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Biomedical subjects

T Hannan

Publications and source records attributed to T Hannan.

10 recordsLinked to original sources
PubMed1993

Maternal views of preterm infants' responsiveness to social interaction.

Mothers of 47 very low birth weight ( < 1,500 gram) infants were interviewed concerning their feelings and views about interactions with them. Interviews were conducted within the first ten days and again three to five weeks after birth. Over the first month of the baby's hospitalization, mothers significantly increased their pleasure in interacting, knowledge of infant cues, and perception that their infants were responding. The most frequently mentioned behaviors were maternal talking and touching and infant eye opening and body activity. Many mothers appeared to be utilizing their infants' behaviors as a guide for their own behaviors and reported that their infants' behaviors had specific meanings. However, an equal number of mothers were not ascribing meaning to their infants' behaviors and did not appear to be using behavioral cues. These findings have implications for interventions by neonatal nurses.

Adult↗
PubMed1991

Medical informatics--an Australian perspective.

Computers, like the X-ray and stethoscope can be seen as clinical tools, that provide physicians with improved expertise in solving patient management problems. As tools they enable us to extend our clinical information base, and they also provide facilities that improve the delivery of the health care we provide. Automation (computerisation) in the health domain will cause the computer to become a more integral part of health care management and delivery before the start of the next century. To understand how the computer assists those who deliver and manage health care, it is important to be aware of its functional capabilities and how we can use them in medical practice. The rapid technological advances in computers over the last two decades has had both beneficial and counterproductive effects on the implementation of effective computer applications in the delivery of health care. For example, in the 1990s the computer hobbyist is able to make an investment of less than $10,000 on computer hardware that will match or exceed the technological capacities of machines of the 1960s. These rapid technological advances, which have produced a quantum leap in our ability to store and process information, have tended to make us overlook the need for effective computer programmes which will meet the needs of patient care. As the 1990s begin, those delivering health care (eg, physicians, nurses, pharmacists, administrators ...) need to become more involved in directing the effective implementation of computer applications that will provide the tools for improved information management, knowledge processing, and ultimately better patient care.

Australia↗
PubMed1991

5'-Alkyl-substituted analogs of 5'-methylthioadenosine as trypanocides.

5'-Deoxy-5'-(methylthio)adenosine (MTA) is a by-product of polyamine metabolism and is phosphoryolytically cleaved to adenine and 5-deoxy-5-(methylthio)ribose-1-phosphate (MTR-1-P) by MTA phosphorylase. In eukaryotes, adenine is subsequently salvaged and converted to nucleotides, while MTR-1-P is converted to methionine. We examined 5'-deoxy-5'-substituted analogs of MTA for trypanocidal activity in vitro and in vivo. 5'-Deoxy-5'-(hydroxyethyl)thioadenosine (HETA) and its 5'-bromo,5'-chloro and 5'-fluoro derivatives were cleaved by extracts of the African trypanosome Trypanosoma brucei brucei (Km for MTA, 11.5 microM; Km for HETA, 13.2 microM) in a phosphate-dependent reaction. HETA and the three halo analogs were 50% inhibitory to growth at 0.5 to 5.0 microM in vitro. Inhibition of growth was reversible by exogenous methionine and 2-keto-4-methylthiobutyric acid, an intermediate in methionine synthesis from MTR-1-P. HETA was selected for further study in vivo. When administered by miniosmotic pump (25 to 150 mg/kg/day for 7 days) to mice infected with T. brucei brucei, HETA effected 70 to 90% cure rates. Results of this study indicate that these analogs of MTA are converted to trypanocidal MTR-1-P analogs and that this approach deserves further consideration in the development of novel chemotherapy of trypanosomiasis.

Adenosine↗
PubMed1991

Quality assurance.

Modern health care is changing--we have more chronic disease, increasing demands for documentation from government and legal bodies, and greater emphasis on disease screening and prevention. Quality assurance is important in developing health care services to meet these changing needs because it provides standards by which we can measure the activities involved in the delivery of health care, and quality assurance programmes are more likely to ensure that the predefined standards of health care are being met. This paper provides: (i) an acceptable definition of quality assurance (QA); (ii) an explanation of why we need it; (iii) evidence that the medical decision-making process is failing under the modern technological advances; and (iv) guidelines for meeting future health care standards by using the modern technological tools of computers and computer software to support the beleaguered clinical decision-making process.

Australia↗
PubMedDate not supplied

International transfer of the Johns Hopkins Oncology Center clinical information system.

The transfer of the Johns Hopkins Oncology Center clinical information system to an Australian tertiary care center began in 1982. The converted system was installed for use by the hospital administration in 1991, and it is now used extensively in management and patient care. This article discusses the original software, the applications implemented, and the problems encountered and overcome, as well as the role of the hospital administration in the development and subsequent freezing of the system.

Baltimore↗