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Biomedical subjects

S Mulvey

Publications and source records attributed to S Mulvey.

7 recordsLinked to original sources
PubMed2001

Levels of knowledge of Down syndrome and Down syndrome testing in Australian women.

At their first hospital antenatal visit, 209 women were interviewed to explore their level of knowledge of Down syndrome and the available prenatal tests. Overall, the women had limited knowledge. Non-Caucasian women had less knowledge of Down syndrome, available prenatal tests and the association of Down syndrome with advanced maternal age than Caucasian women. Women with a history of a previous pregnancy and women over 35 years of age were not more aware of Down syndrome or the available tests than other women. These findings have significant implications for antenatal education and the implementation of screening programs for Down syndrome.

Adult↗
PubMed2001

The management of extremely premature infants and the perceptions of viability and parental counselling practices of Australian obstetricians.

The attitudes of Australian obstetricians to the resuscitation of extremely premature infants are reported. A structured questionnaire including questions regarding antenatal parent counselling, resuscitation practices, survival rates and personal attitudes about life support was distributed to obstetricians working in Australian hospitals with a Level 3 nursery Eighty-nine (48% response rate) replies were received from 12 units located in seven major cities. Obstetricians are more likely to discuss resuscitation with prospective parents with increasing gestation with a major shift occurring at 23-24 weeks' gestation. They strive for consensus with parents regarding resuscitation options and they act upon the opinion of both the prospective parents and their paediatric colleagues. Threat of litigation rarely influences the decision to limit resuscitation of an extremely preterm infant. Obstetricians may underestimate the prognosis for extremely preterm infants. The data presented offer useful insights into current attitudes and practice of tertiary hospital obstetricians.

Adult↗
PubMed2000

Women's knowledge of and attitudes to first and second trimester screening for Down's syndrome.

One hundred women were interviewed at their first hospital antenatal visit to assess their knowledge of, and attitudes to, first versus second trimester screening for Down's syndrome. Overall, the women had limited knowledge of Down's syndrome, and the prenatal screening and diagnostic tests that are available. However, when informed, the majority of women expressed a clear preference for first trimester screening tests for Down's syndrome, regardless of the rate of miscarriage of Down's syndrome pregnancies between 10 and 15 weeks of gestation. These findings have implications for the planning of prenatal Down's syndrome screening programmes.

Abortion, Spontaneous↗
PubMed1997

Control of spatial orientation and lifetime of scroll rings in excitable media.

Excitable media, which range from autocatalytic chemical systems to biological cells and tissues, can maintain organized structures in the form of rotating spiral waves of excitation. The dynamics of spiral waves in two-dimensional systems have been shown to be susceptible to control by external fields (such as electric, thermal and optical). In three dimensions, the analogues of spiral waves are scroll waves. Here we show that an external field--a temperature gradient--can be used to control a particular class of scroll waves called scroll rings. The gradient allows scroll rings to be precisely oriented in space, and their spontaneous shrinkage to be accelerated, decelerated or even reversed (so that the ring expands). The temperature gradient also influences the lifetimes of the scroll rings. We suggest that these dynamics are likely to be generic to other types of field gradients and other excitable media.

Chemical Phenomena↗