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A Randomized Controlled Trial of Brief Mindfulness Meditation for Women Undergoing Stereotactic Breast Biopsy.

Chelsea G Ratcliff, Sarah Prinsloo, Alejandro Chaoul, Stephanie G Zepeda, Rex Cannon, Amy Spelman, Wei T Yang, Lorenzo Cohen

Journal of the American College of Radiology : JACR May 2019 DOI: 10.1016/j.jacr.2018.09.009 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Single-blind randomized controlled trial Peer reviewed
Sample size 76
Population Women recruited before stereotactic breast biopsy
Interventions guided mindfulness-based meditation focused breathing
Duration Single session; 10-min prebiopsy activity, assessments during biopsy every 4 min and after biopsy
Topics Anxiety Meditation
Keywords EEG Breast biopsy Breast cancer Pain
Key findings Women in the guided meditation group reported a steeper reduction in anxiety than those in focused breathing or standard care (Cohen's d > 0.4 for all). No group differences in pain ratings occurred during biopsy. Meditation was associated with increased beta activity in the insula and anterior cingulate cortex compared with standard care, and a nonsignificant decrease in precuneus delta activity in meditation and breathing groups was associated with steeper anxiety reduction (r=0.51).

Abstract

Stereotactic breast biopsy (SBB) is a common, anxiety-producing procedure. Nonpharmacologic methods to manage acute anxiety are needed. In this single-blind trial, women were recruited before SBB and randomized in a 2:2:1 ratio to a single session of guided mindfulness-based meditation (GM; n = 30), focused breathing (FB; n = 30), or standard care (SC; n = 16). Anxiety and pain were assessed at baseline after a 10-min prebiopsy group-specific activity (GM, FB, or SC), every 4 min during SBB, and after biopsy. Electroencephalographic activity in the medial prefrontal cortex, insula, anterior cingulate cortex, and precuneus was collected throughout the study. Women in the GM group reported a steeper reduction in anxiety than women in the FB and SC groups (P < .001 for all, Cohen's d > 0.4 for all). There were no group differences in pain ratings during the biopsy. Women in the GM group experienced increased beta activity during biopsy in the insula (P = .006, Cohen's d = 1.4) and anterior cingulate cortex (P = .019, Cohen's d = 1.0) compared with women in the SC group, and there was a trend toward the same effect compared with women in the FB group (P < .10 for both). Women in the GM and FB groups experienced a nonsignificant decrease in delta activity in the precuneus during biopsy compared with those in the SC group (P < .40 for both, Cohen's d > 0.6 for both), which was associated with a steeper reduction in anxiety during the biopsy (r = 0.51, P < .01). Brief, guided meditation may provide effective anxiety relief during an acute medical procedure and affect neuronal activity in regions associated with attention, self-awareness, and emotion regulation.

Comparable studies

Other randomized controlled trials on meditation, most cited first.

Study Year Design Participants
Alterations in Brain and Immune Function Produced by Mindfulness Meditation Healthy employees in a work environment 2003 Randomized controlled trial n = 41
Prevention of relapse/recurrence in major depression by mindfulness-based cognitive therapy. Recovered recurrently depressed patients 2000 Randomized controlled trial n = 145
Open hearts build lives: Positive emotions, induced through loving-kindness meditation, build consequential personal resources. Working adults 2008 Randomized controlled trial n = 139
Short-term meditation training improves attention and self-regulation Undergraduate Chinese students 2007 Randomized controlled trial n = 40
Mindfulness-Based Cognitive Therapy for Depression: Replication and Exploration of Differential Relapse Prevention Effects. Recovered recurrently depressed patients 2004 Randomized controlled trial n = 73

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