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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

1.6K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

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Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
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Decreased pulse rate01:14

Decreased pulse rate

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Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
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Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

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Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
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Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Updated: Mar 14, 2026

Translational Rabbit Model of Chronic Cardiac Pacing
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Translational Rabbit Model of Chronic Cardiac Pacing

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Pacemakers.

Stephen Thomas1

  • 1Cardiology Radiology at King's College Hospital, London.

Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
|September 23, 2016
PubMed
Summary
This summary is machine-generated.

Pacemakers are battery-powered devices that provide electrical stimulation to regulate heart rhythm when the heart's natural mechanism fails. The first permanent pacemaker implantation occurred in 1958.

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Area of Science:

  • Biomedical Engineering
  • Cardiology

Background:

  • The heart's natural electrical system can fail, leading to irregular cardiac rhythms.
  • Pacemakers are medical devices designed to address cardiac rhythm abnormalities.

Purpose of the Study:

  • To describe the function and types of pacemakers.
  • To provide historical context on the first permanent pacemaker implantation.

Main Methods:

  • Review of pacemaker technology and function.
  • Historical account of early pacemaker use.

Main Results:

  • Pacemakers are battery-powered devices that deliver electrical discharges to support heart function.
  • Pacemakers can be fixed-rate or demand-based and are QRS inhibited.
  • The first permanent pacemaker was implanted in 1958.

Conclusions:

  • Pacemakers are crucial for managing heart rhythm disorders.
  • The development of permanent pacemakers marked a significant advancement in cardiac care.