The new Swedish Post-Concussion Symptoms questionnaire: a measure of symptoms after mild traumatic brain injury and its concurrent validity and inter-rater reliability.

Objective: To study the concurrent validity and the inter-rater reliability of the Post-Concussion Symptoms Questionnaire.

Design: The approach was to study the concurrent validity of the Post-Concussion Symptoms Questionnaire when used as an interview questionnaire compared with a self-report questionnaire administered by the patients. The inter-rater reliability was also studied when 2 different raters administered the Post-Concussion Symptoms Questionnaire interview.

[Early outcome assessment following heart arrest is currently impossible. Clinical parameters are easy to use but afflicted with uncertainty].

A critical review of a meta-analysis published in JAMA of early clinical neurological signs to detect "good" or "bad" outcome after cardiac arrest is presented. The review focuses on weaknesses of Glasgow Coma Scale, the Glasgow-Pittsburgh Cerebral Performance Categories (CPC) and on individual differences in factors after arrest for study inclusion. It is suggested that the clinical assessments should be complemented with the assessment of neurochemical markers for brain damage.

Impaired wakefulness is associated with reduced anterior cingulate CBF in patients with normal pressure hydrocephalus.

Objective: To evaluate if impaired wakefulness (IW) in normal pressure hydrocephalus (NPH) is associated with reduced blood flow in regions associated with the brain arousal system.

Method: NPH (n = 28) patients were studied before and after surgery. Wakefulness was assessed using a new developed scale.

Diagnostic classification of organic psychiatric disorders after aneurysmal subarachnoid hemorrhage: a comparison between ICD-10, DSM-IV and the Lindqvist & Malmgren classification system.

Objective: There is no universally accepted consensus for organic psychiatric disorders (OPDs) between the two major classifications, ICD-10 and DSM-IV. The aim was to compare the coverage of these systems with the Lindqvist & Malmgren (LM) classification system for organic psychiatry.

Method: Organic psychiatric disorders were diagnosed according to ICD-10, DSM-IV, and the LM system in 119 patients 12 months after surgery as a result of aneurysmal subarachnoid hemorrhage.

Nonorganic and Organic Psychiatric Disorders in Patients after Epilepsy Surgery.

This study aimed at describing preoperative psychiatric morbidity in a consecutive series of 70 epilepsy patients who were surgically treated and to analyze postoperative psychiatric morbidity and predisposing factors. Nonorganic (DSM-III-R) and organic (Lindqvist-Malmgren diagnostic system) psychiatric morbidity was prospectively assessed preoperatively and during the first two postoperative years. At presurgical evaluation 44.