Evaluation of knowledge, attitude and practice of healthcare providers towards life-threatening drug-drug interactions in Penang General Hospital, Malaysia

Knowledge, Attitude, and Practice of Care Providers Toward Non-Pharmacological Intervention for Managing Behavioural and Psychological Symptoms in Australian Aged Care Residents with Dementia: A Cross-Sectional Survey

OBJECTIVES

This study aimed to assess the knowledge, attitude, and practice of the healthcare professionals and paid caregivers toward non-pharmacological interventions (NPIs) for managing behavioural and psychological symptoms of dementia (BPSD) in Australian residential aged care homes (RACHs).

METHODS

A cross-sectional, online survey was completed by RACH staff and physicians over the period 6 March-31 August 2023. Descriptive statistics were used to present the results.

RESULTS

Ninety-six respondents participated (41.7% aged 35-54 years, 80.2% female, 38.5% nurses). While 50-65% of the respondents were extremely familiar with 15 of NPIs, only 22% believed there was a sufficient funding for their implementation, and 6% felt there were sufficient human resources. Although 66% of the respondents viewed NPIs as more useful than medications, only 46% expected consistent positive outcomes from NPIs. The most used NPIs were redirection, behaviour management, and validation therapy.

CONCLUSIONS

The study highlights that barrier such as inadequate funding, limited human resources, skepticism about NPIs' effectiveness, unfamiliarity with certain NPIs, and unfavourable attitude toward NPIs are likely to slow NPI adoption for BPSD management.

CLINICAL IMPLICATION

To improve practice, it is essential to address these barriers through targeted education, and training, increased funding, and enhancement of the workforce.

A Survey of Medical Residents' Knowledge, Attitude, and Practice about Drug-Drug Interactions, Shiraz, Iran

Rationale, aims and objectives: Medical residents are among the most important and influential members of the medical team and the level of their knowledge regarding potential drug-drug interactions (DDIs) is a good predictor of the ability to prevent the occurrence of DDIs, as well as safe and rational prescribing in inpatient settings. This survey was designed to evaluate internal medicine and cardiology residents' knowledge and opinion toward DDIs and to determine different sources of DDI information used by this population. Method: This cross-sectional knowledge attitude practice (KAP) questionnaire study was conducted in Shiraz, Iran. A 25-question questionnaire was designed and completed by 86 internal medicine and cardiology residents. The questions were related to the participants' demographic information, their practice characteristics, the information sources used by the participants, the residents' opinion regarding DDIs, and their knowledge regarding the interaction between 8 drug pairs. Results: The results showed that when the participants wanted to learn more about DDIs, most of them used software on mobile or tablet (59.3%). Nearly three-fourths of the participants (73.82%) reported that when a patient was about to be exposed to a potential DDI, they were informed by software on mobile or tablet that the interaction may be present. On average, residents answered 44.03% ± 23.79 of drug pair questions correctly.Conclusion: Our results show insufficient practice skills, as well as relatively poor knowledge concerning the participants' answers to questions. It seems that further practical training and education are required to enable prescribers to prevent potential DDIs.

Identifying and Characterizing Serious Adverse Drug Reactions Associated With Drug-Drug Interactions in a Spontaneous Reporting Database

Background: Drug-drug interactions (DDIs) are an important cause of adverse drug reactions (ADRs). In literature most of studies focus only on potential DDIs, while detailed data on serious ADRs associated with DDIs are limited. Our aim is to identify and characterize serious ADRs caused by DDIs using a spontaneous reporting database.

Methods: All serious ADR reports, not related to vaccines and with a “definite”, “probable” or “possible” causality assessment, inserted into the National Pharmacovigilance database from Veneto Region (January 1, 2015 to May 31, 2020) were analyzed. A list of drug pairs was created by selecting the reports containing at least two suspected or concomitant drugs. We verified which drug pairs potentially interacted according to the online version of DRUGDEX^® system. For each potential DDI we controlled whether the ADR description in the report corresponded to the interaction effect as described in Micromedex. A detailed characterization of all serious reports containing an occurring DDI was performed.

Results: In the study period a total of 31,604 reports of suspected ADRs from the Veneto Region were identified, of which 2,195 serious reports (6.9% of all ADR reports) containing at least two suspected or concomitant drugs were analyzed. We identified 1,208 ADR reports with at least one potential DDI (55.0% of 2,195) and 381 reports (17.4% of 2,195 reports) with an occurring ADR associated with a DDI. The median age of patients and the number of contraindicated or major DDIs were significantly higher in reports with an occurring DDI. Warfarin was the most frequently reported interacting drug and the most common ADRs were gastrointestinal or cerebral hemorrhagic events. The proton pump inhibitors/warfarin, followed by platelet aggregation inhibitors/warfarin were the drug-drug combinations most frequently involved in ADRs caused by DDIs. The highest proportion of fatal reports was observed with platelet aggregation inhibitors/warfarin and antidepressants/warfarin.

Conclusion: Our findings showed that about one-third of patients exposed to a potential DDI actually experienced a serious ADR. Furthermore, our study confirms that a spontaneous reporting database could be a valuable resource for identifying and characterizing ADRs caused by DDIs and the drugs leading to serious ADRs and deaths.