Mitral stenosis stages: Difference between revisions
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==Stages of Mitral Stenosis== | |||
{{ | Shown below is a table depicting 4 stages of mitral stenosis, adapted from 2014 AHA/ACC guidelines for management of valvular heart diseases.<ref name="pmid24589852">{{cite journal| author=Nishimura RA, Otto CM, Bonow RO, Carabello BA, Erwin JP, Guyton RA et al.| title=2014 AHA/ACC Guideline for the Management of Patients With Valvular Heart Disease: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. | journal=Circulation | year= 2014 | volume= | issue= | pages= | pmid=24589852 | doi=10.1161/CIR.0000000000000029 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24589852 }} </ref> | ||
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|'''D'''||Symptomatic severe [[MS]]||❑ Commissural fusion and diastolic doming of [[mitral valve]]<br> ❑ MVA ≤ 1.5 cm<sup>2</sup>||❑ MVA ≤ 1.5 cm<sup>2</sup><br>❑ MVA ≤ 1 cm<sup>2</sup> in very severe [[MS]]<br>❑ Diastolic pressure half time ≥ 150 ms<br> ❑ Diastolic pressure half time ≥ 220 ms with very severe [[MS]]||❑ Severe left atrial enlargement<br>❑ PASP > 30 mm Hg||❑ [[Dyspnea]] on exertion<br>❑ Decreased exercise tolerance | |'''D'''||Symptomatic severe [[MS]]||❑ Commissural fusion and diastolic doming of [[mitral valve]]<br> ❑ MVA ≤ 1.5 cm<sup>2</sup>||❑ MVA ≤ 1.5 cm<sup>2</sup><br>❑ MVA ≤ 1 cm<sup>2</sup> in very severe [[MS]]<br>❑ Diastolic pressure half time ≥ 150 ms<br> ❑ Diastolic pressure half time ≥ 220 ms with very severe [[MS]]||❑ Severe left atrial enlargement<br>❑ PASP > 30 mm Hg||❑ [[Dyspnea]] on exertion<br>❑ Decreased exercise tolerance | ||
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==References== | |||
{{Reflist|2}} | |||
Revision as of 00:44, 10 March 2014
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Stages of Mitral Stenosis
Shown below is a table depicting 4 stages of mitral stenosis, adapted from 2014 AHA/ACC guidelines for management of valvular heart diseases.[1]
| Stage | Definition | Valve Anatomy | Valve Hemodynamics | Hemodynamic Consequences | Symptoms |
| A | At risk of MS | ❑ Mild diastolic doming of mitral valve leaflets | ❑ Normal transmitral velocity | None | None |
| B | Progressive MS | ❑ Commissural fusion and diastolic doming of mitral valve ❑ Mitral valve area (MVA) > 1.5 cm2 (planimetered) |
❑ Increased transmitral flow velocities ❑ MVA > 1.5 cm2 ❑ Pressure half time during diastole < 150 ms |
❑ Mild to moderate left atrial enlargement ❑ Normal pulmonary pressure at rest |
None |
| C | Asymptomatic severe MS | ❑ Commissural fusion and diastolic doming of mitral valve ❑ MVA ≤ 1.5 cm2 ❑ MVA ≤ 1 cm2 in very severe MS |
❑ MVA ≤ 1.5 cm2 ❑ MVA ≤ 1 cm2 in very severe MS ❑ Diastolic pressure half time ≥ 150 ms ❑ Diastolic pressure half time ≥ 220 ms with very severe MS |
❑ Severe left atrial enlargement ❑ PASP > 30 mm Hg |
None |
| D | Symptomatic severe MS | ❑ Commissural fusion and diastolic doming of mitral valve ❑ MVA ≤ 1.5 cm2 |
❑ MVA ≤ 1.5 cm2 ❑ MVA ≤ 1 cm2 in very severe MS ❑ Diastolic pressure half time ≥ 150 ms ❑ Diastolic pressure half time ≥ 220 ms with very severe MS |
❑ Severe left atrial enlargement ❑ PASP > 30 mm Hg |
❑ Dyspnea on exertion ❑ Decreased exercise tolerance |
References
- ↑ Nishimura RA, Otto CM, Bonow RO, Carabello BA, Erwin JP, Guyton RA; et al. (2014). "2014 AHA/ACC Guideline for the Management of Patients With Valvular Heart Disease: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines". Circulation. doi:10.1161/CIR.0000000000000029. PMID 24589852.