Principal and importance of ECG in disease diagnosis
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ecg.pptx
An electrocardiogram (ECG) records the electrical activity of the heart. Electrodes placed on the skin detect small electric currents from the heart and transmit them to an amplifier. The amplified currents are recorded as wavy lines on paper or displayed on a screen. A normal ECG shows three recognizable waves - P, QRS, and T - which represent atrial depolarization, ventricular depolarization, and ventricular repolarization, respectively. The ECG provides information about the heart's rate, rhythm, and any damage or abnormalities. It is used to diagnose heart conditions like heart attacks, arrhythmias, and effects of diseases.
ECG interpretation: Echocardiography and Cardiac Catherization.pptx
The document provides an overview of three cardiac diagnostic tests:
1) Electrocardiography (ECG) which records heart electrical activity and can detect issues like ischemia. Key components of the ECG like the P wave, QRS complex, and T wave are explained.
2) Echocardiography which uses ultrasound to image heart structures and function. Doppler echocardiography evaluates blood flow. Stress echocardiography combines the test with exercise or drugs.
3) Cardiac catheterization involves threading a catheter into the heart to measure pressures and perform angiograms by injecting contrast dye to image arteries. It is used to assess coronary artery disease.
Ecg
The document discusses an electrocardiogram (ECG), which detects the electrical activity of the heart during contraction and relaxation. It explains that the sinoatrial node initiates the heart's electrical impulse, which travels through the atrioventricular node and bundle of His before causing the heart to contract. An ECG records this electrical activity through different waves that represent events in the cardiac cycle, such as atrial depolarization (P wave), ventricular depolarization (QRS complex), and repolarization (T wave). The ECG provides information to diagnose various heart conditions by analyzing features like rate, rhythm, and time intervals between waves.
Electrocardiogram (ECG) / ECG interpretation
This document provides information about electrocardiography (ECG) including its history, components, interpretation, and procedure. It discusses that ECG was invented in 1901 by Enthovan to record electrical impulses of the heart. It describes the normal conduction system, waves (P, Q, R, S, T), segments, intervals of ECG and placement of 12 leads. The document outlines the procedure for performing an ECG including preparing the patient, connecting the leads, and interpreting the results. It emphasizes the importance of properly performing and interpreting ECG to assess cardiac function and diagnose cardiac conditions.
ECG
Electrocardiography records the electrical activity of the heart through electrodes placed on the body. Small currents from the heart's electrical activity flow through the body and can be detected on the skin's surface. An electrocardiograph is the device used to detect these currents and produce an electrocardiogram (ECG), which graphs the heart's electrical patterns. An ECG provides important diagnostic information about heart rate, rhythm, conduction issues, ischemia, heart attacks, and other cardiac conditions.
Heart physiology, blood physiology
The document provides background information on cardiovascular physiology. It discusses how the heart pumps blood through the body via the cardiac cycle of contraction and relaxation. An electrocardiogram (ECG) records the electrical activity of the heart during this cycle. Key aspects of the ECG include the P, QRS, and T waves and intervals like P-R that correspond to different phases of the cardiac cycle. Contraction of the heart chambers (systole) pumps blood into the arteries, while relaxation (diastole) allows the chambers to refill. The opening and closing of heart valves during the cycle produces characteristic sounds. Regular exercise can increase stroke volume and reduce the heart rate increase needed during exertion. The document outlines experiments to
Ecg interpretation
The document defines ECG interpretation and provides details on obtaining an ECG, interpreting the waves and intervals, and determining heart rate and rhythm. An ECG records electrical activity in the heart over multiple beats and is interpreted by healthcare professionals. Key aspects covered include placing electrodes to obtain 12-lead ECGs, defining the P wave, QRS complex, and T wave, and intervals like PR and QT. Methods for calculating heart rate from the RR interval and determining regularity of rhythm are also outlined.
Classification of Arrhythmia from ECG Signals using MATLAB
An Electrocardiogram (ECG) is defined as a test
that is performed on the heart to detect any abnormalities in
the cardiac cycle. Automatic classification of ECG has
evolved as an emerging tool in medical diagnosis for effective
treatments. The work proposed in this paper has been
implemented using MATLAB. In this paper, we have
proposed an efficient method to classify the ECG into normal
and abnormal as well as classify the various abnormalities.
To brief it, after the collection and filtering the ECG signal,
morphological and dynamic features from the signal were
obtained which was followed by two step classification
method based on the traits and characteristic evaluation.
ECG signals in this work are collected from MIT-BIH, AHA,
ESC, UCI databases. In addition to this, this paper also
provides a comparative study of various methods proposed
via different techniques. The proposed technique used helped
us process, analyze and classify the ECG signals with an
accuracy of 97% and with good convenience.
Recommended
ecg.pptx
An electrocardiogram (ECG) records the electrical activity of the heart. Electrodes placed on the skin detect small electric currents from the heart and transmit them to an amplifier. The amplified currents are recorded as wavy lines on paper or displayed on a screen. A normal ECG shows three recognizable waves - P, QRS, and T - which represent atrial depolarization, ventricular depolarization, and ventricular repolarization, respectively. The ECG provides information about the heart's rate, rhythm, and any damage or abnormalities. It is used to diagnose heart conditions like heart attacks, arrhythmias, and effects of diseases.
ECG interpretation: Echocardiography and Cardiac Catherization.pptx
The document provides an overview of three cardiac diagnostic tests:
1) Electrocardiography (ECG) which records heart electrical activity and can detect issues like ischemia. Key components of the ECG like the P wave, QRS complex, and T wave are explained.
2) Echocardiography which uses ultrasound to image heart structures and function. Doppler echocardiography evaluates blood flow. Stress echocardiography combines the test with exercise or drugs.
3) Cardiac catheterization involves threading a catheter into the heart to measure pressures and perform angiograms by injecting contrast dye to image arteries. It is used to assess coronary artery disease.
Ecg
The document discusses an electrocardiogram (ECG), which detects the electrical activity of the heart during contraction and relaxation. It explains that the sinoatrial node initiates the heart's electrical impulse, which travels through the atrioventricular node and bundle of His before causing the heart to contract. An ECG records this electrical activity through different waves that represent events in the cardiac cycle, such as atrial depolarization (P wave), ventricular depolarization (QRS complex), and repolarization (T wave). The ECG provides information to diagnose various heart conditions by analyzing features like rate, rhythm, and time intervals between waves.
Electrocardiogram (ECG) / ECG interpretation
This document provides information about electrocardiography (ECG) including its history, components, interpretation, and procedure. It discusses that ECG was invented in 1901 by Enthovan to record electrical impulses of the heart. It describes the normal conduction system, waves (P, Q, R, S, T), segments, intervals of ECG and placement of 12 leads. The document outlines the procedure for performing an ECG including preparing the patient, connecting the leads, and interpreting the results. It emphasizes the importance of properly performing and interpreting ECG to assess cardiac function and diagnose cardiac conditions.
ECG
Electrocardiography records the electrical activity of the heart through electrodes placed on the body. Small currents from the heart's electrical activity flow through the body and can be detected on the skin's surface. An electrocardiograph is the device used to detect these currents and produce an electrocardiogram (ECG), which graphs the heart's electrical patterns. An ECG provides important diagnostic information about heart rate, rhythm, conduction issues, ischemia, heart attacks, and other cardiac conditions.
Heart physiology, blood physiology
The document provides background information on cardiovascular physiology. It discusses how the heart pumps blood through the body via the cardiac cycle of contraction and relaxation. An electrocardiogram (ECG) records the electrical activity of the heart during this cycle. Key aspects of the ECG include the P, QRS, and T waves and intervals like P-R that correspond to different phases of the cardiac cycle. Contraction of the heart chambers (systole) pumps blood into the arteries, while relaxation (diastole) allows the chambers to refill. The opening and closing of heart valves during the cycle produces characteristic sounds. Regular exercise can increase stroke volume and reduce the heart rate increase needed during exertion. The document outlines experiments to
Ecg interpretation
The document defines ECG interpretation and provides details on obtaining an ECG, interpreting the waves and intervals, and determining heart rate and rhythm. An ECG records electrical activity in the heart over multiple beats and is interpreted by healthcare professionals. Key aspects covered include placing electrodes to obtain 12-lead ECGs, defining the P wave, QRS complex, and T wave, and intervals like PR and QT. Methods for calculating heart rate from the RR interval and determining regularity of rhythm are also outlined.
Classification of Arrhythmia from ECG Signals using MATLAB
An Electrocardiogram (ECG) is defined as a test
that is performed on the heart to detect any abnormalities in
the cardiac cycle. Automatic classification of ECG has
evolved as an emerging tool in medical diagnosis for effective
treatments. The work proposed in this paper has been
implemented using MATLAB. In this paper, we have
proposed an efficient method to classify the ECG into normal
and abnormal as well as classify the various abnormalities.
To brief it, after the collection and filtering the ECG signal,
morphological and dynamic features from the signal were
obtained which was followed by two step classification
method based on the traits and characteristic evaluation.
ECG signals in this work are collected from MIT-BIH, AHA,
ESC, UCI databases. In addition to this, this paper also
provides a comparative study of various methods proposed
via different techniques. The proposed technique used helped
us process, analyze and classify the ECG signals with an
accuracy of 97% and with good convenience.
Essentials Of Ecg
The document provides an overview of electrocardiograms (ECGs), including their purpose, how they work, and what they can reveal about heart conditions. It discusses the basic anatomy and electrical conduction system of the heart. It then explains how ECGs are performed and interpreted, covering the different waves that are measured and what they indicate about heart rate, rhythm, and chambers of the heart. Abnormal findings are also briefly outlined.
ICU - The ECG - ELECTROCARDIOGRAM.pptx
Through out in diversification, monitoring aspect is quite a crucial ideal aspect of focusing on, ECG -ELECTROCARDIOGRAM is abig adjustement for the monitoring of patients cardiac activity. On the above slide slot is emphasized on the better understanding of the ECG.
Ecg interpretations
This document provides an overview of electrocardiogram (ECG or EKG) interpretation presented by Ms. Hari Singh Nagar. It defines ECG as a test that records the heart's electrical activity over time using electrodes placed on the skin. The summary explains how to obtain an ECG by attaching electrodes, and how to interpret the waves, complexes, intervals and segments of an ECG strip including P wave, QRS complex, T wave, and others. It also describes how to determine the heart rate and rhythm from the ECG by measuring intervals between waves.
ELECTROCARDIOGRAM.pptx
The document summarizes the key aspects of an electrocardiogram (ECG). An ECG records the electrical signals produced by the heart during each heartbeat. It displays three clearly defined waves - the P wave representing atrial depolarization, the QRS complex representing rapid ventricular depolarization, and the T wave indicating ventricular repolarization. The ECG also measures important time intervals between these waves, such as the P-Q interval reflecting conduction time from the atria to the ventricles. Analysis of the ECG waves and intervals provides information about the heart's electrical activity during each heartbeat.
Ecg for Nurses...
The document defines electrocardiography and describes the process for interpreting an ECG. It discusses the heart's conduction system, electrodes, leads, and the typical waveforms seen on an ECG including the P, QRS, ST segments, and T waves. It provides a 6-step approach to ECG interpretation: 1) calculating the heart rate, 2) assessing regularity, 3) examining P waves, 4) measuring the P-R interval, 5) analyzing the QRS complex and ST-T waves, and 6) interpreting the rhythm based on steps 1-5.
ECG - Electrocardiogram
The electrocardiogram (ECG) is a graphical presentation of the electrical activity of the heart during each heartbeat. The ECG indicates the rate and rhythm of heartbeats as well as blood flow in heart muscles. The ECG produces distinct waves - P, QRS, and T - which represent atrial and ventricular depolarization and repolarization during each heartbeat. The ECG is recorded using either a pen recorder system or oscilloscope recorder system, which detect the tiny electrical changes on the skin that are produced with each heartbeat. Abnormalities in the size of the ECG waves can help detect various heart conditions.
Ecg part i
Electrocardiography: is the recording of the electrical impulses that are generated in the heart. These impulses initiate the contraction of cardiac muscles.
ecg.pptx
An ECG records the electrical activity of the heart through electrodes placed on the skin. It detects depolarization and repolarization of the myocardium during each heartbeat. The ECG waveform includes the P wave, PR interval, QRS complex, ST segment, T wave, and QT interval. ECGs use 12 leads in a standard configuration to view the heart from multiple angles. Holter monitoring involves continuous ECG recording over 24 hours or more to evaluate heart conditions that may not appear during a brief office ECG.
ecg machine
An electrocardiogram (ECG) records the electrical activity of the heart. Small metal electrodes are attached to the skin on the arms, legs, and chest to detect electrical impulses from the heart. The ECG machine amplifies and records these impulses, showing normal and abnormal heart rhythms and any signs of heart damage or disease. A normal ECG tracing shows the P wave, QRS complex, and T wave representing atrial and ventricular contractions and repolarizations. The ECG test takes about five minutes and is painless.
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This document provides an overview of electrocardiography (ECG) for paramedics and junior medical officers. It discusses the anatomy and physiology underlying the ECG waveform, including the conduction system of the heart and cardiac action potentials. It then describes how to properly perform and interpret a standard 12-lead ECG, defining the various waves, segments, intervals and other components as well as common abnormalities. Factors that can affect the ECG tracing are also reviewed.
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This document provides an overview of interpreting normal 12-lead electrocardiograms and some abnormal findings. It discusses the electrical conduction system of the heart and how depolarization spreads. Key aspects of a normal ECG are described, including intervals, waves, and what each lead measures. Common abnormalities are explained like arrhythmias, conduction defects, myocardial infarction, and hypertrophy. The diagnostic value of ECGs for conditions like coronary artery disease and various cardiac arrhythmias is also covered.
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This document provides an overview of managing patients with dysrhythmias and conduction problems. It begins by outlining the learning objectives, which include correlating ECG components to heart physiology, defining ECG waveforms, analyzing ECG strips, and identifying dysrhythmias and their management. It then describes normal electrical conduction in the heart and the components of an ECG. Various dysrhythmias are defined based on the site of origin, including sinus node, atrial, junctional and ventricular dysrhythmias. Specific dysrhythmias like sinus bradycardia, sinus tachycardia, premature atrial complexes and atrial flutter are explained in detail.
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This document discusses electrocardiography (ECG) and its use in evaluating cardiac disease. An ECG records the electrical activity of the heart and can detect abnormalities in rhythm, conduction, chamber size and ischemia. A standard ECG involves 10 electrodes that produce 12 leads displaying the heart's electrical signals from different angles. ECGs are used to diagnose conditions like myocardial infarction and assess heart muscle damage through changes in the ST segment and T waves.
2. investigation of cardiovascular system )2(
This document discusses electrocardiography (ECG) and its use in evaluating cardiac disease. An ECG records the electrical activity of the heart and can detect abnormalities in rhythm, conduction, chamber size and ischemia. A standard ECG involves 10 electrodes that produce 12 leads displaying the heart's electrical signals from different angles. ECGs are used to diagnose conditions like myocardial infarction and assess heart muscle damage through changes in the ST segment and T waves.
BASICS OF ECG
The ECG is an essential tool for health professionals in making a diagnosis of abnormal heart rhythms when one is suspected. It is a routine investigation in people who complain of symptoms such as chest pain as well as breathlessness. The findings of the ECG can also have an effect on treatment of certain conditions, for example it is helpful in deciding some aspects of treatment in people who have suffered from a heart attack.
ECG FBISE HSSC-I Chap. 12 XI - Biology
Electrocardiograhy (A topic in National Book Foundation Text Book for the Federal Board's Pre-Medical Students, up to their level for their Concepts and Understandings as well as the proper NOTES to have marks in Board's Exams). In'sha'Allah, they as well as Professors will Appreciate this Hectic Task of mine. It took 10 days to arrange and synchronize the material up to their Level of Understanding.
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1. The document provides instructions on how to navigate an online learning module on electrocardiogram (ECG) recording and interpretation. It explains how to access the test, maximize or minimize the sidebar menu, and save progress by clicking the home icon.
2. The document then covers the basics of ECGs, including how they work, the electrical pathways in the heart, normal ECG wave patterns, electrode placement for recording, and examples of normal and some abnormal ECG readings.
3. Finally, it reminds the learner to click the home icon after finishing the test to save results and complete the learning module.
Ecg ppp.pptx 2
The document provides an overview of electrocardiography (ECG) including its uses, the electrical conduction system of the heart, how to record an ECG, the components of a normal ECG, how to report and analyze an ECG, and examples of normal and abnormal ECG tracings. The objectives are to introduce ECG, discuss its uses in diagnosing cardiac conditions, describe the electrical conduction system and how this is reflected in the ECG, and provide guidance on recording, interpreting, and reporting ECG findings.
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An electrocardiogram(ECG) is a simple test that can be used to check your heart's rhythm and electrical activity. Sensors attached to the skin are used to detect the electrical signals produced by your heart each time it beats.
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The document provides an overview of electrocardiograms (ECGs), including their purpose, how they work, and what they can reveal about heart conditions. It discusses the basic anatomy and electrical conduction system of the heart. It then explains how ECGs are performed and interpreted, covering the different waves that are measured and what they indicate about heart rate, rhythm, and chambers of the heart. Abnormal findings are also briefly outlined.
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Through out in diversification, monitoring aspect is quite a crucial ideal aspect of focusing on, ECG -ELECTROCARDIOGRAM is abig adjustement for the monitoring of patients cardiac activity. On the above slide slot is emphasized on the better understanding of the ECG.
Ecg interpretations
This document provides an overview of electrocardiogram (ECG or EKG) interpretation presented by Ms. Hari Singh Nagar. It defines ECG as a test that records the heart's electrical activity over time using electrodes placed on the skin. The summary explains how to obtain an ECG by attaching electrodes, and how to interpret the waves, complexes, intervals and segments of an ECG strip including P wave, QRS complex, T wave, and others. It also describes how to determine the heart rate and rhythm from the ECG by measuring intervals between waves.
ELECTROCARDIOGRAM.pptx
The document summarizes the key aspects of an electrocardiogram (ECG). An ECG records the electrical signals produced by the heart during each heartbeat. It displays three clearly defined waves - the P wave representing atrial depolarization, the QRS complex representing rapid ventricular depolarization, and the T wave indicating ventricular repolarization. The ECG also measures important time intervals between these waves, such as the P-Q interval reflecting conduction time from the atria to the ventricles. Analysis of the ECG waves and intervals provides information about the heart's electrical activity during each heartbeat.
Ecg for Nurses...
The document defines electrocardiography and describes the process for interpreting an ECG. It discusses the heart's conduction system, electrodes, leads, and the typical waveforms seen on an ECG including the P, QRS, ST segments, and T waves. It provides a 6-step approach to ECG interpretation: 1) calculating the heart rate, 2) assessing regularity, 3) examining P waves, 4) measuring the P-R interval, 5) analyzing the QRS complex and ST-T waves, and 6) interpreting the rhythm based on steps 1-5.
ECG - Electrocardiogram
The electrocardiogram (ECG) is a graphical presentation of the electrical activity of the heart during each heartbeat. The ECG indicates the rate and rhythm of heartbeats as well as blood flow in heart muscles. The ECG produces distinct waves - P, QRS, and T - which represent atrial and ventricular depolarization and repolarization during each heartbeat. The ECG is recorded using either a pen recorder system or oscilloscope recorder system, which detect the tiny electrical changes on the skin that are produced with each heartbeat. Abnormalities in the size of the ECG waves can help detect various heart conditions.
Ecg part i
Electrocardiography: is the recording of the electrical impulses that are generated in the heart. These impulses initiate the contraction of cardiac muscles.
ecg.pptx
An ECG records the electrical activity of the heart through electrodes placed on the skin. It detects depolarization and repolarization of the myocardium during each heartbeat. The ECG waveform includes the P wave, PR interval, QRS complex, ST segment, T wave, and QT interval. ECGs use 12 leads in a standard configuration to view the heart from multiple angles. Holter monitoring involves continuous ECG recording over 24 hours or more to evaluate heart conditions that may not appear during a brief office ECG.
ecg machine
An electrocardiogram (ECG) records the electrical activity of the heart. Small metal electrodes are attached to the skin on the arms, legs, and chest to detect electrical impulses from the heart. The ECG machine amplifies and records these impulses, showing normal and abnormal heart rhythms and any signs of heart damage or disease. A normal ECG tracing shows the P wave, QRS complex, and T wave representing atrial and ventricular contractions and repolarizations. The ECG test takes about five minutes and is painless.
Ecg update(basic cardiology)
This document provides an overview of electrocardiography (ECG) for paramedics and junior medical officers. It discusses the anatomy and physiology underlying the ECG waveform, including the conduction system of the heart and cardiac action potentials. It then describes how to properly perform and interpret a standard 12-lead ECG, defining the various waves, segments, intervals and other components as well as common abnormalities. Factors that can affect the ECG tracing are also reviewed.
Interpretation of normal 12 leads electrocardiogram & some
This document provides an overview of interpreting normal 12-lead electrocardiograms and some abnormal findings. It discusses the electrical conduction system of the heart and how depolarization spreads. Key aspects of a normal ECG are described, including intervals, waves, and what each lead measures. Common abnormalities are explained like arrhythmias, conduction defects, myocardial infarction, and hypertrophy. The diagnostic value of ECGs for conditions like coronary artery disease and various cardiac arrhythmias is also covered.
ECG.pptx
This document provides an overview of managing patients with dysrhythmias and conduction problems. It begins by outlining the learning objectives, which include correlating ECG components to heart physiology, defining ECG waveforms, analyzing ECG strips, and identifying dysrhythmias and their management. It then describes normal electrical conduction in the heart and the components of an ECG. Various dysrhythmias are defined based on the site of origin, including sinus node, atrial, junctional and ventricular dysrhythmias. Specific dysrhythmias like sinus bradycardia, sinus tachycardia, premature atrial complexes and atrial flutter are explained in detail.
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2. investigation of cardiovascular system )2(
This document discusses electrocardiography (ECG) and its use in evaluating cardiac disease. An ECG records the electrical activity of the heart and can detect abnormalities in rhythm, conduction, chamber size and ischemia. A standard ECG involves 10 electrodes that produce 12 leads displaying the heart's electrical signals from different angles. ECGs are used to diagnose conditions like myocardial infarction and assess heart muscle damage through changes in the ST segment and T waves.
2. investigation of cardiovascular system )2(
This document discusses electrocardiography (ECG) and its use in evaluating cardiac disease. An ECG records the electrical activity of the heart and can detect abnormalities in rhythm, conduction, chamber size and ischemia. A standard ECG involves 10 electrodes that produce 12 leads displaying the heart's electrical signals from different angles. ECGs are used to diagnose conditions like myocardial infarction and assess heart muscle damage through changes in the ST segment and T waves.
BASICS OF ECG
The ECG is an essential tool for health professionals in making a diagnosis of abnormal heart rhythms when one is suspected. It is a routine investigation in people who complain of symptoms such as chest pain as well as breathlessness. The findings of the ECG can also have an effect on treatment of certain conditions, for example it is helpful in deciding some aspects of treatment in people who have suffered from a heart attack.
ECG FBISE HSSC-I Chap. 12 XI - Biology
Electrocardiograhy (A topic in National Book Foundation Text Book for the Federal Board's Pre-Medical Students, up to their level for their Concepts and Understandings as well as the proper NOTES to have marks in Board's Exams). In'sha'Allah, they as well as Professors will Appreciate this Hectic Task of mine. It took 10 days to arrange and synchronize the material up to their Level of Understanding.
Ecg recording basic interpretation e learning 2
1. The document provides instructions on how to navigate an online learning module on electrocardiogram (ECG) recording and interpretation. It explains how to access the test, maximize or minimize the sidebar menu, and save progress by clicking the home icon.
2. The document then covers the basics of ECGs, including how they work, the electrical pathways in the heart, normal ECG wave patterns, electrode placement for recording, and examples of normal and some abnormal ECG readings.
3. Finally, it reminds the learner to click the home icon after finishing the test to save results and complete the learning module.
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The document provides an overview of electrocardiography (ECG) including its uses, the electrical conduction system of the heart, how to record an ECG, the components of a normal ECG, how to report and analyze an ECG, and examples of normal and abnormal ECG tracings. The objectives are to introduce ECG, discuss its uses in diagnosing cardiac conditions, describe the electrical conduction system and how this is reflected in the ECG, and provide guidance on recording, interpreting, and reporting ECG findings.
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Principal and importance of ECG in disease diagnosis
- 1. NAME:MOHD YAQOOB LONE ENEROLLEMENT NO:2016cukmr21 SEMESTER: 7th TEACHER IN-CHARGE:DR OWAIS BHAT DEPARTMENT: BIOTECHNONLGY
- 3. ELECTROCARDIOGRAM (ECG) refers to the recording of electrical changes that occurs in heart during a cardiac cycle. It may be abbreviated as ECG or EKG.
- 4. .It works on the principle that a contracting muscle generates a small electric current that can be detected and measured through electrodes suitably placed on body.
- 5. This record or graphical registration of electrical activity of heart is called an electrocardiogram. .The conductivity of heart normally follows an electrical pathway from SA node through the interatrial pathway to the AV node to the Bundle of His down the bundle branches to the Purkinje fibers
- 7. - - +
- 8. NORMAL ECG WAVE .A normal ECG makes a specific pattern of three recognizable waves in a cardiac cycle.
- 9. .It is a small upward wave that appears first. .It represents atrial depolarisation. .The PR interval begins at the start of the P wave and ends at the beginning of the Q wave. .It represents the time for electrical activity to move between the atria and the ventricles.
- 10. . The QRS wave represents the depolarisation of the ventricles. .It appears as three closely related waves on the ECG (the Q, R and S wave). .The ST segment starts at the end of the S wave and ends at the beginning of the T wave. .The ST segment is an isoelectric line representing the time between depolarisation and repolarisation of the ventricles (i.e. ventricular contraction).
- 11. .It indicates ventricular repolarization (diastole) . **ATRIAL DIASTOLE MERGES WITH QRS-WAVE . The QT interval begins at the start of the QRS complex and finishes at the end of the T wave. .It represents the time taken for the ventricles to depolarise and then repolarise.
- 12. Detecting Arrhythmias : .Different types of arrhythmias, such as atrial fibrillation or ventricular tachycardia, can be detected through specific patterns on the ECG. Ischemia and Myocardial Infarction Detection: .ECG is vital in diagnosing ischemic heart conditions by detecting changes in the ST segment. ST-segment elevation or depression can indicate myocardial infarction (heart attack), guiding immediate intervention.
- 13. Screening for Other Conditions: .ECG findings can sometimes suggest non-cardiac issues, such as electrolyte imbalances or pulmonary embolism, contributing to a broader diagnostic approach. Guiding Treatment Decisions: .The information obtained from ECG plays a crucial role in guiding treatment decisions for cardiac conditions. It helps determine whether medication, lifestyle changes, or invasive interventions are necessary.
- 14. Thank you!