RESUMEN
A total of 78,428 blood units collected by the Blood Donor Unit, Hamad Medical Corporation, Doha, from the multinational donors of Qatar [28,622 Qatari nationals donors and 49, 806 Non-Qatari donors] in the period January 1994 to Dececember 2001 were screened for hepatitis markers. About 10, 382 units [13.2%] were discarded because of positivity for one or more hepatitis markers; 769 units [0.9%] were positive for hepatitis-B surface antigen [HBsAg], 8516 units [10.9%] were positive for hepatitis- B core antibodies [HBcAb] and 1097 units [1.39%] were positive for hepatitis C [HCV] antibodies. There was no significant difference between the rate of positivity for HBcAb and HBsAg in indigenous Qataris and Non-Qataris despite a slightly higher rate of positivity for HCV antibodies in the Non-Qatari group. An outstanding finding was the significantly high rate of positivity for HCV antibodies in Egyptian donations [11.2%], which accounted for 31.2% of all discards for the Non-Qatari group. As the Blood Donor Unit at HMC is the only blood collection center in Qatar it is assumed that the results could be representative of the country as a whole
Asunto(s)
Humanos , Donantes de Sangre , Recolección de Datos , Tamizaje Masivo , Anticuerpos contra la Hepatitis B , Antígenos de Superficie de la Hepatitis B , Anticuerpos contra la Hepatitis CRESUMEN
Three adults with sickle cell disease [SCD] presented in the span of less than two years with pancytopenia, signs of Disseminated Intravascular Coagulation [DIC] and no localizing pain to suggest vaso-occlusive crisis [VOC]. Bone marrow examination showed almost complete necrosis of the whole series of marrow cells, thus explaining the pancytopenia. Some necrotic leukocytes were noted also in the peripheral blood. The condition was self-limiting with marrow regeneration occurring in all three patients after transfusions of red cells and platelets
Asunto(s)
Humanos , Masculino , Enfermedades de la Médula Ósea , Necrosis , Pancitopenia , Coagulación Intravascular Diseminada , Examen de la Médula Ósea , Transfusión de Eritrocitos , Transfusión de PlaquetasAsunto(s)
Humanos , Masculino , Femenino , Talasemia/epidemiología , Hospitales , Talasemia alfa , Talasemia beta , Hemoglobina C , Hemoglobina E , Hemoglobina FalciformeRESUMEN
Endoscopic extraction of ureteric stones using the Zeiss loop was employed in 68 non-Bilharzial and 26 Bilharzial patients. The slow delivery approach was adopted for retrieval of the stones in all cases. Only middle and lower third ureteric stones were treated and a high rate of success was achieved in those patients with or without Bilharziasis of the urinary tract. No significant complications were encountered