Left Atrium: Difference between revisions

Revision as of 17:14, 18 November 2013

	Women				Men
	Reference range	Mildly abnormal	Moderately abnormal	Severely abnormal	Reference range	Mildly abnormal	Moderately abnormal	Severely abnormal
Atrial dimensions
LA diameter, cm	2.7–3.8	3.9–4.2	4.3–4.6	≥4.7	3.0–4.0	4.1–4.6	4.7–5.2	≥5.2
LA diameter/BSA, cm/m2	1.5–2.3	2.4–2.6	2.7–2.9	≥3.0	1.5–2.3	2.4–2.6	2.7–2.9	≥3.0
RA minor-axis dimension, cm	2.9–4.5	4.6–4.9	5.0–5.4	≥5.5	2.9–4.5	4.6–4.9	5.0–5.4	≥5.5
RA minor-axis dimension/BSA, cm/m2	1.7–2.5	2.6–2.8	2.9–3.1	≥3.2	1.7–2.5	2.6–2.8	2.9–3.1	≥3.2
Atrial area
LA area, cm2	≤20	20–30	30–40	>40	≤20	20–30	30–40	>40
Atrial volumes
LA volume, mL	22–52	53–62	63–72	≥73	18–58	59–68	69–78	≥79
LA volume/BSA, mL/m2	22 ± 6	29–33	34–39	≥40	22 ± 6	29–33	34–39	≥40
Bold values: Recommended and best validated.



Click here for calculation of LA pressure by mitral regurgitation.

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 |align="center"|69–78
 |align="center"|≥79
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 !LA volume/BSA, mL/m2
 !22 ± 6
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-|[[Image:400px-LAP normalEF svg.png|350px]]
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-|[[Image:400px-LAP reducedEF svg.png|350px]]
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+|[[Image:400px-LAP reducedEF svg.png]]
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 |colspan="2"|Click [http://csecho.ca/cardiomath/?eqnHD=echo&eqnDisp=lapmr '''here'''] for calculation of LA pressure by mitral regurgitation.