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Biomedical subjects

D A Sainsbury

Publications and source records attributed to D A Sainsbury.

11 recordsLinked to original sources
PubMed2001

Anaesthesia alert: an integrated, networked, register of paediatric anaesthetic problems.

The Paediatric Register of Anaesthetic Problems (PaedRAP) is a network-based anaesthesia hazard alert system. It is integrated with pre-anaesthesia consultations and patient questionnaires. All files, both electronic and on paper, are available 24 hours a day close to the operating theatres. This ensures that pertinent information is readily available when and where it is most needed. The PaedRAP is also linked to the automated theatre booking system to print warnings on the theatre lists. This minimizes the chance that important information goes unnoticed. Documentation of the progression of the various categories of patient problems and evolving management strategies has been useful both for individuals and groups.

Anesthesia↗
PubMed1997

Evaluation of the onset time and intubation conditions of rocuronium bromide in children.

We have assessed, in children aged three to eight years, the intubating conditions after administration of rocuronium 0.6 mg/kg at 50 or 60 seconds, in groups of 15 patients. Intubating conditions were excellent in 11, good in 3 and fair in 1 patient at 50 seconds and excellent in 12 and good in 3 patients at 60 seconds. The mean onset time, for all patients, to when the first twitch of the train of four (T1), measured at the adductor pollicis, was depressed to less than 30% and 5% of control was 50 (SD 11.4) seconds and 94 (SD 31.7) seconds respectively. Depression of T1 to less than 30% of control, measured at the adductor pollicis in children, appears to indicate that intubating conditions will be clinically acceptable when using rocuronium.

Androstanols↗
PubMed1996

A macro-driven Excel template for determining the anaerobic capacity using an air-braked ergometer.

This paper describes a microcomputer system for automating the process of data collection, calculation and display of anaerobic capacity tests on an air-braked ergometer. The use of the spreadsheet Excel and associated 'Dalog' program represents an advance on current software which estimates the anaerobic capacity from work performed alone. Numerous calculations are required when air-braked, rather than friction-braked erogometers are used. Each 1 s power output collected during an all-out sprint on the ergometer is corrected against the criterion of a dynamic calibration rig and adjusted for differences in barometric pressure, ambient temperature and humidity. The Excel template features a series of macros invoked by buttons imbedded in the spreadsheet. Their selection displays various dialogue boxes which request input related to the calculation of oxygen deficit and related variables. Selecting the final macro prints a summary table and charts which include: power output, fatigue index, mechanical work performed, % aerobic contribution to work, oxygen demand, oxygen consumption and anaerobic capacity as determined by the maximal accumulated oxygen deficit.

Anaerobic Threshold↗
PubMed1993

An object-oriented approach to data display and storage: 3 years experience, 25,000 cases.

Object-oriented programming techniques were used to develop computer based data display and storage systems. These have been operating in the 8 anaesthetising areas of the Adelaide Children's Hospital for 3 years. The analogue and serial outputs from an array of patient monitors are connected to IBM compatible PC-XT computers. The information is displayed on a colour screen as wave-form and trend graphs and digital format in 'real time'. The trend data is printed simultaneously on a dot matrix printer. This data is also stored for 24 hours on 'hard' disk. The major benefit has been the provision of a single visual focus for all monitored variables. The automatic logging of data has been invaluable in the analysis of critical incidents. The systems were made possible by recent, rapid improvements in computer hardware and software. This paper traces the development of the program and demonstrates the advantages of object-oriented programming techniques.

Anesthesia Department, Hospital↗
PubMed1988

An on-line microcomputer program for the monitoring of physiological variables during rest and exercise.

This paper describes a microcomputer system for the on-line display of physiological variables such as: lung ventilation, tidal volume, respiratory frequency, oxygen consumption, heart rate, oxygen pulse, respiratory exchange ratio, grams of fat and carbohydrate metabolised, mean skin temperature, rectal temperature and mean body temperature. The program has been written in Pascal. The modular nature of this language facilitates modification of the program to make it compatible with a variety of hardware and peripherals.

Calibration↗
PubMed1985

Monitoring heart and breath sounds by telemetry.

A system for FM radiotelemetry of heart and breath sounds is described. Patients' heart and breath sounds are detected by oesophageal or precordial stethoscopes. The anaesthetist, carrying a portable radio receiver, is then free to move around theatre while listening to these sounds through headphones or an ear-piece. The FM telemetry system has also been used to assist patient monitoring in noisy environments such as ambulances.

Anesthesiology↗
PubMed1984

Artificial ventilation for cardiopulmonary resuscitation.

The ability of 100 members of the nursing staff to administer artificial ventilation was tested on a manikin. Six techniques of artificial ventilation were used. A minimum minute volume of 6 L was chosen as the criterion for adequate ventilation. Eighty-eight per cent of nurses "passed" using mouth-to-mouth ventilation, 66% "passed" using mouth-to-face-mask, 55% "passed" using the RM-1 injector system, 52% "passed" using the Mistviva injector system, while very low "pass" rates of 25% and 15% were obtained with the Air-Viva and Mapleson B circuits, respectively. It was concluded that mouth-to-mouth technique was the best form of ventilatory support provided by the nursing staff tested in this trial. In general, the use of mask systems should be restricted to highly trained staff members who have demonstrated continuing proficiency.

Australia↗