Faculty
John A. Penner, M.D., Professor Emeritus, Division Chief
Houria I. Hassouna, M.B.B.Ch., Ph.D., Professor

Overview
The Division of Thrombosis in the Department of Medicine is an academic unit dedicated to teaching, research, and service in the general field of hematology focusing on bleeding and clotting disorders.

The Division’s personnel, Houria Hassouna, M.D., Ph.D. and John A. Penner, M.D., Emeritus Professor of Hematology, are internationally recognized for their expertise and have contributed extensively to knowledge on subjects of hemostasis and thrombosis. The Division includes a special coagulation laboratory directed by Dr. Hassouna and federally-funded centers for hemophilia and thrombosis management. Specific activities are categorized as follows:

Teaching:
Drs. Hassouna and Penner are involved in multiple levels of teaching with an emphasis on educating housestaff about coagulation disorders. Postgraduate lecture programs have been presented to local, regional, and international audiences, non-clinical as well as basic science topics related to hemostasis and thrombosis as well as general hematology teaching for a great number of medical residents. Many of the residents under Dr. Hassouna’s tutelage have secured, with her support, fellowship programs in prestigious institutions.
A unique teaching activity in the Division is the International Penner Blood Coagulation Conference which has met previously in various areas of the world, including Malta, Cairo, and Hawaii.

Service:
Both inpatient and outpatient consultations are provided by the Division. Inpatient hematology consultations are offered at Sparrow Hospital and Ingham Medical Center on a daily basis. Outpatient clinics are held at the Clinical Center. Patients are referred from a wide area locally as well as regionally and represent complex hematological disorders often referred by their physicians for second opinions.

Research:
The Division participates in a number of clinical research projects in relation to hemophilia, infectious diseases, and thrombosis. The diagnostic unit under Dr. Hassouna’s direction has engaged extensively in clinical laboratory investigation as well as basic science projects, the latter dealing with coagulation factor function and genetic mutation. Both clinical and laboratory evaluations are directed to determining the underlying causes of thrombosis or bleeding as manifested by each individual patient.