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Biomedical subjects

H Day

Publications and source records attributed to H Day.

17 recordsLinked to original sources
PubMed1999

Patient-controlled analgesia: epidural fentanyl and i.v. morphine compared after caesarean section.

We have compared patient-controlled epidural fentanyl (PCEF) and patient-controlled i.v. morphine (PCIM) after Caesarean section in 84 patients, in a randomized, double-blind study. All patients had an epidural and an i.v. patient-controlled analgesia (PCA) device, one of which delivered normal saline. Group PCEF received epidural fentanyl 20 micrograms with a 10-min lockout. Group PCIM received i.v. morphine 1 mg with a 5-min lockout. PCA use was lower for PCEF patients (P = 0.0007). The highest pain score recorded at rest for PCEF patients was median 20 (interquartile range 10-33) mm compared with 32 (14-52) mm for PCIM patients (P = 0.02). The highest pain score recorded on coughing was 31 (21-41) mm with PCEF compared with 56 (30-71) mm for PCIM (P = 0.001). There was less nausea (P = 0.02) and drowsiness (P = 0.0003) with PCEF. There was no difference in the overall incidence and severity of pruritus (P = 0.77). However, pruritus started earlier with PCEF.

Adult↗
PubMed1998

A tale of two walls.

Explore the source record for details and available documents.

Eligibility Determination↗
PubMed1986

Subzero-temperature preservation of reactive fluids in the undercooled state. II. The effect on the oxidation of ascorbic acid of freeze concentration and undercooling.

The rate of oxidation of ascorbic acid has been measured in both frozen and undercooled solutions. A new interpretation is advanced for changes in the rate of ascorbic acid oxidation in freeze-concentrated solutions. The results obtained with undercooled solutions indicate a rate reduction in line with that predicted by the Arrhenius equation. It is also demonstrated that undercoohng provides a method for greatly extending the shelf life of reactive fluids.

Journal Article↗
PubMed1986

Subzero-temperature preservation of reactive fluids in the undercooled state. I. The reduction of potassium ferricyanide by potassium cyanide.

Many reactions show enhanced rates at subzero temperatures due to freeze concentration. The reduction of potassium ferricyanide by potassium cyanide has been studied at subzero temperatures in both the undercooled and the frozen state. The pseudo-first-order rate constants calculated differ greatly from those in previous reports. A high degree of freeze concentration and supersaturation in frozen bulk solutions occurs. It has been clearly demonstrated that undercooled preservation provides a useful method for the long-term storage of reactive mixtures.

Journal Article↗
PubMed1978

The impact of the Health Professions Educational Assistance Act on state mental health systems.

One effect of the Health Professions Educational Assistance Act of 1976 is to severely limit the number of foreign medical graduates entering the United States. To examine the impact of the law in Michigan, the authors gathered data on the number of psychiatrists practicing in the state and projected future manpower needs. They conclude that it is unlikely that, given other provisions in the law, American medical graduates can numerically replace foreign medical graduates, and that alternative manpower resources will have to be developed. State mental health systems must form new relationships with universities and the private psychiatric sector, and new methods of training personnel and sharing resources must be developed. The authors emphasize the importance of giving state mental health systems sufficient time and resources to develop effective manpower plans.

Education, Medical↗
PubMedDate not supplied

Development of a scale to measure the psychosocial impact of assistive devices: lessons learned and the road ahead.

PURPOSE: In this paper the history of the development and validation of the PIADS is reviewed. Assistive devices (ADs) are extremely prevalent forms of health care intervention for persons who have a disability. There is a consensus that the AD field needs a reliable and valid measure of how users perceive the impact of ADs on their quality of life (QoL) and sense of well-being. The Psychosocial Impact of Assistive Devices Scale (PIADS) is a 26 item self-rating scale designed to fill this measurement gap. The challenges that we encountered are described in attempting to adequately conceptualize QOL impact, and operationalize it in a measure suitable for use with virtually all forms of AD. Current efforts to extend the validation of the PIADS are summarized. CONCLUSIONS: The study concludes by suggesting directions for future research and development of the scale. They include a richer examination of its conceptual relationships to other health care and rehabilitation outcome measures, and further investigation of its clinical utility. The PIADS is a reliable and valid tool that appears to have very significant power to predict AD abandonment and retention. It can and should be used both deductively and inductively to build, discover and test theory about the psychosocial impact of assistive technology.

Health Status Indicators↗