Background: Post-traumatic stress disorder (PTSD) is a common and debilitating illness that accompanies many neurological disorders, including stroke.
Objective: The aim of this systematic review was to identify and critically appraise all published studies that have reported the frequency, severity, and time course of PTSD after stroke, the factors associated with its development, and its impact on patients' lives.
Material and methods: The PubMed EMBASE, PsycINFO, and Ovid Nursing databases were searched for studies published in English that had recruited at least 10 patients (>18 years old) after stroke and who were also diagnosed with PTSD.
Results: Twenty studies covering a total of 1785 patients met the study inclusion criteria. The frequency of PTSD ranged from 3% to 31%, with a weighted proportion of 16.5%. PTSD runs a chronic course. PTSD after stroke was associated with premorbid neuroticism, negative affect, and maladaptive coping styles. Comorbid depression and anxiety also increased the risk of PTSD. Psychological factors such as negative appraisal and perceived high risk of recurrence and distress were associated with PTSD. Good social support reduced the risk of PTSD. PTSD reduced patients' quality of life, physical functioning, and medication compliance.
Conclusions: PTSD is common after stroke. Further research is needed to clarify its time course and identify the neurochemical factors and brain circuits associated with the development of post-stroke PTSD. Randomized controlled treatment trials targeting PTSD in stroke are warranted.
Keywords: Meta-analysis; PTSD; stroke; systematic review.