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Murmurs
1. Murmurs
Dr. Kalpana Malla
MBBS MD (Pediatrics)
Manipal Teaching Hospital
Download more documents and slide shows on The Medical Post [ www.themedicalpost.net ]
3. Murmurs
• Turbulence in blood flow at or near valve -
flow murmur
• An abnormal communication within heart –
shunt murmur
• Heart murmurs may be present without any
heart disease
5. INNOCENT MURMURS:
Also known as flow, benign, non pathologic,
functional, inorganic physiologic
Occur in up to - 77% of neonates
- 66% of children
- 90% with exercise
6. What are Innocent Murmurs?
- Due to physiological turbulence of blood within
normal anatomical heart
- No structural cardiac Ds
- No hemodynamic abnormalities
- Become prominent – fever, anxiety, anemia,
infections
7. Character of IM
• Systolic soft grade 2 ** exception venous hum
– continuous murmur
• No thrill
• Intensity variable – change with posture
• Normal pulse
• Normal S2
• Normal CXR & ECG
10. Systolic Murmurs
2. Ejection systolic (Midsystolic)
- Innocent M
- Flow M – all flow M in VSD,ASD,PDA
- Aortic valve sclerosis
- Aortic outflow obstruction - Aortic stenosis
3. Late systolic M
- MV prolapse
- TV prolapse
11. Diastolic murmurs
• Early diastolic M
- Aortic Regurgitation
- Pulmonary R
• Mid – Diastolic M
– MS
– TS
– Artial myxoma
– ↑ flow across AV valve
– Austin Flint M
– Carey- Coombs M
17. Vibratory Still’s Murmur
Most common innocent murmur of
childhood
Age — 2 to 6 years, rare in teens
Etiology—unknown, may be associated
with LV ejection
18. Still’s Murmur
Location—max at LLSB, LMSB
Character—vibratory, groaning, musical
Radiation— apex,
Timing—mid-systole
Intensity—grade I-II
Pitch—mid to low
19. Still’s Murmur ……
Variation—
Loudest - supine, after exercise, with
fever, anemia, or excitement
Disappears or localizes to LLSB when upright
Normal ECG
20. 2. Pulmonary Systolic Murmur:
Age — common 8-14 years
Etiology—normal ejection vibrations
,turbulence through PV
Intensity— mid systolic grade I-III
Location - ULSB
Pitch—mid to high-pitched
Character—soft, blowing, somewhat
grating, diamond-shaped
22. Physiological Pulmonary flow
murmur of neonate
Age —newborns. May last 3 – 6 months
Etiology— turbulence and relative
obstruction at PA bifurcation due to acute
angle at birth
23. Physiological Pulmonary flow murmur
of neonate
Location—LUSB
Radiation—LMSB, bilateral axillae, mid-
back
Timing—early to mid-systole
25. 4. Carotid Bruit
• Bruit is French for “noise”
• Age range—children and young adults
• Etiology— turbulence at take off of carotid
or brachiocephalic vessels
26. Carotid Bruit (Characteristics):
Location—neck - suprasternal
notch, supraclavicular areas
Radiation—carotids, below clavicles
Timing—early to mid-systole (grade I-III)
Character—may be slightly harsh
Arise in carotid or subclavian arteries
28. 5. Venous Hum:
Second most common innocent murmur
Etiology—turbulence in jugular and subclavian
venous return meeting in SVC
Age - pre-school
Adololescents - can be + w/ increased blood
flow states e.g. anemia, pregnancy,
thyrotoxicosis
29. Venous Hum
Location—anterior neck to mid-infraclavicular
area, R side > L side
Radiation—may go to LMSB
Intensity—grade I-III
Pitch—mid to low
Character— continuous ,soft, whispering,
roaring, or blowing
30. Venous Hum
Variation—
Disappears - supine position,
- with gentle manual compression
of jugular vein
- with head turn AWAY from the side
31. Thank you
Download more documents and slide shows on The Medical Post
[ www.themedicalpost.net ]