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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

1.3K
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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Special considerations while measuring pulse01:13

Special considerations while measuring pulse

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Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
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Decreased pulse rate01:14

Decreased pulse rate

808
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...
808
Pulse01:16

Pulse

1.9K
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
1.9K
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

1.5K
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...
1.5K
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

368
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...
368

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Related Experiment Video

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Translational Rabbit Model of Chronic Cardiac Pacing
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The quest for physiological pacing-Does one size fit all?

Gerry Kaye1

  • 1Division of Cardiology, University of Queensland Medical School, Brisbane, Queensland, Australia.

Journal of Cardiovascular Electrophysiology
|October 19, 2019
PubMed
Summary

Optimal pacing lead placement for bradycardia and heart failure is debated. Research explores physiological pacing to mimic natural heart function, aiming to improve cardiac performance and ventricular health.

Keywords:
cardiac pacingheart failurephysiological pacingright ventricular pacingventricular dyssynchrony

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Electrophysiology

Background:

  • Pacing is a standard treatment for bradycardias and certain heart failure types.
  • The ideal pacing lead position to optimize cardiac function and prevent ventricular dysfunction is not definitively established.
  • Current research focuses on achieving physiological pacing systems that emulate natural cardiac activity.

Discussion:

  • Investigating alternative pacing sites beyond traditional locations.
  • Analyzing the impact of different lead positions on hemodynamics and ventricular synchrony.
  • Comparing outcomes between conventional and novel physiological pacing strategies.

Key Insights:

  • Optimal lead placement remains a critical, unresolved issue in cardiac pacing.
  • Physiological pacing aims to restore a more natural heart rhythm and contraction pattern.
  • Minimizing ventricular dysfunction is a primary goal in advanced pacing lead strategies.

Outlook:

  • Future research will likely concentrate on advanced lead placement techniques for enhanced physiological pacing.
  • Development of novel pacing systems to improve patient outcomes and quality of life.
  • Continued exploration of lead positioning to maximize benefits in heart failure and bradycardia management.