Online, Peer-Supported Therapy Helps Patients Manage Anxiety Following Low-Risk Chest Pain
Chest pain stands as the second leading cause of emergency department visits throughout the United States, prompting more than 8 million medical evaluations annually. Although initial diagnostic protocols prioritize ruling out acute coronary syndrome and life-threatening conditions, roughly 80% of these emergency room patients are ultimately determined not to have a cardiac or cardiopulmonary emergency. Instead, they receive a diagnosis of low-risk chest pain, a condition defined by the presence of chest discomfort without acute coronary narrowing. Despite clear clinical reassurances and negative cardiac workups, up to 55% of these individuals suffer from anxiety, with nearly 90% of those cases remaining undiagnosed. Without proper intervention, half to 80% of these patients develop persistent chest pain symptoms and continuously re-seek medical care, driving evaluation costs up to $8 billion each year while severely diminishing their overall quality of life.
To address this widespread healthcare challenge, a recent randomized clinical trial published in JAMA Internal Medicine examined whether digital mental health tools could alleviate psychological distress in this vulnerable population. Led by investigators evaluating the Patient-Centered Treatment of Anxiety After Low-Risk Chest Pain in the Emergency Room (PACER) study, researchers sought to determine how telehealth interventions might help patients who leave emergency departments with lingering anxiety after experiencing low-risk chest pain.
Between April 2021 and July 2024, the multi-site randomized clinical trial recruited 375 adult participants across six emergency departments within Indiana University Health. Eligible individuals were expected to be discharged within 24 hours and presented with moderate to severe anxiety. Investigators utilized a permuted block design to randomly assign participants into one of three distinct care pathways: an enhanced primary care referral group receiving diagnostic results and educational materials, an online self-guided cognitive behavioral therapy program paired with peer support, or an eight-session telehealth cognitive behavioral therapy regimen led by a trained professional. Prior to randomization, all study participants completed a brief 15- to 30-minute educational session focusing on the physiological connections between psychological stress and low-risk chest pain.
Over a rigorous 12-month follow-up period, the findings revealed significant psychological benefits, particularly for those utilizing digital formats. Peer-supported online cognitive behavioral therapy generated the most substantial reduction in generalized anxiety scores compared to enhanced primary care referrals. Notably, the advantages of the peer-supported digital approach shone brightest among participants who entered the trial with severe baseline anxiety, outperforming both standard primary care referrals and therapist-delivered remote sessions for that specific subgroup. Furthermore, patients participating in either cognitive behavioral therapy arm reported much higher satisfaction levels and were roughly two to three times more likely to perceive a genuine personal improvement in their anxiety symptoms.
Beyond psychological metrics, the research team tracked secondary health indicators, noting that improvements in depression, somatic symptoms, and functional impairment occurred across all three study arms, with the majority of these positive shifts materializing within the first three months. Importantly, major adverse cardiovascular events remained rare throughout the year-long tracking period, occurring in only 1.6% of participants, and no cardiac-related fatalities were recorded. The trial authors emphasized that active patient engagement played a crucial role, as higher participation rates in the digital and therapist-led programs consistently mapped to greater symptom reductions.
Despite these encouraging outcomes, researchers noted several limitations within the trial. Approximately one-third of participants failed to complete any treatment sessions within the digital or therapist-led tracks, and missing follow-up data for certain individuals presented analytical challenges. Additionally, because the study lacked a passive usual-care control group receiving no intervention at all, some observed improvements might partially reflect natural time-based healing or statistical regression to the mean. Furthermore, because the trial was conducted within a single healthcare system, additional investigations will be necessary to establish broader generalizability and determine optimal methods for maximizing long-term patient adherence.
Source: News-Medical.net
