Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 21
Filtrar
1.
Virtual Real ; : 1-13, 2022 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-36533192

RESUMO

Cognitive impairment is not uncommon in patients with end-stage renal disease and can make it more difficult for these patients to carry out peritoneal dialysis (PD) on their own. Their attempts to do so may result in adverse consequences such as peritonitis. PD exchange is a complex procedure demanding knowledge and skill which requires close supervision and guidance by a renal nurse specialist. In this study, a non-immersive virtual reality (VR) training program using a Leap motion hand tracking device was developed to facilitate patients' understanding and learning of the PD exchange procedure before attempting real task practice. This study was a two-center single-blinded randomized controlled trial on 23 incident PD patients. Patients in the experimental group received 8 sessions of VR training, while patients in the control were provided with printed educational materials. The results showed that there were significant differences between the two groups in performance of the overall PD exchange sequence, especially on the crucial steps. VR had a patient satisfaction rate of 89%, and all patients preferred to have the VR aid incorporated in PD training. Our findings conclude VR can be a useful aid in the training and reinforcement of PD exchange procedures, with distinct merits of being free from restrictions of time, space, and manpower.

2.
Nephrology (Carlton) ; 26(9): 733-741, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33844381

RESUMO

AIM: Darbepoetin alpha is available as Aranesp® and NESP®, which differ in the inactive component and maximum dose-strength of prefilled syringes. We conducted an observational cohort study to investigate optimal conversion strategies and the feasibility of extending dosing intervals with higher-dose preparations in dialysis patients converting from Aranesp® to NESP®. METHODS: Adult dialysis patients on Aranesp® with stable haemoglobin of 9-12 g/dL were converted to NESP® at the same monthly total dose according to one of three conversion regimens. Group A included patients on ≤80 mcg/month of Aranesp® who converted with dosing regimen unchanged. Group B patients converted to NESP® with extended dosing intervals using higher individual dose preparations. Group C were patients on 100 mcg Aranesp® who converted to NESP® 120 mcg with extended dosing intervals. Patients were observed for 6 months. RESULTS: Fifty patients were included. All 24 Group A patients maintained stable haemoglobin. In Group B, 10 patients (50%) maintained stable haemoglobin with extension of dosing interval from 1.04 ± 0.14 to 3.03 ± 1.28 weeks. Factors associated with success in extending dosing interval included a lower prevalence of cardiovascular disease and a higher Kt/Vurea in peritoneal dialysis patients. Four patients (80%) in Group C maintained stable haemoglobin after conversion to NESP® 120 mcg with extended dosing interval. The use of NESP® 120 mcg was well tolerated, and was associated with reduced patient-reported pain score and 38% reduction of drug cost. CONCLUSION: Dialysis patients on Aranesp® can be successfully converted to NESP® and the dosing interval can be extended successfully in a significant proportion of patients, which could reduce discomfort and drug cost.


Assuntos
Anemia/tratamento farmacológico , Darbepoetina alfa/administração & dosagem , Hematínicos/administração & dosagem , Falência Renal Crônica/terapia , Diálise Renal , Idoso , Anemia/diagnóstico , Anemia/etiologia , Estudos de Coortes , Darbepoetina alfa/economia , Esquema de Medicação , Custos de Medicamentos , Estudos de Viabilidade , Feminino , Hematínicos/economia , Hemoglobinas/metabolismo , Humanos , Falência Renal Crônica/sangue , Falência Renal Crônica/complicações , Masculino , Pessoa de Meia-Idade
3.
Nephrol Dial Transplant ; 36(9): 1648-1656, 2021 08 27.
Artigo em Inglês | MEDLINE | ID: mdl-32617578

RESUMO

BACKGROUND: The potential long-term safety and efficacy of aliskiren in nondiabetic chronic kidney disease (CKD) are unknown. We sought to investigate the renoprotective effect of aliskiren on nondiabetic CKD patients. METHODS: In this open-label, parallel, randomized controlled trial, nondiabetic CKD Stages 3-4 patients were randomized to receive aliskiren added to an angiotensin II receptor blocker (ARB) at the maximal tolerated dose, or ARB alone. Primary outcome was the rate of change in estimated glomerular filtration rate (eGFR). Secondary endpoints included rate of change in urine protein-to-creatinine ratio (UPCR), cardiovascular events and hyperkalemia. Composite renal outcomes of doubling of baseline serum creatinine or a 40% reduction in eGFR or incident end-stage renal disease or death were analyzed as post hoc analysis. RESULTS: Seventy-six patients were randomized: 37 to aliskiren (mean age 55.1 ± 11.1 years) and 39 to control (mean age 55.0 ± 9.4 years). Their baseline demographics were comparable to eGFR (31.9 ± 9.0 versus 27.7 ± 9.0 mL/min/1.73 m2, P = 0.05) and UPCR (30.7 ± 12.6 versus 47.8 ± 2.8 mg/mmol, P = 0.33) for treatment versus control subjects. After 144 weeks of follow-up, there was no difference in the rate of eGFR change between groups. Six patients in the aliskiren group and seven in the control group reached the renal composite endpoint (16.2% versus 17.9%, P = 0.84). The cardiovascular event rate was 10.8% versus 2.6% (P = 0.217). The hyperkalemia rate was 18.9% versus 5.1% with an adjusted hazard ratio of 7.71 (95% confidence interval 1.14 to 52.3, P = 0.04) for the aliskiren arm. CONCLUSION: Aliskiren neither conferred additional renoprotective benefit nor increased adverse events, except for more hyperkalemia in nondiabetic CKD patients.


Assuntos
Insuficiência Renal Crônica , Renina , Adulto , Idoso , Antagonistas de Receptores de Angiotensina , Inibidores da Enzima Conversora de Angiotensina , Taxa de Filtração Glomerular , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico
4.
Nephrol Dial Transplant ; 34(9): 1565-1576, 2019 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-30668781

RESUMO

PURPOSE: To estimate the direct and indirect costs of end-stage renal disease (ESRD) patients in the first and second years of initiating peritoneal dialysis (PD), hospital-based haemodialysis (HD) and nocturnal home HD. METHODS: A cost analysis was performed to estimate the annual costs of PD, hospital-based HD and nocturnal home HD for ESRD patients from both the health service provider's and societal perspectives. Empirical data on healthcare resource use, patients' out-of-pocket costs, time spent on transportation and dialysis by ESRD patients and time spent by caregivers were analysed. All costs were expressed in Hong Kong year 2017 dollars. RESULTS: Analysis was based on 402 ESRD patients on maintenance dialysis (PD: 189; hospital-based HD: 170; and nocturnal home HD: 43). From the perspective of the healthcare provider, hospital-based HD had the highest total annual direct medical costs in the initial year (mean ± SD) (hospital-based HD = $400 057 ± 62 822; PD = $118 467 ± 15 559; nocturnal home HD = $223 358 ± 18 055; P < 0.001) and second year (hospital-based HD = $360 924 ± 63 014; PD = $80 796 ± 15 820; nocturnal home HD = $87 028 ± 9059; P < 0.001). From the societal perspective, hospital-based HD had the highest total annual costs in the initial year (hospital-based HD = $452 151 ± 73 327; PD = $189 191 ± 61 735; nocturnal home HD = $242 038 ± 28 281; P < 0.001) and second year (hospital-based HD = $413 017 ± 73 501; PD = $151 520 ± 60 353; nocturnal home HD = $105 708 ± 23 853; P < 0.001). CONCLUSIONS: This study quantified the economic burden of ESRD patients, and assessed the annual healthcare and societal costs in the initial and second years of PD, hospital-based HD and nocturnal home HD in Hong Kong. From both perspectives, PD is cost-saving relative to hospital-based HD and nocturnal home HD, except that nocturnal home HD has the lowest cost in the second year of treatment from the societal perspective. Results from this cost analysis facilitate economic evaluation in Hong Kong for health services and management targeted at ESRD patients.


Assuntos
Análise Custo-Benefício , Serviços de Saúde/economia , Hemodiálise no Domicílio/economia , Hospitais/estatística & dados numéricos , Falência Renal Crônica/economia , Diálise Renal/economia , Feminino , Hemodiálise no Domicílio/métodos , Hong Kong , Humanos , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Diálise Renal/classificação , Diálise Renal/métodos
5.
Nephrol Dial Transplant ; 34(3): 467-473, 2019 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-29509932

RESUMO

BACKGROUND: Serological activity may precede clinical flares of lupus nephritis (LN) but the management of asymptomatic serological reactivation (ASR) remains undefined. METHODS: We conducted a retrospective analysis of 138 episodes of ASR, which included 53 episodes in which immunosuppression was increased preemptively and 85 episodes in which treatment was unaltered. Preemptive immunosuppressive treatment comprised increasing the dose of prednisolone to ∼0.5 mg/kg/day, and in patients already on mycophenolate mofetil (MMF) or azathioprine (AZA), increasing the dose to 1.5 g/day and 100 mg/day, respectively. RESULTS: Thirty-four episodes of renal flare occurred during follow-up (88.8 ± 77.3 and 82.8 ± 89.7 months in the preemptive group and controls, respectively), following 5 (9.4%) of preemptively treated ASR and 27 (31.8%) of untreated ASR [hazard ratio 0.3 (confidence interval 0.1-0.7), P = 0.012]. Preemptive treatment was associated with superior survival free of renal relapse (99, 92 and 90% at 6, 12 and 24 month, respectively, compared with 94, 69 and 64% in controls; P = 0.011), whereas survival rate free of extrarenal relapse was similar in the two groups. Preemptively treated patients who did not develop renal flares showed better renal function preservation (estimated glomerular filtration rate slope +0.54 ± 0.43 mL/min/1.73 m2/year, compared with -2.11 ± 0.50 and -1.00 ± 0.33 mL/min/1.73 m2/year, respectively, in controls who did and did not develop subsequent renal flares; P = 0.001 and 0.012, respectively). Preemptive treatment was associated with an increased incidence of gastrointestinal side effects attributed to MMF (P = 0.031), whereas infection rate did not differ between the two groups. CONCLUSION: A preemptive moderate increase of immunosuppression for ASR in LN patients may reduce renal flares and confer benefit to long-term renal function.


Assuntos
Imunossupressores/uso terapêutico , Nefropatias/prevenção & controle , Nefrite Lúpica/tratamento farmacológico , Adulto , Azatioprina/uso terapêutico , Progressão da Doença , Feminino , Taxa de Filtração Glomerular , Humanos , Nefropatias/sangue , Nefropatias/mortalidade , Nefrite Lúpica/sangue , Masculino , Ácido Micofenólico/uso terapêutico , Prednisolona/uso terapêutico , Recidiva , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento
6.
Perit Dial Int ; 39(1): 74-82, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29991560

RESUMO

BACKGROUND: Starting dialysis is an important life event. The prevalence and evolution of psychological symptoms at commencement of long-term dialysis is unclear. We examined the prevalence of and risk factors for depression and anxiety, and the quality of life (QOL) of incident peritoneal dialysis (PD) patients, and also the change of these parameters in the first year of PD in relation to clinical outcomes under the PD-first policy. METHODS: All patients commencing long-term PD from March 2011 to April 2015 were asked to complete the Hospital Anxiety and Depression Scale (HADS), World Health Organization Quality of Life-BREF and the Kidney Disease Quality of Life Instrument Short Form questionnaire. Patient demographics and the incidence of hospitalization, peritonitis, exit-site infection, and all-cause mortality were studied. The HADS was repeated after 9 - 12 months. RESULTS: A high depression score was present in 39.6% of 191 patients at commencement of PD and was more common in diabetes patients (odds ratio [OR] 2.03, 95% confidence interval [CI] 1.09 - 3.81). A high anxiety score was present in 23.6%, and the risk factors included younger age (OR 0.96 per year, 95% CI 0.94 - 0.99) and diabetes (OR 2.59, 95% CI 1.20 - 5.57). Both high depression and anxiety scores were associated with an inferior QOL, overall and across most QOL domains. Depression and anxiety symptoms did not change in the first year of PD and were not associated with short-term clinical outcomes. CONCLUSIONS: High depression and anxiety scores were prevalent in incident PD patients where PD-first policy is adopted and were associated with inferior QOL. There was no improvement after 1 year of PD. The impact of strategic interventions targeting patient groups at risk such as those with diabetes or of younger age warrants further investigation.


Assuntos
Ansiedade/epidemiologia , Depressão/epidemiologia , Diálise Peritoneal/psicologia , Qualidade de Vida/psicologia , Adulto , Idoso , Ansiedade/etiologia , Depressão/etiologia , Feminino , Hong Kong/epidemiologia , Humanos , Falência Renal Crônica/mortalidade , Falência Renal Crônica/psicologia , Falência Renal Crônica/terapia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Diálise Peritoneal/efeitos adversos , Prevalência , Fatores de Risco , Inquéritos e Questionários , Análise de Sobrevida
7.
J Rheumatol ; 45(12): 1663-1670, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30275264

RESUMO

OBJECTIVE: To expand the limited longterm data on sirolimus treatment in patients with lupus nephritis (LN). Our pilot short-term data suggested efficacy of sirolimus treatment in these patients. METHODS: We retrospectively reviewed 16 class III/IV/V patients with LN who have received prednisolone (PSL) and sirolimus either as initial or maintenance treatment. RESULTS: Sixteen patients received sirolimus treatment (9 because of intolerance to standard immunosuppressants and 7 because of a history of malignancy) for 45.3 ± 36.5 months. In 5 patients, sirolimus and PSL were given as induction for active nephritis, and they showed improvements in proteinuria (2.8 ± 1.9 g/day at baseline, 0.1 ± 0.1 g/day after 36 mos, p = 0.011), anti-dsDNA (107.7 ± 91.9 IU/ml and 37.0 ± 55.4 IU/ml, respectively, p = 0.178), and C3 (54.8 ± 26.1 mg/dl and 86.3 ± 18.6 mg/dl, respectively, p = 0.081). Eleven patients received sirolimus and low-dose PSL as longterm maintenance, and they showed continued improvement in C3 (90.4 ± 18.1 mg/dl and 117.7 ± 25.1 mg/dl at commencement and after 36 mos, respectively, p = 0.025), stable renal function (estimated glomerular filtration rate 58.6 ± 25.8 ml/min and 63.0 ± 29.6 ml/min, respectively, p = 0.239), and proteinuria (0.8 ± 0.7 g/day and 0.7 ± 0.7 g/day respectively, p = 0.252). Renal flare occurred in 1 patient, and another patient who had stage 4 chronic kidney disease when sirolimus was started developed endstage renal failure after 27 months. Sirolimus was discontinued in 5 patients, in 4 cases related to drug side effects. Deterioration of dyslipidemia occurred in 4 patients, but was adequately controlled with statin therapy. CONCLUSION: The preliminary evidence suggests that sirolimus may serve as an alternative treatment for patients with LN who do not tolerate standard treatment or who had a history of malignancy, and it has an acceptable longterm safety profile.


Assuntos
Imunossupressores/uso terapêutico , Nefrite Lúpica/tratamento farmacológico , Sirolimo/uso terapêutico , Adulto , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prednisolona/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento
8.
J Rheumatol ; 44(9): 1375-1383, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28668803

RESUMO

OBJECTIVE: To examine the disease flare rate in lupus nephritis (LN), focusing on renal flares, and the factors associated with relapse risk in recent years. METHODS: We analyzed data on 139 Chinese patients with class III/IV ± V LN diagnosed from January 1983 to December 2013. We also compared data before and after 1998, when maintenance immunosuppression was changed from azathioprine (AZA) to mycophenolic acid (MPA). RESULTS: Over 112.5 ± 88.4 months, 135 episodes of renal flare occurred, giving a flare rate of 0.108 episodes per patient-year. The renal relapse-free survival rate was 96%, 90%, 86%, 80%, 69%, and 57% after 1, 2, 3, 4, 5, and 10 years, respectively, calculated from the start of induction treatment. Reduced risk of flare was associated with MPA maintenance (OR 0.314, 95% CI 0.099-0.994, p = 0.049), complete remission after induction immunosuppression (OR 0.329, 95% CI 0.133-0.810, p = 0.016), and diagnosis after 1998 (OR 0.305, 95% CI 0.133-0.700, p = 0.005). Relapse-free survival was significantly better in patients treated with prednisolone and MPA as maintenance immunosuppression (91% after 5 yrs and 83% after 10 yrs, respectively) compared with prednisolone and AZA (70% and 52%, respectively, p = 0.044). LN diagnosed in 1998-2013 showed 5-year and 10-year relapse-free survival rates of 93% and 86%, respectively, compared with 81% and 66%, respectively (p = 0.017) for LN that presented in 1983-1997. CONCLUSION: Our data show a relatively low flare rate for LN in the more recent era, attributed to effective induction of immunosuppression and MPA as maintenance treatment.


Assuntos
Nefrite Lúpica/diagnóstico , Adulto , Azatioprina/uso terapêutico , Progressão da Doença , Intervalo Livre de Doença , Feminino , Humanos , Imunossupressores/uso terapêutico , Nefrite Lúpica/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/uso terapêutico , Prednisolona/uso terapêutico , Recidiva , Indução de Remissão , Resultado do Tratamento , Adulto Jovem
10.
Perit Dial Int ; 37(1): 118-120, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28153970

RESUMO

H2 receptor antagonists are commonly employed to manage gastro-esophageal reflux and peptic ulcer diseases with a very low incidence of side effects. Herein, we report an extremely rare incidence of famotidine-induced acute confusion in a patient with end-stage renal failure. We also discuss the pharmacokinetic properties of famotidine and its interplay with compromised renal function to result in neuropsychiatric manifestations, highlighting the importance of dosage ad ustment in individuals with renal insufficiency.


Assuntos
Delírio/induzido quimicamente , Dispepsia/tratamento farmacológico , Famotidina/efeitos adversos , Falência Renal Crônica/terapia , Diálise Peritoneal/efeitos adversos , Doença Aguda , Delírio/fisiopatologia , Dispepsia/diagnóstico , Famotidina/uso terapêutico , Seguimentos , Humanos , Falência Renal Crônica/diagnóstico , Masculino , Pessoa de Meia-Idade , Diálise Peritoneal/métodos , Medição de Risco , Resultado do Tratamento , Suspensão de Tratamento
11.
PLoS One ; 11(11): e0166427, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27861530

RESUMO

BACKGROUND: Urine from kidney transplant recipient has proven to be a viable source for donor DNA. However, an optimized protocol would be required to determine mis-matched donor HLA specificities in view of the scarcity of DNA obtained in some cases. METHODS: In this study, fresh early morning urine specimens were obtained from 155 kidney transplant recipients with known donor HLA phenotype. DNA was extracted and typing of HLA-A, B and DRB1 loci by polymerase chain reaction-specific sequence primers was performed using tailor-made condition according to the concentration of extracted DNA. RESULTS: HLA typing of DNA extracted from urine revealed both recipient and donor HLA phenotypes, allowing the deduction of the unknown donor HLA and hence the degree of HLA mis-match. By adopting the modified procedures, mis-matched donor HLA phenotypes were successfully deduced in all of 35 tested urine samples at DNA quantities spanning the range of 620-24,000 ng. CONCLUSIONS: This urine-based method offers a promising and reliable non-invasive means for the identification of mis-matched donor HLA antigens in kidney transplant recipients with unknown donor HLA phenotype or otherwise inadequate donor information.


Assuntos
DNA/urina , Antígenos HLA/genética , Teste de Histocompatibilidade , Transplante de Rim , Doadores de Tecidos , Transplantados , Alelos , Rejeição de Enxerto/genética , Rejeição de Enxerto/imunologia , Sobrevivência de Enxerto/genética , Sobrevivência de Enxerto/imunologia , Antígenos HLA/imunologia , Teste de Histocompatibilidade/métodos , Humanos , Transplante de Rim/efeitos adversos , Reação em Cadeia da Polimerase , Fatores de Tempo
14.
Perit Dial Int ; 36(4): 390-4, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26493755

RESUMO

UNLABELLED: ♦ BACKGROUND: Burkholderia cepacia is a hardy bacterium with intrinsic resistance to multiple antibiotics and high transmissibility. Opportunistic healthcare-associated B. cepacia infections among immunocompromised or critically ill patients have been reported, but there is limited data on the clinical characteristics and treatment outcomes of exit-site infection (ESI) in peritoneal dialysis (PD) patients. ♦ PATIENTS AND METHODS: Patients who suffered from B. cepacia ESI from 1 January 2004 to 31 December 2014 were reviewed. The clinical characteristics and treatment outcomes of the patients and the antibiotic susceptibility patterns of the bacterial isolates were analyzed. ♦ RESULTS: Twenty-two patients were included for analysis. Eight patients (36.4%) had medical conditions which impaired host immunity, while 7 (31.8%) had pre-existing skin abnormalities. Three patients (13.6%) progressed to tunnel-tract infection and another 3 patients (13.6%) developed associated peritonitis. Fifteen patients (68.2%) responded to medical treatment while 7 (31.8%) required catheter removal. Eleven patients (50.0%) had recurrent B. cepacia ESI, which occurred at 7.8 months (95% confidence interval [CI] 0.1 - 19.4 months) after the first episode. Most B. cepacia strains were susceptible to ceftazidime (95.5%), piperacillin/tazobactam (95.5%), and piperacillin (90.9%). Besides aminoglycosides (80 - 100%), high rates of resistance were also observed for ticarcillin/clavulanate (90.9%). ♦ CONCLUSION: Burkholderia cepacia ESI is associated with low rates of tunnel-tract infection or peritonitis, but the risk of recurrence is high. Most cases can be managed with medical treatment alone, although one third of patients might require catheter removal.


Assuntos
Infecções por Burkholderia/diagnóstico , Infecções por Burkholderia/etiologia , Burkholderia cepacia , Infecções Relacionadas a Cateter/etiologia , Falência Renal Crônica/terapia , Diálise Peritoneal/efeitos adversos , Idoso , Antibacterianos/uso terapêutico , Infecções por Burkholderia/terapia , Infecções Relacionadas a Cateter/diagnóstico , Infecções Relacionadas a Cateter/terapia , Cateteres de Demora/efeitos adversos , Remoção de Dispositivo , Farmacorresistência Bacteriana , Feminino , Humanos , Falência Renal Crônica/etiologia , Masculino , Pessoa de Meia-Idade , Peritonite/diagnóstico , Peritonite/microbiologia , Peritonite/terapia , Estudos Retrospectivos , Resultado do Tratamento
16.
Rheumatology (Oxford) ; 53(12): 2232-7, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24996908

RESUMO

OBJECTIVE: Calcineurin inhibitors are effective immunosuppressants. They also reduce proteinuria in glomerular diseases but are potentially nephrotoxic. Short-term data suggest that tacrolimus (TAC) combined with corticosteroids is effective in LN, but long-term data are lacking. This study examined the long-term outcomes and tolerability of TAC for the treatment of LN. METHODS: We retrospectively reviewed 29 LN patients who received TAC treatment for 46.9 months (s.d. 37.9). RESULTS: In 17 patients with class III/IV or V LN and persistent proteinuria >2 g/day despite induction immunosuppression, response rates after 12 and 24 months of add-on TAC treatment were 66.7% and 80.0%, respectively. In 10 patients with nephrotic syndrome due to class V LN who were given prednisolone and TAC as initial treatment, the response rate was 60.0% and 90.0% after 12 and 24 months, respectively. TAC facilitated steroid minimization in two patients with lupus podocytopathy. As a group, proteinuria decreased from 3.6 g/day (s.d. 2.6) to 1.0 (s.d. 1.1) (P < 0.05). Four patients developed end-stage renal failure, with 3-, 5- and 8-year renal survival rates of 93%, 83% and 83%, respectively. In the remaining patients, serum creatinine and estimated GFR remained stable after 36 months. One patient with pre-existing chronic renal failure developed TAC nephrotoxicity. Four renal flares occurred, all associated with low TAC blood levels. Six patients (20.1%) had deterioration of hypertension and one patient (3.4%) had new-onset diabetes mellitus. Six patients (20.1%) had infections that required hospitalization. Two deaths occurred: one due to pneumonia and one to breast cancer. CONCLUSION: The results suggest efficacy of TAC in LN, especially in reducing proteinuria, and its role as a long-term maintenance agent warrants further investigation.


Assuntos
Imunossupressores/uso terapêutico , Nefrite Lúpica/tratamento farmacológico , Tacrolimo/uso terapêutico , Adulto , Creatinina/sangue , Avaliação de Medicamentos/métodos , Quimioterapia Combinada , Feminino , Taxa de Filtração Glomerular/efeitos dos fármacos , Glucocorticoides/uso terapêutico , Humanos , Imunossupressores/efeitos adversos , Nefrite Lúpica/sangue , Nefrite Lúpica/complicações , Nefrite Lúpica/fisiopatologia , Masculino , Pessoa de Meia-Idade , Prednisolona/uso terapêutico , Proteinúria/tratamento farmacológico , Proteinúria/etiologia , Proteinúria/fisiopatologia , Estudos Retrospectivos , Tacrolimo/efeitos adversos , Resultado do Tratamento
17.
Clin Transplant ; 28(9): 1010-5, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24974788

RESUMO

Although nucleotide/side analogs improve the clinical outcome of hepatitis B surface antigen-positive (HBsAg+) kidney transplant recipients (KTR), a significant proportion of subjects have developed resistance to lamivudine (LAM). We retrospectively analyzed the efficacy and tolerability of entecavir (ETV) in HBsAg+ KTR at Queen Mary Hospital during 2005-2013. Twenty-one patients (10 treatment-naïve, 11 with LAM resistance) were included (duration of ETV treatment 34.7 ± 22.9 months, range 6-75 months). ETV treatment led to a decline of hepatitis B virus (HBV) DNA titer compared to baseline and is more significant in the treatment-naïve group (treatment-naïve: p = 0.028, <0.001 and <0.001; LAM-resistant p = 0.273, 0.180, and 0.109 after 12, 24, and 36 months). The cumulative rate of HBV DNA undetectability at 12, 24, and 36 months was 60%, 100%, and 100% for treatment-naïve group, and 27%, 45%, and 45% for LAM-resistant group, respectively. Time-to-HBV DNA undetectability and time-to-alanine transaminase (ALT) normalization were 15.7 ± 4.6 and 12.6 ± 3.7 months for treatment-naïve patients, and 24.5 ± 4.2 and 28.2 ± 3.5 months for those with LAM resistance. Genotypic resistance to ETV emerged after 20.0 ± 3.5 months with increase in ALT and HBV DNA in two patients with LAM resistance, but was not observed in the treatment-naïve group. Allograft dysfunction, de novo cirrhosis, or hepatocellular carcinoma did not occur during follow-up.


Assuntos
Antivirais/uso terapêutico , Guanina/análogos & derivados , Hepatite B/tratamento farmacológico , Transplante de Rim , Transplantados , DNA Viral/genética , Farmacorresistência Viral/efeitos dos fármacos , Feminino , Seguimentos , Taxa de Filtração Glomerular , Guanina/uso terapêutico , Vírus da Hepatite B/genética , Vírus da Hepatite B/isolamento & purificação , Humanos , Testes de Função Renal , Lamivudina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco
18.
Ren Fail ; 36(2): 309-12, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24180243

RESUMO

Calcineurin and mTOR inhibitors are commonly used immunosuppressive agents with narrow therapeutic range. As the drugs are mainly metabolized by the P450 cytochrome system, the interaction between food and herbs are also commonly seen and affect the drug levels. We present a case of a kidney transplant recipient with toxic therapeutic levels of cyclosporine A and sirolimus due to interaction between the immunosuppressive agents and Chinese herbal tea. Ingredients within the herbal tea were reported to have inhibitory effect on cytochrome CYP3A4 in-vitro studies. Transplant recipients should be alert that there may be potent interaction between the immunosuppressive drugs and herbs resulting in adverse effect on allograft function.


Assuntos
Bebidas/efeitos adversos , Ciclosporina/farmacocinética , Imunossupressores/farmacocinética , Transplante de Rim , Sirolimo/farmacocinética , Disponibilidade Biológica , Ciclosporina/efeitos adversos , Citocromo P-450 CYP3A , Inibidores do Citocromo P-450 CYP3A , Interações Medicamentosas , Humanos , Imunossupressores/efeitos adversos , Falência Renal Crônica/cirurgia , Masculino , Pessoa de Meia-Idade , Sirolimo/efeitos adversos
19.
Ren Fail ; 35(7): 942-5, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23815459

RESUMO

A dose ratio of 1:1 was recommended for the conversion from Standard-release Tacrolimus (Prograf) to Prolonged-release Tacrolimus (Advagraf). We investigated the trough tacrolimus blood level in Chinese kidney transplant recipients after conversion, including subjects receiving concomitant treatment with diltiazem. Eighteen stable renal allograft recipients were followed prospectively for 12 weeks after conversion from Prograf to Advagraf at the same daily dose. Tacrolimus blood trough level decreased significantly within 8 weeks after conversion (p < 0.01). Twelve patients required escalation of the Advagraf dose by 1.10 ± 0.36 mg. For the whole group the daily tacrolimus dose was increased from 0.057 ± 0.032 mg/kg to 0.068 ± 0.033 mg/kg (p < 0.0001). At week 12 the daily dose of Advagraf was 127 ± 32% of the original daily dose of Prograf. In the subgroup of patients receiving diltiazem, their tacrolimus trough level decreased significantly after conversion (p = 0.001), and the daily tacrolimus dose was increased from 0.060 ± 0.036 mg/kg to 0.073 ± 0.036 mg/kg (p < 0.0001). At week 12, their daily dose of Advagraf was 131 ± 34% of the original daily dose before conversion. To conclude, conversion from Prograf to Advagraf in renal allograft recipients with or without diltiazem co-treatment necessitated an increase in the daily dose by approximately 30% to maintain the target blood trough level unchanged.


Assuntos
Diltiazem , Rejeição de Enxerto/prevenção & controle , Transplante de Rim , Tacrolimo , Adulto , Anti-Hipertensivos/administração & dosagem , Anti-Hipertensivos/efeitos adversos , Distribuição de Qui-Quadrado , China , Preparações de Ação Retardada , Diltiazem/administração & dosagem , Diltiazem/efeitos adversos , Relação Dose-Resposta a Droga , Esquema de Medicação , Interações Medicamentosas , Monitoramento de Medicamentos/métodos , Feminino , Humanos , Imunossupressores/administração & dosagem , Imunossupressores/efeitos adversos , Imunossupressores/sangue , Transplante de Rim/métodos , Transplante de Rim/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Tacrolimo/administração & dosagem , Tacrolimo/efeitos adversos , Tacrolimo/sangue , Resultado do Tratamento
20.
Rheumatology (Oxford) ; 52(3): 480-6, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23148090

RESUMO

OBJECTIVE: We investigated the long-term outcome of patients with proliferative LN treated with CSs and MMF. METHODS: This was a single-centre retrospective study on patients with biopsy-proven class III/IV ± V LN treated with prednisolone and MMF continuously as both early and maintenance immunosuppression. RESULTS: Sixty-five patients were included, and followed for 91.9 (47.7) months. All received prednisolone and MMF as induction immunosuppression. In 31 patients, maintenance immunosuppression comprised prednisolone and MMF only (MMF-MMF group). MMF was replaced with AZA in 23 patients (MMF-AZA), and with calcineurin inhibitors (CNIs) in 11 patients (MMF-CNI) at sometime during follow-up. Ten-year patient and renal survival rates were 91% and 86%, respectively, and were similar in the three groups. MMF-MMF group showed better relapse-free survival than MMF-AZA and MMF-CNI patients (76% vs 56% vs 43%, respectively at 5 years; 69% vs 32% vs 0%, respectively at 10 years; MMF-MMF vs MMF-AZA or MMF-CNI, P = 0.049 or 0.019, respectively; MMF-AZA vs MMF-CNI, P = 0.490). Patients treated with MMF for >24 months had better relapse-free survival than those treated for shorter durations (88% vs 48% at 5 years; 81% vs 28% at 10 years; P < 0.001). Renal function at 10 years was better in the MMF-MMF group. Anaemia was associated with MMF treatment. Other adverse events were comparable and relatively minor with MMF, AZA or CNI as maintenance. CONCLUSION: Long-term treatment with CSs and MMF from induction to maintenance phase is associated with relatively favourable long-term outcome in Chinese LN patients. Discontinuation of MMF before 24 months may increase the risk of flares.


Assuntos
Anti-Inflamatórios/uso terapêutico , Imunossupressores/uso terapêutico , Nefrite Lúpica/tratamento farmacológico , Ácido Micofenólico/análogos & derivados , Prednisolona/uso terapêutico , Adulto , Intervalo Livre de Doença , Quimioterapia Combinada , Feminino , Humanos , Estudos Longitudinais , Nefrite Lúpica/mortalidade , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...