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Left rostrolateral prefrontal cortex lesions reduce suicidal ideation in penetrating traumatic brain injury.

ABSTRACT:

Objectives

The objective of this study is to evaluate the relationship between suicidal ideation (SI), structural brain damage, and cognitive deficits in patients with penetrating traumatic brain injury (pTBI).

Methods

Vietnam War veterans (n = 142) with pTBI to the prefrontal cortex (PFC) underwent combination of neuropsychological and psychiatric examinations and non-contrast CT brain scan. Patients were divided into SI positive (SI+) and SI negative (SI-) groups according to the SI item of the Beck Depression Inventory.

Results

Lesions to the left rostrolateral PFC (rlPFC) were associated with a lower risk of SI independent of depression and global functioning. Left rlPFC lesion also reduced abstract reasoning skills, which mediated the lesion effects on suicide ideation.

Conclusions

The left rlPFC plays a crucial role in SI independently of depression and global functioning.

SUBMITTER: Pardini M

PROVIDER: S-EPMC6786933 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Left rostrolateral prefrontal cortex lesions reduce suicidal ideation in penetrating traumatic brain injury.

Pardini Matteo M Grafman Jordan J Raymont Vanessa V Amore Mario M Serafini Gianluca G Koenigs Michael M Krueger Frank F

CNS spectrums 20200201 1

<h4>Objectives</h4>The objective of this study is to evaluate the relationship between suicidal ideation (SI), structural brain damage, and cognitive deficits in patients with penetrating traumatic brain injury (pTBI).<h4>Methods</h4>Vietnam War veterans (n = 142) with pTBI to the prefrontal cortex (PFC) underwent combination of neuropsychological and psychiatric examinations and non-contrast CT brain scan. Patients were divided into SI positive (SI+) and SI negative (SI-) groups according to th ...[more]

PMID: 30968811

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