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From a fish tank injury to hospital haemodialysis: the serious consequences of drug interactions.

ABSTRACT: We present the case of a 68-year-old man admitted to hospital with severe acute kidney injury secondary to statin-induced rhabdomyolysis. Five weeks previously, the patient started a course of clarithromycin for infection of a finger wound with Mycobacterium marinum. His current medications included simvastatin, which he continued along with clarithromycin. The severity of the acute kidney injury necessitated initial continuous venovenous haemofiltration followed by 12 haemodialysis sessions before a spontaneous improvement in renal function occurred. Statins are widely prescribed and we report this case to encourage increased vigilance in avoiding drug interactions known to increase the risk of statin-induced myopathy, including macrolide antibiotics, calcium channel antagonists and amiodarone. The authors would also like to highlight recent guidance on atorvastatin as the statin of choice in patients with chronic kidney disease, and of the need for dose adjustment in those with an estimated glomerular filtration rate less than 30 mLs/min/1.73 m².

SUBMITTER: Hill FJ

PROVIDER: S-EPMC4480123 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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From a fish tank injury to hospital haemodialysis: the serious consequences of drug interactions.

Hill Fay Joanne FJ McCloskey Sarah Jane SJ Sheerin Neil N

BMJ case reports 20150623

We present the case of a 68-year-old man admitted to hospital with severe acute kidney injury secondary to statin-induced rhabdomyolysis. Five weeks previously, the patient started a course of clarithromycin for infection of a finger wound with Mycobacterium marinum. His current medications included simvastatin, which he continued along with clarithromycin. The severity of the acute kidney injury necessitated initial continuous venovenous haemofiltration followed by 12 haemodialysis sessions bef ...[more]

PMID: 26106178

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Project description:Background:The Protecting Canadians from Unsafe Drugs Act will eventually require institutions to report all serious adverse drug reactions (ADRs), although the proposed regulations do not yet define what will need to be reported and by whom. Knowledge about the occurrence of serious ADRs in the hospital setting is needed to optimize the effectiveness of reporting and to determine the potential implications of mandatory reporting. Objectives:To quantify and characterize suspected serious ADRs in patients admitted to a general medicine service, to assess the likelihood of causality, and to determine inter-rater agreement for identification of ADRs and assessment of their likelihood. Methods:This prospective observational study involved 60 consecutive patients admitted to a general medicine service at a tertiary care teaching centre starting on March 28, 2016. The primary outcome was the number of serious ADRs, defined by Health Canada as ADRs that result in hospital admission, congenital malformation, persistent or significant disability or incapacity, or death; that are life-threatening; or that require significant intervention to prevent one of these outcomes. Medical records were reviewed independently by pairs of pharmacists for serious ADRs, and the likelihood of causality was assessed using the World Health Organization-Uppsala Monitoring Centre system. Inter-rater agreement was calculated using the kappa score, and disagreements were resolved by discussion and consensus. Results:Twenty-three serious ADRs occurred in the sample of 60 patients. The proportion of patients experiencing a serious ADR that contributed to the original hospital admission was 19/60 (32%, 95% confidence interval [CI] 20%-43%), and 4 patients (7%, 95% CI 0%-13%) experienced a serious ADR during their hospital stay. Inter-rater agreement for occurrence of serious ADRs was moderate (kappa 0.58, 95% CI 0.35-0.76). Conclusion:Reportable serious ADRs were common among patients admitted to a general medicine service. Canadian hospitals would face difficulties reporting all serious ADRs because of the frequency of their occurrence and the subjectivity of their identification.

Project description:Background and Objectives:The drugs most commonly implicated in major potential interactions are those used in the day-to-day clinical management of elderly patients with chronic diseases. This study is planned to evaluate the profile of drug-drug interactions in the medications prescribed to elderly population and also to identify the possible predictors for potential drug-drug interactions in the elderly. Methods:This cross-sectional study included patients aged above 60 years with a minimum of two drugs in the prescriptions. Data were collected from medical prescriptions and patients' medical records. The data collected included demographic characteristics such as age, gender, height, weight, educational status, socioeconomic status, medical history, and medications prescribed. The prescriptions were analyzed for the potential drug interactions using Lexi-Interact™ Online, an online software to check drug-drug interactions. Results:A total of 209 patients were included in the study, among them 104 (49.8%) were males and 105 (50.2%) were females. The mean number of medications received was 6.53?±?2.15 per prescription. Around 138 (66%) patients received more than six medications. The mean number of potential drug interactions seen in the prescription of these patients was 3.17?±?2.78. Around 18.2% patients had more than five drug interactions. Major drug interactions were observed in 21.42% of cases. Around 3.02% of drug interactions belonged to risk category X, i.e., to be avoided. Logistic regression analysis showed that age above 70 years was associated with the presence of drug interactions. Increased number of medication was independently associated with the occurrence of drug interactions. The presence of drug interactions was not associated with increased number of comorbidities. Conclusion:A significant number of potential drug-drug interactions were seen in the prescriptions of elderly patients. Increasing age and polypharmacy were identified as the predictors of potential drug interactions.

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From a fish tank injury to hospital haemodialysis: the serious consequences of drug interactions.

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From a fish tank injury to hospital haemodialysis: the serious consequences of drug interactions.

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