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1.
Br J Haematol ; 176(1): 124-130, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27748513

RESUMO

In the last few decades, the life expectancy of regularly transfused ß-thalassaemia major (TM) patients has dramatically improved following the introduction of safe transfusion practices, iron chelation therapy, aggressive treatment of infections and improved management of cardiac complications. How such changes, especially those attributed to the introduction of iron chelation therapy, improved the survival of TM patients to approach those with ß-thalassaemia intermedia (TI) remains unknown. Three hundred and seventy-nine patients with TM (n = 284, dead 40) and TI (n = 95, dead 13) were followed retrospectively since birth until 30 June 2015 or death. Kaplan-Meir curves showed statistically significant differences in TM and TI survival (P < 0·0001) before the introduction of iron chelation in 1965, which were no longer apparent after that date (P = 0·086), reducing the Hazard Ratio of death in TM compared to TI from 6·8 [95% confidence interval (CI) 2·6-17·5] before 1965 to 2·8 (95% CI 0·8-9·2). These findings suggest that, in the era of iron chelation therapy and improved survival for TM, the major-intermedia dichotomy needs to be revisited alongside future directions in general management and prevention for both conditions.


Assuntos
Expectativa de Vida , Talassemia beta/classificação , Talassemia beta/mortalidade , Adulto , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem , Talassemia beta/epidemiologia , Talassemia beta/terapia
2.
J Clin Apher ; 31(5): 443-7, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26411360

RESUMO

Dysmetabolic iron overload syndrome is a rare event causing hepatic impairment with serious long-term side effects. Here, we describe a case of metabolic syndrome-related hepatic iron overload that showed a rapid, effective, and safe response to erythrocytapheresis. J. Clin. Apheresis 31:443-447, 2016. © 2015 Wiley Periodicals, Inc.


Assuntos
Citaferese , Transfusão de Eritrócitos/normas , Sobrecarga de Ferro/terapia , Hepatopatias/metabolismo , Humanos , Sobrecarga de Ferro/complicações , Hepatopatias/etiologia , Síndrome Metabólica , Segurança do Paciente
3.
Am J Hematol ; 90(7): 634-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25809173

RESUMO

In patients with thalassemia intermedia (TI), such as beta-TI, alpha-thalassemia (mainly HbH disease and mild/moderate forms of HbE/beta-thalassemia), iron overload is an important challenge in terms of diagnosis, monitoring, and treatment. Moreover, to date, the only possible chelators available are deferoxamine, deferasirox, and deferiprone. Here, we report the first 5-year long-term randomized clinical trial comparing the effectiveness of deferiprone versus deferoxamine in patients with TI. Body iron burden, which was determined by measuring serum ferritin levels in the same patient over 5 years and analyzed according to the generalized linear mixed model (GLMM), showed a linear decrease over time in the mean serum ferritin levels in both treatment groups (P-value = 0.035). The overall period of observation was 235.2 person-years for the deferiprone patients compared with 214.3 person-years for the deferoxamine patients. The results of the log-rank test suggested that the deferiprone treatment did not affect survival compared with the deferoxamine treatment (P-value = 0.360). The major adverse events observed included gastrointestinal symptoms and joint pain or arthralgia. Neutropenia and agranulocytosis were also detected, suggesting needing of strict hematological control. In conclusion, long-term iron chelation therapy with deferiprone is associated with an efficacy and safety similar to that of deferoxamine, suggesting that this drug is an alternative option in cases in which deferoxamine and deferasirox are contraindicated.


Assuntos
Desferroxamina/administração & dosagem , Quelantes de Ferro/administração & dosagem , Sobrecarga de Ferro/terapia , Piridonas/administração & dosagem , Talassemia beta/terapia , Adulto , Agranulocitose/induzido quimicamente , Agranulocitose/fisiopatologia , Artralgia/induzido quimicamente , Artralgia/fisiopatologia , Terapia por Quelação/métodos , Deferiprona , Desferroxamina/efeitos adversos , Feminino , Ferritinas/metabolismo , Humanos , Quelantes de Ferro/efeitos adversos , Sobrecarga de Ferro/etiologia , Sobrecarga de Ferro/metabolismo , Sobrecarga de Ferro/mortalidade , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Neutropenia/induzido quimicamente , Neutropenia/fisiopatologia , Piridonas/efeitos adversos , Análise de Sobrevida , Reação Transfusional , Talassemia beta/metabolismo , Talassemia beta/mortalidade , Talassemia beta/patologia
4.
Br J Haematol ; 167(1): 121-6, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24992281

RESUMO

The risk of developing hepatocellular carcinoma (HCC) in patients with thalassaemia is increased by transfusion-transmitted infections and haemosiderosis. All Italian Thalassaemia Centres use an ad hoc form to report all diagnoses of HCC to the Italian Registry. Since our last report, in 2002, up to December 2012, 62 new cases were identified, 52% of whom were affected by thalassaemia major (TM) and 45% by thalassaemia intermedia (TI). Two had sickle-thalassaemia (ST). The incidence of the tumour is increasing, possibly because of the longer survival of patients and consequent longer exposure to the noxious effects of the hepatotropic viruses and iron. Three patients were hepatitis B surface antigen-positive, 36 patients showed evidence of past infection with hepatitis B virus (HBV). Fifty-four patients had antibodies against hepatitis C virus (HCV), 43 of whom were HCV RNA positive. Only 4 had no evidence of exposure either to HCV or HBV. The mean liver iron concentration was 8 mg/g dry weight. Therapy included chemoembolization, thermoablation with radiofrequency and surgical excision. Three patients underwent liver transplant, 21 received palliative therapy. As of December 2012, 41 patients had died. The average survival time from HCC detection to death was 11·5 months (1·4-107·2 months). Ultrasonography is recommended every 6 months to enable early diagnosis of HCC, which is crucial to decrease mortality.


Assuntos
Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/etiologia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/etiologia , Talassemia/complicações , Adulto , Idoso , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/terapia , Comorbidade , Feminino , Ferritinas/sangue , Humanos , Ferro/metabolismo , Itália , Estimativa de Kaplan-Meier , Fígado/metabolismo , Fígado/patologia , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Prevalência , Sistema de Registros , Talassemia/sangue , Resultado do Tratamento
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