Abstract
The connection between stimulants and pulmonary arterial hypertension (PAH) was first made apparent in the 1960s during an outbreak associated with anorexigen (amphetamine-like appetite suppressants) use. Since then, a total of 16 drugs and toxins have been linked to PAH (ie, drug and toxin-associated PAH [DT-APAH]), including illicit stimulants like methamphetamine. Recently, basic science research and novel genomic studies have started to shed light on possible pathologic and genetic mechanisms implicated in disease development, namely loss of function variants in genes involved in drug detoxification. This review will discuss the history and current state of knowledge regarding stimulants and their association with PAH. It will also discuss clinical management of patients with DT-APAH. Lastly, it will highlight the importance of ongoing research efforts to identify susceptibility factors implicated in DT-APAH and the need for increased pharmacovigilance and awareness to identify new drugs that may be risk factors for PAH. Ultimately, this may be our best strategy to improve clinical outcomes and prevent deadly future outbreaks of DT-APAH.
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