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Related Concept Videos

Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

337
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
337
Hypertension I: Introduction01:28

Hypertension I: Introduction

179
Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
179
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

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Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
3.4K
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

184
Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
184
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

970
The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's...
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Blood Pressure01:24

Blood Pressure

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The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...
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The Safety and Tolerability of Nebivolol in Hypertensive Patients with Coronary Artery Disease and Left Ventricular Ejection Fraction ≥ 40%: A Population-Based Cohort Study (Nebivolol-TR Study).

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Galectin-3 for risk stratification in acute coronary syndrome.

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Related Experiment Video

Updated: Oct 22, 2025

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
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Systemic arterial hypertension and flight.

Kaan Okyay1

  • 1Department of Cardiology, Faculty of Medicine, Başkent University; Ankara-Turkey.

Anatolian Journal of Cardiology
|August 31, 2021
PubMed
Summary

Managing hypertension is crucial for preventing cardiovascular disease and death. This discussion covers factors causing high blood pressure during flights and offers recommendations for passengers, crew, and physicians to ensure safe air travel.

Area of Science:

  • Cardiology
  • Aerospace Medicine
  • Public Health

Background:

  • Hypertension is a leading preventable cause of cardiovascular disease and mortality.
  • High prevalence of hypertension makes it a significant concern for air travel.
  • Effective management of hypertension is vital for passenger safety during flights.

Purpose of the Study:

  • To discuss pathophysiological factors contributing to elevated blood pressure during commercial flights.
  • To provide recommendations for passengers, flight crew, and physicians for managing hypertension during air travel.
  • To promote safe and trouble-free air travel for individuals with hypertension.

Main Methods:

  • Review of pathophysiological mechanisms of blood pressure changes in flight.

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  • Development of evidence-based recommendations for hypertension management in air travel.
  • Consultation with aviation and medical experts.

    • Main Results:

    • Identification of key factors influencing blood pressure during flight, such as cabin pressure, stress, and dehydration.
    • Formulation of practical guidelines for pre-flight, in-flight, and post-flight management of hypertension.
    • Emphasis on the roles of passengers, crew, and medical professionals in ensuring safety.

    Conclusions:

    • Proactive management of hypertension is essential for safe air travel.
    • Collaborative efforts between passengers, crew, and physicians can mitigate risks associated with hypertension during flights.
    • Implementing recommended strategies can lead to trouble-free air travel experiences for hypertensive individuals.