RESUMO
Prior research on donor monoclonal gammopathy of undetermined significance (MGUS) has been inadequate regarding the risk for lymphoproliferative disease in solid organ transplantation recipients. Seven organ recipients from two different donors developed lymphoproliferative disease. The origin of the malignancy was determined by use of microsatellite analysis, and the plasma of the two donors was analyzed with the use of electrophoresis. The clinical courses of the seven recipients were followed for 36-60 months. One donor transmitted lymphoplasmacytic lymphoma to two kidney recipients and MGUS to a liver recipient, all IgMκ. A second donor caused IgGλ myeloma in two kidney and one liver recipient, and IgGλ gammopathy in a heart recipient. Transplant nephrectomy was performed in three kidney recipients and remission was achieved. The fourth kidney recipient has kept the graft and the disease has progressed. The liver recipient died from myeloma. There were no clinical signs of lymphoproliferative disease in the donors, but retrospective serum analyses showed M-components, IgMκ (37 g/L) and IgGλ (8 g/L). Donors with MGUS may cause donor-transmitted malignancies via passenger lymphocytes/plasma cells in solid organ recipients. The results call for a large register study of the incidence of donor MGUS and lymphoproliferative disease in their recipients.
Assuntos
Rejeição de Enxerto/etiologia , Transtornos Linfoproliferativos/etiologia , Transplante de Órgãos/efeitos adversos , Paraproteinemias/complicações , Doadores de Tecidos , Transplantados , Adulto , Idoso , Feminino , Seguimentos , Rejeição de Enxerto/diagnóstico , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Prognóstico , Fatores de RiscoRESUMO
Tailoring treatment by patient strata based on the risk of disease progression and treatment toxicity might improve outcomes of patients with posttransplant lymphoproliferative disorder (PTLD). We analysed the cohort of 70 patients treated in the international, multicenter phase II PTLD-1 trial (NCT01458548) to identify such factors. Of the previously published scoring systems in PTLD, the international prognostic index (IPI), the PTLD prognostic index and the Ghobrial score were predictive for overall survival. None of the scoring systems had a considerable effect on the risk for disease progression. Age and ECOG performance status were the baseline variables with the highest prognostic impact in the different scoring systems. Baseline variables not included in the scoring systems that had an impact on overall survival and disease progression were the type of transplant and the response to rituximab at interim staging. Thoracic organ transplant recipients who did not respond to rituximab monotherapy were at particularly high risk for death from disease progression with subsequent CHOP-based chemotherapy. Patients in complete remission after four courses of rituximab and patients in partial remission with low-risk IPI had a low risk of disease progression. We speculate that chemotherapy might not be necessary in this patient cohort.
Assuntos
Antígenos CD20/imunologia , Linfócitos B/imunologia , Transtornos Linfoproliferativos/tratamento farmacológico , Rituximab/uso terapêutico , Humanos , Transtornos Linfoproliferativos/imunologia , Transtornos Linfoproliferativos/patologia , Pessoa de Meia-Idade , PrognósticoRESUMO
Objetivo: Determinar las afecciones oculares de los pacientes diabéticos según se realice exclusivamente exploración de fondo de ojo con retinografía no midriática o exploración ampliada con agudeza visual (AV) y tonometría. Material y métodos: Diseño: estudio multicéntrico transversal con comparación de cohortes. Sujetos: Pacientes diabéticos atendidos en seis centros de Atención Primaria de Salud (APS). Intervenciones: a los pacientes de tres de los centros se les realizó una exploración oftalmológica completa: determinación de AV, determinación de presión intraocular (PIO) y fotografía de fondo de ojo con cámara de retina no midriática (FfoCNM). A los pacientes de los otros tres centros se les realizó únicamente la FfoCNM (exploración parcial). Derivación al Servicio de Oftalmología de los pacientes con sospecha diagnóstica de enfermedad. Resultados: Se realizó exploración oftalmológica completa en 938 pacientes (71%) y parcial en 383 (29%). Diagnósticos: a) sospecha de retinopatía diabética (RD): 123 casos (9,3%) sin diferencias entre exploración completa (9,1%) y parcial (9,3%); b) sospecha de glaucoma: 89 casos (8,1% en la exploración completa y 3,4% en la parcial [sospecha por alteración papilar en FfoCNM]); c) alteración de AV: 169 casos (18%) en la exploración completa. Derivación a la atención especializada del 41% de pacientes con exploración completa y del 18% de pacientes con exploración parcial. Conclusiones: Con la exploración exclusiva de fondo de ojo, con retinografía no midriática, se dejan de diagnosticar un elevado porcentaje de pacientes diabéticos con afección ocular distinta de la RD (alteraciones de AV y PIO) probablemente asociada a mayor prevalencia de cataratas y glaucoma en esta población (AU)
Objetive: To screen for eye disease in diabetic patients by performing only an eye fundus examination with non-mydriatic retinography, or a more extensive ophthalmological examination including visual acuity (VA) and ocular tonometry. Material and methods: Design: A cross-sectional multicentre study with cohort comparison. Subjects: Diabetic patients who attended 6 Primary Health Care Centres (PCC). Interventions: complete ophthalmological examination of patients in 3 PCC: VA examination, intraocular pressure (IOP) measurement and eye fundus examination with non-mydriatic retinography (egphNMC). Partial examination of patients of the other 3 PCC: only an eye fundus examination with non-mydriatic retinography. Patients with a suspicion of eye disease were referred to the Ophthalmology Department. Results: A complete ophthalmological examination was carried out on 938 patients (71%) and a partial examination in 383 (29%). Diagnosis: a) suspicion of diabetic retinopathy (DR): 123 cases (9.3%), with no differences between the complete examination (9.1%) and partial examination (9.3%); b) suspicion of glaucoma: 89 cases (8.1% in complete examination and 3.4% in partial (suspicion due to papillary alteration in egphNMC)); c) VA changes: 169 cases (18%) in complete examination. Referral to ophthalmology service was made in 41% of patients with complete examination and 18% in patients with partial examination. Conclusions: Using only back of the eye examination with a non-mydriatic camera, a high percentage of diabetic patients were not diagnosed with an eye disease distinct to diabetic retinopathy (VA and IOP alterations), which are probably associated to a higher percentage of cataracts and glaucoma in this group (AU)
Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Fundo de Olho , Acuidade Visual/fisiologia , Pressão Intraocular/fisiologia , Retinopatia Diabética/complicações , Retinopatia Diabética/diagnóstico , Manometria/métodos , Glaucoma , Programas de Rastreamento/métodos , Retina/patologia , Retina , Doenças Retinianas , Eletrorretinografia/métodos , Retinopatia Diabética/fisiopatologia , Retinopatia Diabética , Estudos Transversais/métodos , Atenção Primária à Saúde/métodos , Estudos de CoortesRESUMO
OBJECTIVE: To screen for eye disease in diabetic patients by performing only an eye fundus examination with non-mydriatic retinography, or a more extensive ophthalmological examination including visual acuity (VA) and ocular tonometry. DESIGN: A cross-sectional multicentre study with cohort comparison. SUBJECTS: Diabetic patients who attended 6 Primary Health Care Centres (PCC). INTERVENTIONS: complete ophthalmological examination of patients in 3 PCC: VA examination, intraocular pressure (IOP) measurement and eye fundus examination with non-mydriatic retinography (egphNMC). Partial examination of patients of the other 3 PCC: only an eye fundus examination with non-mydriatic retinography. Patients with a suspicion of eye disease were referred to the Ophthalmology Department. RESULTS: A complete ophthalmological examination was carried out on 938 patients (71%) and a partial examination in 383 (29%). DIAGNOSIS: a) suspicion of diabetic retinopathy (DR): 123 cases (9.3%), with no differences between the complete examination (9.1%) and partial examination (9.3%); b) suspicion of glaucoma: 89 cases (8.1% in complete examination and 3.4% in partial (suspicion due to papillary alteration in egphNMC)); c) VA changes: 169 cases (18%) in complete examination. Referral to ophthalmology service was made in 41% of patients with complete examination and 18% in patients with partial examination. CONCLUSIONS: Using only back of the eye examination with a non-mydriatic camera, a high percentage of diabetic patients were not diagnosed with an eye disease distinct to diabetic retinopathy (VA and IOP alterations), which are probably associated to a higher percentage of cataracts and glaucoma in this group.
Assuntos
Retinopatia Diabética/diagnóstico , Retinopatia Diabética/fisiopatologia , Fundo de Olho , Pressão Intraocular , Tonometria Ocular , Acuidade Visual , Estudos Transversais , Técnicas de Diagnóstico Oftalmológico , Humanos , FotografaçãoRESUMO
This study estimated the risk of second primary malignancies after Hodgkin's lymphoma (HL) in relation to family history of cancer, age at diagnosis and latency, among 6946 patients treated for HL in Sweden in 1965-1995 identified through the Swedish Cancer Register (SCR). First-degree relatives (FDRs) to the HL patients and their malignancies were then ascertained together with their malignancies through the Multi-Generation Registry and SCR. The HL patient cohort was stratified on the number of FDRs with cancer, and standardised incidence ratios (SIRs) of developing SM were analysed. In the HL cohort, 781 SM were observed 1 year or longer after HL diagnosis. The risk for developing SM increased with the number of FDRs with cancer, SIRs being 2.26, 3.01, and 3.45 with 0, 1, or >or=2 FDRs with cancer, respectively. Hodgkin's lymphoma long-term survivors treated at a young age with a family history of cancer carry an increased risk for developing SM and may represent a subgroup where standardised screening for the most common cancer sites could be offered in a stringent surveillance programme.
Assuntos
Doença de Hodgkin/complicações , Segunda Neoplasia Primária/etiologia , Neoplasias/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Doença de Hodgkin/genética , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Segunda Neoplasia Primária/epidemiologia , Fatores de RiscoRESUMO
No disponible
Assuntos
Humanos , Artrite Reumatoide/tratamento farmacológico , Metotrexato/farmacologia , Antirreumáticos/farmacologia , Metotrexato/economia , Antirreumáticos/economia , Quimioterapia Combinada , Resultado do TratamentoRESUMO
PURPOSE: Interstitial cystitis (IC) is a disorder of unknown etiology with few effective therapies. Oral bioflavonoid therapy utilizing quercetin recently proved to be clinically effective in men with chronic pelvic pain syndrome, a disorder with similarities to IC. We therefore tested in an open-label trial a quercetin-based supplement in patients with clinically proven IC. MATERIALS AND METHODS: Twenty-two patients (5 men and 17 women; average age 53.1 years) with classically documented IC received one capsule of Cysta-Q complex (equivalent to 500 mg of quercetin) twice a day for 4 weeks. Symptoms were assessed before and after therapy by the IC problem and symptom indices as well as by global assessment of pain (range 0-10). RESULTS: Two patients did not complete the study. In the remaining 20 patients, improvement was seen in all three parameters tested. After 4 weeks of treatment, the mean (+/- SEM) problem index improved from 11.3 +/- 0.6 to 5.1 +/- 0.7 (p = .000001), the mean symptom index improved from 11.9 +/- 0.9 to 4.5 +/- 0.5 (p = .000001), and the mean global assessment score improved from 8.2 +/- 0.4 to 3.5 +/- 0.4 (p = .000001). None of the patients experienced any negative side effects, and all but one patient had at least some improvement in every outcome measure. CONCLUSION: Oral therapy with the quercetin supplement Cysta-Q was well tolerated and provided significant symptomatic improvement in patients with IC. Larger, randomized, placebo-controlled trials appear warranted based on these preliminary open-label results.
Assuntos
Cistite Intersticial/tratamento farmacológico , Quercetina/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeAssuntos
Sobrevivência de Enxerto , Transplante de Rim/fisiologia , Redes Neurais de Computação , Creatinina/sangue , Humanos , Incidência , Transplante de Rim/imunologia , Prontuários Médicos , Complicações Pós-Operatórias/epidemiologia , Valor Preditivo dos Testes , Estudos Retrospectivos , Doadores de TecidosRESUMO
Our purpose was to study the factors predictive of graft loss or patient death within 3 yr of renal transplant in a county population. 363 renal transplants performed between 1984 and 1991 at the Harbor-UCLA Medical Center were reviewed. There were 16 recipients (4%) who died and 76 (21%) who lost their grafts within 3 yr. Known causes of death were cardiac (44%), infection (38%) and malignancy (6%). There was a higher proportion of diabetics (44%), hypertensives (69%) and those with a past cardiac history (38%). There was also a high delayed graft function rate (56%). Of the 76 grafts that failed in the first 3 yr, 14% were due to noncompliance, 20% to grafts that never functioned, 9% to technical problems, 21% to acute rejection, 9% to recurrent disease and 26% to chronic rejection. The noncompliance group were younger (mean 34 yr), and more likely to be a first transplant (90%) and be non-white (82%). The rejection group was significant for high delayed graft function rate (84%) and frequent and early rejection (76% at least one rejection). We conclude that fair organ allocation requires a balance between equity and utility, but patient death or graft loss within 3 yr benefits neither the patient or society. Patient survival may be improved with diligent cardiac evaluation, particularly in older patients and diabetics. Patient education and monitoring for noncompliance is essential, particularly in young first-time recipients. Maneuvers to decrease delayed graft function are essential to improve long-term results.
Assuntos
Rejeição de Enxerto/mortalidade , Transplante de Rim/mortalidade , Adolescente , Adulto , Idoso , Causas de Morte , Sobrevivência de Enxerto , Humanos , Pessoa de Meia-Idade , Cooperação do Paciente , Seleção de Pacientes , Fatores de Risco , Fatores Socioeconômicos , Análise de SobrevidaRESUMO
PURPOSE: We developed a technical and immunological protocol to increase survival of renal transplants from pediatric donors. MATERIALS AND METHODS: En bloc kidneys (22) were procured from donors weighing 2 to 14 kg. (1 to 60 months old) and transplanted into adult recipients. In group 1 (12 patients) sequential therapy was used for kidneys with more than 35 hours of cold storage and immediate triple therapy (cyclosporine, azathioprine and prednisone) was used for those with less than 35 hours of cold storage. In group 2 (10 patients) OKT3 induction therapy was used. Mean followup was 4.7 years. RESULTS: Mean blood pressure at 1 and 4 years was not significantly different between the groups. Mean serum creatinine was not significantly different between the groups at 1 year but it was significantly less in group 2 at 4 years (1.9 +/- 1.0 versus 1.2 +/- 0.24 mg./dl., p <0.05). At 1 year of followup the complication rate was 75% in 9 of 12 patients in group 1, including 4 infections or leaks (2 lost), 6 rejections (3 lost) and 3 cases of thrombosis or hemorrhage, and 20% (p <0.01) in group 2 (1 patient had the hemolytic uremic syndrome leading to graft loss). Graft survival was significantly greater in group 2 at all 4 years of followup (p = 0.05). CONCLUSIONS: The success of pediatric en bloc renal transplantation can be enhanced by induction therapy in healthy recipients.
Assuntos
Sobrevivência de Enxerto , Transplante de Rim/métodos , Pré-Escolar , Seguimentos , Humanos , Lactente , Doadores de TecidosRESUMO
Immunosuppression with Cs regimens has not significantly altered infection patterns relative to earlier modalities. However, reports of increased infection, especially with CMV/PCC, are not borne out in our experience both in numbers and timing of infections. Patients on low-dose Cs immunosuppression do continue to acquire infectious complications but, in general, rarely will lose their grafts or lives.
Assuntos
Ciclosporinas/uso terapêutico , Transplante de Rim , Infecções Oportunistas , Complicações Pós-Operatórias/microbiologia , Sobrevivência de Enxerto , HumanosRESUMO
During a 36-month period 100 patients received 104 cadaveric renal transplants with cyclosporine-based immunosuppression. Of the patients 26 required 31 additional operations. Of the 19 secondary operations performed 1 month after transplantation 18 were emergency in nature, whereas beyond this period the majority of the procedures were elective. Both deaths in this series were related to the operation. Only 1 graft loss was directly attributed to a secondary operation. The patient undergoing cadaveric renal transplantation is at significant risk (25 per cent) of requiring at least 1 additional operation. However, despite this high probability of reoperation, graft loss and patient death after such procedures should be rare.
Assuntos
Ciclosporinas/administração & dosagem , Transplante de Rim , Adulto , Idoso , Cadáver , Feminino , Sobrevivência de Enxerto/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , ReoperaçãoRESUMO
Certain nonsteroidal anti-inflammatory drugs (NSAID) of the fenamate chemical class are known to cause diarrhea in clinical use. Paradoxically, this action is shared by prostaglandins, against whose syntheses are inhibited by NSAID. This study was done to investigate the laxative potential of 5 NSAID (meclofenamate, flufenamate, mefenamate, indomethacin and aspirin). The ability to produce a laxative response was assessed by determining effects on fluid absorption in vitro in hamster everted sacs and by the enteropooling assay in hamster small intestine. In addition, the lytic action of these drugs on the erythrocyte membrane was determined to arrive at a possible mechanism of action. All of the NSAID, except aspirin, produced dose-related inhibition of fluid transport, similar to prostaglandin E1 and E2. The order of inhibition was flufenamate greater than meclofenamate greater than mefenamate greater than indomethacin. Like results were obtained when enteropooling was measured in vivo. Flufenamate and meclofenamate produced lumenal fluid accumulation comparable to two laxatives, dioctyl sodium sulfosuccinate and ricinoleic acid. Finally, the effects of these NSAID on fluid movement paralleled their lytic action on the erythrocyte membrane model, suggesting that NSAID may produce diarrhea in a manner similar to certain laxatives, by increasing mucosal permeability through membrane damage.