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Patty Chondros

Publications and source records attributed to Patty Chondros.

18 recordsLinked to original sources
PubMed2006

Clinical features and outcomes of childhood dilated cardiomyopathy: results from a national population-based study.

BACKGROUND: Despite considerable mortality, population-based prognostic factors for childhood dilated cardiomyopathy are lacking. METHODS AND RESULTS: A population-based cohort study was undertaken of all children in Australia who presented with cardiomyopathy at age 0 to 10 years between January 1, 1987, and December 31, 1996. A single cardiologist analyzed all cardiac investigations, and a single pathologist analyzed histopathological material. There were 184 subjects with dilated cardiomyopathy. Positive viral identification or lymphocytic myocarditis was found in 30 (68.2%) of 44 cases with available early histology and 8 of 9 cases presenting with sudden death. Freedom from death or transplantation was 72% (95% CI, 65% to 78%) 1 year after presentation and 63% (95% CI, 55% to 70%) at 5 years. By proportional hazards regression analysis, risk factors for death or transplantation comprised age >5 years at presentation (hazard ratio 5.6, 95% CI, 2.6 to 12.0), familial dilated cardiomyopathy (hazard ratio, 2.9; 95% CI, 1.5 to 5.6), lower initial fractional shortening z score (hazard ratio per z-score unit, 0.75; 95% CI, 0.65 to 0.87), and failure to increase fractional shortening z score during follow-up (hazard ratio per unit increase, 0.68; 95% CI, 0.58 to 0.79). At follow-up, 78 (44.6%) of 175 cases diagnosed during life have no symptoms and are not taking any cardiac medication. CONCLUSIONS: Early mortality is high in childhood dilated cardiomyopathy, but the clinical status of long-term survivors is good. This population-based study identifies children at risk of adverse events.

Cardiomyopathy, Dilated↗
PubMed2005

Clinical features and outcomes of childhood hypertrophic cardiomyopathy: results from a national population-based study.

BACKGROUND: Population-based studies have provided insight into the natural history of adult hypertrophic cardiomyopathy, but comparable information for affected children is lacking. METHODS AND RESULTS: All Australian children who presented with primary cardiomyopathy at 0 to 10 years of age between January 1, 1987, and December 31, 1996, were enrolled in a longitudinal cohort study. A single cardiologist reviewed serial cardiac investigations on each subject. A total of 80 subjects with hypertrophic cardiomyopathy were identified. An underlying syndromal, genetic, or metabolic condition was identified in 46 subjects (57.5%). There were no cases of sudden death at presentation. Left ventricular outflow tract obstruction was present in 32 subjects (40%); right ventricular outflow obstruction was present in 10 (12.5%). Freedom from death or transplantation was 83% (95% CI, 73 to 90) 5 years after presentation and 76% (95% CI, 62 to 86) 10 years after presentation. By proportional-hazards regression analysis, risk factors for death or transplantation included concentric left ventricular hypertrophy, age at presentation <1 year, lower initial fractional shortening Z score, and increasing left ventricular posterior wall thickness relative to body surface area. At the latest follow-up, 54 of 65 surviving subjects had no symptoms, and 46 were receiving no regular medication. CONCLUSIONS: Syndromal, genetic, and metabolic causes predominate in children with hypertrophic cardiomyopathy. Ventricular outflow tract obstruction is common. The clinical status of long-term survivors is good. This population-based study identifies children with hypertrophic cardiomyopathy who are at risk of adverse events.

Arrhythmias, Cardiac↗
PubMed2005

Intraclass correlation coefficients from three cluster randomised controlled trials in primary and residential health care.

OBJECTIVE: This paper provides intraclass correlation coefficients (ICCs) for estimation of sample size inflation required in future cluster randomised trials in primary or residential care. METHODS: Three cluster randomised trials were conducted among middle-aged and older adults in primary care and residential care in Australia and New Zealand between 1995 and 2002. Baseline means or proportions, mean change, and ICCs with their standard errors and 95% confidence intervals are reported for outcome variables used in the three studies. The ICCs were estimated from a one-way random effects model using the analysis of variance method. RESULTS: ICCs for quality of life and psychological variables in the primary care studies were low (below 0.018). ICCs for clinical and physical activity variables ranged from 0 to 0.08. ICCs for health and functional status in residential care for the elderly were high, ranging from 0.025 to 0.514. CONCLUSIONS: The magnitude of the intraclass correlation varies with the venue of the trial, the outcome variables used, and the expected effect of the intervention. However, the intraclass correlations provided will be useful for more appropriate planning of residential and primary care-based trials in the future.

Adult↗
PubMed2005

Shared maternity care: all care--not enough responsibility? An audit of patient care communications pre- and post- a multi-faceted intervention.

BACKGROUND: Shared maternity care is an important model of care in Australia and overseas, but Victorian studies have shown patient dissatisfaction and widespread communication problems. AIMS: This study aimed to implement and evaluate initiatives to improve communication between three maternity hospitals and general practitioners involved in shared maternity care in Melbourne. METHODS: A pre- and post-design with audit of 150 hospital records at each of three hospitals plus audit of 20 general practitioner files for evidence of key communications on shared care patients, before and after a multifaceted intervention. RESULTS: Significant improvements at individual hospitals were seen if one person was made responsible for a communication outcome. Other initiatives did not lead to improvements if they did not include individual accountability. CONCLUSION: The standard of integration of shared maternity care is unacceptable low. Improvements to communication are achievable but depend on the allocation of individual time and responsibility, plus a commitment by hospitals to ongoing audit of their performance.

Family Practice↗
PubMed2004

Observed intra-cluster correlation coefficients in a cluster survey sample of patient encounters in general practice in Australia.

BACKGROUND: Cluster sample study designs are cost effective, however cluster samples violate the simple random sample assumption of independence of observations. Failure to account for the intra-cluster correlation of observations when sampling through clusters may lead to an under-powered study. Researchers therefore need estimates of intra-cluster correlation for a range of outcomes to calculate sample size. We report intra-cluster correlation coefficients observed within a large-scale cross-sectional study of general practice in Australia, where the general practitioner (GP) was the primary sampling unit and the patient encounter was the unit of inference. METHODS: Each year the Bettering the Evaluation and Care of Health (BEACH) study recruits a random sample of approximately 1,000 GPs across Australia. Each GP completes details of 100 consecutive patient encounters. Intra-cluster correlation coefficients were estimated for patient demographics, morbidity managed and treatments received. Intra-cluster correlation coefficients were estimated for descriptive outcomes and for associations between outcomes and predictors and were compared across two independent samples of GPs drawn three years apart. RESULTS: Between April 1999 and March 2000, a random sample of 1,047 Australian general practitioners recorded details of 104,700 patient encounters. Intra-cluster correlation coefficients for patient demographics ranged from 0.055 for patient sex to 0.451 for language spoken at home. Intra-cluster correlations for morbidity variables ranged from 0.005 for the management of eye problems to 0.059 for management of psychological problems. Intra-cluster correlation for the association between two variables was smaller than the descriptive intra-cluster correlation of each variable. When compared with the April 2002 to March 2003 sample (1,008 GPs) the estimated intra-cluster correlation coefficients were found to be consistent across samples. CONCLUSIONS: The demonstrated precision and reliability of the estimated intra-cluster correlations indicate that these coefficients will be useful for calculating sample sizes in future general practice surveys that use the GP as the primary sampling unit.

Australia↗
PubMed2004

Effect of lactobacillus in preventing post-antibiotic vulvovaginal candidiasis: a randomised controlled trial.

OBJECTIVE: To test whether oral or vaginal lactobacillus can prevent vulvovaginitis after antibiotic treatment. DESIGN: Randomised, placebo controlled, double blind, factorial 2x2 trial. SETTING: Fifty general practices and 16 pharmacies in Melbourne, Australia. PARTICIPANTS: Non-pregnant women aged 18-50 years who required a short course of oral antibiotics for a non-gynaecological infection: 278 were enrolled in the study, and results were available for 235. INTERVENTIONS: Lactobacillus preparations taken orally or vaginally, or both, from enrollment until four days after completion of their antibiotic course. MAIN OUTCOME MEASURES: Participants' reports of symptoms of post-antibiotic vulvovaginitis, with microbiological evidence of candidiasis provided by a self obtained vaginal swab. RESULTS: Overall, 55/235 (23% (95% confidence interval 18% to 29%)) women developed post-antibiotic vulvovaginitis. Compared with placebo, the odds ratio for developing post-antibiotic vulvovaginitis with oral lactobacillus was 1.06 (95% confidence interval 0.58 to 1.94) and with vaginal lactobacillus 1.38 (0.75 to 2.54). Compliance with antibiotics and interventions was high. The trial was terminated after the second interim analysis because of lack of effect of the interventions. Given the data at this time, the chances of detecting a significant reduction in vulvovaginitis with oral or vaginal lactobacillus treatment were less than 0.032 and 0.0006 respectively if the trial proceeded to full enrollment. CONCLUSIONS: The use of oral or vaginal forms of lactobacillus to prevent post-antibiotic vulvovaginitis is not supported by these results. Further research on this subject is unlikely to be fruitful, unless new understandings about the pathogenesis of post-antibiotic vulvovaginitis indicate a possible role for lactobacillus.

Administration, Intravaginal↗
PubMed2004

The PAV trial: does lactobacillus prevent post-antibiotic vulvovaginal candidiasis? Protocol of a randomised controlled trial [ISRCTN24141277].

BACKGROUND: Complementary and alternative medicines are used by many consumers, and increasingly are being incorporated into the general practitioner's armamentarium. Despite widespread usage, the evidence base for most complementary therapies is weak or non-existent. Post-antibiotic vulvovaginitis is a common problem in general practice, for which complementary therapies are often used. A recent study in Melbourne, Australia, found that 40% of women with a past history of vulvovaginitis had used probiotic Lactobacillus species to prevent or treat post-antibiotic vulvovaginitis. There is no evidence that this therapy is effective. This study aims to test whether oral or vaginal lactobacillus is effective in the prevention of post-antibiotic vulvovaginitis. METHODS/DESIGN: A randomised placebo-controlled blinded 2 x 2 factorial design is being used. General practitioners or pharmacists approach non-pregnant women, aged 18-50 years, who present with a non-genital infection requiring a short course of oral antibiotics, to participate in the study. Participants are randomised in a four group factorial design either to oral lactobacillus powder or placebo and either vaginal lactobacillus pessaries or placebo. These interventions are taken while on antibiotics and for four days afterwards or until symptoms of vaginitis develop. Women self collect a vaginal swab for culture of Candida species and complete a survey at baseline and again four days after completing their study medications. The sample size (a total of 496--124 in each factorial group) is calculated to identify a reduction of half in post-antibiotic vulvovaginitis from 23%, while allowing for a 25% drop-out. An independent Data Monitoring Committee is supervising the trial. Analysis will be intention-to-treat, with two pre-specified main comparisons: (i) oral lactobacillus versus placebo and (ii) vaginal lactobacillus versus placebo.

Adult↗
PubMed2004

Association between depression and abuse by partners of women attending general practice: descriptive, cross sectional survey.

OBJECTIVE: To explore the association between depression and physical, emotional, and sexual abuse by partners or ex-partners of women attending general practice. DESIGN: Descriptive, cross sectional survey. SETTING: 30 general practitioners in Victoria, Australia. PARTICIPANTS: 1257 consecutive female patients. MAIN OUTCOME MEASURES: Some type of abuse in an adult intimate relationship (composite abuse scale), depression (Beck depression inventory or Edinburgh postnatal depression scale), and physical health (SF-36). RESULTS: 18.0% (218/1213) of women scored as currently probably depressed and 24.1% (277/1147) had experienced some type of abuse in an adult intimate relationship. Depressed women were significantly more likely to have experienced severe combined abuse than women who were not depressed after adjusting for other significant sociodemographic variables (odds ratio 5.8, 95% confidence interval 2.8 to 12.0). These variables included not being married, having a poor education, being on a low income, being unemployed or receiving a pension, pregnancy status, or being abused as a child. CONCLUSION: Physical, emotional, and sexual abuse are strongly associated with depression in women attending general practice. Doctors should sensitively ask depressed women about their experiences of violence and abuse in intimate relationships. Research into depression should include measures of partner abuse in longitudinal and intervention studies.

Adolescent↗
PubMed2003

"Not thrush again!" Women's experience of post-antibiotic vulvovaginitis.

OBJECTIVES: To examine the frequency of post-antibiotic vulvovaginitis (PAV); describe how women prevent and treat PAV; and determine whether concern about PAV affects their decisions about taking antibiotics. DESIGN: Cross-sectional survey using a written questionnaire. SETTING AND PARTICIPANTS: Five general practice waiting rooms in north-western Melbourne, in February 2000. 1298 women aged 18-70 years were surveyed. MAIN OUTCOME MEASURES: Self-reported symptoms and management of vulvovaginitis and PAV. RESULTS: The response rate was 86%. Thirty-five per cent of women reported ever having PAV and 73% reported ever having symptoms suggestive of vulvovaginal candidiasis. Antifungal medications and lactobacillus products or yoghurt were most popular for both prevention (49%, 40%) and treatment (63%, 43%) of PAV. Other home remedies such as tea tree oil, vinegar, and dietary and clothing modification were infrequently used by the women surveyed. Twenty-three per cent of women who had taken antibiotics in the previous month had experienced symptoms of vulvovaginitis. Of women who had ever had vulvovaginitis, 35% were moderately to very concerned about developing PAV when prescribed antibiotics. Because of this concern, around a fifth of these women would not take prescribed antibiotics. CONCLUSIONS: Concern about PAV affects women's decision-making regarding antibiotic use. Many women use unproven complementary therapies to prevent or treat PAV. When prescribing antibiotics, doctors should discuss the risks of PAV and its management with patients.

Adolescent↗
PubMed2003

The epidemiology of childhood cardiomyopathy in Australia.

BACKGROUND: The incidence and age distribution of primary cardiomyopathy in children are not well defined. We undertook a population-based, retrospective cohort study in Australia to document the epidemiology of childhood cardiomyopathy. METHODS: We analyzed all cases of primary cardiomyopathy in children who presented between 1987 and 1996 and who were younger than 10 years of age. Children were recruited from multiple sources, and cases of cardiomyopathy were classified according to World Health Organization guidelines. RESULTS: Over the 10-year period, 314 new cases of primary cardiomyopathy were identified, for an annual incidence of 1.24 per 100,000 children younger than 10 years of age (95 percent confidence interval, 1.11 to 1.38). Dilated cardiomyopathy made up 58.6 percent of cases, hypertrophic cardiomyopathy 25.5 percent, restrictive cardiomyopathy 2.5 percent, and left ventricular noncompaction 9.2 percent of cases. The incidence of all types of cardiomyopathy except restrictive declined rapidly after infancy. In 11 cases (3.5 percent), sudden death was the first symptom. There was a male predominance among children with hypertrophic and unclassified cardiomyopathy. Indigenous children had a higher incidence of dilated cardiomyopathy than nonindigenous children (relative risk, 2.67; 95 percent confidence interval, 1.42 to 4.63) and a higher rate of death as the presenting symptom (16.7 percent vs. 2.6 percent, P=0.02). Lymphocytic myocarditis was present in 25 of 62 children with dilated cardiomyopathy (40.3 percent) who underwent cardiac histologic examination within two months after presentation. CONCLUSIONS: Lymphocytic myocarditis and left ventricular noncompaction are important causes of childhood cardiomyopathy in Australia. The timing and severity of presentation in children with cardiomyopathy are related to the type of cardiomyopathy, as well as to genetic and ethnic factors.

Age Distribution↗
PubMed2003

Doctors' perceptions and attitudes to prescribing within the Authority Prescribing System.

OBJECTIVE: To examine doctors' perceptions and attitudes to prescribing within the Authority Prescribing System (APS). DESIGN AND SETTING: Questionnaire survey of Australian doctors' responses to a number of statements and factorial vignettes, conducted between 1 May and 30 June 2001. PARTICIPANTS: A national random sample of 1200 doctors, stratified according to specialist/generalist, rural/urban and high/low prescriber: 669 (56%) responded. MAIN OUTCOME MEASURES: Self-reported perceptions of the APS and attitudes to prescribing within the APS. RESULTS: 72% of doctors agreed that the APS makes effective medications available to the socioeconomically disadvantaged members of the Australian public and 50% agreed that it compromises patient privacy. Fewer agreed that authority indicators were based on the highest quality of evidence quality (40%) or medication safety (12%). Doctors placed more emphasis on the doctor-patient relationship than on the criteria for authority prescribing in their decisions about prescribing APS medications. Doctors who used computers to prescribe were more likely to agree that computers can improve the authority prescribing process. CONCLUSIONS: This study suggests that authority-required prescribing is not achieving the stated aims of the National Medicines Policy in reducing variability in prescribing. Strategies to improve the quality of prescribing must consider the professional and ethical conundrum associated with prescribing outside of PBS/APS approved use for clinical and patient-centred reasons.

Adult↗
PubMed2003

Effect of low-glycemic-index dietary advice on dietary quality and food choice in children with type 1 diabetes.

BACKGROUND: The practicality of diets with a low glycemic index (GI) is controversial. Theoretically, low-GI diets may limit food choice and increase dietary fat intake, but there is little objective evidence to support such a theory. OBJECTIVE: The objective was to determine the effect of low-GI dietary advice on dietary quality and food choice in children with diabetes. DESIGN: Children aged 8-13 y with type 1 diabetes (n = 104) were recruited to a prospective, randomized study comparing the effects of traditional carbohydrate-exchange dietary advice (CHOx) with those of more flexible low-GI dietary advice (LowGI). We determined the effect on long-term macronutrient intake and food choice with the use of 3-d food diaries. RESULTS: There were no differences in reported macronutrient intakes during any of the recording periods. After 12 mo, intakes of dietary fat (33.5 +/- 5.6% and 34.2 +/- 6.7% of energy, P = 0.65), carbohydrate (48.8 +/- 5.4% and 48.6 +/- 6.5% of energy, P = 0.86), protein (17.6 +/- 2.5% and 17.3 +/- 3.7% of energy, P = 0.61), total sugars, and fiber did not differ significantly between the CHOx and LowGI groups, respectively. The average number of different carbohydrate food choices per day also did not differ significantly. Subjects in the lowest-GI quartile consumed less carbohydrate as potato and white bread, but more carbohydrate as dairy-based foods and whole-grain breads than did subjects in the highest-GI quartile. CONCLUSION: Children with diabetes who receive low-GI dietary advice do not report more limited food choices or a diet with worse macronutrient composition than do children who consume a traditional carbohydrate-exchange diet.

Adolescent↗
PubMed2003

Guidelines for assessing postnatal problems: introducing evidence-based guidelines in Australian general practice.

BACKGROUND: Postnatal morbidity is high, and many GPs lack the confidence and knowledge to deal with common postnatal problems. There is a high consultation rate, but few women disclose common health problems. OBJECTIVE: The aim of the present study was to increase the knowledge and skills of GPs to enable them to identify and manage common health problems experienced by women in the year following childbirth. METHODS: An educational programme [Guidelines for Assessing Postnatal Problems (GAPP)] embedded within a large randomized community intervention trial [Program of Resources, Information and Support for Mothers (PRISM)] with a before/after evaluation was undergone by Australian GPs working in four metropolitan and four rural communities. The programme comprised audit, interactive workshops, role-play and evidence-based guidelines, and was evaluated at baseline and 6 months through written questionnaires and a surgery consultation with a trained simulated patient evaluator. RESULTS: A total of 68 (86%) GPs took part in the full GAPP programme. The odds of a GP improving on the knowledge items ranged from 1.0 to 16, with the greatest change occurring in knowledge about the effectiveness of cognitive behavioural therapy for maternal depression. Of the GPs with an incorrect response at baseline, the percentage demonstrating improved knowledge at follow-up ranged from 22 to 100%. Around half of the GPs demonstrated excellent communication skills at baseline. Of the remaining GPs, more than half demonstrated greatly improved skills to detect common postnatal problems at follow-up. At baseline simulated patient visit, 70% of GPs inquired about sexual problems yet none inquired about the possibility of abuse, whereas at follow-up 94% inquired about sexual problems and 51.5% facilitated the disclosure of physical and emotional abuse. Anonymous feedback on the programme by participating GPs showed that 89% believed the programme positively influenced their actual practice. Interestingly, GPs demonstrated greater knowledge and skills in the simulated setting than on the written questionnaire. CONCLUSIONS: This relatively brief multifaceted educational programme assisted many participants in improving their knowledge and the skills required to improve both physical and emotional health after birth. Despite being experienced clinicians and participating actively in a programme on interviewing skills, half of the GPs did not facilitate disclosure of the underlying sensitive issue (abuse) during the follow-up consultation and could benefit from further in-depth training in effective communication skills.

Australia↗
PubMed2002

The inverse care law revisited: impact of disadvantaged location on accessing longer GP consultation times.

OBJECTIVE: To compare the rate of provision of longer consultations per head of population across practice locations categorised by socioeconomic status. DESIGN: Retrospective analysis of Medicare data for all consultations for all general practitioners in Australia for the 1998-99 and 1999-2000 financial years, grouped by postcode of practice location. Postcodes were categorised by the Socio-Economic Indexes for Areas, Index of Relative Socio-Economic Disadvantage score. MAIN OUTCOME MEASURES: Number of consultations and number of brief, standard, long and prolonged consultations per capita in each postcode grouping. RESULTS: The absolute number of long plus prolonged consultations showed no trend across postcode groups, but the rate ratio per person was significantly higher in more advantaged postcode areas. This represents an example of care provision in inverse relationship to need. DISCUSSION: Despite higher rates of chronic disease and lower rates of preventive care uptake, patients in low socioeconomic status areas receive longer GP consultations at a lower rate than patients in more advantaged areas. Possible strategies to overcome this inverse care provision include increased numbers of GPs in disadvantaged communities, removal of financial disincentives to longer consultations, and strengthening health promotion and community health services in disadvantaged areas.

Family Practice↗
PubMed2002

Sterilisations in girls and young women: is it still happening?

OBJECTIVE: To determine whether sterilising procedures - hysterectomies, endometrial ablations or tubal ligations - are being performed in minors for non-therapeutic reasons, without Family Law Court approval. METHODS: Victorian Admitted Episode Dataset 1996-99 was used to identify all young women < 18 who had a sterilising procedure. Associated codes for indications and pathology were reviewed to exclude malignancies, congenital anomalies, potential miscoding and misleading codes associated with endometriosis. RESULTS: Although 40 procedures were identified from the dataset, the majority of these can be excluded after review of the associated codes. In two cases sterilising procedures were performed without clear therapeutic indications and it is likely they were done in young women with disabilities. No Family Law Court applications were heard in this time period, thus it is likely they represent unlawful sterilisations. CONCLUSIONS: It would appear that sterilisations without Family Law Court approval are probably occurring at very low rates in Victoria.

Adolescent↗