This report updates the combined experience of four centres involved in the long-term treatment of transfusional iron overload in 84 patients with the oral iron chelator deferiprone (L1) over 167 patient-years. The source of L1 was variable, including two university research laboratories and three pharmaceutical firms. Compliance was rated as excellent in 48%, intermediate in 36%, and poor in 16% of patients. On a mean L1 dose of 73-81 mg/kg/d, urinary iron excretion was stable, at around 0.5 mg/kg/d, with no indication of a diminishing response with time. Serum ferritin showed a very steady decrease with time from an initial mean +/- 1 SD of 4207 +/- 3118 to 1779 +/- 1154 micrograms/l after 48 months (P < 0.001). 17 patients abandoned L1 therapy. Major complications of L1 requiring permanent discontinuation of treatment included agranulocytosis (three), severe nausea (four), arthritis (two) and persistent liver dysfunction (one). The remaining patients abandoned treatment because of low compliance (three) and conditions unrelated to L1 toxicity (four). Lesser complications permitting continued L1 treatment included transient mild neutropenia (four), zinc deficiency (12), transient increase in liver enzymes (37), moderate nausea (three) and arthropathy (17). There was no treatment-related mortality. Although the complications associated with L1 treatment are significant and require close monitoring, they do not preclude effective long-term therapy in the vast majority of patients. Further well-controlled prospective studies of L1 are required in order to enable proper judgement of its suitability for general long-term clinical use.
Prevention programs are considered to be a top priority in Iran because beta-thalassemia (beta-thal) major (TM) is the most common autosomal disorder in Iran, and in the Mazandaran Province in particular. The main strategies comprise providing appropriate information for the public and professionals, screening and counseling of families at-risk and screening of general population prior to marriage. Providing laboratories for prenatal diagnosis was the most recent step in the program. We report the results of our prevention campaign for the period 1993-2006 in order to assess the effectiveness of all actions in controlling thalassemia major. In 1993, 500 TM patients were registered at the clinic of the Boo Ali Sina Hospital, Sari, Mazandaran, Iran. From 1993 to 1996, on average of 50 new cases were added to the cohort annually, whereas from 1995 to 2005 the number of new cases declined to 35 per year. Furthermore, the patients' average age increased. Overall, 51% of couples at-risk, who received genetic counseling, decided not to marry. All at-risk couples who are married were counseled for prevention of unplanned pregnancies. Currently, 64% are using safe contraceptive methods of family planning, and 14% are no longer at-risk for further pregnancies, the rest remained at-risk for unplanned pregnancies. In conclusion, at the relatively low cost of premarital screening and genetic counseling, we have offered at-risk couples the possibility of preventing the birth of at least 600 undesired TM patients. Thus, a great deal of suffering and an unbearable financial burden has been prevented to patients and their families.
Methanolic and ethyl acetate extracts ofCantharellus cibariusshow significant iron chelation activities bothin vitroandin vivo. The methanolic extract is more efficient in chelation of excessive iron from plasma and liver.
Beta-thalassemia major (TM) is the most prevalent genetic disease in Mazandaran Province. Currently, about 2,700 TM patients have been registered and are under treatment in the province. This study was undertaken to evaluate the survival of patients attending a dedicated clinic at the Boo Ali Sina Teaching Hospital, Sari, Iran, which was established in 1986. This survival analysis was conducted from July 2004 to September 2006. New deaths were updated in September 2006. A total of 1,010 medical records were reviewed. Place of residence, date of birth, first transfusion, initiation date of chelation, diagnosis of cardiac complications, diabetes and death were recorded. Compliance to treatment assessed by calculating the percentage of actual usage to prescribed iron chelator medicine and also by asking the attending nurse who was constantly present throughout the last 15 years. Validity of the opinion of the nurse was ascertained in a previous study. Kaplan-Meier statistics were used for analysis. The odds ratio (OR) and its 95% confidence interval (CI) for some risk factors of death were calculated. The survival rate of patients born before and after 1986 was also compared. Survival of both genders for birth cohort before and after 1986 was not statistically significant although the cohort of patients born after 1986 was better at 30 years old (68 vs. 80%). The survival of TM patients is improving but the prevalence of complications is high.
Fifteen iron-overloaded thalassaemia major (TM) patients and two homozygous sickle cell patients (SCD) were treated continuously for 7d each week with the novel 48 h continuous subcutaneous (s.c.) desferrioxamine (DFX) delivery device (code C1083, Baxter) and 10 TM patients received the 24 h continuous intravenous (i.v.) DFX delivery device (code C1071). The 27 patients had previously received conventional s.c. DFX for 8-10h on 5 or more days each week. The serum non-transferrin bound iron (NTBI) levels fell significantly in both groups within 12h of commencing the continuous infusion. In the s.c. group the mean level fell from 4.2 to 2.0 mumol/l (P = 0.001), whereas in the i.v. group the mean level fell from 3.6 to 0.1 mumol/l (P = 0.006) the initial levels being measured 12h after stopping conventional s.c. DFX. After 4 weeks there was a significant fall in serum ferritin in both groups (P = 0.009). The new DFX delivery device is effective at removing toxicfree iron from plasma and reducing body iron. Moreover, it is preferred by patients with much improved compliance compared to the conventional s.c. DFX pump.
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