A 28-year-old pregnant woman was hospitalized into the inpatient department. Her diagnosis is as follows: pregnancy III, 7-8 weeks of gestation; rheumatism, inactive phase, III degree mitral stenosis. What is the management plan for this patient?

Answer options

1. Prescription of corticosteroids and immunosuppressants
2. Medically-indicated termination of the pregnancy
3. Maintenance of the pregnancy, surgical treatment of the valvular defect (mitral commissurotomy)
4. Maintenance of the pregnancy, planned hospitalization during the critical periods, conservative therapy
5. Termination of the pregnancy after surgical treatment of the valvular defect (mitral commissurotomy)