fear, known as panic attacks. These attacks may feel like heart attacks and often happen without warning or a specific cause. They can include symptoms such as rapid heart rate, shortness of breath, chest pain, trembling, sweating, dizziness, and a sense of helplessness. During a panic attack, individuals may feel as though they are experiencing a heart attack or are in a...
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
Alterations in Respiration II01:30

Alterations in Respiration II

There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration can...

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Method to Obtain Pattern of Breathing in Senescent Mice through Unrestrained Barometric Plethysmography
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Published on: April 28, 2020

Baseline respiratory parameters in panic disorder: a meta-analysis.

Massimiliano Grassi1, Daniela Caldirola, Giovanna Vanni

  • 1Department of Clinical Neurosciences, Villa San Benedetto Hospital, Hermanas Hospitalarias, FoRiPsi, Albese con Cassano, Italy. massi.gra@gmail.com

Journal of Affective Disorders
|October 31, 2012
PubMed
Summary

Individuals with panic disorder (PD) exhibit abnormal baseline respiratory function, including hyperventilation and irregular breathing patterns. These findings suggest chronic respiratory changes, not solely due to anxiety during testing.

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Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
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Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns

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Related Experiment Videos

Last Updated: May 17, 2026

Method to Obtain Pattern of Breathing in Senescent Mice through Unrestrained Barometric Plethysmography
09:13

Method to Obtain Pattern of Breathing in Senescent Mice through Unrestrained Barometric Plethysmography

Published on: April 28, 2020

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
08:34

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns

Published on: September 16, 2019

Area of Science:

  • Pulmonary Medicine
  • Psychiatry
  • Medical Research

Background:

  • Panic disorder (PD) is theorized to involve abnormalities in baseline respiratory function.
  • Previous research suggests a link between respiratory patterns and PD, but comprehensive analysis is lacking.

Purpose of the Study:

  • To conduct a meta-analysis of studies comparing baseline respiratory and hematic parameters in individuals with PD versus controls.
  • To identify specific respiratory and blood-related differences associated with PD.

Main Methods:

  • Systematic literature search of bibliographic databases.
  • Application of fixed-effects and random-effects models for meta-analysis.
  • Inclusion of moderator analyses and publication bias diagnostics.

Main Results:

  • Significantly higher minute ventilation and lower end-tidal CO2 (et-pCO2) in PD subjects.
  • Reduced bicarbonate (HCO3-) and phosphate (PO4-) levels, increased respiratory variability, and higher rates of sighs and apneas observed in PD.
  • Heterogeneity in results was partly explained by moderator analyses; no significant publication bias detected.

Conclusions:

  • Findings support the presence of distinct baseline respiratory abnormalities in PD.
  • Evidence suggests chronic hyperventilation, potentially independent of acute anxiety during assessment.
  • Increased respiratory irregularity and specific patterns like sighs and apneas are associated with PD, though their precise role requires further investigation.