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1.
Br J Cancer ; 112(1): 177-84, 2015 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-25314066

RESUMO

BACKGROUND: As more patients are treated by haematopoietic stem cell transplantation (HSCT), development of secondary malignancy (SM) becomes an increasingly common issue in long-term survivors. METHODS: We conducted a nationwide population-based study of the Taiwanese population to analyse patients who received HSCT between January 1997 and December 2010. Standardised incidence ratios (SIRs) were used to compare the risk of SM in HSCT patients and the general population. Multivariate analysis was performed to identify independent predictors of SM. RESULTS: Patients receiving HSCT had a significantly greater risk of developing SM (SIR 2.00; 95% confidence interval (CI) 1.45-2.69; P<0.001). Specifically, the incidence increased for cancers of the oral cavity (SIR 14.18) and oesophagus (SIR 14.75) after allogeneic HSCT. Multivariate analysis revealed an increased SIR for cancer in patients who received the immunosuppressant azathioprine. The risk of SM also increased with greater cumulative doses of azathioprine. CONCLUSIONS: This study demonstrates an increased incidence of SM in Taiwanese patients who received allogeneic HSCT, especially for cancers of the oral cavity and oesophagus. This finding is different from results in populations of Western countries. Physicians should be cautious about azathioprine use for graft-vs-host disease after HSCT.


Assuntos
Azatioprina/administração & dosagem , Doença Enxerto-Hospedeiro/tratamento farmacológico , Transplante de Células-Tronco Hematopoéticas/estatística & dados numéricos , Segunda Neoplasia Primária/epidemiologia , Adulto , Estudos de Coortes , Feminino , Doença Enxerto-Hospedeiro/etiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Sobreviventes , Taiwan/epidemiologia , Condicionamento Pré-Transplante/efeitos adversos , Adulto Jovem
2.
Haemophilia ; 20(6): 741-6, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24834860

RESUMO

Haemostasis is associated with the development and dissemination of cancer. Whether cancer incidence is increased in haemophiliacs remains uncertain; thus, we aimed to further examine this issue. By using data from the National Health Insurance Research Database in Taiwan, we obtained a cohort of 683 patients with haemophilia A, and compared the incidence rate ratio (IRR) of cancer in this cohort with an age- and sex-matched control of 6830 patients. The log-rank test was used to compare Kaplan-Meier curve of the cumulative cancer incidence between two cohorts. Cox regressions were used to identify independent risk factors of cancer in the study patients. The cancer incidence of patients with haemophilia A was significantly higher compared to the control group (IRR 1.95, 95% CI 1.18-3.09, P = 0.008) during the 14-year follow-up period. The non-lymphoma and non-liver cancer incidence in the haemophilia A cohort remained higher than that of the matched control (P = 0.050 by the log-rank test). The multivariate Cox proportional hazards analysis indicated that age (per year, HR 1.09, 95% CI 1.06-1.12, P < 0.001) was the only significant risk factor for cancer development in haemophilia patients. Patients with haemophilia A had higher cancer incidence than the age- and sex-matched patients, especially for the elderly. With increasing life expectancy for haemophiliacs, physicians should be aware of their cancer development.


Assuntos
Hemofilia A/complicações , Neoplasias/epidemiologia , Neoplasias/etiologia , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Comorbidade , Feminino , Seguimentos , Humanos , Incidência , Estimativa de Kaplan-Meier , Masculino , Vigilância da População , Modelos de Riscos Proporcionais , Sistema de Registros , Risco , Taiwan/epidemiologia , Adulto Jovem
3.
Intern Med J ; 44(4): 374-83, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24533861

RESUMO

BACKGROUND: The diagnosis of Adult T-cell leukaemia/lymphoma (ATL) in non-endemic regions is challenging. AIM: This study analyses the clinicopathologic features and diagnostic processes of ATL patients in Taiwan. METHODS: ATL patients diagnosed and treated at Taipei Veterans General Hospital from 1998 through 2010 were retrospectively identified. The diagnosis of ATL was confirmed by in situ detection of human T-cell leukaemia virus type 1 (HTLV-1) when necessary. Patients' data were reviewed and analysed. RESULTS: Fourteen ATL patients were identified, among whom six (42.9%) had an antecedent diagnosis of other malignant lymphomas before the ATL diagnosis, including two diagnosed with Hodgkin disease (HD), one with peripheral T-cell lymphoma, two with chronic lymphocytic leukaemia and one with angioimmunoblastic T-cell lymphoma. Of the 14 patients, eight (57%) were subclassified as the acute type, three (21.4%) as the lymphoma type, and three (21.4%) as the chronic type ATL. Five of six (83.3%) patients with initial non-ATL misdiagnosis were diagnosed with non-acute type ATL. In particular, a patient with an antecedent diagnosis of HD presented with typical Reed-Sternberg (RS)-like cells harbouring Epstein-Barr virus genomes in affected lymph nodes. The patient progressed to acute type ATL 3 years after the initial diagnosis, and HTLV-1 genomes were identified in the previous RS-like cells. CONCLUSION: In non-endemic areas, such as Taiwan, ATL, particularly the non-acute type, may mimic other lymphomas and easily be misdiagnosed. HTLV-1 serology should be routinely screened in all malignant lymphoma patients. In situ detection of HTLV-1 is helpful in cases with diagnostic dilemmas.


Assuntos
DNA Viral/análise , Vírus Linfotrópico T Tipo 1 Humano/genética , Leucemia-Linfoma de Células T do Adulto/diagnóstico , Adulto , Terapia Combinada , Diagnóstico Diferencial , Doenças Endêmicas , Feminino , Seguimentos , Humanos , Hibridização In Situ , Incidência , Leucemia-Linfoma de Células T do Adulto/epidemiologia , Leucemia-Linfoma de Células T do Adulto/terapia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Taiwan/epidemiologia
4.
Blood Cancer J ; 2: e93, 2012 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-23064741

RESUMO

To select an appropriate prognostic model in the treatment of mature T- and natural killer (NK) -cell lymphoma (peripheral T-cell lymphoma (PTCL) and NK-/T-cell lymphoma (NKTCL)) is crucial. This study investigated the usefulness of Ann Arbor staging classification International prognostic index (IPI), prognostic index for T-cell lymphoma (PIT) and International peripheral T-cell lymphoma Project score (IPTCLP). Between 2000 and 2009, 176 patients (122 males) with PTCL and NKTCL were diagnosed and treated from a single institute in Taiwan. The correlation between complete response (CR) rate, 3-year overall survival (OS), early mortality rate and four prognostic models was analyzed. Thirty-one patients received hematopoietic stem cell transplantation (HSCT) and were analyzed separately. Three-year OS rate was 34.7%, and anaplastic large-cell lymphoma harbored better outcome than others. IPI score had the lowest Akaike information criterion value (1081.197) and was the best score in predicting OS and early mortality (P=0.009). Ann Arbor stage classification can predict CR rate more precisely (P=0.006). OS was significantly better in patients who received HSCT, even in patients with unfavorable features compared with chemotherapy alone. All prognostic models were useful to evaluate the outcome of patients with PTCL and NKTCL but IPI score did best in predicting OS in PTCL and PIT score in NKTCL. This study also supported the role of HSCT in patients with high-risk or refractory PTCL or NKTCL.

5.
J Hosp Infect ; 82(4): 281-5, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23084483

RESUMO

This study investigated the impact of management of a totally implantable central venous access port device, Port-A-Cath (Smith Medical, St. Paul, MN, USA), on the outcome of 98 cancer patients with candidaemia. Port-A-Cath retention was found to be significantly associated with poorer outcome, independent of other significant adverse factors [breakthrough candidaemia, Acute Physiology and Chronic Health Evaluation (APACHE) II score ≥ 21, and worse Eastern Cooperative Oncology Group (ECOG) performance score (3-4)]. However, retention of Port-A-Cath devices could be considered in patients who do not have definite catheter-related candidaemia, are not using total parenteral nutrition, do not have poor ECOG performance scores or APACHE II scores, and do not have septic shock.


Assuntos
Candidemia/terapia , Infecções Relacionadas a Cateter/epidemiologia , Controle de Infecções/métodos , Neoplasias/complicações , Dispositivos de Acesso Vascular/microbiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Estados Unidos
6.
Bone Marrow Transplant ; 46(9): 1231-9, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21113186

RESUMO

This study aimed to determine the impact of blood stream infections (BSIs) on outcome of allogeneic hematopoietic SCT (HSCT), and to examine the influence of old (non-levofloxacin-containing) and new (levofloxacin-based) prophylactic antibiotic protocols on the pattern of BSIs. We retrospectively enrolled 246 allogeneic HSCT recipients between January 1999 and June 2006, dividing patients into BSI (within 6 months post-HSCT, n=61) and non-BSI groups (n=185). We found that Gram-negative bacteria (GNB) predominated BSI pathogens (54%). Multivariate analyses showed that patients with a BSI, compared with those without, had a significantly greater 6-month mortality (hazard ratio, 1.75; 95% confidence interval, 1.09-2.82; P=0.021) and a significantly increased length of hospital (LOH) stay (70.8 vs 55.2 days, P=0.014). Moreover, recipients of old and new protocols did not have a significantly different 6-month mortality and time-to-occurrence of BSIs. However, there were significantly more resistant GNB to third-generation cephalosporins and carbapenem in recipients of levofloxacin-based prophylaxis. Our data suggest that BSIs occur substantially and impact negatively on the outcome and LOH stay after allogeneic HSCT despite antibiotic prophylaxis. Levofloxacin-based prophylaxis, albeit providing similar efficacy to non-levofloxacin-containing regimens, may be associated with increased antimicrobial resistance.


Assuntos
Antibacterianos/uso terapêutico , Bacteriemia/prevenção & controle , Transplante de Células-Tronco Hematopoéticas/métodos , Administração Oral , Adulto , Antibioticoprofilaxia , Estudos de Coortes , Feminino , Humanos , Estimativa de Kaplan-Meier , Levofloxacino , Masculino , Ofloxacino/uso terapêutico , Estudos Retrospectivos , Transplante Homólogo , Resultado do Tratamento , Adulto Jovem
7.
Bone Marrow Transplant ; 46(4): 567-72, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20622906

RESUMO

Hematopoietic SCT (HSCT) is a well-recognized therapeutic procedure to prolong life and cure patients with life-threatening hematological malignancies; however, the risk of developing secondary carcinoma may increase in long-term survivors. The objective of this study was to determine the incidence and risk factors for secondary squamous carcinoma after HSCT. Between 1984 and 2004, 170 allogeneic HSCT recipients aged >15 years, who had survived for >5 years were enrolled. Demographic data and the characteristics of secondary carcinoma were collected and analyzed for the determination of the incidence and risk of developing secondary carcinoma. Eight patients developed secondary carcinoma, including five oral squamous cell carcinomas, one esophageal, one gastric and one ovarian carcinoma, but no cutaneous carcinomas were detected at a median follow-up of 14.1 years (range, 5.1-23.3 years) after HSCT. The accrual 10-year cumulative incidence of secondary carcinoma was 2.89%. In univariate and multivariate analyses, chronic GVHD and age >40 years at the time of HSCT were both significant risk factors independently associated with the development of secondary carcinoma. Thus, the occurrence of secondary carcinoma is one of the late complications in patients undergoing HSCT. Oral squamous cell carcinoma was more common in our patients after HSCT, indicating the need for lifelong surveillance of the oral cavity. Moreover, because of the relatively long latency in developing secondary carcinoma, extended follow-up is required for a thorough understanding of the incidence and characteristics of secondary carcinoma after HSCT.


Assuntos
Carcinoma de Células Escamosas/epidemiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Segunda Neoplasia Primária/epidemiologia , Infecções por Papillomavirus , Adolescente , Adulto , Fatores Etários , Carcinoma de Células Escamosas/etiologia , Feminino , Seguimentos , Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas/estatística & dados numéricos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Segunda Neoplasia Primária/etiologia , Estudos Retrospectivos , Fatores de Risco , Taiwan , Transplante Homólogo , Adulto Jovem
8.
Bone Marrow Transplant ; 45(12): 1682-91, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20190847

RESUMO

The hematopoietic SCT (HSCT) activity in nine Asian countries/regions was surveyed to overview the current situation. Data of 58 113 HSCTs (allogeneic: 63% vs autologous: 37%) performed between 1986 and 2006 by 432 transplant teams were collected. The number of HSCTs has been increasing in the past two decades in most countries/regions. The increase in allogeneic HSCTs is greater than in autologous HSCTs. The proportion of unrelated donors among allogeneic HSCTs in 2006 varied widely from <1% (Iran and Vietnam) to 62% (Japan). The use of each stem cell source, that is, BM, PBSC, cord blood and others (including co-infusion of BM and PBSC), also varied widely (36, 58, 0.1 and 6% in HSCT from related donors, respectively, and 53, 11, 35 and 1% in HSCT from unrelated donors, respectively). HSCTs have been continuously increasing for all indications except for chronic myelogenous leukemia and solid tumors. Hemoglobinopathy is a common indication among non-malignant diseases in many Asian countries/regions except for China, Japan and Korea. This survey clearly shows the recent progress of HSCTs in Asia and also some differences in donor and stem cell selection and disease application among countries/regions.


Assuntos
Transplante de Células-Tronco Hematopoéticas/estatística & dados numéricos , Ásia , Humanos
9.
Eur J Cancer Care (Engl) ; 19(2): 267-72, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19709171

RESUMO

The terminal cancer patients increase needs for hospice care day by day. A new hospice consulting system has been developed in Taiwan to provide options for terminal cancer patients in choosing a suitable post-acute hospice care while a combined hospice care system is also given by the consulting team in the acute wards. Hereinafter is our report. From March 2005 to January 2006, 313 terminal cancer patients were analysed. These patients had signed consent forms for palliative treatment and had received consultations from the new hospice consulting system. Multivariate analysis showed that the home care patients had better performance status (P = 0.012), less shortness of breath (P = 0.006), less limbs swelling (P = 0.043), less flatulency (P = 0.000) and less constipation (P = 0.018). Among the 162 patients with regular follow-up, the symptoms/signs were significantly improved after intervention of consulting team in pain (P = 0.000), shortness of breath (P = 0.000), difficulty in sleeping (P = 0.002), nausea (P = 0.004), constipation (P = 0.008), changes in skin (P = 0.024) and adoption (P = 0.000). This new system had significant improvement in the terminal cancer patients' symptoms/signs control in acute wards and could contribute to the care quality of home care patients.


Assuntos
Atenção à Saúde/métodos , Neoplasias/terapia , Cuidados Paliativos/métodos , Encaminhamento e Consulta , Adulto , Idoso , Idoso de 80 Anos ou mais , Tomada de Decisões , Feminino , Serviços de Assistência Domiciliar , Cuidados Paliativos na Terminalidade da Vida/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/psicologia , Cuidados Paliativos/psicologia , Satisfação do Paciente , Taiwan , Doente Terminal/psicologia
10.
Hong Kong Med J ; 15(3 Suppl 3): 13-6, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19494390

RESUMO

In Taiwan, haematopoietic stem cell transplantation (HSCT) has been used to treat patients with haematological diseases since 1983. Thereafter till 2007, there were 2537 patients who had undergone HSCT in more than 15 hospitals. Their diseases included acute myeloid leukaemia in 27.8% of cases, non-Hodgkin's lymphoma 23.3%, acute lymphoblastic leukaemia 12.8%, chronic myeloid leukaemia 11.9%, severe aplastic anaemia 8.7%, and multiple myeloma 4.1%. Most of the cases received myeloablative conditioning regimens. More than 15% of cases received non-myeloablative regimens, and the mean age of these cases was at least 10 years older than those who received myeloablative regimens. The types of graft included peripheral blood (60.4%) and bone marrow (32.0%). A total of 35% of patients received autologous grafts. Of 1557 allogeneic HSCT patients, 338 (21.7%) received grafts from unrelated donors. Cord blood transplantation has been successfully performed in paediatric patients with thalassaemia major and with a large body size, and adult patients. The incidence of acute graft-versus-host disease was relatively low in Taiwan. On the contrary, a relatively higher proportion of hepatitis B carrier in the recipients had led to a higher incidence of reactivation hepatitis, which was markedly decreased following lamivudine prophylaxis. In conclusion, HSCT has become a routine therapy for major medical centres in Taiwan. Our unique experiences in the past decades also contributed to the progress of HSCT. With the establishment of professional association and patient supportive groups, we hope we can fully improve our daily practice and clinical as well as basic research in HSCT.


Assuntos
Transplante de Células-Tronco Hematopoéticas/tendências , Adulto , Criança , Transplante de Células-Tronco de Sangue do Cordão Umbilical/tendências , Doença Enxerto-Hospedeiro/epidemiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/etnologia , Humanos , Prevalência , Sistema de Registros/estatística & dados numéricos , Taiwan/epidemiologia , Transplante Homólogo/tendências
11.
Hong Kong Med J ; 15(3 Suppl 3): 42-4, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19494397

RESUMO

Impact of hepatitis B virus (HBV) infection on haematopoietic stem cell transplantation (HSCT) was reported earlier since late 1980s. It was shown that changing patterns of HBV serological markers was accompanied by variable severity of hepatitis after transplantation. Recipient's hepatitis B virus surface antigen (HBsAg) positivity was not considered an absolute contra-indication to allogeneic HSCT. However, HBsAg positivity was an important risk factor of reactivation hepatitis after transplantation, especially in allogeneic setting. Managing HBV reactivation in HSCT recipients was not successful till the availability of lamivudine since mid-1990s. For HBsAg-positive recipients, prophylactic lamivudine has been shown to significantly reduce reactivation hepatitis. As for HBsAg-negative recipients, there have been a small number of patients who develop so-called reverse seroconversion, that is, appearance of HBsAg after transplantation. In addition to chronic graft-versus-host disease, the risk was also high in allogeneic HSCT recipients who received fludarabine-antithymocyte globulin-containing conditioning regimens. The HBV is harboured earlier in the recipients before transplantation rather than transmitted via transfusion. At present, the optimal duration of lamivudine prophylaxis is not well-defined, and there are several fatal cases associated with early withdrawal and resistant HBV mutants. In conclusion, in HBV-endemic areas, the war between HBV and HSCT recipients continued even though several anti-HBV agents and molecular detection techniques are available. It deserves additional effort to overcome and also presents a chance to elucidate underlying mechanisms of HBV immunity, which are not easily studied in non-HSCT setting.


Assuntos
Doenças Endêmicas/prevenção & controle , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Hepatite B Crônica/tratamento farmacológico , Lamivudina/uso terapêutico , Inibidores da Transcriptase Reversa/uso terapêutico , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/prevenção & controle , Humanos , Taiwan/epidemiologia , Ativação Viral
12.
J Infect ; 58(2): 154-60, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19162330

RESUMO

OBJECTIVE: To explore the impact of retention of non-tunneled central venous catheters (CVCs) on survival in candidemic cancer patients, where CVCs are commonly used and essential. A second object was to determine whether early CVC removal would benefit a subset of cancer patients. METHODS: We retrospectively evaluated 92 cancer patients who had a single, non-tunneled CVC in place. Patients were grouped according to CVC retention or removal; the later group was subdivided into early (CVC removed

Assuntos
Candidíase/terapia , Cateterismo Venoso Central/efeitos adversos , Fungemia/terapia , Neoplasias/complicações , Idoso , Idoso de 80 Anos ou mais , Candida/isolamento & purificação , Candidíase/mortalidade , Feminino , Fungemia/mortalidade , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
13.
Bone Marrow Transplant ; 42 Suppl 1: S133-S136, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18724286

RESUMO

In Taiwan, hematopoietic SCT (HSCT) has been used to treat patients with hematological diseases since 1983. Since then, more than 2200 patients have undergone HSCT in 15 large hospitals. The disease entities included acute leukemia in 37% of cases, non-Hodgkin's lymphoma in 26%, CML in 10%, multiple myeloma in 7% and severe aplastic anemia in 6%. The conditioning regimens used were mainly myeloablative (84% of cases). Non-myeloablative regimens were fludarabine-based. The average age of allogeneic recipients was at least 10 years older than those in the era before their application. The grafts of all patients were derived from peripheral blood in 85% of cases, BM in 13% and cord blood (CB) in 2%. Forty percent of HSCT patients received autologous grafts, whereas more than 25% of allogeneic HSCT patients received grafts from unrelated donors, and overall, there were more than 200 Taiwan HSCT recipients. Currently, CB has been used successfully in pediatric patients with thalassemia major and also in adult patients with hematological malignancy. After transplantation, there was a relatively lower prevalence of acute GVHD. However, a relatively higher proportion of hepatitis B carriers in the recipients had led to a higher incidence of viral reactivation and clinical hepatitis, which was dramatically decreased following lamivudine prophylaxis. In conclusion, HSCT has been successfully adapted to routine clinical care in Taiwan. Several important findings contributing to the progress of HSCT in the past two decades have also been noticed on this island.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Doença Enxerto-Hospedeiro/epidemiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/economia , Humanos , Taiwan , Doadores de Tecidos
14.
Eur J Haematol ; 74(2): 152-7, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15654907

RESUMO

Pulmonary function tests were performed in 20 patients with chronic myeloid leukemia before and after human leukocyte antigen-matched allogeneic sibling hematopoietic stem cell transplantation (HSCT) to identify any conditioning treatment effects on post-transplant function from January 1995 to December 2002. Of 20 patients, eight received non-myeloablative conditioning treatment and 12 received conventional myeloablative conditioning treatment. Pulmonary function tests including forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), and diffusion capacity for carbon monoxide (DLCO) were performed pretransplant, 6 and 12 months post-transplant. Possible pre-HSCT and post-HSCT risk factors were evaluated for association with pulmonary function. The results showed that myeloablative conditioning treatment had greater negative impact on FEV1, FVC, and DLCO than non-myeloablative conditioning therapy. We conclude that non-myeloablative allogeneic HSCT may apply a better transplant choice in patients who need special concern with post-transplant pulmonary function changes.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Leucemia Mielogênica Crônica BCR-ABL Positiva/terapia , Pulmão/fisiopatologia , Testes de Função Respiratória , Condicionamento Pré-Transplante , Adulto , Volume Expiratório Forçado , Humanos , Leucemia Mielogênica Crônica BCR-ABL Positiva/fisiopatologia , Pessoa de Meia-Idade , Transplante Homólogo
15.
Ann Oncol ; 15(4): 618-25, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15033670

RESUMO

BACKGROUND: To clarify the role of intention to treat for patients with localized nasal natural killer (NK)/T-cell lymphoma, and to determine the prognostic factors for these patients. PATIENTS AND METHODS: We conducted a retrospective review of 46 patients with localized nasal NK/T-cell lymphomas treated at a single institute between January 1988 and July 2002. RESULTS: The type of intended treatment was a significant factor for overall survival (OS) (5-year OS: RT versus CT = 83.3% versus 28.6%, P = 0.0269) or failure-free survival (FFS) (5-year FFS: RT versus CT = 83.3% versus 27.1%, P = 0.0247). In the intended chemotherapy group, salvage with radiotherapy was superior to chemotherapy alone for OS (5-year OS: 42.2% versus 20.0%, P = 0.0252) or FFS (5-year FFS: 41.0% versus 20.0%, P = 0.0352). On multivariate analysis, both N stage and serum lactate dehydrogenase level were independent factors for OS and FFS. No radiotherapy was an independent adverse factor for OS; advanced T stage and more than one extranodal involvement were independent adverse factors for FFS. CONCLUSIONS: Patients with localized nasal NK/T-cell lymphomas were better managed with radiotherapy as front-line therapy. The advantage of radiotherapy persisted even as palliative therapy after chemotherapy.


Assuntos
Células Matadoras Naturais/patologia , Linfoma de Células T/terapia , Neoplasias Nasais/terapia , Adulto , Idoso , Terapia Combinada , Feminino , Humanos , Linfoma de Células T/tratamento farmacológico , Linfoma de Células T/radioterapia , Masculino , Pessoa de Meia-Idade , Neoplasias Nasais/tratamento farmacológico , Neoplasias Nasais/radioterapia , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Taiwan , Resultado do Tratamento
16.
Ann Hematol ; 83(1): 38-43, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14530878

RESUMO

Hematopoietic stem cell transplantation (HSCT) is an accepted treatment strategy for patients with severe aplastic anemia (SAA). We report our experience in a general hospital in Taiwan. From March 1985 to July 2001, 79 consecutive SAA patients, 46 male and 33 female, with a median age of 22 (4-43) years, received 80 courses of transplantation. Cyclophosphamide and total body radiation were used for the conditioning regimen, and cyclosporine-A and methotrexate for graft-versus-host disease (GVHD) prevention. Patients were followed for a median of 39 months (from 8 days to 194 months). Myeloid and platelet engraftment occurred in a median of 15 (8-27) days and 18 (8-77) days, respectively. Three patients had primary and three patients secondary graft failure. Five patients (6.8%) had grade II-IV acute GVHD in 73 evaluable patients. Chronic GVHD occurred in 23 (34.8%) patients, with extensive stage in six. Only two patients had CMV disease. The projected 3- and 5-year overall survival rates estimated by the Kaplan-Meier method were 76.08 and 74.13%, respectively. Age at transplant, non-sibling donor, mononuclear cell dose, grade II-IV acute GVHD, interval from diagnosis to transplant, and red blood cell and platelet transfusion before transplant were poor prognostic factors for overall survival by univariate analysis. Grade II-IV acute GVHD was the only prognostic factor affecting overall survival after multivariate Cox regression analysis (P=0.040). In conclusion, SAA patients receiving HSCT have good long-term survival. The low incidence of acute GVHD in our patients may be related to ethnicity.


Assuntos
Anemia Aplástica/terapia , Transplante de Células-Tronco Hematopoéticas , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Seguimentos , Sobrevivência de Enxerto , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/métodos , Histocompatibilidade , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Taiwan/epidemiologia , Resultado do Tratamento
17.
Br J Radiol ; 76(905): 337-8, 2003 May.
Artigo em Inglês | MEDLINE | ID: mdl-12763950

RESUMO

We report a 17-year-old boy with chondroblastic osteosarcoma initially found in left proximal tibia. He received surgical resection and chemotherapy. However, a lung metastasis was found 4 years later. Despite intensive chemotherapy, the metastatic osteosarcoma of lung continued to invade the ribs and later into retroperitoneum and liver. The metastatic pattern of chondroblastic osteosarcoma of tibia directly to the chest and then into the abdomen is unusual.


Assuntos
Neoplasias Ósseas/patologia , Neoplasias Pulmonares/secundário , Osteossarcoma/secundário , Tíbia , Adolescente , Humanos , Neoplasias Hepáticas/patologia , Neoplasias Pulmonares/patologia , Masculino , Invasividade Neoplásica , Osteossarcoma/patologia , Neoplasias Retroperitoneais/patologia , Costelas , Tomografia Computadorizada por Raios X
18.
Ann Hematol ; 81(12): 723-6, 2002 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12483369

RESUMO

Autoimmune hemolytic anemia (AIHA) rarely occurs in myelodysplastic syndrome (MDS). A 36-year-old Asian female was diagnosed with MDS (refractory cytopenia with multilineage dysplasia, RCMD) and complicated by AIHA 7 months later. Secondary myelofibrosis developed at the same time. Steroid therapy was ineffective and cyclosporin A (CsA) was discontinued due to its neurotoxicity with the development of leukoencephalopathy. However, the patient achieved a good hematological response after the use of mycophenolate mofetil (MMF, CellCept) with a dose of 1 g/day and prednisolone (15 mg/day). Prednisolone was tapered off over the next 3 weeks. The patient did not require any blood support 4 weeks after the use of MMF and has been hematologically stable for 4 months. To our knowledge, this is the first report of using MMF in treating MDS complicated by AIHA. MMF might be considered as a salvage therapy for patients with refractory anemia complicated by AIHA.


Assuntos
Anemia Hemolítica Autoimune/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Ácido Micofenólico/administração & dosagem , Síndromes Mielodisplásicas/complicações , Adulto , Anemia Hemolítica Autoimune/etiologia , Anemia Refratária/tratamento farmacológico , Anemia Refratária/etiologia , Feminino , Humanos , Ácido Micofenólico/análogos & derivados , Síndromes Mielodisplásicas/tratamento farmacológico , Prednisolona/administração & dosagem , Mielofibrose Primária/etiologia , Indução de Remissão/métodos , Terapia de Salvação
19.
Bone Marrow Transplant ; 29(1): 67-70, 2002 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11840147

RESUMO

We report a nonmyeloablative allogeneic bone marrow transplant (allo-BMT) from an HLA-matched unrelated donor in a case of acute myeloid leukemia (AML), M2 with t(8;21)(q22;q22) and the presence of orbital granulocytic sarcoma (GS), who had residual tumor after conventional chemotherapy. The course of BMT was well tolerated, with no major procedure-related toxicity. The residual orbital GS regressed completely 4 months after BMT. She is currently 19 months post BMT, disease-free. To our knowledge, this is the first reported pediatric patient with AML, GS and t(8;21)(q22;q22) who received a nonmyeloablative allo-BMT.


Assuntos
Transplante de Medula Óssea/métodos , Cromossomos Humanos Par 21 , Cromossomos Humanos Par 8 , Imunossupressores/administração & dosagem , Leucemia Mieloide Aguda/terapia , Neoplasias Orbitárias/terapia , Sarcoma Mieloide/terapia , Translocação Genética , Doença Aguda , Pré-Escolar , Intervalo Livre de Doença , Feminino , Humanos , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/patologia , Sarcoma Mieloide/diagnóstico , Sarcoma Mieloide/genética , Condicionamento Pré-Transplante/métodos , Transplante Homólogo/métodos
20.
Cancer ; 92(11): 2769-77, 2001 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-11753950

RESUMO

BACKGROUND: Esophageal carcinoma is a major cause of cancer-related deaths among males in Taiwan. However, to date, the genetic alterations that accompany this lethal disease are not understood. METHODS: Chromosomal aberrations of 46 samples of esophageal squamous cell carcinoma (EC-SCC) were analyzed by comparative genomic hybridization (CGH), and their correlations with pathologic staging and prognosis were analyzed statistically. RESULTS: In total, 321 gains and 252 losses were found in 46 tumor samples; thus, the average gains and losses per patient were 6.98 and 5.47, respectively. Frequent gain abnormalities were found on chromosome arms 1q, 2q, 3q, 5p, 7p, 7q, 8q, 11q, 12p, 12q, 14q, 17q, 20q, and Xq. Frequent deletions were found on chromosome arms 1p, 3p, 4p, 5q, 8p, 9p, 9q, 11q, 13q, 16p, 17p, 18q, 19p, and 19q. It was found that deletions of 4p and 13q12-q14 and gain of 5p were significantly correlated with pathologic staging. Losses of 8p22-pter and 9p also were found more frequently in patients with advanced disease. Gain of 8q24-qter was seen more frequently in patients with Grade 3 tumors. A univariate analysis found that pathologic staging; gains of 5p and 7q; and deletions of 4p, 9p, and 11q were significant prognostic factors. However, pathologic staging became the only significant factor in a multivariate analysis. CONCLUSIONS: CGH not only revealed novel chromosomal aberrations in EC-SCC, but also found possible genotypic changes associated with disease progression. Despite all of the possible associations of chromosomal aberrations with disease progression, the most important prognostic factor for patients with EC-SCC was pathologic staging.


Assuntos
Carcinoma de Células Escamosas/genética , Aberrações Cromossômicas , Neoplasias Esofágicas/genética , Adulto , Idoso , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/mortalidade , Sondas de DNA , Progressão da Doença , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estatística como Assunto , Análise de Sobrevida
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