Effect of therapy on the neutropenia of hyperthyroidism
Observations in a patient with recurrent hyperthyroidism, each time associated with neutropenia which resolved after therapy, prompted a chart review of other patients referred for radioactive iodine therapy. Of 99 untreated patients, 18 had neutrophil counts of less than 2,000/cu mm. After therapy with either thionamides or /sup 131/I, 41 of 53 (77%) evaluable patients had an increase in neutrophil count. Eleven of these evaluable patients had neutropenia before therapy; after therapy, all 11 had an increase in their neutrophil counts into the normal range, with a mean increase of 170%. In one patient, studies on the mechanism of neutropenia indicate that bone marrow production and reserve remain normal and that circulating neutrophils are normally marginated. A decreased neutrophil circulation time may be the cause of neutropenia associated with hyperthyroidism.
- Research Organization:
- Division of Hematology-Oncology and Endocrinology, Department University of Texas Medical Branch, Galveston
- OSTI ID:
- 5742753
- Journal Information:
- South. Med. J.; (United States), Vol. 76:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYPERTHYROIDISM
RADIOTHERAPY
IODINE 131
NEUTROPHILS
PATIENTS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY FLUIDS
DAYS LIVING RADIOISOTOPES
DISEASES
ENDOCRINE DISEASES
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPES
LEUKOCYTES
MATERIALS
MEDICINE
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
RADIOLOGY
THERAPY
550604* - Medicine- Unsealed Radionuclides in Therapy- (1980-)