Ongoing Opioid Treatment and Symptoms of Myocardial Infarction in Calls to the Emergency Medical Services.

Background: Ongoing opioid treatment can potentially modify symptoms of myocardial infarction (MI) and cause a lack of recognition and treatment delay.

Objectives: The purpose of this study was to examine MI symptoms and the time to hospitalization for patients in ongoing opioid treatment compared to patients without ongoing opioid treatment.

Methods: We evaluated calls to the Copenhagen Emergency Medical Services in Denmark from 2014 to 2018.

Association between long-term statin use and cataract surgery: a nationwide study on 505 105 cataract surgery patients.

Aims: To assess the association between statin use and cataract surgery according to different statin treatment durations in patients with different cardiovascular risk profiles.

Methods And Results: We performed a nested case-control study using Danish registries, covering the period from 1 January 1996 to 31 December 2020. We defined cases as surgically treated cataract patients, matched in a 1:1 ratio by sex and age with controls not undergoing cataract surgery.

Severe mental illness is associated with increased mortality and severe course of COVID-19.

Objective: Psychiatric disorders have been associated with unfavourable outcome following respiratory infections. Whether this also applies to coronavirus disease 2019 (COVID-19) has been scarcely investigated.

Methods: Using the Danish administrative databases, we identified all patients with a positive real-time reverse transcription-polymerase chain reaction test for COVID-19 in Denmark up to and including 2 January 2021.