If the patient has a history of mitral valve regurgitation, this condition can lead to changes in heart function, particularly symptoms like palpitations and difficulty breathing. If the symptoms decrease during inhalation, this might be caused by abnormally low pressure in the left ventricle or left atrium. Since this is a pathological change, it is currently recommended that the patient actively use medication and control changes in heart function. If the condition worsens, sometimes surgical treatment is advised as it can also serve a therapeutic purpose.