RESUMO
Substantial progress has been made in the standardization of nomenclature for paediatric and congenital cardiac care. In 1936, Maude Abbott published her Atlas of Congenital Cardiac Disease, which was the first formal attempt to classify congenital heart disease. The International Paediatric and Congenital Cardiac Code (IPCCC) is now utilized worldwide and has most recently become the paediatric and congenital cardiac component of the Eleventh Revision of the International Classification of Diseases (ICD-11). The most recent publication of the IPCCC was in 2017. This manuscript provides an updated 2021 version of the IPCCC.The International Society for Nomenclature of Paediatric and Congenital Heart Disease (ISNPCHD), in collaboration with the World Health Organization (WHO), developed the paediatric and congenital cardiac nomenclature that is now within the eleventh version of the International Classification of Diseases (ICD-11). This unification of IPCCC and ICD-11 is the IPCCC ICD-11 Nomenclature and is the first time that the clinical nomenclature for paediatric and congenital cardiac care and the administrative nomenclature for paediatric and congenital cardiac care are harmonized. The resultant congenital cardiac component of ICD-11 was increased from 29 congenital cardiac codes in ICD-9 and 73 congenital cardiac codes in ICD-10 to 318 codes submitted by ISNPCHD through 2018 for incorporation into ICD-11. After these 318 terms were incorporated into ICD-11 in 2018, the WHO ICD-11 team added an additional 49 terms, some of which are acceptable legacy terms from ICD-10, while others provide greater granularity than the ISNPCHD thought was originally acceptable. Thus, the total number of paediatric and congenital cardiac terms in ICD-11 is 367. In this manuscript, we describe and review the terminology, hierarchy, and definitions of the IPCCC ICD-11 Nomenclature. This article, therefore, presents a global system of nomenclature for paediatric and congenital cardiac care that unifies clinical and administrative nomenclature.The members of ISNPCHD realize that the nomenclature published in this manuscript will continue to evolve. The version of the IPCCC that was published in 2017 has evolved and changed, and it is now replaced by this 2021 version. In the future, ISNPCHD will again publish updated versions of IPCCC, as IPCCC continues to evolve.
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Cardiopatias Congênitas , Classificação Internacional de Doenças , Criança , Feminino , Humanos , Sistema de Registros , Sociedades Médicas , Organização Mundial da SaúdeRESUMO
Service learning is an educational methodology that facilitates transformation of students' knowledge, attitudes and attitudes around holistic care through work with community organizations. To implement academically, defensible service learning requires faculty endorsement, consideration of course credit, an enthusiastic champion able to negotiate agreements with organizations, organizations' identification of their own projects so they are willing to both fund and supervise them, curricular underpinning that imparts the project skills necessary for success, embedding at a time when students' clinical identity is being formed, small packets of curriculum elements delivered "just in time" as students engage with their project, flexible online platform/s, assessment that is organically related to the project, providing cross cultural up-skilling, and focused on the students' responsibility for their own product. The result is a learning experience that is engaging for medical students, links the university to the community, and encourages altruism which is otherwise reported to decline through medical school.
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Serviços de Saúde Comunitária/organização & administração , Educação de Graduação em Medicina/organização & administração , Saúde Pública/educação , Atitude , Currículo , Humanos , Desenvolvimento de Programas , Estudantes de MedicinaRESUMO
OBJECTIVES: Screening of men who have sex with men (MSM) for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) requires sampling from anorectal and pharyngeal sites in addition to urogenital sampling. Due to the cost of testing multiple anatomical sites individually testing of pooled specimens has potential merit. The Cepheid GeneXpert CT/NG assay (GeneXpert), which also has potential for point-of-care nucleic acid testing in the sexual health clinic, has not been assessed for pooled specimen testing. METHODS: We prospectively compared GeneXpert testing of pooled pharyngeal and rectal swabs with urine samples to standard of care testing of individual specimens from 107 participants using the Roche cobas 4800 CT/NG assay (cobas) for CT and NG in high-risk MSM attending an inner city sexual health clinic. RESULTS: We found testing of pooled pharyngeal, rectal and urine samples by the GeneXpert to have 100% agreement for NG and 94% overall agreement for CT when compared with individual specimen testing by cobas. For CT testing, 14 cases were detected for both tests, 4for cobas only, 2 for GeneXpert only and 89 participants were negative for both tests. CONCLUSIONS: Pooled specimen CT and NG testing by the GeneXpert was accurate when compared with single specimen testing and has potential for screening MSM for CT and NG. The role of pooled specimen testing with the GeneXpert as a point-of-care nucleic acid test in MSM requires further investigation.
Assuntos
Infecções por Chlamydia/diagnóstico , Gonorreia/diagnóstico , Homossexualidade Masculina/estatística & dados numéricos , Doenças Faríngeas/diagnóstico , Doenças Retais/diagnóstico , Adolescente , Adulto , Idoso , Infecções por Chlamydia/urina , Chlamydia trachomatis/isolamento & purificação , Gonorreia/urina , Humanos , Masculino , Pessoa de Meia-Idade , Neisseria gonorrhoeae/isolamento & purificação , Técnicas de Amplificação de Ácido Nucleico/métodos , Doenças Faríngeas/microbiologia , Doenças Faríngeas/urina , Estudos Prospectivos , Doenças Retais/microbiologia , Doenças Retais/urina , Manejo de Espécimes/métodos , Adulto JovemRESUMO
Background: In Australia, high uptake of the quadrivalent human papillomavirus (4vHPV) vaccine has led to reductions in the prevalence of human papillomavirus (HPV) genotypes 6, 11, 16, and 18 in women and girls aged ≤25 years. We evaluated the impact of the program impact on HPV prevalence in unvaccinated male subjects. Methods: Sexually active heterosexual male subjects aged 16-35 years were recruited in 2014-2016. Participants provided a self-collected penile swab sample for HPV genotyping (Roche Linear Array) and completed a demographic and risk factor questionnaire. Results: The prevalence of 4vHPV genotypes among 511 unvaccinated male subjects was significantly lower in those aged ≤25 than in those aged >25 years: 3.1% (95% confidence interval, 1.5%-5.7%) versus 13.7% (8.9%-20.1%), respectively (P < .001); adjusted prevalence ratio, 0.22 (.09-.51; P < .001). By contrast, the prevalence of high-risk HPV genotypes other than 16 and 18 remained the same across age groups: 16.8% (95% confidence interval, 12.6%-21.9%) in men aged ≤25 years and 17.9% (12.4%-25.0%) in those aged >25 years (P = .76); adjusted prevalence ratio, 0.98, (.57-1.37; P = .58). Conclusions: A 78% lower prevalence of 4vHPV genotypes was observed among younger male subjects. These data suggest that unvaccinated men may have benefited from herd protection as much as women from a female-only HPV vaccination program with high coverage.
Assuntos
Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Adolescente , Adulto , Austrália/epidemiologia , Feminino , Heterossexualidade , Humanos , Programas de Imunização , Masculino , Papillomaviridae/genética , Pênis/virologia , Prevalência , Inquéritos e Questionários , Adulto JovemRESUMO
Rheumatic heart disease (RHD) remains an important global health challenge. Administration of benzathine penicillin (BPG) every 3 to 4 weeks is recommended as a secondary prophylaxis to prevent recurrent episodes of acute rheumatic fever and subsequent RHD. Following intramuscular injection, BPG is hydrolyzed to penicillin G (benzylpenicillin). However, little is known of the pharmacokinetics (PK) of BPG in pediatric populations at high risk of RHD or of the pharmacokinetic-pharmacodynamic relationship between penicillin exposure and clinically relevant outcomes. Dried blood spot (DBS) assays can facilitate PK studies in situations where frequent venous blood sampling is logistically difficult. A liquid chromatography-mass spectroscopy assay for penicillin G in plasma and DBS was developed and validated. Application of the DBS assay for PK studies was confirmed using samples from adult patients receiving penicillin as part of an infection management plan. The limit of quantification for penicillin G in DBS was 0.005 mg/liter. Penicillin G is stable in DBS for approximately 12 h at room temperature (22°C), 6 days at 4°C, and >1 month at -20°C. Plasma and DBS penicillin G concentrations for patients receiving BPG and penicillin G given via bolus doses correlated well and had comparable time-concentration profiles. There was poor correlation for patients receiving penicillin via continuous infusions, perhaps as a result of the presence of residual penicillin in the peripherally inserted central catheter, from which the plasma samples were collected. The present DBS penicillin G assay can be used as a surrogate for plasma concentrations to provide valid PK data for studies of BPG and other penicillin preparations developed to prevent rheumatic fever and RHD.
Assuntos
Antibacterianos/sangue , Teste em Amostras de Sangue Seco/métodos , Penicilina G Benzatina/sangue , Penicilina G/sangue , Febre Reumática/prevenção & controle , Adulto , Idoso , Antibacterianos/administração & dosagem , Feminino , Humanos , Injeções Intramusculares , Limite de Detecção , Masculino , Pessoa de Meia-Idade , Penicilina G/administração & dosagem , Penicilina G Benzatina/administração & dosagem , Cardiopatia Reumática/prevenção & controleRESUMO
PURPOSE: To assess the repeatability of gonioscopy, van Herick method and anterior segment Optical Coherence Tomography (AS-OCT) and determine the agreement between these techniques within a community optometry setting. METHODS: Gonioscopy, van Herick method and AS-OCT imaging were performed by an optometrist on two occasions, 1 month apart, on 80 subjects aged over 40 years recruited from community optometry practices. Anterior segment images were captured with a spectral domain OCT (Topcon 3D OCT-2000; wavelength 840 nm) set to the Anterior Segment (AS) mode. Eyes were graded as open or occludable for each method. AS-OCT images from both visits were graded by a second optometrist masked to the gonioscopy and van Herick method results, and the visit on which the images were acquired. Cohen's kappa (κ) was used to describe the intra-observer repeatability. Likelihood ratios, sensitivity and specificity of van Herick method and AS-OCT were calculated, using gonioscopy as the reference standard. RESULTS: Measurements were obtained from 80 eyes of 80 subjects. In four cases, AS-OCT images were un-gradable due to difficulty in locating the scleral spur. The repeatability of gonioscopy was fair κ = 0.29, while that of the van Herick method (κ = 0.54) and AS-OCT (κ = 0.47) were somewhat better. The van Herick method showed good sensitivity (visit 1: 75%, visit 2: 69%) and high specificity (visit 1: 88%, visit 2: 96%). The sensitivity of AS-OCT was fair (visit 1: 46%, visit 2: 25%), but specificity was high (visit 1: 87%. visit 2: 89%). CONCLUSION: Intra-observer repeatability was better for van Herick method and for AS-OCT than for gonioscopy, despite the latter being considered the gold standard method. The van Herick method appeared to be more sensitive than AS-OCT when identifying eyes at risk of angle closure. A standalone anterior segment OCT with a longer wavelength laser could afford better visualisation of the angle, and might therefore be expected to enable the examiner to make more precise classifications. These instruments are not widely used by optometrists in clinical practice in the UK at present.
Assuntos
Câmara Anterior/patologia , Glaucoma de Ângulo Fechado/diagnóstico , Gonioscopia/normas , Tomografia de Coerência Óptica/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Sensibilidade e EspecificidadeRESUMO
BACKGROUND: It is reported that more than 128 million patients are seen in emergency departments (EDs) annually. Patient overcrowding had been associated with an increased occurrence of medication errors. PURPOSE: Due to increased patient volume and the need for improved patient safety, a 24-hour pharmacy service was established for our institution's ED. The purpose of the study is to quantify and demonstrate the impact of a 24-hour pharmacy service in an urban ED. METHODS: This was a retrospective descriptive study conducted at a regional level 1 trauma center. The study period occurred between December 2012 and July 2013. The following variables were quantified and analyzed: number of medication orders reviewed, number of intravenous medications compounded, and number of clinical interventions that were recommended by the ED pharmacy team (EDPT) and accepted by ED clinicians. RESULTS: A total of 3,779 medication orders were reviewed by the EDPT. Of these orders, 3,482 (92%) were prospectively reviewed. A total of 3,068 (81.2%) and 711 (18.8%) orders were reviewed for the adult and pediatric ED, respectively. During the study period, the EDPT procured 549 intravenous admixtures and conducted 642 clinical interventions. Most of the interventions involved providing drug information for physicians and nurses (45.9%), adjusting drug dosages (21.1%), and recommending antimicrobial therapy (15.1%). CONCLUSION: The implementation of a 24-hour pharmacy service at our institution was an innovative practice that increased the role of pharmacists in the ED. The EDPT conducted prospective medication review, procured intravenous admixtures from a sterile environment, and provided therapeutic recommendations for the ED interdisciplinary team.
RESUMO
We report on our efforts to create an on-chip system to simultaneously purify and fractionate nucleic acids and proteins from complex samples using isotachophoresis (ITP). We have developed this technique to simultaneously extract extracellular DNA and proteins from human blood serum samples and deliver these to two separate output reservoirs on a chip. The purified DNA is compatible with quantitative polymerase chain reaction (qPCR), and proteins can be extracted so as to exclude albumin, the most abundant protein in serum. We describe significant remaining challenges in making this bidirectional method a robust and efficient technique. These challenges include managing channel surface adsorption of proteins, identifying the cause of observed reductions in low molecular weight proteins, and dealing with nonspecific binding of proteins and DNA.
Assuntos
Proteínas Sanguíneas/isolamento & purificação , Isotacoforese/métodos , Ácidos Nucleicos/isolamento & purificação , Eletroforese em Gel de Poliacrilamida , Humanos , Ácidos Nucleicos/sangueRESUMO
The simultaneous analysis of RNA and DNA of single cells remains a challenge as these species have very similar physical and biochemical properties and can cross-contaminate each other. Presented is an on-chip system that enables selective lysing of single living cells, extraction, focusing, and absolute quantification of cytoplasmic RNA mass and its physical separation from DNA in the nucleus using electrical lysing and isotachophoresis (ITP). This absolute quantitation is performed without enzymatic amplification in less than 5 min. The nucleus is preserved, and its DNA fluorescence signal can be measured independently. We demonstrate the technique using single mouse lymphocyte cells, for which we extracted an average of 14.1 pg of total RNA per cell. We also demonstrate correlation analysis between the absolute amount of RNA and relative amount of DNA, showing heterogeneity associated with cell cycles. The technique is compatible with fractionation of DNA and RNA and with downstream assays of each.
Assuntos
DNA/análise , Linfócitos/química , Análise de Sequência com Séries de Oligonucleotídeos/métodos , RNA/análise , Animais , Linhagem Celular , CamundongosRESUMO
OBJECTIVE: To assess the clinical epidemiology of chlamydia among Aboriginal and Torres Strait Islander (Indigenous) people attending sexual health services around Australia. DESIGN: Retrospective analysis of routine demographic, behavioural and clinical data, between 1 January 2006 and 31 December 2011. SETTING: 18 sexual health services in major cities and regional centres in five jurisdictions. MAIN OUTCOME MEASURES: Attendance, chlamydia testing and positivity rates in patients visiting for the first time, and factors associated with chlamydia positivity. RESULTS: Of 168 729 new patients, 7103 (4.2%) identified as Indigenous, of whom 74.3% were tested for chlamydia. Chlamydia positivity was 17.0% in Indigenous women (23.3% in 15-19-year-olds and 18.9% in 20-24-year-olds) and 17.3% in Indigenous men (20.2% in 15-19-year-olds and 24.2% in 20-24-year-olds). There was an increasing trend in chlamydia positivity in Indigenous women from 2006 to 2011 (P for trend = 0.001), but not in Indigenous men. In Indigenous women, factors independently associated with positivity were: younger age, being heterosexual, living in Queensland and attending the service in 2010. In Indigenous men, independent factors associated with chlamydia positivity were younger age, being heterosexual, having sex only in Australia and living in a regional area. CONCLUSION: The high and increasing chlamydia positivity rates highlight the need for enhanced prevention and screening programs for Indigenous people.
Assuntos
Infecções por Chlamydia/epidemiologia , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Austrália/epidemiologia , Infecções por Chlamydia/etnologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores Sexuais , Adulto JovemAssuntos
Centros Médicos Acadêmicos/economia , Centros Médicos Acadêmicos/normas , Eficiência Organizacional/economia , Eficiência Organizacional/normas , Salas Cirúrgicas/economia , Salas Cirúrgicas/normas , Estudos de Casos Organizacionais/economia , Centros Médicos Acadêmicos/estatística & dados numéricos , Eficiência Organizacional/estatística & dados numéricos , Humanos , Salas Cirúrgicas/estatística & dados numéricos , Estudos de Casos Organizacionais/estatística & dados numéricos , Fatores de TempoRESUMO
Preparation of raw, untreated biological samples remains a major challenge in microfluidics. We present a novel microfluidic device based on the integration of printed circuit boards and an isotachophoresis assay for sample preparation of nucleic acids from biological samples. The device has integrated resistive heaters and temperature sensors as well as a 70 µm × 300 µm × 3.7 cm microfluidic channel connecting two 15 µL reservoirs. We demonstrated this device by extracting pathogenic nucleic acids from 1 µL dispensed volume of whole blood spiked with Plasmodium falciparum. We dispensed whole blood directly onto an on-chip reservoir, and the system's integrated heaters simultaneously lysed and mixed the sample. We used isotachophoresis to extract the nucleic acids into a secondary buffer via isotachophoresis. We analyzed the convective mixing action with micro particle image velocimetry (micro-PIV) and verified the purity and amount of extracted nucleic acids using off-chip quantitative polymerase chain reaction (PCR). We achieved a clinically relevant limit of detection of 500 parasites per microliter. The system has no moving parts, and the process is potentially compatible with a wide range of on-chip hybridization or amplification assays.
Assuntos
Fracionamento Químico/instrumentação , DNA de Protozoário/isolamento & purificação , Equipamentos e Provisões Elétricas , Técnicas Analíticas Microfluídicas/instrumentação , Plasmodium falciparum/citologia , Impressão , Morte Celular , DNA de Protozoário/genética , Plasmodium falciparum/genética , Reação em Cadeia da Polimerase , Pressão , TemperaturaRESUMO
OBJECTIVES: To determine trends and correlates of chlamydia positivity among young heterosexuals attending Australian sexual health services and to compare these with population-based notification data. METHODS: Data from 18 sexual health services and the national notification scheme were analysed. A χ2 test assessed trends in chlamydia positivity among young heterosexuals tested from 2006 to 2010, and logistic regression was used to determine correlates of positivity. Nucleic acid amplification tests were used throughout the study period. RESULTS: During 2006-2010, 64â588 heterosexuals aged 15-29 years attended the sexual health services for the first time and the annual chlamydia testing rate was consistently >80%. Overall, chlamydia positivity increased by 12%, by 8.3% in heterosexual men (from 13.2% in 2006 to 14.3% in 2010; p-trend=0.04) and by 15.9% in women (from 11.3% in 2006 to 13.1% in 2010; p-trend<0.01). Independent correlates of chlamydia positivity in sexual health service patients were being aged 15-24 years, residing in a regional/rural area, being Aboriginal and/or Torres Strait Islander, being a non-Australian resident and attending in 2010 compared with 2006. Over the same period, the population-based notification rate increased by 43% against a background of a >100% increase in testing. CONCLUSIONS: The sexual health service network suggests a moderate increase in chlamydia prevalence in young heterosexuals tested at sexual health services, in contrast to the steep increase shown by notifications. This highlights the caution needed in interpreting chlamydia trends without a corresponding testing denominator.
Assuntos
Chlamydia trachomatis/isolamento & purificação , Linfogranuloma Venéreo/epidemiologia , Vigilância de Evento Sentinela , Adolescente , Adulto , Austrália/epidemiologia , Feminino , Heterossexualidade , Humanos , Masculino , Prevalência , Adulto JovemRESUMO
OBJECTIVE: To evaluate data from an online chlamydia testing program (OLC) developed to increase young people's access to testing for chlamydia, the most commonly notified disease in Australia and Western Australia, with a high proportion of notifications among young people (< 30 years). DESIGN AND SETTING: The OLC was launched in February 2010, and our study covers the period February 2010 to June 2011. Without needing to first visit a doctor, OLC participants receive risk self-assessment, education, testing, and, if necessary, referral for treatment, and can complete an online satisfaction survey. MAIN OUTCOME MEASURES: Number and proportion of downloaded pathology forms that resulted in a test; demographic characteristics of participants; prevalence of chlamydia; completeness and timeliness of follow-up of positive test results; and participant satisfaction. RESULTS: More than half (56%) of the 675 OLC pathology form downloads resulted in a test, and chlamydia was detected in 18% (66/377). Of those tested, over half were men (55%), and 71% were aged < 30 years. All participants with a positive test result received appropriate clinical management, with 50% being treated within 7 days of specimen collection. Of the 17% (55/332) who completed an online satisfaction survey, almost all said they would recommend the service to a friend. CONCLUSION: Internet-based screening for chlamydia is an effective means of increasing access to testing for young people at risk of sexually transmitted infections and is a valuable addition to opportunistic, clinic-based strategies.
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Infecções por Chlamydia/diagnóstico , Sistemas On-Line , Adolescente , Adulto , Fatores Etários , Austrália/epidemiologia , Infecções por Chlamydia/epidemiologia , Feminino , Humanos , Masculino , Sistemas On-Line/organização & administração , Satisfação do Paciente , Prevalência , Adulto JovemRESUMO
Young males have a key role in shaping contraceptive use in a sexual relationship, yet often remain the invisible partner in safe sex promotion. This article describes a conceptual model of STI risk and condom use based on the perceptions and experiences of condom use in a group of young Australian males. An explorative descriptive design was used to conceptualize participants' condom use histories into an organized description of behavior. Forty-two semi-structured interviews were conducted with a purposive sample of males aged 15 to 25 years over an 18 month period. A sequential analytical process of data immersion, coding, and category generation was used to identify personal meanings, motivations, and contextual factors associated with condom use and non-use. Three primary discourses associated with young males' perceptions of STI risk and responding approach to condom use constructed personal commitment to sexual safety as dynamic, context-dependent, and outcome-driven (pregnancy versus STIs as the primary motivator of condom use). A regretful discourse associated with experiences of, or suspected unwanted outcomes, also emerged through changes in risk appraisals and safe sex intentions and behavior. Interventions to increase condom use should go beyond the traditional focus on risky behavior and disease prevention frameworks by addressing the contextual influences on personal risk appraisals and deliver innovative messages to reduce negative social meanings associated with condom use.
Assuntos
Preservativos , Comportamento Contraceptivo/psicologia , Sexo Seguro/psicologia , Comportamento Sexual/psicologia , Infecções Sexualmente Transmissíveis/prevenção & controle , Adolescente , Adulto , Austrália , Redução do Dano , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Entrevistas como Assunto , Masculino , Pesquisa Qualitativa , Assunção de Riscos , Parceiros Sexuais , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Although data from large implementation trials suggest that sexually transmissible infection (STI) risk increases among gay and bisexual men who initiate HIV pre-exposure prophylaxis (PrEP), there are few data on the trends in population-level STI incidence in the years following widespread PrEP implementation. We aimed to describe trends in bacterial STI incidence among gay and bisexual men using PrEP across Australia in the context of broad PrEP availability through Australia's subsidised medicines scheme. METHODS: We analysed linked clinical data from HIV-negative gay and bisexual men aged 16 years or older who had been prescribed PrEP across a sentinel surveillance clinical network, including 37 clinics in Australia, between Jan 1, 2016, and Dec 31, 2019. Patients were included if they had STI testing at least twice during the observation period. Repeat testing methods were used to calculate chlamydia, gonorrhoea, syphilis, and any STI incidence rates during individuals' periods of PrEP use. Incidence rate ratios (IRRs) for estimated change in incidence per half calendar year (6-month) period were calculated using negative binomial regression. Secondary analyses compared STI incidence rates across individuals initiating PrEP in each year from 2016 to 2019, as well as by length of time using PrEP (per each additional 6 months of PrEP use). FINDINGS: 22 730 men were included in the analyses. During the observation period, 11 351 chlamydia infections were diagnosed in 6630 (30·1%) of 22 034 men over 25 991·2 person-years of PrEP use (incidence rate 43·7 cases [95% CI 42·9-44·5] per 100 person-years). Chlamydia incidence decreased from 48·7 cases per 100 person-years in July-December, 2016, to 42·0 cases per 100 person-years in July-December, 2019 (IRR for estimated change per 6-month period 0·98 [95% CI 0·97-0·99]; p=0·0031). 9391 gonorrhoea infections were diagnosed in 5885 (26·9%) of 21 845 men over 24 858·7 person-years of PrEP use (incidence rate 37·8 cases [95% CI 37·0-38·5] per 100 person-years). Gonorrhoea incidence decreased from 45·5 cases per 100 person-years in July-December, 2016, to 37·2 cases per 100 person-years in July-December, 2019 (IRR 0·97 [95% CI 0·96-0·98]; p<0·0001). Declines in chlamydia and gonorrhoea incidence were most prominent in the first 18 months of observation and incidence was stable thereafter. 2062 syphilis infections were diagnosed in 1488 (7·7%) of 19 262 men over 21 978·9 person-years of PrEP use (incidence rate 9·4 cases [95% CI 9·0-9·8] per 100 person-years). Syphilis incidence increased from 6·2 cases per 100 person-years in July-December, 2016, to 9·8 cases per 100 person-years in July-December, 2019 (IRR 1·08 [95% CI 1·05-1·10]; p<0·0001). INTERPRETATION: Chlamydia and gonorrhoea incidence among gay and bisexual men using PrEP were highest in the early months of PrEP implementation in Australia and stabilised at slightly lower rates thereafter following wider PrEP uptake. Lower prospective STI risk among people initiating PrEP in later years contributed to the observed trends in STI incidence. Widespread PrEP implementation can contribute to increased STI screening and detection. FUNDING: Australian Department of Health, National Health and Medical Research Council.
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Infecções Bacterianas , Chlamydia , Gonorreia , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Infecções Sexualmente Transmissíveis , Sífilis , Austrália/epidemiologia , Gonorreia/epidemiologia , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Humanos , Incidência , Masculino , Profilaxia Pré-Exposição/métodos , Estudos Prospectivos , Vigilância de Evento Sentinela , Infecções Sexualmente Transmissíveis/epidemiologia , Sífilis/epidemiologiaRESUMO
We demonstrate a technique for purification of nucleic acids from malaria parasites infecting human erythrocytes using isotachophoresis (ITP). We release nucleic acids from malaria-infected erythrocytes by lysing with heat and proteinase K for 10 min and immediately, thereafter, load sample onto a capillary device. We study the effect of temperature on lysis efficiency. We also implement pressure-driven counterflow during ITP extraction to extend focusing time and increase nucleic acid yield. We show that the purified genomic DNA samples are compatible with polymerase chain reaction (PCR) and demonstrate a clinically relevant limit of detection of 0.5 parasites per nanoliter using quantitative PCR.
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DNA de Protozoário/isolamento & purificação , Eritrócitos/parasitologia , Isotacoforese , Malária/parasitologia , Endopeptidase K/metabolismo , Humanos , Plasmodium falciparum/genética , Plasmodium falciparum/isolamento & purificação , TemperaturaRESUMO
BACKGROUND: In most Australian settings, chlamydia notifications do not contain information on the gender of sexual partners. We assessed trends and predictors of chlamydia testing and positivity among men who have sex with men (MSM), attending sexual health services in Australia. METHODS: The Australian Collaboration for Chlamydia Enhanced Sentinel Surveillance (ACCESS) program was established in 2008 to collate demographic and chlamydia testing information from 25 sexual health services. We calculated the proportion tested and chlamydia positivity among MSM and assessed trends from 2004 to 2008 using a χ2 test and predictors using logistic regression. RESULTS: In the 5-year period, 11,777 MSM attended as new patients (first visit ever to the service) and the proportion tested for chlamydia increased significantly from 71% in 2004 to 79% in 2008 (P < 0.01). Independent predictors of chlamydia testing were younger age, residing in a metropolitan area (adjusted prevalence ratio [APR] = 1.23; 95% confidence interval [CI]: 1.19, 1.27), being Australian-born (APR = 1.03; 95% CI: 1.01, 1.06), being a traveler or migrant (APR = 1.09; 95% CI: 1.06, 1.12), and sex overseas in the past year (APR = 1.05; 95% CI: 1.03, 1.07). Overall chlamydia positivity was 8.6% (95% CI: 8.0%-9.2%). There was no significant trend in chlamydia positivity between 2004 and 2008. Independent predictors of chlamydia positivity were younger age, being a traveler or migrant (APR = 1.52; 95% CI: 1.26-1.84), and exclusive same-sex contact (APR = 1.28; 95% CI: 1.05-1.55). CONCLUSIONS: This new national surveillance program demonstrates that the majority of MSM attending sexual health services was offered chlamydia testing and testing has increased over time. The MSM at highest risk of chlamydia were more likely to be tested. Chlamydia transmission was frequent but stable among MSM accessing clinical services.
Assuntos
Infecções por Chlamydia/epidemiologia , Chlamydia/isolamento & purificação , Homossexualidade Masculina/estatística & dados numéricos , Infecções Sexualmente Transmissíveis/epidemiologia , Adulto , Austrália/epidemiologia , Bissexualidade , Chlamydia/genética , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/microbiologia , Infecções por Chlamydia/transmissão , Estudos de Coortes , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Reto/microbiologia , Fatores de Risco , Vigilância de Evento Sentinela , Comportamento Sexual , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/microbiologia , Infecções Sexualmente Transmissíveis/transmissão , Urina/microbiologia , Adulto JovemRESUMO
Visualization of the vocal cords is paramount during orotracheal intubations. We employed a novel patient position in this derivation study. The Alexandrou Angle of Intubation (AAI) position is defined as a 20°-30° incline where the supine patient's head is elevated in relation to the body and legs. Our study participants were blinded to the goals of the research as well as our novel technique. Using intubation manikins, our participants ranked their preference for visualizing the vocal cords between the Flat, Trendelenburg, and AAI positions. A majority (58.8%) of our study participants preferred the AAI for visualizing the vocal cords over the other two positions. Future studies will reveal whether AAI will play a significant role in emergent airway management.
Assuntos
Intubação Intratraqueal/métodos , Serviços Médicos de Emergência , Humanos , Manequins , Posicionamento do Paciente , Preferência do PacienteRESUMO
OBJECTIVE: Examine the changes in service delivery Australian public sexual health clinics made to remain open during lockdown. METHODS: A cross-sectional survey designed and delivered on Qualtrics was emailed to 21 directors of public sexual health clinics across Australia from July-August 2020 and asked about a variety of changes to service delivery. Descriptive statistics were calculated. RESULTS: Twenty clinics participated, all remained open and reported service changes, including suspension of walk-in services in eight clinics. Some clinics stopped offering asymptomatic screening for varying patient populations. Most clinics transitioned to a mix of telehealth and face-to-face consultations. Nineteen clinics reported delays in testing and 13 reported limitations in testing. Most clinics changed to phone consultations for HIV medication refills (n=15) and eleven clinics prescribed longer repeat prescriptions. Fourteen clinics had staff redeployed to assist the COVID-19 response. CONCLUSION: Public sexual health clinics pivoted service delivery to reduce risk of COVID-19 transmission in clinical settings, managed staffing reductions and delays in molecular testing, and maintained a focus on urgent and symptomatic STI presentations and those at higher risk of HIV/STI acquisition. Implications for public health: Further research is warranted to understand what impact reduced asymptomatic screening may have had on community STI transmission.