Toxic Myocarditis Caused by Acetaminophen in a Multidrug Overdose

Overdose and off-label psychotropic prescribing in patients with borderline personality disorder: A retrospective series

OBJECTIVE

Borderline personality disorder (BPD) is common and poses many clinical challenges. Despite limited evidence of effectiveness, psychotropic medications are often prescribed. We aimed to characterise overdose presentations in patients with BPD.

METHOD

This is a retrospective observational series of patients with BPD presenting to a tertiary hospital following an overdose from January 2019 to December 2020. Medical records were reviewed to determine baseline characteristics, overdose details, clinical features, treatment, and disposition.

RESULTS

There were 608 presentations in 370 people (76% female), median age 28 years (range 16-75 years). The majority (331[89%]) of patients were prescribed at least one psychotropic medication, with 129 (35%) being prescribed three or more different psychotropic agents. Of the total prescribed psychotropics, 520/1459 (36%) were for off-label indications. The majority of agents (860/1487[58%]) taken in overdose were prescribed. The commonest drug classes taken in overdose were benzodiazepines (241[16%]) and antipsychotics (229[15%]). Severe toxicity occurred in 99 (16%) cases with either coma (GCS<9) or hypotension (systolic BP <90 mmHg). The commonest agent associated with severe toxicity was quetiapine 39/99 (39%).

CONCLUSIONS

Psychotropic polypharmacy is common in BPD, often with off-label indications. Prescribed medications are commonly taken in overdose. Quetiapine is over-represented both in off-label prescribing and associated harm.

Diagnosis, Evaluation, and Treatment of Myocarditis in Children

Myocarditis in the pediatric population can be a challenging diagnosis to make and often requires utilization of multiple diagnostic modalities. The cause is often due to a viral infection with activation of the innate and acquired immune response with either recovery or disease progression. Laboratory testing often includes inflammatory markers, cardiac troponin levels, and natriuretic peptides. Noninvasive testing should include electrocardiogram, echocardiogram, and possibly an MRI. Treatment of myocarditis remains controversial with most providers using immune modulators with intravenous immunoglobulin and corticosteroids.

Heart Infection Prognosis Analysis by Two-dimensional Spot Tracking Imaging

Cardiovascular death is one of the leading causes worldwide; an accurate identification followed by diagnosing the cardiovascular disease increases the chance of a better recovery. Among different demonstrated strategies, imaging on cardiac infections yields a visible result and highly reliable compared to other analytical methods. Two-dimensional spot tracking imaging is the emerging new technology that has been used to study the function and structure of the heart and test the deformation and movement of the myocardium. Particularly, it helps to capture the images of each segment in different directions of myocardial strain values, such as valves of radial strain, longitudinal strain, and circumferential strain. In this overview, we discussed the imaging of infections in the heart by using the two-dimensional spot tracking.

Acetaminophen poisoning-induced heart injury: a case-based review

PURPOSE

Acetaminophen (Paracetamol, APAP) poisoning is frequently implicated in self-harm. Cases of acetaminophen-associated cardiotoxicity are rare in relation to the number of patients with acetaminophen poisoning. A review of acetaminophen cardiotoxicity in 1996 concluded that there was no decisive evidence demonstrating that acetaminophen overdose has a cardiotoxic effect. This review study aimed to determine whether acetaminophen could induce heart injury.

METHODS

We searched for keywords of acetaminophen, paracetamol, cardiotoxicity, heart injury, heart damage, myocarditis, pericarditis, myocardial infarction, and myocardial ischemia in Web of Science, PubMed, Scopus, Embase, Google Scholar, and Persian databases. The search included articles published from January 1950 to October 2018 with no language restrictions.

RESULTS

The search yielded 64 citations in English; 36 of the articles were excluded as they were not relevant; 5 articles were excluded since they were duplicates, leaving 23 articles. Full-text articles of the 23 citations were obtained and reviewed. Myocardial infarction, heart dysfunction and failure, cardiac arrhythmias, pericarditis, heart cell necrosis, and sudden cardiac death were reported in acetaminophen overdose.

CONCLUSIONS

Ddysrhythmias, heart failure, and various other cardiac effects could occur following acetaminophen induced hepatic failure. However, the evidence for direct injury on cardiac tissue is weak. Graphical abstract Potential mechanisms for cardiotoxicity of acetaminophen.