Low prevalence of SARS-CoV-2 among patients presenting at a Parisian psychiatry University Hospital Group.

We examine the prevalence of SARS-CoV-2 infections among patients admitted to a Parisian psychiatric University Hospital Group (GHU). A total of 548 patients were admitted to the GHU..

[Therapeutic drug monitoring of olanzapine].

Olanzapine, atypical antipsychotic, is used to treat schizophrenia and bipolar disorder. Its therapeutic drug monitoring (TDM) is quite commonly done. Olanzapine is well absorbed orally (bioavailability: 85 %), with peak plasma occurring between 4 and 6hours after oral administration.

Is smoking linked to positive symptoms in acutely ill psychiatric patients?

Background: The self-medication hypothesis is commonly put forward to explain the high prevalence of smoking in psychiatric patients. However, studies supporting the self-medication hypothesis have most often been carried out on chronic patients stabilized by antipsychotics.

Aim: Given that antipsychotics tend to erase psychiatric symptoms, the present study was undertaken on acutely ill patients usually receiving no medications, or on whom medications are ineffective.

Comparison of self-reports and biological measures for alcohol, tobacco, and illicit drugs consumption in psychiatric inpatients.

Background: Asking psychiatric in-patients about their drug consumption is unlikely to yield reliable results, particularly where alcohol and illicit drug use is involved. The main aim of this study was to compare spontaneous self-reports of drug use in hospitalized psychiatric patients to biological measures of same. A secondary aim was to determine which personal factors were associated with the use of tobacco, alcohol, and illicit drugs as indicated by these biological measures.

Ultrasonographic assessment of topographic anatomy in volunteers suggests a modification of the infraclavicular vertical brachial plexus block.

Background: The infraclavicular vertical brachial plexus block, first described by Kilka and coworkers, offers a more proximal spread of anaesthesia for the upper extremity than the classic axillary approach. In this technique, the puncture site is defined as lying at the exact centre of an infraclavicular line (k) between the jugular fossa and the ventral process of the acromion. Our study was designed to determine whether the point so defined (P) corresponds with the optimal puncture site determined sonographically (S) and to develop an improved prediction model.