In 1979 combined medical clinics were introduced so that women with medical disorders would be cared for jointly by a specialist in Obstetrics and Gynaecology and a specialist in clinical medicine. This introduced the concept of sub specialization in maternity care.
The establishment of the Intensive Care Units for the mothers and that for the new born babies has provided major improvement in the care of high risk and life threatening situations. DSHW was declared a "Baby Friendly Hospital" by the UNICEF and the Government of Sri Lanka in 1992 and received the "Taiki Akimoto 5S Award" in 2003 for the best implementation of "5S" in the service sector. These achievements have been possible due to the joint efforts of generations of all grades of staff of the institution, the members of the de Soysa family, the volunteers serving in the Hospital Welfare Committee and the leadership provided by the hospital administrators.