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In-111-labeled platelet scintigraphies in patients with chronic hepatitis C
Shyh-Jen Wang1, Shih-Chuan Tsai, Gran-Hum Chen
1Department of Nuclear Medicine, Taichung Veterans General Hospital, No. 160, Sec. 3, Taichung Harbor Road, Taichung 407, Taiwan.
Insights
Hepatitis C patients with low platelet counts (thrombocytopenia) may not have enlarged spleens (hypersplenism). Indium (In-111) oxine-labeled platelet scintigraphy showed no significant spleen-to-heart or spleen-to-liver ratio differences in chronic hepatitis C patients with or without thrombocytopenia.
Area of Science:
- Hepatology
- Nuclear Medicine
- Hematology
Background:
- Chronic hepatitis C is frequently linked to thrombocytopenia.
- Indium (In-111) oxine-labeled platelet scintigraphy is a key diagnostic tool for evaluating thrombocytopenia mechanisms.
- This study investigates platelet kinetics in chronic hepatitis C patients.
Purpose of the Study:
- To evaluate patients with chronic hepatitis C using In-111 oxine-labeled platelet scintigraphy.
- To assess the role of hypersplenism in thrombocytopenia associated with chronic hepatitis C.
Main Methods:
- Eleven patients with chronic hepatitis C were studied.
- Patients were divided into two groups: thrombocytopenia (< 140 x 10(9)/L) and normal platelet count (> 140 x 10(9)/L).
- Spleen-to-heart and spleen-to-liver ratios were calculated from 24-hour platelet scintigraphic images.
Main Results:
- No significant difference in spleen-to-heart ratios was observed between patients with and without thrombocytopenia (5.18 vs. 5.17, P = 0.465).
- Spleen-to-liver ratios also showed no significant difference between the groups (3.08 vs. 2.38, P = 0.870).
Conclusions:
- Thrombocytopenia in chronic hepatitis C patients may occur independently of hypersplenism.
- Platelet scintigraphy did not reveal hypersplenism as the primary mechanism for thrombocytopenia in this cohort.
Background/Aims:
Chronic hepatitis C has been recognized to be associated with thrombocytopenia. The use of indium (In-111) oxine-labeled platelets has provided an important tool for classifying the mechanism of thrombocytopenia. In this study, we utilized In-111 oxine-labeled platelet scintigraphies to evaluate patients with chronic hepatitis C (with and without thrombocytopenia).
Methodology:
Eleven patients with chronic hepatitis C were included in this study. Six patients (3 male, 3 female) were diagnosed with thrombocytopenia (< 140 x 10(9)/L) (group A) and five patients (3 male, 2 female) had normal platelet counts (> 140 x 10(9)/L) (group B). Spleen to heart and spleen to liver ratios were calculated from 24-hour platelet scintigraphic images.
Results:
The spleen to heart ratios in group A and group B were 5.18 +/- 2.09 and 5.17 +/- 2.17, respectively (P = 0.465). The spleen to liver ratio of group A and B were 3.08 +/- 1.60 and 2.38 +/- 0.87, respectively (P = 0.870).
Conclusions:
Our study revealed that patients with hepatitis C infection may have thrombocytopenia independent of hypersplenism.