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May 3, 2023Frontiers in PharmacologyOpen Access

Internet gaming or alcohol use disorders linked to ~12% lower resting HRV versus healthy controls.

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Why the study?

Stress and resilience are involved in addictive disorders, prompting this study to identify transdiagnostic and disorder-specific markers by analyzing resting-state HRV and associations with stress and resilience levels.

Population

163 adults aged 18-35 years including 53 with IGD, 49 with AUD, and 61 HCs

Comparison

Patients with IGD and AUD vs healthy controls

Key result

Patients with internet gaming disorder or alcohol use disorder exhibited significantly lower resting-state heart rate variability (adjusted SDNNi 383.92 vs 434.29, p=0.026) compared to healthy controls.

Authors

JPJong Hu ParkSYSo Young YooHPHye Yoon Park

Discussion

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Overview

May signal shared autonomic dysregulation across addictive disorders; leaves open causal role and clinical utility pending longitudinal data.

Study Design

Type

Cross-Sectional (n=163)

Multicenter

No

Structured PICO

P
Population
163 adults aged 18-35 years (53 with internet gaming disorder [IGD], 49 with alcohol use disorder [AUD], 61 healthy controls [HCs]), medication-naïve at the time of assessment.
C
Comparator
Healthy controls (HCs)
O
Outcome
Resting-state heart rate variability (HRV) indices (including SDNNi) and associations with levels of stress (Psychosocial Wellbeing Index) and resilience (Connor-Davidson Resilience Scale)surrogate

Main Result

Absolute Event Rate: 383.92% vs 434.29%

p-value: p=0.026

Patients with internet gaming disorder and alcohol use disorder exhibit lower heart rate variability, suggesting a shared transdiagnostic marker of vulnerability to stress in addictive disorders.

Limitations

  • Selection bias may have occurred when recruiting patients and healthy controls, with significant age differences between groups and socioeconomic status not considered.
  • Lack of a common indicator of disease severity for the two different addictive disorders.
  • ECG data was obtained only in the resting state, limiting the ability to evaluate direct responses to stressful situations and the recovery process.
  • Small proportion of female participants limits the ability to analyze sex differences adequately.
  • Selection bias during recruitment (significant age differences between groups)
  • No common indicator of disease severity between the two addictive disorders
  • ECG data obtained only in the resting state, limiting evaluation of direct response to stressful situations

Cite This Study

Park et al. (2023) conducted a cross-sectional in Internet gaming disorder and alcohol use disorder (n=163). Internet gaming disorder or alcohol use disorder vs. Healthy controls was evaluated on Adjusted SDNN index (SDNNi) (p=0.026). Patients with internet gaming disorder or alcohol use disorder exhibited significantly lower resting-state heart rate variability (adjusted SDNNi 383.92 vs 434.29, p=0.026) compared to healthy controls.

synapsesocial.com/papers/6a169219798df06fa4b24e91https://doi.org/10.3389/fphar.2023.1152819
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