ABSTRACT
BACKGROUND: Death with a functioning graft is currently one of the main causes of kidney graft loss. A large proportion of cases is attributed to infectious complications that can be related to overimmunosuppression. We retrospectively studied 80 kidney transplant patients, grafted from January 2005 to December 2009, to assess the prevalence of excessive immunosuppression, and its possible correlation with infections and infection-related death. METHODS: Excessive immunosuppression was defined by a prescribed dosage above the expected to the time point or an elevated drug blood level according to the Kidney Disease: Improving Global Outcomes (2009) recommendations at 1, 3, 6, and 12 months, and then annually. RESULTS: Death with a functioning graft accounted for 76.5% of losses. Overall, 53.8% of deaths were from infections, and 38.5% from cardiovascular causes. Acute rejection episodes were noted in 8.8% of patients. Only 10% of patients had adequate immunosuppression throughout the follow-up. Seventy-two percent of patients showed adequate immunosuppression at least half of the 18 evaluated points, although 50% showed between 1 and 3 drugs administered above recommended dosages during the whole period. Infections were recorded in 78.8% patients, with a median of 3 episodes per patient. Any level of excessive immunosuppression was associated with infections (odds ratio, 11.2; P < .001), but not with death caused thereby. CONCLUSION: Excessive immunosuppression among this cohort was associated with a greater incidence of infections, but not with death from this cause.
Subject(s)
Immunosuppressive Agents/adverse effects , Kidney Transplantation/adverse effects , Postoperative Complications/epidemiology , Acute Disease , Adult , Cardiovascular Diseases/epidemiology , Communicable Diseases/epidemiology , Cross-Sectional Studies , Drug Monitoring , Female , Graft Rejection/epidemiology , Humans , Immunosuppressive Agents/blood , Incidence , Kidney Transplantation/mortality , Male , Middle Aged , Odds Ratio , Postoperative Complications/chemically induced , Postoperative Complications/mortality , Prevalence , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Treatment OutcomeABSTRACT
Non-adherence to drug therapy has not been extensively studied in patients with chronic kidney disease (CKD). The objective of the present study was to identify determinants of non-adherence to drug therapy in patients with CKD, not on dialysis. A prospective cohort study involving 149 patients was conducted over a period of 12 months. Adherence to drug therapy was evaluated by the self-report method at baseline and at 12 months. Patients who knew the type of drug(s) and the respective number of prescribed pills in use at the visit preceding the interview were considered to be adherent. Patients with cognitive decline were assessed by interviewing their caregivers. Mean patient age was 51 ± 16.7 years. Male patients predominated (60.4 percent). Univariate analysis performed at baseline showed that non-adherence was associated with older age, more pills taken per day, worse renal function, presence of coronary artery disease, and reliance on caregivers for the administration of their medications. In multivariate analysis, the factors that were significantly associated with non-adherence were daily use of more than 5 pills and drug administration by a caregiver. Longitudinal evaluation showed an increase in non-adherence over time. Medication non-adherence was lower (17.4 percent) at the baseline period of the study than after 1 year of the study (26.8 percent). Compared to the baseline period, the percentage of adherent patients who became non-adherent (22 percent) was lower than the percentage of non-adherent patients who became adherent (50 percent). In CKD patients not on dialysis, non-adherence was significantly associated with the number of pills taken per day and drug administration by third parties. Adherence is more frequent than non-adherence over time.
Subject(s)
Female , Humans , Male , Middle Aged , Antihypertensive Agents/therapeutic use , Diuretics/therapeutic use , Kidney Failure, Chronic/drug therapy , Medication Adherence/statistics & numerical data , Brazil , Cohort Studies , Multivariate Analysis , Prospective Studies , Self Report , Socioeconomic FactorsABSTRACT
Non-adherence to drug therapy has not been extensively studied in patients with chronic kidney disease (CKD). The objective of the present study was to identify determinants of non-adherence to drug therapy in patients with CKD, not on dialysis. A prospective cohort study involving 149 patients was conducted over a period of 12 months. Adherence to drug therapy was evaluated by the self-report method at baseline and at 12 months. Patients who knew the type of drug(s) and the respective number of prescribed pills in use at the visit preceding the interview were considered to be adherent. Patients with cognitive decline were assessed by interviewing their caregivers. Mean patient age was 51 ± 16.7 years. Male patients predominated (60.4%). Univariate analysis performed at baseline showed that non-adherence was associated with older age, more pills taken per day, worse renal function, presence of coronary artery disease, and reliance on caregivers for the administration of their medications. In multivariate analysis, the factors that were significantly associated with non-adherence were daily use of more than 5 pills and drug administration by a caregiver. Longitudinal evaluation showed an increase in non-adherence over time. Medication non-adherence was lower (17.4%) at the baseline period of the study than after 1 year of the study (26.8%). Compared to the baseline period, the percentage of adherent patients who became non-adherent (22%) was lower than the percentage of non-adherent patients who became adherent (50%). In CKD patients not on dialysis, non-adherence was significantly associated with the number of pills taken per day and drug administration by third parties. Adherence is more frequent than non-adherence over time.
