Perception of facial expressions in obsessive-compulsive disorder: a dimensional approach.

The study examined the perception of facial expressions of different emotional intensities in obsessive-compulsive disorder (OCD) subtypes. Results showed that the High Risk Assessment and Checking subtype was more sensitive in perceiving the emotions fear and happiness. This suggests that altered affective processing may underlie the clinical manifestation of OCD.

Formalisation for decision support in anaesthesiology.

This paper reports on research for decision support for anaesthesiologists at the University Hospital in Groningen, the Netherlands. Based on CAROLA, an existing automated operation documentation system, we designed a support environment that will assist in real-time diagnosis. The core of the work presented here consists of a knowledge base (containing anaesthesiological knowledge) and a diagnosis system. The knowledge base is specified in the logic-based formal specification language AFSL. This leads to a powerful and precise treatment of knowledge structuring and data abstraction.

Postbypass hypothermia and its relationship to the energy balance of cardiopulmonary bypass.

Using a newly developed computerized intraoperative data acquisition system, the apparent adequacy of rewarming and its relation to the energy exchange between the patient and the bypass system was investigated. Retrospective analysis of comparable patients identified two groups that had, at the end of surgery, either a nasopharyngeal temperature (NPT) of 36 degrees C or more ("warm" group, n = 19), or a NPT of 35 degrees C or less ("cold" group, n = 19). Temperatures from the nasopharynx, thenar eminence skin, and bypass pump arterial and venous lines were continually recorded and sent to the computer data base together with the pump flow rate. There were no significant differences between the groups regarding time on perfusion, time taken to cool, time of hypothermia, or the time interval from end of perfusion to the end of surgery. However, rewarming time was greater in the warm group (P less than 0.01). The cold group were subjected to more profound hypothermia (P less than 0.001), and had lower NPTs and skin temperatures at the end of bypass (P less than 0.0001 and P less than 0.01, respectively). However, the difference between NPT and thenar skin temperature in each group at either the end of bypass or the end of surgery was the same. The net energy exchange between patient and pump was significantly different (mean in warm, 130 kJ [SD = 530]; in cold, -389 kJ [SD = 427]; P less than 0.003). In conclusion, the adequacy of rewarming can be expressed in terms of the energy exchanged in the bypass system, and cannot be assessed by the nasopharynx:skin temperature gradient.