From student to midwife: the experiences of newly graduated midwives working in an innovative model of midwifery care

In 2001, a new model of midwifery care was established in the Birth Centre at St George Hospital, a metropolitan hospital in NSW. The new model was designed to encompass the principles and recommendations from numerous government reports and research. The model also build on the previous successful implementation of a team midwifery program (Homer et al 2001b; Homer et al 2001a). Four newly graduated midwives, together with four more experienced midwives were employed to work in the models of midwifery care. This small study evaluates the first 10 months' using qualitative and quantitative data. As this is a small study, no firm conclusion can be reached. The results of the evaluation however demonstrated that with appropriate support and mentoring, newly graduated midwives can work in an innovative model of midwifery care within a birth centre environment.     

Does flying after myringoplasty affect graft take rates?

Flying at altitude soon after myringoplasty may theoretically have an adverse effect on graft take rates owing to variation in external air pressure, together with suboptimal Eustachian tube function, causing graft displacement. We wished to assess the effect of flying after myringoplasty by comparing success rates of patients flying within a week postoperatively (n = 37) with a control group (n = 37) by carrying out a retrospective, controlled cohort study. The primary outcome measure was graft success, defined as a 100% closure at first outpatient follow-up (2.5 months). Our results showed that there was no difference in early graft success rates between the flying group (32/37: 86%) and non-flying group (29/37: 78%)(P = 0.32; 95% CI of difference: -9% to 27%). In conclusion, flying at altitude in a pressurized environment within a week of myringoplasty does not adversely affect early operative success.     

Cost-effectiveness of adjunctive hyperbaric oxygen in the treatment of diabetic ulcers

OBJECTIVES: This study estimates the cost-effectiveness (CE) of the adjunctive use of hyperbaric oxygen (HBO2) therapy in the treatment of diabetic ulcers based on the payer's and societal perspectives. METHODS: The study population was a hypothetical cohort of 1,000 patients sixty years of age with severe diabetic foot ulcers. A decision tree model was constructed to estimate the CE of HBO2 therapy in the treatment of diabetic ulcers at years 1, 5, and 12. Scenario and one-way sensitivity analyses were also undertaken to identify parameters that may significantly influence the estimates. RESULTS: The CE model estimated that the incremental cost per additional quality-adjusted life year (QALY) gained at years 1, 5, and 12, was dollar 27,310, dollar 5,166, and dollar 2,255, respectively. CONCLUSIONS: The study results indicate that HBO2 therapy in the treatment of diabetic ulcers is cost-effective, particularly based on a long-term perspective. However, the results are limited by the clinical studies that provide the basis of the CE estimation.     

Gray matter N-acetyl aspartate deficits in secondary progressive but not relapsing-remitting multiple sclerosis

BACKGROUND AND PURPOSE: Spectroscopic examination of multiple sclerosis (MS) patients has revealed abnormally low N-acetyl-aspartate (NAA) signal intensity, even in brain tissue that appears normal on high-resolution structural MR images but has yielded inconclusive evidence to distinguish the well-documented clinical differences between MS subtypes. This study used proton MR spectroscopic imaging (MRSI) and high-resolution MR imaging to characterize metabolite profiles in normal-appearing brain tissue of relapsing-remitting multiple sclerosis (RRMS) and secondary progressive (SP) MS. METHODS: Volumetric spiral MRSI was used together with high-resolution MR imaging to derive absolute measures of metabolite concentrations separately in normal-appearing supratentorial cerebral gray matter and white matter in five RRMS patients, five SPMS patients, and nine age-matched controls. Structural MR images were segmented into compartments of gray matter, white matter, CSF, and lesions, and metabolite signals per unit of tissue volume were calculated for gray matter and white matter separately. RESULTS: Only the SPMS group had significantly lower NAA concentrations in normal-appearing gray matter compared with concentrations in controls. NAA in normal-appearing white matter was equally reduced in RRMS and SPMS patients. The functional relevance of this brain metabolite measure was suggested by the observed but statistically nonsignificant correlation between higher disability scores on the Expanded Disability Status Scale and lower gray matter NAA concentrations. CONCLUSION: The otherwise occult abnormality in supratentorial gray matter in SPMS but not RRMS may explain the more severe physical and cognitive impairments afflicting patients with SPMS that do not correlate well with visible lesion burden.