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- M.A.Lateef Siddiqu
 Abnormal heart sounds are known as Cardiac
Murmurs.
 Cardiac Murmurs are produced due to turbulent
blood flow within the heart and great vessels i.e.
Aorta and Pulmonary trunk.
WHAT ARE CARDIAC MURMURS ?
High Flow
Velocity
Small Orifice
Diameter
Low Kinetic
Viscosity
Turbulence
MURMUR
HOW IS A MURMUR PRODUCED?
HOW ARE NORMAL HEART SOUNDS PRODUCED ?
 Normal heart sounds are Lub Dub.
 Lub is the first heart sound S1. It is long and loud. It is produced
due to closure of atrio-ventricular (AV) valves i.e. Tricuspid and
Mitral Valves.
 Dub is the second heart sound S2. It is short and sharp. It is
produced due to closure of semi-lunar valves i.e. aortic valve
and pulmonary valve.
 S1 and S2 are best heard at apex beat i.e. left 5th intercostal
space in the mid-clavicuar line.
 Third heart sound S3 is also produced during rapid
ventricular filling.
 It is a short and low pitched sound which is normally not
heard by the stethoscope, it can be heard only by using
Microphone.
 Third heart sound can be heard in children and Atheletes.
 In pathological conditions like Aortic Regurgitation, Cardiac
Failure and Cardio Myopathy it can be heard by
Stethoscope.
 It can be heard best with the help of bell of Stethoscope at
the apex beat area when the patient is in Left Lateral
Position.
HOW ARE NORMAL HEART SOUNDS PRODUCED ?
 Fourth heart sound S4 is also inaudible sound.
 It is produced during Atrial Systole.
 It is a short and low pitched sound which is audible in
Pathological Conditions like Ventricular Hypertrophy, Aortic
Stenosis.
 It can be heard best with the help of bell of Stethoscope at
the apex beat area when the patient is in Supine or Left Semi-
lateral Position.
HOW ARE NORMAL HEART SOUNDS PRODUCED ?
CLASSIFICATION OF MURMURS
SYSTOLIC
MURMURS
DIASTOLIC
MURMURS
CONTINUOUS
MURMURS
SYSTOLIC MURMURS
Systolic murmurs begin with or after
the first heart sound (S1) and
terminate at or before the
component (A2 or P2) of the second
heart sound (S2).
 Incompetence of Atrio Ventricular Valves.
 Stenosis of Semi lunar Valves.
 Septal Defect.
 Coarctation of Aorta.
 Anaemia.
CAUSES RESPONSIBLE FOR SYSTOLIC MURMUR
MITRAL REGURGITATION
Retrograde flow from the left ventricle through
an incompetent mitral valve into the left atrium is
known as Mitral Regurgitation.
 Time- pan/holo systolic
 Location- apex beat area, radiates to left axilla
 Best Heard- when patient lies on left side
 Characteristics- soft, high-pitched, blowing
 Associated Symptoms- MV prolapse, MV myxomatous
degeneration, rheumatic heart disease,
cardiomyopathy, endocarditis
TRICUSPID REGURGITATION
Retrograde flow from the right ventricle
through an incompetent tricuspid valve into the right
atrium is known as Tricuspid Regurgitation.
 Time- pan/holo systolic
 Location- left 3rd, 4th inter costal spaces
 Best Heard- when patient inspires deeply
 Characteristics- high-pitched, louder with inspiration
 Associated Symptoms- Jugular Venous Pulsation, TV
myxomatous degeneration, rheumatic heart disease,
cardiomyopathy, Systolic hepatic Pulsations.
Narrowing of the aortic valves is known as
aortic stenosis. It causes obstruction of blood flow
from the left ventricle into the ascending aorta.
 Time- mid-systolic
 Location- right 2nd intercostal space, radiates to carotid
region
 Best Heard- when patient bends slightly forwards
 Characteristics- harsh, loud, may have associated thrill,
“ejection click”
 Associated Symptoms- older age, bicuspid aortic valve,
rheumatic fever, left ventricular hypertrophy
AORTIC STENOSIS
PULMONARY STENOSIS
 Time- Mid-Systolic
 Location- Left 2nd inter costal space
 Best Heard- when patient bends slightly forward and
breathes out
 Characteristics- harsh, loud, may have associated
thrill, “ejection click”
 Associated Symptoms- older age, rheumatic fever,
Ventricular septal defect, Dextro position of Aorta,
Right Ventricular hypertrophy
Narrowing of the pulmonary valve causing
obstruction of flow from the right ventricle into the
pulmonary trunk is known as Pulmonary Stenosis.
ATRIAL SEPTAL DEFECT
A congenital abnormality in which blood
flows from left atrium into right atrium through a
hole is known as Atrial Septal Defect.
 Time- Mid systolic
 Location- 3rd, 4th left inter costal spaces
 Best Heard- when patient bends slightly forwards
 Characteristics- harsh, loud, splitting of heart
sound
 Associated symptoms- cyanosis, dyspnoea,
ventricular hypertrophy
VETRICULAR SEPTAL DEFECT
A congenital abnormality in which blood
flows from high pressure LV to low pressure RV
through a hole is known as Ventricular Septal Defect.
 Time- pan/holosystolic
 Location- 3rd, 4th, 5th left inter costal spaces
 Best Heard- when patient lies on left side
 Characteristics- harsh, loud
 Associated symptoms- alone or associated with
pulmoary stenosis
DIASTOLIC MURMURS
Diastolic murmurs begin with or
after the S2 and end at or before the
subsequent S1.
 Stenosis of Atrio Ventricular Valves.
 Incompetence of Semi lunar Valves.
CAUSES RESPONSIBLE FOR DIASTOLIC MURMUR
MITRAL STENOSIS
Obstruction of flow from left atrium to left
ventricle because of a narrowed mitral orifice is
known as Mitral Stenosis.
 Time- Mid-Diastolic
 Location- Apex
 Best Heard- with bell while patient lies on left side
 Characteristics- low pitched
 Associated Symptoms- Rheumatic fever
TRICUSPID STENOSIS
Obstruction of flow from right atrium to
right ventricle because of a narrowed Tricuspid
orifice is known as Tricuspid Stenosis.
 Time- Mid-Diastolic
 Location- Left 2nd, 3rd inter costal space
 Best Heard- with bell while patient bends
forwards
 Characteristics- low pitched
 Associated Symptoms- Rheumatic fever, almost
always accompanies with mitral stenosis
AORTIC REGURGITATION
Retrograde flow from the aorta into the left
ventricle through incompetent aortic cusps is known as
Aortic Regurgitation.
 Time- Early-Diastolic
 Location- 2nd-4th left intercostal spaces
 Best Heard- during expiration with patient leaning
forwards
 Characteristics- high-pitched, blowing
 Associated Symptoms- aortic root degeneration,
rheumatic heart disease, VSD, aortic valve prolapse (kids)
CONTINUOUS MURMURS
Continuous murmurs are not
confined to either phase of the
cardiac cycle but instead begin in
early systole and proceed through S2
into all or part of diastole, they are
uninterrupted by valve closure.
Failure of the ductus arteriosis (duct
between pulmonary artery and aorta) to close
after birth
 Time- Continuous
 Location- upper left sternal border at the level of
2nd inter costal space
 Characteristics- machine-like
 Associated Symptoms- aorta to pulmonary shunt,
cyanosis
PATENT DUCTUS ARTERIOSIS
 Pericardial Rubs occurs due to friction produced by
heart movements.
 Venous Hum is present at the upper region of chest,
produced due to obstruction in JVF.
PERICARDIAL RUBS & VENOUS HUMS
Cardiac Murmur by Dr.M.A.Lateef Siddiqui

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Cardiac Murmur by Dr.M.A.Lateef Siddiqui

  • 2.  Abnormal heart sounds are known as Cardiac Murmurs.  Cardiac Murmurs are produced due to turbulent blood flow within the heart and great vessels i.e. Aorta and Pulmonary trunk. WHAT ARE CARDIAC MURMURS ?
  • 3. High Flow Velocity Small Orifice Diameter Low Kinetic Viscosity Turbulence MURMUR HOW IS A MURMUR PRODUCED?
  • 4. HOW ARE NORMAL HEART SOUNDS PRODUCED ?  Normal heart sounds are Lub Dub.  Lub is the first heart sound S1. It is long and loud. It is produced due to closure of atrio-ventricular (AV) valves i.e. Tricuspid and Mitral Valves.  Dub is the second heart sound S2. It is short and sharp. It is produced due to closure of semi-lunar valves i.e. aortic valve and pulmonary valve.  S1 and S2 are best heard at apex beat i.e. left 5th intercostal space in the mid-clavicuar line.
  • 5.  Third heart sound S3 is also produced during rapid ventricular filling.  It is a short and low pitched sound which is normally not heard by the stethoscope, it can be heard only by using Microphone.  Third heart sound can be heard in children and Atheletes.  In pathological conditions like Aortic Regurgitation, Cardiac Failure and Cardio Myopathy it can be heard by Stethoscope.  It can be heard best with the help of bell of Stethoscope at the apex beat area when the patient is in Left Lateral Position. HOW ARE NORMAL HEART SOUNDS PRODUCED ?
  • 6.  Fourth heart sound S4 is also inaudible sound.  It is produced during Atrial Systole.  It is a short and low pitched sound which is audible in Pathological Conditions like Ventricular Hypertrophy, Aortic Stenosis.  It can be heard best with the help of bell of Stethoscope at the apex beat area when the patient is in Supine or Left Semi- lateral Position. HOW ARE NORMAL HEART SOUNDS PRODUCED ?
  • 8. SYSTOLIC MURMURS Systolic murmurs begin with or after the first heart sound (S1) and terminate at or before the component (A2 or P2) of the second heart sound (S2).
  • 9.  Incompetence of Atrio Ventricular Valves.  Stenosis of Semi lunar Valves.  Septal Defect.  Coarctation of Aorta.  Anaemia. CAUSES RESPONSIBLE FOR SYSTOLIC MURMUR
  • 10. MITRAL REGURGITATION Retrograde flow from the left ventricle through an incompetent mitral valve into the left atrium is known as Mitral Regurgitation.  Time- pan/holo systolic  Location- apex beat area, radiates to left axilla  Best Heard- when patient lies on left side  Characteristics- soft, high-pitched, blowing  Associated Symptoms- MV prolapse, MV myxomatous degeneration, rheumatic heart disease, cardiomyopathy, endocarditis
  • 11. TRICUSPID REGURGITATION Retrograde flow from the right ventricle through an incompetent tricuspid valve into the right atrium is known as Tricuspid Regurgitation.  Time- pan/holo systolic  Location- left 3rd, 4th inter costal spaces  Best Heard- when patient inspires deeply  Characteristics- high-pitched, louder with inspiration  Associated Symptoms- Jugular Venous Pulsation, TV myxomatous degeneration, rheumatic heart disease, cardiomyopathy, Systolic hepatic Pulsations.
  • 12. Narrowing of the aortic valves is known as aortic stenosis. It causes obstruction of blood flow from the left ventricle into the ascending aorta.  Time- mid-systolic  Location- right 2nd intercostal space, radiates to carotid region  Best Heard- when patient bends slightly forwards  Characteristics- harsh, loud, may have associated thrill, “ejection click”  Associated Symptoms- older age, bicuspid aortic valve, rheumatic fever, left ventricular hypertrophy AORTIC STENOSIS
  • 13. PULMONARY STENOSIS  Time- Mid-Systolic  Location- Left 2nd inter costal space  Best Heard- when patient bends slightly forward and breathes out  Characteristics- harsh, loud, may have associated thrill, “ejection click”  Associated Symptoms- older age, rheumatic fever, Ventricular septal defect, Dextro position of Aorta, Right Ventricular hypertrophy Narrowing of the pulmonary valve causing obstruction of flow from the right ventricle into the pulmonary trunk is known as Pulmonary Stenosis.
  • 14. ATRIAL SEPTAL DEFECT A congenital abnormality in which blood flows from left atrium into right atrium through a hole is known as Atrial Septal Defect.  Time- Mid systolic  Location- 3rd, 4th left inter costal spaces  Best Heard- when patient bends slightly forwards  Characteristics- harsh, loud, splitting of heart sound  Associated symptoms- cyanosis, dyspnoea, ventricular hypertrophy
  • 15. VETRICULAR SEPTAL DEFECT A congenital abnormality in which blood flows from high pressure LV to low pressure RV through a hole is known as Ventricular Septal Defect.  Time- pan/holosystolic  Location- 3rd, 4th, 5th left inter costal spaces  Best Heard- when patient lies on left side  Characteristics- harsh, loud  Associated symptoms- alone or associated with pulmoary stenosis
  • 16. DIASTOLIC MURMURS Diastolic murmurs begin with or after the S2 and end at or before the subsequent S1.
  • 17.  Stenosis of Atrio Ventricular Valves.  Incompetence of Semi lunar Valves. CAUSES RESPONSIBLE FOR DIASTOLIC MURMUR
  • 18. MITRAL STENOSIS Obstruction of flow from left atrium to left ventricle because of a narrowed mitral orifice is known as Mitral Stenosis.  Time- Mid-Diastolic  Location- Apex  Best Heard- with bell while patient lies on left side  Characteristics- low pitched  Associated Symptoms- Rheumatic fever
  • 19. TRICUSPID STENOSIS Obstruction of flow from right atrium to right ventricle because of a narrowed Tricuspid orifice is known as Tricuspid Stenosis.  Time- Mid-Diastolic  Location- Left 2nd, 3rd inter costal space  Best Heard- with bell while patient bends forwards  Characteristics- low pitched  Associated Symptoms- Rheumatic fever, almost always accompanies with mitral stenosis
  • 20. AORTIC REGURGITATION Retrograde flow from the aorta into the left ventricle through incompetent aortic cusps is known as Aortic Regurgitation.  Time- Early-Diastolic  Location- 2nd-4th left intercostal spaces  Best Heard- during expiration with patient leaning forwards  Characteristics- high-pitched, blowing  Associated Symptoms- aortic root degeneration, rheumatic heart disease, VSD, aortic valve prolapse (kids)
  • 21. CONTINUOUS MURMURS Continuous murmurs are not confined to either phase of the cardiac cycle but instead begin in early systole and proceed through S2 into all or part of diastole, they are uninterrupted by valve closure.
  • 22. Failure of the ductus arteriosis (duct between pulmonary artery and aorta) to close after birth  Time- Continuous  Location- upper left sternal border at the level of 2nd inter costal space  Characteristics- machine-like  Associated Symptoms- aorta to pulmonary shunt, cyanosis PATENT DUCTUS ARTERIOSIS
  • 23.  Pericardial Rubs occurs due to friction produced by heart movements.  Venous Hum is present at the upper region of chest, produced due to obstruction in JVF. PERICARDIAL RUBS & VENOUS HUMS