Cardiology, diagnosis and treatment of heart diseases
Cardiology is that branch of medicine which deals with the treatment of heart diseases

Cardiology - Definitions

About Dr. Robert J. Matthews

Definitions

Acute Viral and Idiopathic Pericarditis

Cardiology by Dr Robert J.Matthews M.D.
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Frequently Asked Questions
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On this page we include some discussion threads with Dr. Matthews that may have broad appeal. Specific names have been omitted to preserve the anonymi

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Message Board 3
On this page we include some discussion threads with Dr. Matthews that may have broad appeal. Specific names have been omitted to preserve the anonymi

EKG

Fibrous pericardial effusion (PE)

Crossection of the Heart

The conduction system of the heart

Two-dimensional subcostal views from a patient with chronic obstructive lung disease

Amyloidosis of the Heart
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Amyloidosis of the Heart

Amyloidosis of the Heart

Electromicrograph showing extensive replacement of myocardium by amyloid

Parasternal Long- and Short-Axis Views of the Left Ventricle
Active fixation lead

Left Ventricular Hypertrophy

Amyloidosis of the Heart

Chest Film Obtained on the Second Admission
Active fixation lead

M-mode echocardiogram

Amyloidosis of the Heart

Amyloidosis

Amyloidosis

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Aneurysm
Aortic aneurysm refers to an abnormality in the aorta, be it in the thoracic or abdominal portion.

Most frequent sites of aneurysms of the aorta and major arteries.

Atherosclerosis

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Transesophageal Echocardiogram

Septic Thromboembolism

Two-dimensional parasternal echocardiogram

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Assessment of aortic regurgitation severity from continuous wave Doppler signal intensity.

Surgical classification of dissecting aneurysms of the aorta

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51e

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Contrast-enchanced computed tomographic scan

Contrast-enhanced CT scan

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Aneurysm of a Saphenous-Vein Bypass Graft

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Angina Pectoris - anterior chest pain due to a partially blocked coronary artery.
This term refers to midsternal, anterior chest pain due to a partially blocked coronary artery, often felt as a chest pressure like an elephant sittin

Angina Pectoris
Angina pectoris refers to midsternal, anterior chest pain due to a partially blocked coronary artery

Diagram showing tunneled left anterior descending coronary artery
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Diagram showing segments of tunneled and nontunneled epicardial coronary artery
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Tunneled epicardial coronary arteries.
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Transverse section of ventricular myocardium
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Tunneled epicardial coronary artery
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Tunneled epicardial coronary artery
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Diagram showing some of the clinical and anatomic factors
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Diagram showing morphologic variations in tunneling
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Diagram showing extremes of tunneled coronary arteries
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Intravascular ultrasound imaging of the myocardial bridging
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Coronary angiogram
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Intracoronary Doppler blood flow velocity profile
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Representative case with CMB augmented by nitroglycerin
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Determination of vessel dimension at site with CMB by quantitative coronary analysis system
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Case with CMB that was demonstrated only after nitroglycerin administration
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Summary of effect of nitroglycerin (NTG) on vessel dimension of sites with CMB
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Representative pattern of intravascular ultrasound imaging at site with CMB
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Angina Pectoris
Angina pectoris refers to midsternal, anterior chest pain due to a partially blocked coronary artery

Acute effects of nitrates on exercise testing in syndrome X
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Main pathogenetic mechanisms of syndrome X
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Angiogram
An angiogram is an invasive test (arteriogram) in which a radiopaque dye is injected through a catheter inserted into the right femoral artery located

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PTCA
Right anterior oblique coronary arteriogram of the first patient who underwent the first transluminal coronary angioplasty on September 16, 1977

Coronary Angiogram

Angioplasty

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Atherectomy

Complex stenosis of tortuous proxima' LAD
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Aorta - one of the great arteries of the heart arising from the outflow tract of the left ventricle ...
Aorta is one of the great arteries of the heart arising from the outflow tract of the left ventricle to supply oxygenated blood to the body (see figur

Four-chamber View of Heart

Panels from transesophageal echocardiographic examinations

A necropsy specimen from an elderly woman
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Aortic Insufficiency
Aortic insufficiency is a condition in which the aortic valve has become disfigured to such an extent that its leaflets no longer are able to complete

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Low-power photomicrograph of an aortic cusp

Aortic regurgitation, pulsed wave. Doppler recording
The aortic (A2) and pulmonic (P2) closure sounds are coincident with the incisurae of their respective arterial traces.

Assessment of aortic regurgitation severity from continuous wave
Assessment of aortic regurgitation severity from continuous wave Doppler signal intensity.

Assessment of aortic regurgitant severity
Assessment of aortic regurgitation severity from continuous wave Doppler signal intensity.

Fungus Prosthetic-Valve Endocarditis

Aortic Coarctation and Bicuspid Aortic Valve
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Aortic Regurgitation

Table 1
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

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Assessment of aortic regurgitation severity from continuous wave Doppler signal intensity.

Table 2
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Table 3
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Aortic Stenosis
In patients younger than 65 years old with symptomatic aortic valve stenosis, the most frequent pathologic finding is a bicuspid aortic valve (normall

Two-dimensional echocardiogram

Fibrous (rheumatic) aortic stenosis

Four types of calcific aortic stenosis

Two-dimensional echocardiogram

Electrocardiogram from an 8-year old boy with valvular aortic stenosis
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

The relation between flow velocity and pressure drop across a discrete obstruction.
The relation between flow velocity and pressure drop across a discrete obstruction.

Aortic valve area using the continuity equation

Systolic pressure gradient and aortic velocity

Aortic Valve
The aortic valve is a semi-lunar valve situated at the root of the aorta receiving oxygenated blood from the left ventricle to be pumped to the rest o

Arrythmias
Causes of Cardiac Arrythmias This term refers to a change from a normal, regular, automatic, heart beat and rhythm to an irregular beat and rhythm. Ca

Electrocardiographic

Atrioventricular-Conduction Disturbances

Proarrhythmic Response

complete heart block

Tachycardia

Supraventricular Tachycardia

WPW Syndrome
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Wolff-Parkinson-White Syndrome

Artery
Structure of blood vessel:Arteries consist of three layers :the innermost intima, the media, and the outermost adventitia

Atria
There are two atria of the heart, left and right

Atherosclerosis, heart disease and cardiology information
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Intravascular Ultrasound

Coronary Angiography

Angiogram

Two Views of the Role of the Acute-Phase
Two Views of the Role of the Acute-Phase Response in Atherothrombosis.

Atherosclerosis, heart disease and cardiology information
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Atherosclerosis, heart disease and cardiology information
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AtrioVentricular Conduction Disturbances

Atrial Fibrillation - an arrhythmia, disorganized atrial electrical activity
Atrial fibrillation is an arrhythmia, characterized by grossly disorganized atrial electrical activity, which is irregular in respect to both rate and

Atrial fibrillation

Atrial fibrillation

Irregular wide QRS tachycardia

Animation

Onset of collision of wavelets

The Autonomic Nervous System
The autonomic nervous system functions involuntarily to control motor functions of the heart, lungs, other internal organs and of the smooth muscles o

Diagrammatic representation of the efferent autonomic innervation of the heart.

Atrial Fibrillation

Postoperative Tachycardia

Diagram

Four-chamber View of Heart

Pulmonary Vein

Gap Eletrogram

Ostial Ablation

Wolff-Parkinson-White Syndrome

24 Hour Holter Monitoring Report

Sustained Ventricular Tachycardia
Sustained ventricular tachycardia(VT) may arise in the conducting system below the bundle of His or in the ventricular myocardium or both lasting 30s

Coronary Arteries

Nonsustained forms of V.T.
Nonsustained forms of V.T.

Repetitive monomorphic VT (RMVT)
Repetitive monomorphic VT (RMVT)

Ventricular Tachycardia
Different forms of sustained potentially fatal VTs.

Different forms of sustained potentially fatal VTs
Different forms of sustained potentially fatal VTs.

Ventricular Tachycardia
Rapid wide QRS tachycardia in female with prior chest wall trauma and left ventricular aneurysm.

Catheter ablation for Ventricular Tachycardia
Rapid wide QRS tachycardia in female with prior chest wall trauma and left ventricular aneurysm.

ICD with antitachycardia pacing
Note VT ending, followed by pacing which converts rhythm back to normal sinus one.

EKG

Bipolar (BP) and unipolar (UP)pacing

Pacing

Electrocaridogram lead II

Electrocaridogram lead II

Electrocaridogram lead II

Medtronic Target Tip

Titanium Electrode

Active fixation lead
Active fixation lead

Stored Ventricular Electrogram
Stored Ventricular Electrogram from an Asymptomatic 35-Year-Old Man

Internal Ventricular Defibrillation
Internal Ventricular Defibrillation

Morphologic compounds of the underlying disease process in HCM.
Morphologic compounds of the underlying disease process in HCM.

Mitral valves

M-mode echocardiographic image

Hypertrophic cardiomyopathy

left ventricular hypertrophy in children with HCM

Two-dimensional echocardiogram

Gross pathology of a dilated cardiomyopathy

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Left ventricular hypertrophy

Transesophageal echocardiographic image of a mobile and protruding thrombus

Precardioversion (left) and postcardioversion (right) images of the left atrial appendage

TEE screening for thrombi

Atrial Flutter
Atrial flutter is a rapid, regular atrial tachyarrhythmia, less common than PSVT's or atrial fibrillation

Two-dimensional echocardiogram from a patient with moderate mitral stenosis

D-transposition of the great arteries

Four-chamber view of heart

Atrial Septal Defect

Atrial Septal Defect

Atrial flutter

Atrial flutter

Atrial flutter

Schematic left anterior oblique view of the atria

Atria
There are two atria of the heart, left and right

Atrial Septal Defect
Atrial septal defect accounts for a third of the adult cases of congenital heart disease, occurring two to three times more frequent in women.

Ventricular Septal Defect

Patent Ductus Arteriosus

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Tetralogy of Fallot

PSVT due to AV nodal reentry

In patients with Eisenmenger's syndrome

Auscultation of the Heart
Auscultation is that part of the physical examination involving the act of listening with a stethoscope to sounds made by the heart, lungs, and blood.

Normal Pulmonic Valve

The apex phonocardiography
The apex phonocardiography is recorded with the mitral valve echocardiogram (left panel) and tricuspid valve echocardiogram (r

The apex phonocardiography
The apex phonocardiography is displayed simultaneously with the cardiac cycle

Base and apex phonocardiograms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Base and apex phonocardiograms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

The effect of changing the PR interval
The effect of changing the PR interval on left ventricular sound and pusher events

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Base and apex phonocardiograms are recorded simultaneously with the aid the apexcardiogram(ADG)

Simultaneous phonocardiograms

equisensitive left ventricular and left atrial pressures

Base and apex phonocardiograms

The apex phonocardiogram

Base and aortic root phonocardiograms

Base and apex phonocardiograms

A prominent aortic valvular ejection sound(AVES)

Simultaneous right ventricular and pulmonary artery pressures

Base and apex phonocardiography phonocardiograms

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A midsystolic nonejection sound C

The aortic (A2) and pulmonic (P2) closure sounds
The aortic (A2) and pulmonic (P2) closure sounds are coincident with the incisurae of their respective arterial traces.

The base and apex phonocardiograms
The base and apex phonocardiograms are recorded simultaneously with the arctic valve echocardiogram.

Normal physiologic splitting
Normal physiologic splitting

Wide physiological splitting of S2
Audible expiratory splitting that widens normally with inspiration is present

The base phonocardiogram
High-fidelity left and right ventricular pressures are recorded with the base phonocardiogram

The phonocardiogram of a patient with severe valvular
The phonocardiogram of a patient with severe valvular pulmonic stenosis

Simultaneous base and apex phonocardiogram
Simultaneous base and apex phonocardiogram recorded together with the carotid pulse during with quiet respiration in a young woman with a large atri

Sound and pressure correlates of S2
Sound and pressure correlates of S2 in a 45 year old woman with the normotensive atrial septal defect

Reversed splitting of S2
Reversed splitting of S2 with paradoxical movement in a patient with complete LBBB

Hypertrophic cardiomyopathy
External sound and aortic root sound are recorded simultaneously with pressures in the left ventricle and central aorta in a patient with hypertrophic

Base and apex phonocardiograms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Atrial diastolic (ADG) and ventncular diastolic (VDG) gallops
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Atrial diastolic (ADG) and ventncular diastolic (VDG) gallops
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Apex phonocardiograms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Diastolic Filling Sounds
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Base and apex phonocardiograins
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Innocent Murmur
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Blood Supply of the Cardiac Conduction System
Cardiology is that branch of medicine which deals with the treatment of heart diseases

Drawing illustrating the normal blood supply of the human ventricular septum

The principal arteries and veins

Myocardial perfusion patterns of major epicardial coronary arteries

Arterial blood supply of the cardiac conduction system

The normal blood supply of the human ventricular septum

Bradycardia

Asymptomatic Bradycardia

Diagram showing change accounting
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Patient with a dual pacemaker
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

An algorithm for choosing a pacemaker model
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Patient with dual-chamber unipolar pacemaker
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Causes of Bradycardia

Bradycardia Evaluation

EKG

EKG

24 hour EKG Holter report

Bradycardia Management

Radiographs

Active Fixation Lead

Trial of external transthoracic pacing

The ventricular trachycardia

Bypass Surgery
Bypass surgery with reference to the heart involves harvesting veins taken from the periphery (especially the legs) and subsequently utilized to byp

Cardiac Tumors
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Transesophageal echocardiogram

Transesophageal Echocardiogram

Transesophagesal Echocardiogram

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Left atrial myxomas

Transesophageal Echocardiograms of a Right Ventricular Myxoma

Cardiology
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Cardiomyopathy
Cardiomyopathy represents a group of diseases of the heart, which involve the heart muscle itself resulting in contractile and relaxation dysfunction

Hypertrophic Cardiomyopathy

Doppler tracing

The Heart of a Boy with Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

http://www.rjmatthewsmd.com/Definitions/pop/74ffig.htm
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Heart Specimen Showing Patchy Deposition of Smudgy Amyloid
Heart Specimen Showing Patchy Deposition of Smudgy Amyloid

UhIs' anomaly
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Gradient-echo image
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Dilated and Hypertrophic Cardiomyopathy

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Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Relationship of neurohormonal activation and production of cardiac myocyte loss
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Heart failure compensatory mechanisms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Relationship between progressive myocardial dysfunction and remodeling
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Right ventricular endomyocardial biopsy
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Cardiac myocyte vacuolization in cases of Adriamycin cardiomyopathy
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Cardiac Conduction System
The conduction system of the heart consists of the following:

Animated Illustration

Congestive heart failure
Congestive heart failure is a condition in which the cardiac muscle does not pump blood efficiently through the various valves of the heart and the re

Two-dimensional apical four-chamber view

Chest roentgenogram of a patient with mitral stenosis

Ventricular Septal Defect
Ventricular Septal Defect (VSD) is the most common congenital heart abnormality in infants and children, with equal frequency in both sexes.

Ventricular Septal Defect

Patent Ductus Arteriosus
The ductus arteriosus connects the descending aorta to the left pulmonary artery

Pulmonary Stenosis
Pulmonary stenosis occurs in 10-12% of cases of congenital heart disease in adults.

Morphology of the normal aortic valve.

Congenital Heart Disease in Adults

The descending aorta and its branches
Schematic diagram of the 10 left ventricular segments

Congenital Heart Disease in Adults

Valvular Deformities

Right ventricular(RV) angiogram

Carcinoid heart disease
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Parachute mitral valve
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Parachute mitral valve
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

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cavf-1b

Diagram showing coronary artery fistula

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Coronary angiography revealed a fistula connecting the left main coronary artery with the right atri...
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Tetralogy of Fallot
Tetralogy of Fallot is characterized by a large ventricular septal deftect (VSD), an aorta that overrides the left and right ventricles, obstruction o

Ebstein's Anomaly
The Ebstein's anomaly is due to a defect in the tricuspid valve (TV) with the septal and posterior leaflets displaced down into the right ventricle, w

Transposition of the Great Arteries
Transposition of the great arteries, the aorta arises in an anterior position from RV and the pulmonary artery arises from LV

23h
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Eisenmenger's Syndrome

Congenital Heart Disease in Adults

Coronary Arteries
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Convalescent Depression After A Myocardial Infarction or Heart Surgery
Convalescent Depression After A Myocardial Infarction or Heart Surgery

Depression
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Depression and Cardiovascular Disease
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Doppler Echocardiogram of the Coronary Artery

Directional Coronary Atherectomy

Electron beam computed tomography (EBCT)
The electrocardiogram is a recording of the electrical activity of the heart as it undergoes excitation (depolarization) and recovery (polarization) t

Stenosis
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Calcium Score Nomogram
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Exclusion of Coronary Calcium
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Aneurysm

Exercise test
Structure of blood vessel:Arteries consist of three layers :the innermost intima, the media, and the outermost adventitia

Signal-Averaged Electrocardiography (SAECG)
In patients vulnerable to sustained ventricular tachycardia(VT) may be found low amplitude, high frequency waveforms in the terminal QRS complex of th

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Spectral temporal map of the SAECG

Techniques of electrophysiology

Intracardiac recordings
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Effects of various filtering frequencies on the morphologic appearance of intracardiac electrograms
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Anterior-posterior view of the right atrium
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Activation of the right atrium during focal atrial tachycardia
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Determination of cardiac refractory periods during atriat pacing
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Induction of supraventricutartachycardia (SVT) in Wolff-Parkinson-White syndrome
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Atrioventricutar (AV) block in the His-Purkinje system (HPS)
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Atrioventricutar (AV) block in the His-Purkinje system (HPS)
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Wide QRS tachycardia
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Wide QRS tachycardia
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Asystole in neurocardiogenic syncope
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Arrhythmic causes of syncope
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Induction of sustained ventricular tachycardia due to bundle branch reentry (BBR)
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Initiation of sustained monomorphic ventricular tachycardia (VT)
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Echocardiography

An M-mode echocardiographic recording

Normal M-mode echocardiographic base-to-apex scan

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Anatomic drawings of the parasternal imaging planes

Two-dimensional parasternal long-axis views from a normal subject.

Two-dimensional parasternal long-axis views from a normal subject.

Two-dimensional parasternal long-axis view

Family of two-dimensional apical views from a normal subject.

Transesophageal echocardiography probe

Ectopic Atrial Tachycardias
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Equipment
The directional atherectomy catheter is advanced over a steerable guide-wire.

Hypertrophic Cardiomyopathy (HCM)
This primary heart disease is due to disorders of sarcomeric proteins of the heart muscle, showing a cellular disarray of myofibrils (fibers of the he

The Heart of a Boy with Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Calcification of the pericardium
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

HCM
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

HCM
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy

Hypertension
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Table 2
Atrial fibrillation in WPW syndrome with accessory pathway conduction

51h

51j

51k

122b

Signal- averaged vector complex

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123a

123b

123c

123d

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Angiotensin Converting Enzyme Inhibitors

Beta-adrenergic Blocking Agents

Table 8
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Table 10
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Table 3
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Table 4
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Table 5
Atrial fibrillation in WPW syndrome with accessory pathway conduction

Cine Images

Interrelation among Renal-Artery Stenosis, Hypertension,and Chronic Renal Failure

Cine Images

Eisenmenger's Syndrome
The Eisenmenger's syndrome consist of a large left (L) to right (R) shunt, which causes severe pulmonary (lung) vascular disease and high blood pressu

Flail Valve
Flail refers to the disorganized, unpredictable, haphazard movement of a leaflet of one of the heart valves.

Myxomatous mitral valve with ruptured posterior leaflet chordae
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Transesophageal echocardiographic four-chamber view of the heart
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Flail posterior leaflet of the mitral valve
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Diagnosis and Therapy of Heart Failure
Diagnosis and Therapy of Heart Failure

Mitral Valve and PMV
Mitral valve is a heart valve, which is composed of two leaflets (anterior and posterior) demarcated by two commissures along an annular ring,separati

106a

Heart Flow

Mitral valve stenosis
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Stereolithographic model of a normal MV
Schematic diagram of the 10 left ventricular segments

Flail posterior leaflet
Schematic diagram of the 10 left ventricular segments

Rheumatic mitral sclerosis

Phonocardiogram with carotid pulse tracing

Pressure records from a patient with rheumatic mitral stenosis

Myocardial Infarction
This term refers to the death of a certain segment of the heart muscle (myocardium), usually the result of a focal complete blockage in one of the mai

Dilatation Catheter

Stents

Untitled Document

Directional atherectomy catheter

Coronary artery dissection
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Coronary artery dissection
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Diagram showing morphologic definition of coronary artery dissections
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Diagram showing change accounting
Taken from three-dimensional echocardiographic and stereolithographic replicas, the next illustration demonstrates mitral valve stenosis

Echocardiogram from a patient with mitral valve prolapse

Mtral regurgitation after successful PMV

Prosthetic heart valves

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Myxomatous mitral valve
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Sequence of percutaneous mitral valvotomy

Aspergillus Fungus Balls from the Mitral Valve

Welcome to Dr.Matthews Site
Magnetic resonance imaging (MRI) is a technique for obtaining high resolution images of various organs within the human body by mapping the distributi

CineImage

Contrast Enhanced Images

Left ventricular dysfunction

Final position of transvenous leads into the cardiac veins

Reduction ventriculoplasty

An intre-aortic balloon pump

Implantable balloon pump

Total Artifical Heart

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Heart transplantation

Intra Aortic Balloon Pump (IABP) Counterpulsation
Diagnosis and Therapy of Heart Failure

Intra aortic balloon (IAB) during systole and diastole
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Schematic representation of coronary blood flow
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Infective endocarditis in adults
Diagnosis and Therapy of Heart Failure

Microbiologic features of native-valve
Microbiologic features of native-valve

Laboratory diagnosis of common causes of culture-negative endocarditis
Laboratory diagnosis of common causes of culture-negative endocarditis

Common Peripheral Manifestations of Infective Endocarditis.
Common Peripheral Manifestations of Infective Endocarditis.

Modified duke criteria for the diagnosis of infective endocarditis
Modified duke criteria for the diagnosis of infective endocarditis

Modified duke criteria for the diagnosis of infective endocarditis
Modified duke criteria for the diagnosis of infective endocarditis

Intravasucular Ultrasound
This procedure involves the percutaneous insertion of an angioplasty like catheter containing miniature ultrasound equipment into the femoral artery o

Lipid Plaque
Is an irregular and eccentrically placed accumulation of fatty material in the walls of the coronary arteries.

COMPLICATIONS OF MYOCARDIAL INFARCTION
This term refers to the death of a certain segment of the heart muscle (myocardium), usually the result of a focal complete blockage in one of the mai

Findings at Autopsy in a Patient with a Simple Ventricular Septal Rupture
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Gross Findings in a Patient with a Posterior Ventricular Septal Rupture
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Transthoracic Two-Dimensional Apical Four-Chamber Views
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Transesophageal Four-Chamber Views
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Myocarditis
Myocarditis represents an inflammation of the heart muscle in many cases due to multiple infectious agents.

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Mitral Valvuloplasty
Closed mitral valvuloplasty is uncommonly performed in this country, but is in some other parts of the world .

Pericardium
The pericardium is a tough, fibrous, outer coating with discrete attachments to the sternum, great vessels, and diaphragm and an inner membranous coa

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Pericardial Effusion
Pericardial effusion is a syndrome in which there is an accumulation of fluid in the pericardial sac

Peripherial Vascular Disease
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Prolapse
Prolapse refers to an abnormal condition or formation of the various four heart valves.

Phonocardiogram and echocardiogram in mitral valve prolapse
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

A parasternal 2-D echocardiographic view
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

PVCs
The common form of PVCs are coupled to the preceding sinus beat by a fixed coupling interval.

http://www.rjmatthewsmd.com/Definitions/pop/94-35abfig.htm
Active fixation lead

Exceptions to the rule for compensatory pauses
Active fixation lead

http://www.rjmatthewsmd.com/Definitions/pop/94-35dfig.htm
Active fixation lead

Ladder diaagram for analysis of cardiac arrhythmias
Active fixation lead

Hypertension
It is a vascular disease but is oddly confined to the small pulmonary arterioles, where intimal fibrosis and medial hypertrophy lead sequentially to v

Pulmonary Valve
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Robert Matthews MD
Rheumatic fever is a sequel of Group A Beta hemolytic streptococcal upper respiratory tract infection in the age group 5-15 yrs, and young adults

Stent
A stent is a endovascular cylindrical, mesh-like, but dilatable structure (by ballon catheter), which is inserted into various atherosclerotic arteri

A Metal Stent

Stent Engineering Data
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram in three patients with chronic rheumatic mitral valvul

Supraventricular Tachyarrhythmias
Supraventricular tachyarrhythmias (SPVT) are characterized by rapid, irregular heart beats associated with an atrial rate of a 100 or more a minute;

Orthodromic supraventricular tachycardia, SVT
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Orthodromic supraventricular tachycardia, SVT
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Orthodromic supraventricular tachycardia, SVT
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Orthodromic supraventricular tachycardia, SVT
Base and apex phonocardiograms are recorded simultaneously with the mitral valve echocardiogram

Temporary Pacing
Transvenous temporary pacing

Tinnitus
In patients younger than 65 years old with symptomatic aortic valve stenosis, the most frequent pathologic finding is a bicuspid aortic valve (normall

Tricuspid Valve
The tricuspid heart valve as an inlet allows unoxygenated blood to flow from the right atrium to the right ventricle of the heart

Valves
Replacement Heart Valves

Venous Pulse
Congestive heart failure is a condition in which the cardiac muscle does not pump blood efficiently through the various valves of the heart and the re

Ventricle
The heart has two ventricles, which includes a right and a left one.

Ventricular Fibrillation
Ventricular fibrillation is a terminal arrhythmia, uniformly requiring rapid initiation of emergency measures.

Congenital Heart Disease in Adults

Transposition and Switching of the Great Arteries

Hypertension
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Hypertension
It is a vascular disease but is oddly confined to the small pulmonary arterioles, where intimal fibrosis and medial hypertrophy lead sequentially to v

Obstructive sleep apnea
Transvenous temporary pacing

List of Illustrations

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Cardiology is that branch of medicine which deals with the treatment of heart diseases

EKG