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Related Concept Videos

Increased pulse rate01:17

Increased pulse rate

Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

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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Related Experiment Video

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Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
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Targeting tachycardia: diagnostic tips and tools.

Dmitriy Kireyev1, Stanley F Fernandez, Vipul Gupta

  • 1Cambridge Health Alliance, Whidden Memorial Hospital, Everett, MA, USA.

The Journal of Family Practice
|May 12, 2012
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Summary

Identify narrow QRS complex tachycardias quickly. This review provides EKG strips and an algorithm to differentiate benign cases from those needing urgent intervention, ensuring prompt diagnosis and treatment.

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Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Narrow QRS complex tachycardias (NQRS-T) are common arrhythmias.
  • While many NQRS-T are benign, some indicate serious underlying conditions requiring immediate medical attention.
  • Accurate and timely diagnosis is crucial for effective patient management.

Purpose of the Study:

  • To provide a comprehensive review of narrow QRS complex tachycardias.
  • To offer practical tools, including EKG strips and a diagnostic algorithm, for rapid identification of NQRS-T.
  • To aid clinicians in distinguishing between benign and critical NQRS-T.

Main Methods:

  • Review of current literature on narrow QRS complex tachycardias.
  • Inclusion of representative EKG strips illustrating various NQRS-T morphologies.
  • Development of a step-by-step diagnostic algorithm for NQRS-T.

Main Results:

  • Detailed descriptions of common NQRS-T, differentiating features, and associated EKG findings.
  • Illustrative examples of EKG strips for key NQRS-T diagnoses.
  • A clear, actionable algorithm to guide diagnostic decision-making.

Conclusions:

  • Rapid and accurate diagnosis of NQRS-T is achievable with appropriate tools.
  • The provided EKG examples and algorithm facilitate efficient differentiation of NQRS-T.
  • Timely intervention for critical NQRS-T can be facilitated by this resource.