Why could be the reason for breathing difficulty in breathing after mitral valve replacement?

Hello,

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I have gone through all the history you provided here. Your mother is currently suffering from two different problems. Mitral valve replacement followed by mild MR and TR as well as atrial fibrillation, are distinct cardiac problems. And according to you, she is taking prescribed medicines regularly. After going through the CT scans images (attachment removed to protect patient identity), it looks like she is suffering from some infective lesions in the lungs, most probably pulmonary tuberculosis (PTB).

She is having breathing difficulty with low oxygen saturation, probably due to underlying lung infection. To confirm the diagnosis, further sputum tests are advised for sputum AFB (acid-fast bacilli) and culture tests. If no sputum sample is available, then induce sputum by nebulization with saline solution or perform a bronchoscopy. You are advised to consult pulmonologist doctor who will evaluate history and will advise recommended tests and medicines if required. Currently, symptomatic management includes oxygen supplementation with a high protein diet.

Continue all cardiac medicines as advised. Depending upon the sputum AFB report, further treatment can be planned. I hope I have cleared all your doubts. In case you have any questions please do not hesitate to contact me again.