For two and a half years we have conducted a medical clinic in connection with the obstetric clinics of the Chicago Lying-In Hospital and Dispensary. This was established for the purpose of cooperating with the obstetricians in the care of those women who had some medical complication of their pregnancy. Chief among the complications is heart disease.
To the clinic are referred by the obstetricians all patients who, because of symptoms or physical signs, are suspected of having cardiac disease. These patients are subjected to careful examination and observation to prove or disprove the suspicion. Only about 50 per cent, of those referred have real organic heart changes. There is another group, the frequency of which we have no means of knowing, who have no symptoms and in whom the signs may be overlooked during casual examination, who have definite cardiac disease though its existence has not been suspected. These
DALY PA. THE HEART IN PREGNANCY. JAMA. 1924;82(18):1439–1441. doi:10.1001/jama.1924.02650440033012