Just TRAC it! Transitioning Responsibly to Adult Care Using Smart Phone Technology.

PURPOSE: There is little evidence on whether smartphone technology influences transition readiness among adolescents with heart disease. Just TRAC it! is a method of using existing smartphone features (Notes, Calendar, Contacts, Camera) to manage personal health. We evaluated the impact of Just TRAC it! on self-management skills. METHODS: Randomized clinical trial of 16-18 year-olds with heart disease. Participants were randomly allocated 1:1 to either usual care (education session) or intervention (education session including Just TRAC it!). The primary outcome was change in TRANSITION-Q score between baseline, 3 and 6 months. Secondary outcomes were frequency of use and perceived usefulness of Just TRAC it! Analysis was intention-to-treat. RESULTS: We enrolled 68 patients (41% female, mean age 17.3 years), 68% having previous cardiac surgery and 26% had cardiac catheterization. TRANSITION-Q scores were similar at baseline and increased over time in both groups but were not significantly different between groups. Each additional point at the baseline score brought, on average, a 0.7-point increase in TRANSITION-Q score (95% CI 0.5-0.9) at each of 3 and 6 months. The Camera, Calendar and Notes apps were reported as most useful. All intervention participants would recommend Just TRAC it! to others. DISCUSSION: A nurse-led transition teaching with versus without Just TRAC it! improved transition readiness, with no significant difference between groups. Higher baseline TRANSITION-Q scores were associated with greater increase in scores over time. Participants had a positive reception to Just TRAC it! and would recommend it to others. Smartphone technology may be useful in transition education.

A combined imaging, deformation and registration methodology for predicting respirator fitting.

N95/FFP3 respirators have been critical to protect healthcare workers and their patients from the transmission of COVID-19. However, these respirators are characterised by a limited range of size and geometry, which are often associated with fitting issues in particular sub-groups of gender and ethnicities. This study describes a novel methodology which combines magnetic resonance imaging (MRI) of a cohort of individuals (n = 8), with and without a respirator in-situ, and 3D registration algorithm which predicted the goodness of fit of the respirator. Sensitivity analysis was used to optimise a deformation value for the respirator-face interactions and corroborate with the soft tissue displacements estimated from the MRI images. An association between predicted respirator fitting and facial anthropometrics was then assessed for the cohort.

Transition Preparation for Young Adolescents with Congenital Heart Disease: A Clinical Trial.

OBJECTIVE: To evaluate the impact of a novel nurse-led transition intervention program designed for young adolescents (age 13-14 years) with congenital heart disease (CHD). We hypothesized that the intervention would result in improved self-management skills and CHD knowledge. STUDY DESIGN: Single-center cluster randomized controlled trial of a nurse-led transition intervention vs usual care. The intervention group received a 1-hour individualized session with a cardiology nurse, focusing on CHD education and self-management. The primary end point was change in TRANSITION-Q (transition readiness) score between baseline and 6 months. The secondary end point was change in MyHeart score (CHD knowledge). RESULTS: We randomized 60 participants to intervention (n = 30) or usual care (n = 30). TRANSITION-Q score (range 0-100) increased from 49 ± 10 at baseline to 54 ± 9.0 at 6 months (intervention) vs 47 ± 14 to 44 ± 14 (usual care). Adjusted for baseline score, TRANSITION-Q scores at 1 and 6 months were greater in the intervention group (mean difference 5.9, 95% CI 1.3-10.5, P = .01). MyHeart score (range 0-100) increased from 48 ± 24 at baseline to 71 ± 16 at 6 months (intervention) vs 54 ± 24 to 57 ± 22 (usual care). Adjusted for baseline score, MyHeart scores at 1 and 6 months were greater in the intervention group (mean difference 19, 95% CI 12-26, P < .0001). Participants aged 14 years had a greater increase in TRANSITION-Q score at 6 months compared with 13-year-old participants (P < .05). CONCLUSIONS: A nurse-led program improved transition readiness and CHD knowledge among young adolescents. This simple intervention can be readily adopted in other healthcare settings. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02374892.

Decreased stress shielding with a PEEK femoral total knee prosthesis measured in validated computational models.

Due to their high stiffness, metal femoral implants in total knee arthroplasty may cause stress shielding of the peri-prosthetic bone, which can lead to loss of bone stock. Using a polymer (PEEK) femoral implant reduces the stiffness mismatch between implant and bone, and therefore has the potential to decrease strain shielding. The goal of the current study was to evaluate this potential benefit of PEEK femoral components in cadaveric experiments. Cadaveric femurs were loaded in a materials testing device, while a 3-D digital image correlation set-up captured strains on the surface of the intact femurs and femurs implanted with PEEK and CoCr components. These experimental results were used to validate specimen-specific finite element models, which subsequently were used to assess the effect of metal and PEEK femoral components on the bone strain energy density. The finite element models showed strain maps that were highly comparable to the experimental measurements. The PEEK implant increased strain energy density, relative to the preoperative bone and compared to CoCr. This was most pronounced in the regions directly under the implant and near load contact sites. These data confirm the hypothesis that a PEEK femoral implant can reduce peri-prosthetic stress shielding.

Measurement of Internal Implantation Strains in Analogue Bone Using DVC.

The survivorship of cementless orthopaedic implants may be related to their initial stability; insufficient press-fit can lead to excessive micromotion between the implant and bone, joint pain, and surgical revision. However, too much interference between implant and bone can produce excessive strains and damage the bone, which also compromises stability. An understanding of the nature and mechanisms of strain generation during implantation would therefore be valuable. Previous measurements of implantation strain have been limited to local discrete or surface measurements. In this work, we devise a Digital Volume Correlation (DVC) methodology to measure the implantation strain throughout the volume. A simplified implant model was implanted into analogue bone media using a customised loading rig, and a micro-CT protocol optimised to minimise artefacts due to the presence of the implant. The measured strains were interpreted by FE modelling of the displacement-controlled implantation, using a bilinear elastoplastic constitutive model for the analogue bone. The coefficient of friction between the implant and bone was determined using the experimental measurements of the reaction force. Large strains at the interface between the analogue bone and implant produced localised deterioration of the correlation coefficient, compromising the ability to measure strains in this region. Following correlation coefficient thresholding (removing strains with a coefficient less than 0.9), the observed strain patterns were similar between the DVC and FE. However, the magnitude of FE strains was approximately double those measured experimentally. This difference suggests the need for improvements in the interface failure model, for example, to account for localised buckling of the cellular analogue bone structure. A further recommendation from this work is that future DVC experiments involving similar geometries and structures should employ a subvolume size of 0.97 mm as a starting point.

Developing an Analogue Residual Limb for Comparative DVC Analysis of Transtibial Prosthetic Socket Designs.

Personalised prosthetic sockets are fabricated by expert clinicians in a skill- and experience-based process, with research providing tools to support evidence-based practice. We propose that digital volume correlation (DVC) may offer a deeper understanding of load transfer from prosthetic sockets into the residual limb, and tissue injury risk. This study's aim was to develop a transtibial amputated limb analogue for volumetric strain estimation using DVC, evaluating its ability to distinguish between socket designs. A soft tissue analogue material was developed, comprising silicone elastomer and sand particles as fiducial markers for image correlation. The material was cast to form an analogue residual limb informed by an MRI scan of a person with transtibial amputation, for whom two polymer check sockets were produced by an expert prosthetist. The model was micro-CT scanned according to (i) an unloaded noise study protocol and (ii) a case study comparison between the two socket designs, loaded to represent two-legged stance. The scans were reconstructed to give 108 µm voxels. The DVC noise study indicated a 64 vx subvolume and 50% overlap, giving better than 0.32% strain sensitivity, and ~3.5 mm spatial resolution of strain. Strain fields induced by the loaded sockets indicated tensile, compressive and shear strain magnitudes in the order of 10%, with a high signal:noise ratio enabling distinction between the two socket designs. DVC may not be applicable for socket design in the clinical setting, but does offer critical 3D strain information from which existing in vitro and in silico tools can be compared and validated to support the design and manufacture of prosthetic sockets, and enhance the biomechanical understanding of the load transfer between the limb and the prosthesis.

Perceived Burdensomeness Predicts Outcomes of Short-Term Psychological Treatment of Young People at Risk of Suicide.

The interpersonal-psychological theory of suicide (IPTS; Joiner, ) provides a model for understanding the mechanisms underlying suicide risk, but there is limited research measuring change in the constructs over the course of treatment. This study aimed to test whether changes in perceived burdensomeness (PB) and thwarted belongingness (TB) mediated the effects of changes in depression and hopelessness on suicide risk. The sample comprised 226 Australian young people (aged 12-24; 67.7% female; 5.7% Aboriginal and Torres Strait Islander) receiving short-term psychological treatment for suicide-related behaviors. Change scores over the course of therapy were generated using admission and discharge measures of PB, TB, depression, hopelessness, and suicide risk. Results revealed partial support for the theory. The relationship between changes in depression and hopelessness on suicide risk was fully mediated by changes in PB. However, changes in TB did not mediate these relationships. This study offers encouragement for the potential use of the IPTS in the context of psychological treatment of young people. Assessment of the IPTS constructs may be helpful in assessing change in suicide risk and further assist in treatment.

Nondestructive 3D Imaging and Quantification of Hydrated Biofilm-Sediment Aggregates Using X-ray Microcomputed Tomography.

Biofilm-sediment aggregate (BSA) contains a high water content, either within internal pores and channels or bound by extracellular polymeric substances (EPS) forming a highly hydrated biofilm matrix. Desiccation of BSAs alters the biofilm morphology and thus the physical characteristics of porous media, such as the binding matrix within BSA and internal pore geometry. Observing BSAs in their naturally hydrated form is essential but hampered due to the lack of techniques for imaging and discerning hydrated materials. Generally, imagery techniques (scanning electron microscopy (SEM), transmission electron microscopy (TEM), and focused ion beam nanotomography (FIB-nt)) involve the desiccation of BSAs (freeze-drying or acetone dehydration) or prevent differentiation between BSA components such as inorganic particles and pore water (confocal laser scanning microscopic (CLSM)). Here, we propose a novel methodology that simultaneously achieves the 3D visualization and quantification of BSAs and their components in their hydrated form at a submicron resolution using X-ray microcomputed tomography (µ-CT). It enables the high-resolution detection of comparable morphology of multiphase components within a hydrated aggregate: each single inorganic particle and the hydrated biofilm matrix. This allows the estimation of aggregate density and the illustration of biofilm-sediment binding matrix. This information provides valuable insights into investigations of the transport of BSAs and aggregate-associated sediment particles, contaminants (such as microplastics), organic carbon, and their impacts on aquatic biogeochemical cycling.

Modifiable cardiovascular risk factors in adolescents and adults with congenital heart disease.

OBJECTIVE: Individuals with congenital heart disease (CHD) may be at higher risk of acquired cardiovascular disease than the general population due to their underlying physiology and/or surgical sequelae. We sought to assess the prevalence of cardiovascular disease risk factors in youth and adults with CHD. METHODS: We assessed cardiovascular health as per the Cardiovascular Health in Ambulatory Care Research Team (CANHEART) health index in patients with CHD aged 15+ years who attended cardiology outpatient clinics. Participants self-reported smoking behavior, fruit and vegetable consumption, physical activity, and whether they had diabetes and hypertension. Individual health indices were categorized into ideal/not ideal, and sum of individual health indices was categorized as poor, intermediate or ideal cardiovascular health as per CANHEART criteria. RESULTS: We included n = 102 adults (35.4 ± 12.9 years, 46% female) and n = 88 youth (17.2 ±1.1 years, 41% female). Most individuals reported to be nonsmokers (88% youth vs 86% adults) and to consume ≥5 servings of fruit and vegetables per day (83% vs 85%, respectively). More adults than youth were overweight/obese (52% vs 22%, p < 0.001) though more adults than youth reported meeting age-specific physical activity guidelines (84% vs 55%, p < 0.001). According to CANHEART health index criteria, 32% of youth and 27% of adults were in ideal cardiovascular health. CONCLUSIONS: A low proportion of individuals with CHD are in ideal cardiovascular health, suggesting a need to promote healthy lifestyles during adolescence and throughout adulthood in these individuals.

Transition Intervention for Adolescents With Congenital Heart Disease.

BACKGROUND: There is little evidence regarding the efficacy of interventions to prepare adolescents with congenital heart disease (CHD) to enter adult care. OBJECTIVES: The goal of this study was to evaluate the impact of a nurse-led transition intervention on lapses between pediatric and adult care. METHODS: A cluster randomized clinical trial was conducted of a nurse-led transition intervention for 16- to 17-year-olds with moderate or complex CHD versus usual care. The intervention group received two 1-h individualized sessions targeting CHD education and self-management skills. The primary outcome was excess time to adult CHD care, defined as the interval between the final pediatric and first adult cardiology appointments, minus the recommended time interval, analyzed by using Cox proportional hazards regression accounting for clustering. Secondary outcomes included scores on the MyHeart CHD knowledge survey and the Transition Readiness Assessment Questionnaire. RESULTS: A total of 121 participants were randomized to receive the intervention (n = 58) or usual care (n = 63). At the recommended time of first adult appointment (excess time = 0), intervention participants were 1.8 times more likely to have their appointment within 1 month (95% confidence interval: 1.1 to 2.9; Cox regression, p = 0.018). This hazard increased with time; at an excess time of 6 months, intervention participants were 3.0 times more likely to have an appointment within 1 month (95% confidence interval: 1.1 to 8.3). The intervention group had higher scores at 1, 6, 12, and 18 months on the MyHeart knowledge survey (mixed models, p < 0.001) and the Transition Readiness Assessment Questionnaire self-management index (mixed models, p = 0.032). CONCLUSIONS: A nurse-led intervention reduced the likelihood of a delay in adult CHD care and improved CHD knowledge and self-management skills. (Congenital Heart Adolescents Participating in Transition Evaluation Research [CHAPTER 2]; NCT01723332).

Parent readiness for discharge from a tertiary care pediatric cardiology unit.

PURPOSE: This study aimed to measure parents' readiness for discharge from a pediatric cardiology/cardiac surgical inpatient unit. DESIGN AND METHODS: An observational study was conducted at a single tertiary care pediatric cardiac surgical program; parents received teaching from a discharge coordinator, bedside nurse, and, if needed, dietician and pharmacist. We surveyed parents/guardians on the day of discharge and 2 weeks later. RESULTS: We enrolled 181 participants, 53% with children <12 months of age. Length of hospital admission ranged from ≤7 days (54%) to >4 weeks (8%). The most common diagnoses were ventricular septal defect (n = 39), atrial septal defect (n = 28), and coarctation of the aorta (n = 20). Home enteral feeding was required for 21 (12%) children, and 167 (92%) were discharged on medications. Nearly all parents (n = 173, 96%) felt they were ready to take their child home as planned. With respect to medical needs, problems to watch for, who and when to call, what their child was allowed and not allowed to do, and knowledge about follow-up, >90% of respondents rated their knowledge 8+ (range 0-10). Only 68% of respondents rated their knowledge ≥8 regarding services available in their community. Twenty percent experienced challenges at home for which they felt unprepared. These included infection, pain, and gastrointestinal concerns. PRACTICAL IMPLICATIONS: Most parents felt ready for discharge following multidisciplinary teaching. Greater emphasis is needed on teaching families about services available in the community. Further study is required to determine which parents need additional support and education to avoid unanticipated challenges post discharge.

A cluster randomized trial of a transition intervention for adolescents with congenital heart disease: rationale and design of the CHAPTER 2 study.

BACKGROUND: The population of adolescents and young adults with congenital heart disease (CHD) is growing exponentially. These survivors are at risk of late cardiac complications and require lifelong cardiology care. However, there is a paucity of data on how to prepare adolescents to assume responsibility for their health and function within the adult health care system. Evidence-based transition strategies are required. METHODS: The Congenital Heart Adolescents Participating in Transition Evaluation Research (CHAPTER 2) Study is a two-site cluster randomized clinical trial designed to evaluate the efficacy of a nurse-led transition intervention for 16-17 year olds with moderate or complex CHD. The primary endpoint is excess time to adult CHD care, defined as the time interval between the final pediatric cardiology appointment and the first adult CHD appointment, minus the recommended time interval between these appointments. Secondary endpoints include the MyHeart score (CHD knowledge), Transition Readiness Assessment Questionnaire score, and need for catheter or surgical re-intervention. Participants are enrolled in clusters based on week of attendance in the pediatric cardiology clinic. The intervention consists of two one-hour individualized sessions between a cardiology nurse and study participant. Session One focuses on knowledge of the participant's CHD, review of their cardiac anatomy and prior interventions, and potential late cardiac complications. Session Two focuses on self-management and communication skills through review and discussion of videos and role-play. The study will recruit 120 participants. DISCUSSION: Many adolescents and young adults experience a gap in care predisposing them to late cardiac complications. The CHAPTER 2 Study will investigate the impact of a nurse-led transition intervention among adolescents with CHD. Fidelity of the intervention is a major focus and priority. This study will build on our experience by (i) enrolling at two tertiary care programs, (ii) including a self-management intervention component, and (iii) evaluating the impact of the intervention on time to ACHD care, a clinically relevant outcome. The results of this study will inform pediatric cardiology programs, patients and policy makers in judging whether a structured intervention program provides clinically meaningful outcomes for adolescents and young adults living with CHD. TRIAL REGISTRATION: ClinicalTrials.gov ID NCT01723332.

Does a PEEK Femoral TKA Implant Preserve Intact Femoral Surface Strains Compared With CoCr? A Preliminary Laboratory Study.

BACKGROUND: Both the material and geometry of a total knee arthroplasty (TKA) component influence the induced periprosthetic bone strain field. Strain, a measure of the local relative deformation in a structure, corresponds to the mechanical stimulus that governs bone remodeling and is therefore a useful in vitro biomechanical measure for assessing the response of bone to new implant designs and materials. A polyetheretherketone (PEEK) femoral implant has the potential to promote bone strains closer to that of natural bone as a result of its low elastic modulus compared with cobalt-chromium (CoCr). QUESTIONS/PURPOSES: In the present study, we used a Digital Image Correlation (DIC) technique to answer the following question: Does a PEEK TKA femoral component induce a more physiologically normal bone strain distribution than a CoCr component? To achieve this, a DIC test protocol was developed for periprosthetic bone strain assessment using an analog model; the protocol aimed to minimize errors in strain assessment through the selection of appropriate analysis parameters. METHODS: Three synthetic bone femurs were used in this experiment. One was implanted with a CoCr femoral component and one with a PEEK femoral component. The third (unimplanted) femur was intact and used as the physiological reference (control) model. All models were subjected to standing loads on the corresponding polyethylene (ultrahigh-molecular-weight polyethylene) tibial component, and speckle image data were acquired for surface strain analysis using DIC in six repeat tests. The strain in 16 regions of interest on the lateral surface of each of the implanted bone models was plotted for comparison with the corresponding strains in the intact case. A Wilcoxon signed-rank test was used to test for difference at the 5% significance level. RESULTS: Surface analog bone strain after CoCr implantation indicated strain shielding (R2 = 0.6178 with slope, ß = 0.4314) and was lower than the intact case (p = 0.014). The strain after implantation with the PEEK implant deviated less from the intact case (R2 = 0.7972 with slope ß = 0.939) with no difference (p = 0.231). CONCLUSIONS: The strain shielding observed with the contemporary CoCr implant, consistent with clinical bone mineral density change data reported by others, may be reduced by using a PEEK implant. CLINICAL RELEVANCE: This bone analog in vitro study suggests that a PEEK femoral component could transfer more physiologically normal bone strains with a potentially reduced stress shielding effect, which may improve long-term bone preservation. Additional studies including paired cadaver tests are necessary to test the hypothesis further.

Computer-aided auscultation of murmurs in children: evaluation of commercially available software.

BACKGROUND: Heart murmurs are common in children and may represent congenital or acquired cardiac pathology. Auscultation is challenging and many primary-care physicians lack the skill to differentiate innocent from pathologic murmurs. We sought to determine whether computer-aided auscultation (CardioscanTM) identifies which children require referral to a cardiologist. METHODS: We consecutively enrolled children aged between 0 and 17 years with a murmur, innocent or pathologic, being evaluated in a tertiary-care cardiology clinic. Children being evaluated for the first time and patients with known cardiac pathology were eligible. We excluded children who had undergone cardiac surgery previously or were unable to sit still for auscultation. CardioscanTM auscultation was performed in a quiet room with the subject in the supine position. The sensitivity and specificity of a potentially pathologic murmur designation by CardioscanTM - that is, requiring referral - was determined using echocardiography as the reference standard. RESULTS: We enrolled 126 subjects (44% female) with a median age of 1.7 years, with 93 (74%) having cardiac pathology. The sensitivity and specificity of a potentially pathologic murmur determination by CardioscanTM for identification of cardiac pathology were 83.9 and 30.3%, respectively, versus 75.0 and 71.4%, respectively, when limited to subjects with a heart rate of 50-120 beats per minute. The combination of a CardioscanTM potentially pathologic murmur designation or an abnormal electrocardiogram improved sensitivity to 93.5%, with no haemodynamically significant lesions missed. CONCLUSIONS: Sensitivity of CardioscanTM when interpreted in conjunction with an abnormal electrocardiogram was high, although specificity was poor. Re-evaluation of computer-aided auscultation will remain necessary as advances in this technology become available.

Psychosocial Maturity, Autonomy, and Transition Readiness among Young Adults with Congenital Heart Disease or a Heart Transplant.

OBJECTIVE: The population of young adults with congenital heart disease (CHD) or a heart transplant (HTx) is growing rapidly. These survivors require lifelong cardiology care and must assume self-management responsibilities with respect to their health. Accordingly, we sought to assess psychosocial maturity and validity of the Transition Readiness Assessment Questionnaire (TRAQ) in this population. DESIGN: The study was designed as a cross-sectional observational study. SETTING: The study was set at tertiary-care pediatric and adult cardiology clinics in Edmonton and Toronto, Canada. PATIENTS: The patients were 18- to 25-year-olds with moderate or complex CHD or a HTx in childhood. OUTCOME MEASURES: Participants completed validated instruments including the TRAQ, Erickson's Psychosocial Stage Inventory (EPSI), and Kenny's Parental Attachment Questionnaire (PAQ). RESULTS: We enrolled 188 participants (41% women), 109 (58%) having moderate CHD, 64 (34%) complex CHD, and 15 (8%) with a HTx. Mean age for those followed in a pediatric clinic was 21.3 ± 2.3 years, compared with 21.8 ± 2.3 years for those attending an adult clinic (P = 0.20). All questionnaire scores were similar among participants with moderate CHD vs. complex CHD vs. an HTx, and among participants followed in a pediatric clinic vs. an adult clinic. EPSI and PAQ scores were similar to those of healthy populations, though perception of maternal overprotection was common. TRAQ scores increased with age. A response of "not needed for my care" to 5 or more of the 29 TRAQ items was provided by 110 (75%) participants. CONCLUSIONS: Age, but not disease severity should be a factor when considering the transition needs of young adults with heart disease. The TRAQ has important limitations in the adult CHD/HTx population and a cardiac-specific measure of transition readiness is needed.

Antibiotic prophylaxis for infective endocarditis: Knowledge and implementation of American Heart Association Guidelines among dentists and dental hygienists in Alberta, Canada.

BACKGROUND: Knowledge and interpretation of the 2007 American Heart Association (AHA) guidelines regarding infective endocarditis (IE) prophylaxis among the dental community is not well established. The authors' aim was to determine how dentists and dental hygienists interpret the 2007 AHA guidelines. METHODS: The authors sent a cross-sectional survey to a random sample of 450 dental hygienists and 450 dentists in Alberta, Canada. The survey ascertained whether the practitioner would recommend IE prophylaxis to a high-risk cardiac patient undergoing a variety of dental procedures and for a variety of cardiac lesions in patients requiring gingival manipulation. RESULTS: One hundred forty-nine hygienists (33%) and 194 dentists (43%) completed the survey. Use of prophylaxis for specific dental procedures was heterogeneous; 43% of hygienists recommended prophylaxis for polishing, 46% did not, and 11% replied "sometimes." Hygienists were more likely than dentists to inappropriately recommend IE prophylaxis for low-risk lesions including mitral valve prolapse (54% of hygienists versus 42% of dentists recommending prophylaxis; P = .037) and hypertrophic cardiomyopathy (23% versus 15%; P = .057). The authors also observed a failure to recommend IE prophylaxis for high-risk lesions, including mechanical valve (that is, 81% of hygienists and 91% of dentists recommending prophylaxis; P = .008). CONCLUSIONS: There is heterogeneity within the dental community with respect to IE prophylaxis. Dental hygienists are more likely than dentists to recommend IE prophylaxis for low-risk cardiac lesions. Both dentists and hygienists did not consistently recommend prophylaxis for all high-risk cardiac lesions. PRACTICAL IMPLICATIONS: Greater emphasis on IE prophylaxis education is required in training programs and continuing professional development.

Healthcare transition for youth with heart disease: a clinical trial.

OBJECTIVES: Adolescents with heart disease have complex health needs and require lifelong cardiology follow-up. Interventions to facilitate paediatric to adult healthcare transition are recommended, although outcomes are unknown. We sought to determine the impact of a transition intervention on improving knowledge and self-management skills among this population. METHODS: We conducted a clinical trial of 15-17 year olds with moderate or complex congenital heart disease (CHD) or cardiomyopathy. Participants were systematically allocated to either usual care (controls) or a 1 h nurse-led one-on-one teaching session about their heart. Allocation was determined by week of attendance in the cardiology clinic. The primary outcome was change in Transition Readiness Assessment Questionnaire (TRAQ) score at 6 months, possible scores ranging from 1 (low) to 5 (optimal). Cardiac knowledge (MyHeart score, range 0-100) was a secondary outcome. Analysis was intention to treat. RESULTS: Of 58 participants (48% female), 52 had CHD and 6 had cardiomyopathy. 27 were allocated to the intervention group; 3 declined the intervention and received usual care. When comparing the intervention group with the usual care group at 6 months postintervention, the mean self-management TRAQ score was 3.59 (±0.83) vs. 3.16 (±1.05), respectively (p=0.048, adjusted for baseline score); the mean self-advocacy TRAQ score was 4.38 (±0.56) vs. 4.01 (±0.95) (p=0.18) and the mean MyHeart score was 75% (±15) vs. 61% (±25) (p=0.019). CONCLUSIONS: A 1 h nurse-led transition intervention resulted in a significant improvement in self-management and cardiac knowledge scores. An educational intervention should be routine for youth with congenital or acquired heart disease. TRIAL REGISTRATION NUMBER: NCT01286480.

Audiologic and surgical outcomes of a novel, nonpercutaneous, bone conducting hearing implant.

OBJECTIVE: To assess the selection criteria, surgical technique, audiologic, and quality of life outcomes for a novel, nonpercutaneous bone conductor hearing aid. STUDY DESIGN: Retrospective case review. SETTING: Secondary otology practice. PATIENTS: Eighteen patients (16 adults and 2 children). INTERVENTION: Implantation of unilateral (n = 16) or bilateral (n = 2) devices. MAIN OUTCOME MEASURES: Mean preoperative and postoperative air conduction and bone conduction free-field testing, BKB-SIN aided and unaided at 0-degree 70 dB SPL, Speech, Spatial, and Qualities of Hearing Scale (SSQ), aided and unaided measures of localization and discrimination in single-sided deafness (SSD), surgical complications. RESULTS: Implants have been fixed under general or local anesthesia without perioperative complications. Two patients noted minor skin irritation only. Audiologic gain was greatest for those with bilateral conductive loss (21.9 ± 10.4 dB HL). For those with bilateral and unilateral mixed loss, gain was 6.2 ± 5.3 dB HL and 5.5 ± 6.5 dB HL, respectively. A greater improvement was seen with BKB-SIN at 70 dB SPL at 0 with all groups except for SSD, gaining statistically significant benefit. Localization and discrimination studies in patients with SSD or unilateral conductive loss failed to detect benefit from aiding. SSQ scores show an improvement in all domains for each patient group. CONCLUSION: The surgical procedure requires no specialized equipment and can be performed as a day case. This device complements treatment for patients requiring bone conduction aids and presents as an alternative to conventional percutaneous bone-anchored implants.

A systematic review of the pharmacological management of aortic root dilation in Marfan syndrome.

BACKGROUND: Marfan syndrome causes aortic dilation leading to dissection and death. This systematic review examined the use of beta-blockers, angiotensin-converting enzyme inhibitors, and angiotensin II receptor blockers in the management of aortic dilation in this disease. METHODS: We searched four databases--Medline, EMBASE, Web of Science, and The Cochrane Central Register of Controlled Trials--two conference proceedings, references of retrieved articles, and a web-based trial registry. The primary outcome was mortality. The secondary outcomes were aortic dissection, need for elective surgical repair, change in aortic dilation, and adverse events. Two reviewers selected studies, abstracted data, and assessed study quality. Meta-analyses were not performed because of study heterogeneity. RESULTS: A total of 18 studies were included--12 completed and six in progress. Of the completed studies, three before-and-after treatment, one prospective cohort, three retrospective cohorts, and two randomised control trials examined beta-blockers; one randomised and one non-randomised trial examined angiotensin-converting enzyme inhibitors; and one retrospective cohort study examined angiotensin II receptor blockers. Studies in progress are all randomised trials. Mortality was not impacted by drug therapy, although studies were underpowered with respect to this outcome. All drug classes were associated with a decrease in the rate of aortic dilation (angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers >beta-blockers); none had an impact on other secondary outcomes. CONCLUSIONS: On the basis of existing evidence, beta-blockers, angiotensin-converting enzyme inhibitors, and angiotensin II receptor blockers slow the progression of aortic dilation in Marfan syndrome. Angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers may have more effect than beta-blockers; however, more methodologically rigorous studies currently in progress are needed to evaluate the impact of drug therapy on clinical outcomes.

Risk factors for loss to follow-up among children and young adults with congenital heart disease.

OBJECTIVE: To identify risk factors for loss to cardiology follow-up among children and young adults with congenital heart disease. METHODS: We used a matched case-control design. Cases were born before January, 2001 with moderate or complex congenital heart disease and were previously followed up in the paediatric or adult cardiology clinic, but not seen for 3 years or longer. Controls had been seen within 3 years. Controls were matched 3:1 to cases by year of birth and congenital heart disease lesion. Medical records were reviewed for potential risk factors for loss to follow-up. A subset of cases and controls participated in recorded telephone interviews. RESULTS: A total of 74 cases (66% male) were compared with 222 controls (61% male). A history of missed cardiology appointments was predictive of loss to follow-up for 3 years or longer (odds ratio 13.0, 95% confidence interval 3.3-51.7). Variables protective from loss to follow-up were higher family income (odds ratio 0.87 per $10,000 increase, 0.77-0.98), cardiac catheterisation within 5 years (odds ratio 0.2, 95% confidence interval 0.1-0.6), and chart documentation of the need for cardiology follow-up (odds ratio 0.4, 95% confidence interval 0.2-0.8). Cases lacked awareness of the importance of follow-up and identified primary care physicians as their primary source of information about the heart, rather than cardiologists. Unlike cases, controls had methods to remember appointments. CONCLUSIONS: A history of one or more missed cardiology appointments predicted loss to follow-up for 3 or more years, as did lack of awareness of the need for follow-up. Higher family income, recent catheterisations, and medical record documentation of the need for follow-up were protective.