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Related Concept Videos

Hypertension I: Introduction01:28

Hypertension I: Introduction

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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,...
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Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

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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,...
1.0K
Hypertension V: Nursing Management01:23

Hypertension V: Nursing Management

495
The nursing management of hypertension involves accurately assessing symptoms, making a comprehensive nursing diagnosis, collaborating with patients to set goals, and implementing targeted interventions to mitigate the condition's impact and improve patient well-being.Comprehensive AssessmentThe initial step in nursing care for hypertension involves a thorough patient assessment. It includes evaluating symptoms such as headaches, dizziness, blurred vision, and previous hypertension episodes.
495
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

4.5K
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...
4.5K
Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

671
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...
671
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

613
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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Preoperative Hypertension.

Simon James Howell1

  • 1Leeds Institute of Biomedical and Clinical Sciences, University of Leeds, Clinical Sciences Building, St James's University Hospital, Leeds, LS9 7TF UK.

Current Anesthesiology Reports
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PubMed
Summary
This summary is machine-generated.

New hypertension guidelines emphasize ambulatory blood pressure monitoring over single preoperative readings. While low blood pressure during surgery increases risk, deferring surgery for hypertension above 180/100 mmHg is not advised without comorbidities.

Keywords:
AntihypertensiveBlood pressureHypertensionPerioperative medicine

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Area of Science:

  • Cardiology
  • Anesthesiology
  • Surgical Management

Background:

  • Recent hypertension guidelines advocate for ambulatory blood pressure measurement.
  • Isolated preoperative blood pressure readings have limited clinical value.

Purpose of the Study:

  • To review the implications of new hypertension guidelines for perioperative management.
  • To contextualize guideline changes with findings from large observational studies.

Main Methods:

  • Review of current hypertension guidelines.
  • Analysis of recent large observational studies on blood pressure and surgical outcomes.

Main Results:

  • Ambulatory blood pressure monitoring is highlighted by new guidelines.
  • Both preoperative and intraoperative hypotension are linked to increased surgical risk.
  • The specific risk of hypotension in hypertensive patients remains unclear.

Conclusions:

  • Accurate blood pressure measurement techniques are crucial for hypertensive surgical patients.
  • Preoperative blood pressure <180/100 mmHg is generally not a reason to postpone surgery.
  • Management of higher blood pressures requires individualized, case-by-case decisions due to limited evidence.