Related Experiment Video
Updated: Jul 30, 2026
10:08
Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
13.9K
A patient with dizziness, tachycardia and a DDDR pacemaker
Summary
Interference between a cardiac rhythm monitor and a minute ventilation pacemaker caused a high pacemaker rate. The patient's dizziness was unrelated to this pacemaker malfunction, highlighting potential device interactions.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Device Technology
Background:
- A DDD-R minute ventilation sensor pacemaker was implanted in an 84-year-old female patient.
- The patient presented with dizziness, and ECG revealed an atrial and ventricular paced rhythm of 140 beats/min.
Purpose of the Study:
- To investigate the cause of a high pacemaker rate in a patient with a minute ventilation sensor pacemaker.
- To determine the interaction between a cardiac rhythm monitoring system and a pacemaker sensor.
Main Methods:
- The patient was monitored in the coronary care unit.
- The cardiac rhythm monitoring system, which uses transthoracic impedance (TTI) measurement for respiration rate, was identified as a potential source of interference.
- The pacemaker's rate response sensor is also driven by TTI measurement.
Main Results:
- Disconnecting the patient from the cardiac monitor caused the pacemaker rate to decrease from 140 beats/min to 90 beats/min.
- Inappropriate interference between the cardiac rhythm monitoring system and the minute ventilation pacemaker sensor resulted in a sensor-driven high pacemaker rate.
- The patient's dizziness was determined to be unrelated to the elevated pacemaker rate.
Conclusions:
- Cardiac rhythm monitoring systems and minute ventilation pacemakers can interfere with each other due to shared TTI measurement technology.
- This interference can lead to inappropriate high pacemaker rates.
- It is crucial to consider potential device interactions when diagnosing pacemaker-related symptoms.
More Related Videos
Related Concept Videos
01:28Dysrhythmias 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...
01:29Dysrhythmias 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.
01:18Dysrhythmias IV: Characteristics of Bradyarrhythmias
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
01:30Dysrhythmias 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...
01:25Dysrhythmias 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...
01:25Dysrhythmias VII: Nursing Management of Dysrhythmias
Nursing management of dysrhythmias involves the following:AssessmentSubjective Assessment:The initial step involves gathering patient-reported symptoms such as dizziness, palpitations, and chest discomfort. It is crucial to collect a detailed history, including previous heart conditions, current medication use, and lifestyle factors like caffeine and alcohol consumption.Objective Assessment:This involves observing clinical signs such as jugular venous distention, cool and pale skin, and...