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Biomedical subjects

G D Parbrook

Publications and source records attributed to G D Parbrook.

11 recordsLinked to original sources
PubMed1979

Anaesthetic pollution in the dental out-patient surgery.

Five factors influencing pollution in the dental surgery are considered. Despite leakage from round the mask and from the mouth, scavenging can remove the majority of expired anaesthetic. The effectiveness of scavenging can usefully be monitored with a Wright respirometer. Spillage of anaesthetic vapour at induction and at the end of anaesthesia must be avoided. In addition to scavenging, pollution levels are minimised if a Boyle's type machine is used and excessive fresh gas flow avoided. Room ventilation, e.g. extract fans in windows, is vital in reducing pollution levels in the surgery. Room size and non-uniformity of ventilation must also be considered.

Air Pollution↗
PubMed1977

The interrelation of personality and postoperative factors.

A composite statistical analysis was made of the results from four trials comprising patients undergoing upper abdominal operations. It revealed a marked correlation between the neuroticism score as measured by a personality inventory before operation and the percentage vital capacity impairment found after operation. Neuroticism correlated also with pain as measured by a visual analogue scale. The vital capacity impairment and subjective pain readings were interrelated and both neuroticism and vital capacity impairment were related to the chest complication rate. Personality assessment before operation can identify one group of patients who will have marked pain and limitation of vital capacity after operation.

Abdomen↗
PubMed1976

Influence of anaesthetic technique on postoperative pain. A comparison of anaesthetic supplementation with halothane and with phenoperidine.

Fifty male patients undergoing elective surgery for duodenal ulcer received either phenoperidine or halothane 0.5% for the supplementation of anaesthesia. The patients in the phenoperidine group required the first postoperative dose of analgesic later and had lower pain scores in the first 2 h after operation. In the course of the 1st, 2nd and 3rd days, the two groups of patients showed a similar pattern after operation with regard to pain scores, vital capacity impairment and oxygen tension measurements.

Adolescent↗
PubMed1976

Stanislav Klikovich (1853-1910). Pioneer of nitrous oxide and oxygen analgesia.

The career and work of Stanislav Klikovich (1853-1910) has been reviewed. He was born in Russian occupied Poland and was a pioneer of the use of analgesic concentrations of nitrous oxide in oxygen for many painful conditions including childbirth. He based his clinical work on sound research and animal and human experimentation and recognised that the analgesic state was distinct from anaesthesia.

Anesthesia, Inhalation↗
PubMed1976

Audiotape slide programmes: equipment and production.

The number of medical audiotape-slide programmes available has been rapidly increasing. A typical programme comprises a cassette tape and a set of slides. A questionnaire or workbook may also be provided, e.g. in the programmes which may be borrowed or purchased from the Medical Recording Service Foundation. For playback a cassette recorder and projector will suffice or, for economy, a stacking viewer may be used. Automated apparatus is not essential and if used should be of the correct 'USPEC 2' standard. To produce audiotape-slide programmes is more exacting than may be anticipated, and details of the procedure are provided. Programmes should be assessed and upgraded after their production.

Audiovisual Aids↗
PubMed1975

An expired gas collection and disposal system.

An expired gas collection and disposal system based on an independent suction pump is described. The halothane concentration in the atmosphere was measured, with and without the system. The increase of halothane concentration was limited to 1 p.p.m. above the theatre basal value with the system in use, and 5 p.p.m. when no venting was used.

Air Pollution↗
PubMedDate not supplied

Audiotape-slide teaching. An assessment of group and individual presentation.

A series of fourteen audiotape-slide presentaiions on clinical physics and measurement were produced for self instruction by junior anaesthetists. A comparison of group and individual teaching carried out on fifteen trainees indicated no difference between the effectiveness of the two methods. In both cases almost 90% of the lecture points could be immediately recalled. Most students however preferred individual tuition. The assessment also allowed a comparison of individual lectures so that upgrading, modifying and rewriting of the appropriate lectures or parts of lectures could be carried out. The tapeslide technique and the format used was found to be very acceptable to the anaesthetists taking part. The flexibility of audiotape-slide lectures as a teaching medium is discussed.

Anesthesiology↗
PubMedDate not supplied

Audiotape slide programmes: comparison of synchronised and manual use.

No difference in teaching effectiveness was found between the use of a series of audiotape slide programmes on clinical physics and measurement with synchronised and manual slide change. Over 93% of the lecture points could be immediately recalled in both instances and significantly different learning abilities among the students were detected. The trial also identified programmes with lower answer scores for possible upgrading. Comparison with a previous trial demonstrated the value of the revision and upgrading of materials. Anaesthetists found the teaching by the tape slide technique, in the format used, helpful and very acceptable. The advantages and disadvantages of the use of audiotape slide programmes with synchronised and manual slide change apparatus have been discussed.

Anesthesiology↗