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1.
Br J Clin Pharmacol ; 88(9): 4092-4099, 2022 09.
Article in English | MEDLINE | ID: mdl-35384015

ABSTRACT

AIMS: Antithrombotic management initiatives could prevent inappropriate prescribing and improve patient outcomes especially in patients on combined antithrombotic therapy. To investigate this, a multidisciplinary antithrombotic stewardship program (ASP) was implemented in our hospital. The primary aim of this study was to determine the efficacy of this ASP by assessing the number of patients on combined antithrombotic therapy for whom one or more interventions were needed. METHODS: A prospective cohort study in a large teaching hospital was conducted. Hospitalized patients were included who received combined antithrombotic therapy in which an oral anticoagulant was combined with one (double therapy) or two (triple therapy) platelet aggregation inhibitors. The ASP proactively evaluated the appropriateness of this combined antithrombotic therapy. If needed, ASP improved the concerned therapy. Each improvement measurement recommended by the ASP was counted as one intervention. RESULTS: A total of 460 patients were included over a period of 12 months. Of these, 251 (54.6%) patients required at least one intervention from the ASP. The most common interventions were: (1) to define and document the maximum duration of the combined antithrombotic therapy needed instead of lifetime use of the combination (65.5%), (2) to discontinue antithrombotic therapy as the proper indication was lacking (19.4%), and (3) to adjust the dosage (8.1%). CONCLUSION: An intervention was needed in more than half of the patients on combined antithrombotic therapy. Implementation of a dedicated ASP evaluating combined antithrombotic therapy improves the use and safety of antithrombotic medication.


Subject(s)
Fibrinolytic Agents , Platelet Aggregation Inhibitors , Anticoagulants , Humans , Inappropriate Prescribing/prevention & control , Platelet Aggregation Inhibitors/therapeutic use , Prospective Studies
2.
Br J Clin Pharmacol ; 86(8): 1567-1574, 2020 08.
Article in English | MEDLINE | ID: mdl-32090369

ABSTRACT

AIMS: Even though the use of direct oral anticoagulants (DOACs) is safe based on clinical outcomes, drug safety also depends on appropriateness of drug prescription, which is challenging for DOACs since many patient factors need to be considered. The aim of this study was to assess the appropriateness of DOAC prescriptions and to identify risk factors of determinants for inappropriate DOAC prescriptions. METHODS: A retrospective study in a nonuniversity teaching hospital was performed of hospitalized patients (≥18 years) who received an initial DOAC prescription between February and August 2018. Appropriateness of prescribing was evaluated on 8 criteria by using a modified version of the medication appropriateness index. RESULTS: A total of 770 initial DOAC prescriptions of inpatients were evaluated: 267 patients (34.6%) had at least met 1 inappropriate criterion for a DOAC prescription. The most frequent inappropriate criterion was dosage (17.4%). Of the 4 DOACs, dabigatran (21.6%) and apixaban (21.2%) were mostly inappropriate dosed. In a multivariable analysis, reduced renal function (estimated glomerular filtration rate <50 mL/min; odds ratio [OR] = 2.35; P < .001), a diagnosis of atrial fibrillation (OR = 1.87; P = .004), and 'prescribed by surgeons' (OR = 1.9; P = .013) were independently associated with inappropriateness of prescribing. CONCLUSION: This study has highlighted a high degree of inappropriate prescribing of DOACs. These results underline the need for targeted interventions to improve DOAC prescribing.


Subject(s)
Atrial Fibrillation , Inappropriate Prescribing , Administration, Oral , Anticoagulants/adverse effects , Atrial Fibrillation/drug therapy , Female , Humans , Inappropriate Prescribing/prevention & control , Retrospective Studies , Risk Factors
3.
Zhongguo Dang Dai Er Ke Za Zhi ; 11(3): 217-20, 2009 Mar.
Article in Chinese | MEDLINE | ID: mdl-19292964

ABSTRACT

OBJECTIVE: To investigate the serotypes distribution and ampicillin resistance of Haemophilus influenzae isolates from children with respiratory infection in Hangzhou. METHODS: Haemophilus influenzae strains were identified with V factor and X factor tests. Serotypes were determined with the slide agglutination method. Nitrocefin test was used to detect beta-lactamase. The sensitivities of ampicillin to Haemophilus influenzae were determined with the Kirby-Bauer diffusion method and the E-test method. RESULTS: One hundred and fifty-two Haemophilus influenzae isolates, 108 from boys and 44 from girls, were identified between December 2006 and July 2007. Of the 152 isolates, 148 (97.4%) were untypable, only 4 (2.6%) were typable, including type a, type d, type e and type f (n=1 each type). Haemophilus influenzae type b and c strain was not found. Thirty-four isolates (22.4%) were beta-lactamase-positive. One hundred and thirteen isolates (74.3%) were susceptible to ampicillin, while 34 isolates (22.4%) were resistant to ampicillin. CONCLUSIONS: Untypable strains were the most common in Haemophilus influenzae isolates from children with respiratory infection in Hangzhou. The isolates of Haemophilus influenzae kept susceptibity to ampicillin to a certain extent.


Subject(s)
Ampicillin Resistance , Haemophilus influenzae/drug effects , Respiratory Tract Infections/microbiology , Adolescent , Child , Child, Preschool , Female , Haemophilus influenzae/classification , Haemophilus influenzae/enzymology , Humans , Infant , Infant, Newborn , Male , Microbial Sensitivity Tests , Serotyping , beta-Lactamases/analysis
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