Mitral Valve Stenosis
Patient (condition)
 
Aliases:
MVS
Mitral stenosis
MV Stenosis

Topic aliases are alternate phrasings for a particular topic.


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Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.
www.nlm.nih.gov/cgi/mesh/...

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If severe, symptomatic disease, ensure any incidental surgery is booked to be done in-hours by consultant anaesthetist and consultant surgeon.

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Jul 02, 2011
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If the patient awaiting valve repair develops relapsing sepsis (eg cholelithiasis/biliary sepsis), it may be better to accept higher risk to deal with the septic focus (cholecystectomy), than risk recurrence of the sepsis after the valve repair

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Apr 06, 2012
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Avoid tachycardia. Sufficient diastolic time required for adequate atrial emptying. (fixed cardiac output)

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May 18, 2011
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Maintain high normal preload.

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Maintain sinus rhythm, as these patients have an increased dependence on atrial contraction for ventricular filling.

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Signs of severity include exertional dyspnoea, orthopnea, palpitations, & haemoptysis

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May 18, 2011
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Spinal or epidural loading introduces risk of decreased preload, tachycardia, & decompensation.

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Valve area:
Normal >5 cm2;
Symptomatic 2.5 cm2;
Moderate 1-1.5 cm2;
Critical <1.0 cm2

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