Cardiovascular diseases are the leading cause of death in the Czech Republic. An increasing number of its inhabitants become cardiac patients who require a nursing intervention. Nursing in cardiology has an irreplaceable position in the cardiovascular care provision. The health care costs are rising, nursing has been undergoing many changes. Training of cardiology nurses gets changed, as well as the image and role of cardiology nurses in society. Cardiology nurses are much more independent, educated and organized. In cardiovascular facilities nursing care is being standardized and the quality of care is improving. In this thesis, focus is given to nursing in cardiology. In the introduction the issue of cardiovascular diseases is outlined, the major part is devoted to the concept of Czech nursing in cardiology. Individual stages of the system of care for cardiac patients in the Czech Republic and the status of cardiology nurses involved in the system are surveyed. Attention is also paid to the structure of cardiovascular facilities and expert companies in our country and abroad. The thesis has the title: Survey of continuity of care for cardiac patients in the Czech Republic with focus on nursing care. In total five goals, seven research questions and four hypotheses were stated. We surveyed the cardiology nurses´ attitude to lifelong learning, if they are building their own specific image, and if they ensure the continuity of care. Our objective was also to identify the role of nurses in education of cardiac patients and the level of cardiac patients´ knowledge. The research section is elaborated on the basis of a qualitative and quantitative investigation. The qualitative part was carried out by semi-structured interviews with cardiology nurses working in comprehensive cardiovascular centers. The quantitative part of the survey was conducted with patients of comprehensive cardiovascular centers. Seventy domestic and foreign sources of literature devoted not only to the issueof cardiovascular diseases were quoted. The research results are supposed to serve as a basis for coordinated efforts of all participating nurses and institutions to build a well-functioning and technically and economically efficient system of nursing care for cardiac patients in CR.

No description available.

<p><strong>BACKGROUND: </strong></p> <p>Emergency Department (ED) visit rates for patients with symptomatic, recent onset atrial fibrillation or atrial flutter (RAFF) are on the rise, which in turn has resulted in high hospital admission rates (38-45%). Optimal management strategies need to be developed for reducing hospital admission rates.</p> <p><strong>STUDY QUESTION:</strong></p> <p>The primary objective of this study is to evaluate the effectiveness of a clinical pathway for the management of low-risk RAFF patients in the ED. The hypothesis is that an evidence-based clinical pathway will help ED physicians better manage AF patients and reduce hospital admissions.</p> <p><strong>STUDY DESIGN:</strong></p> <p>A prospective, blinded, stratified, two-arm cluster-randomized trial will be conducted. The intervention is a clinical pathway for the management of RAFF.</p> <p><strong>PRIMARY AND SECONDARY OUTCOMES:</strong></p> <p>The primary outcome of this trial will be the proportion of low-risk, RAAF patients admitted to the hospital from the ED. Secondary outcomes will include a range of safety outcomes.</p> <p><strong>STATISTICAL CONSIDERATIONS:</strong></p> <p>An intention-to-treat analysis will be conducted at the individual level using proportions and means according to the variable in question with an alpha level of 0.05 and power of 0.80 for the primary outcome. The cRCT (assuming a 30% RRR) will be conducted over a two year time period. A total of 13 clusters and 3500 ED visits will be recruited to each intervention arm.</p> <p><strong>SUMMARY:</strong></p> <p>This thesis explores the methodological issues relevant to the design of a cRCT evaluating a clinical pathway in the management of acute onset, low risk AF patients presenting to the ED.</p> / Master of Science (MSc)

<p>Reduced kidney function around the time of surgery is an important risk factor for postoperative mortality. Despite this there is limited information on how reduced kidney function prior to surgery alters prognosis, what causes sudden decrements in kidney function after surgery (known as acute kidney injury), or how they might be avoided. The studies in this thesis inform these knowledge gaps. Chapter 2 describes the results of a post hoc analysis of the interaction between preoperative estimated glomerular filtration rate, a marker of kidney function, and postoperative cardiac troponin T, a marker of heart damage, for predicting 30-day mortality in a prospective cohort study of patients undergoing noncardiac surgery. Chapter 3 uses administrative and clinical data from a single centre to inform the risk of acute kidney injury after noncardiac surgery by concentrations of preoperative hemoglobin and change in postoperative hemoglobin. Chapter 4 uses the same data to determine a definition of intraoperative hypotension that is prognostic of acute kidney injury, myocardial injury and death. Chapter 5 describes a randomized controlled trial that compares a novel therapeutic procedure called remote ischemic preconditioning to a sham procedure in patients undergoing cardiac surgery.</p> / Doctor of Philosophy (PhD)

<p><strong>Background:</strong> Heart failure (HF) constitutes an important growing medical and economic problem with high prevalence and mortality. Prognosis assessment remains a challenge because of the dynamic nature of HF and the existence of some unexplained variation in outcomes. Our objective was to refine the process of prognostic assessment in current HF patients.</p> <p><strong>Methods:</strong> We conducted a systematic review to identify existing risk prediction models in ambulatory HF patients, a meta-analysis to identify mortality predictors in HF patients treated with an implantable cardioverter defibrillator (ICD), a retrospective cohort study to validate a new model, the HF Meta-Score, derived from the results of the meta-analysis and a cross-sectional and prospective cohort study to evaluate whether circulating progenitor cells (CPCs) are associated with functional capacity and mortality in ambulatory HF patients.</p> <p><strong>Results:</strong> We identified 20 risk prediction models in ambulatory HF patients; only five were externally validated showing limited discrimination and calibration. The two most validated models were derived from HF cohorts from the 1990s and reported limited performance in ICD patients. In a meta-analysis, we identified that age, baseline renal function, history of heart failure, chronic obstructive pulmonary disease, diabetes, peripheral vascular disease, left ventricular ejection fraction, NYHA class, atrial fibrillation, wide QRS and the occurrence of appropriate or inappropriate ICD shocks were independent mortality predictors. Some of these predictors were omitted in previously identified models. From the results of the meta-analysis, we developed the HF Meta-Score that showed better performance that an existing model. We observed that CPCs were independently associated with functional capacity and outcomes in ambulatory HF patients.</p> <p><strong>Conclusions:</strong> These results open many pathways to further refine the prognostic assessment in ambulatory HF patients. The HF Meta-Score is a promising score. The clinical utility of the HF Meta-Score and of the incorporation of new predictive factors, such as CPCs, needs to be tested.</p> / Doctor of Philosophy (PhD)

Spatio-temporal variation in activation rates during ventricular fibrillation (VF)provides insight into mechanisms of sustained re-entry during VF. This study had three objectives related to spatio-temporal dynamics in activation rates during VF. The first objective was to quantify spatio-temporal variability in activation rates,that is, in dominant frequencies, computed from epicardial electrograms recorded during VF in swine. Results showed that temporally and spatially, dominant frequencies variedas much as 20% of the mean dominant frequency, and the mean dominant frequencies increased during first 30 sec of VF. These results suggest that activation rates are nonstationary during VF. The second objective of the study was to develop a new stimulation protocol for quantifying restitution of action potential duration (APD) by independently controlling diastolic intervals (DI). A property of cardiac cells that determines spatio-temporal variability in dominant frequencies is restitution of APD, which relates APD to the previous DI. Independent control of DI permits explicit determination of the role of memory in restitution. Restitution functions quantified using mathematical models of activation and our stimulation protocol, showed significant hysteresis. That is, for adiastolic interval, the action potential durations were as much as 15% longer during periods when the DI were decreasing than when the DI were increasing. We verified the feasibility of implementing our protocol experimentally in isolated and perfused rat hearts with action potentials recorded using floating glass microelectrodes. The third objective of our study was to verify that spatio-temporal variability in dominant frequencies during VF could be modified using spatially distributed pacing strength stimuli. Simulated VF was induced in 400x400 and 400x800 matrices of cells. Electrical function of cells was simulated using the Luo-Rudy model. Stimulators were arranged in the matrices such that there were 5 rows of line stimulators. Results showed that it was possible to modify activations in almost 54% of the area and to modify spatio-temporal variability in activation during VF into a desired pattern by the use of synchronized pacing from multiple sites. These results support further exploration of distributed stimulation approach for potential improvements in defibrillation therapy.

Orientador: Simone Biagio Chiacchio / Resumo: A bubalinocultura tem assumido cada vez mais importância econômica devido às suas características zootécnicas como a rusticidade e melhor qualidade do leite para a fabricação de derivados lácteos quando comparada ao leite de vaca. A morte embrionária e fetal é um importante fator de diminuição da eficiência reprodutiva pois aumenta o intervalo entre partos e causa perdas econômicas pela diminuição da lactação. O eletrocardiograma materno-fetal permite a avaliação da frequência cardíaca fetal (FCF) e variabilidade da frequência cardíaca (VFC) mediante análise de indicadores da VFC (HR, RR, RMSSD, SDNN, LF, HF e a relação LF/HF). Foram avaliadas semanalmente nove búfalas e neonatos saudáveis da raça murrah, nos momentos -28, -21, -14, -7 dias antes do parto e nos dias 7, 14, 21 e 28 dias após o parto. Nas búfalas foi observada diferença significativa na frequência cardíaca na fase pré-parto e com diminuição gradual conforme proximidade do parto. Já os índices RMSSD e SDNN não apresentaram diferença significativa mas demonstraram predomínio parassimpático. O componente de baixa frequência (LF) apresentou aumento significativo na fase pré-parto e o componente de alta frequência (HF) apresentou diminuição significativa, compatível com predomínio simpático. Embora não significativa, a relação LF/HF apresentou aumento na fase pré-parto e equilíbrio vagal pós-parto. Já os bezerros apresentaram variação significativa na fase pré-parto, com aumento gradativo conforme a proximidade dest... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Bubalinoculture has become increasingly important economically due to its zootechnical characteristics such as the rusticity and better quality of milk for the manufacture of dairy products when compared to cow's milk. Embryonic and fetal death is an important factor in decreasing reproductive efficiency because it increases the interval between births and causes economic losses due to decreased lactation. The maternal-fetal electrocardiogram allows the assessment of fetal heart rate (HRF) and heart rate variability (HRV) by analyzing HRV indicators (HR, RR, RMSSD, SDNN, LF, HF and the LF / HF ratio). Nine murrah buffaloes and healthy newborns were evaluated weekly at -28, -21, -14, -7 days before delivery and at 7, 14, 21 and 28 days after delivery. In buffaloes, a significant difference in heart rate was observed in the pre-partum phase and with a gradual decrease as the childbirth approached. The RMSSD and SDNN indices did not present significant difference but showed a parasympathetic predominance. The low frequency component (LF) showed a significant increase in the prepartum phase and the high frequency component (HF) showed a significant decrease, compatible with sympathetic predominance. Although not significant, the LF / HF ratio showed an increase in the prepartum phase and postpartum vagal balance. Calves, on the other hand, presented significant variation in the pre-partum phase, with gradual increase according to its proximity, with subsequent postpartum fall. Th... (Complete abstract click electronic access below) / Mestre

Les techniques de traitement du signal numérique prennent une place grandissante en rythmologie clinique. Ces outils offrent de nouvelles perspectives d'amélioration de la détection d'anomalies rythmiques subtiles et d'interprétation des arythmies complexes. Notre travail se focalise sur l'apport des techniques de traitement du signal pour les arythmies ventri­culaires. Il s'intéresse à trois champs complémentaires: les signaux unidimensionnels (ECG et EGM), la cartographie non-invasive, et la cartographie invasive. Concernant les signaux unidimensionnels, nous proposons tout d'abord une méthodologie d'amélio­ration du rapport signal sur bruit des enregistrements ECG par des méthodes de moyennage et de gating respiratoire. Cette méthodologie offre des perspectives intéressantes pour [a détection de si­gnaux anormaux de faible amplitude et pour la mesure non-invasive de l'intervalle HV. Nous détaillons ensuite les liens entre signaux endocardiques et ECG en fibrillation ventriculaire (FV), en montrant notamment que les fréquences dominantes sont fortement corrélées et qu'une fragmentation endocardique se traduit sur l'ECG de surface par une chute de l'amplitude. Enfin, nous démontrons par une analyse fréquentielle de 63épisodes de FV le lien entre les caractéristiques de ces épisodes et les caractéristiques cliniques des patients qui en sont victimes. Notamment, la fréquence dominante est très corrélée à la cardiopathie sous jacente. Le mode et le site d'induc tion ont également un impact important sur l'arythmie, aussi bien sur les fréquences que le degré de fragmentation et la phase de l'ECG de surface. Concernant la cartographie non-invasive, nous présentons une comparaison de différentes méthodes de résolution en potentiel du problème inverse. Cette comparaison démontre que la méthodologie ECGi fait partie des meilleures approches évaluées. Nous proposons ensuite une étude de validation des cartes d'activation ventriculaires par ECGi dans un contexte clinique sur 55 patients. Cette étude retrouve une corrélation médiocre entre les cartes non-invasives et les cartes de référence. Les résultats sont hétérogènes, avec une bonne corrélation sur les rythmes avec QRS larges. Nous proposons ensuite quelques pistes d'amélioration de ces cartes d'activation, par une analyse nouvelle de la solution fondamentale ECGi qui s'intéresse au gradient et au laplacien du potentiel et par un post-traitement des potentiels reconstruits, en combinant une évaluation des délais entre points voisin avec une mesure locale de temps d'activation. Ces deux techniques permettent une amélioration significative de la qualité des cartes reconstruites. Concernant la cartographie invasive, nous nous intéressons aux domaines et aux techniques d'inter­ polation de mesures ponctuelles. Nous montrons l'importance de ces techniques sur le rendu final d'une carte d'activation. Nous utilisons ensuite une de ces méthodologies pour produire des cartes améliorées chez les pa­tients porteurs d'un syndrome de Brugada. Nous montrons qu'il existe chez ces patients des arguments cliniques en faveur d'un bloc partiel de conduction endo-épicardique prédominant au niveau de l'infundibulum et de la partie latérobasale du ventricule droit. Enfin, nous montrons à l'aide d'un modèle in silico les conséquences arythmogènes d'une telle dis­ sociation, qui se traduit par une inductibilité accrue lorsque le nombre de connexions fonctionnelles résiduelles diminue. Au TOTAL, notre travail utilise les techniques de traitement du signal pour différentes applications autour des arythmies ventriculaires. Nous proposons plusieurs innovations méthodologiques per­mettant d'extraire et de traiter de manière nouvelle le signal électrique cardiaque. Les techniques de cartographie non-invasives doivent encore être améliorées pour tenir toutes leurs promesses. L'élec­trocardiographie et la cartographie de contact pourront voir leur champ d'utilisation étendu par ces innovations. / Signal processing tools are increasingly present in the electrophysiologist' s daily practice. These tools have the potential to enhance the detection of small electrical anomalies, and to enable the analysis of complex arrhythmia. Our work focuses on ventricular arrhythmia, and more specifically on how signal processing tech­ niques can help usbetter understand these diseases. lt is made up of three parts,focusing on different topics: uni-dimensional signal analysis (ECG and endocardial electrograms), non-invasive mapping, and invasive contact mapping. Concerning uni-dimensional signal analysis, we first propose a method to enhance the signal to noise ratio of ECG recordings. We use a combination of signal averaging and respiration gating to achieve this goal, and offer interesting perspectives for the detection of abnormal low amplitude potentials and non-invasive measurement of the HV interval. We then analyze the relationship between endocardial and ECG signais during ventricular fibrilla­ tion (VF) episodes. We demonstrate that endocardial and ECG dominant frequencies are similar,and that higher endocardial fragmentation results in a drop of the waveform amplitude on the surface ECG. Finally, we demonstrate through frequency domain analysis of 63 VF episodes a clear correlation between VF characteristics and clinical factors. Dominant frequency is particularly useful to dis­ criminate between different underlying causal substrates. We also demonstrate that VF characteris­ tics depend on the induction mode and induction site, in terms of dominant frequency, amount of fragmentation and ECG phase. Concerning non-invasive mapping, we compare different potential-based inverse problem resolution techniques. ECGi appears as one of the most reliable techniques. A clinical validation study of non-invasive ventricular activation mapping using ECGi isthen carried­ out. Fifty-five patients were included for whom non-invasive maps are compared to contact maps. We show a very poor overall correlation between non-invasive and invasive maps. Results are het­ erogeneous, with good correlation in patients with wide QRS activation patterns. Wethen propose different techniques to improve non-invasive activation mapping. A first study uses the surface laplacian and the gradient of the inverse-computed potential as inputs to activation map­ ping. A second study combines estimated delays between neighboring points and local activation time estimates to create a more globally coherent solution. Both studies demonstrate a significant improvement of activation maps. Concerning contact mapping, we first give an overview of interpolation domains and techniques that can be used to provide dense activation maps from sparse measures. We illustrate the influence of these techniques on the clinician's ability to make a correct diagnosis. We then use one of these interpolation techniques to create epicardial activation maps in Brugada patients. We show that these patients harbor epicardial electrical activity compatible with partial endo-epicardial conduction block. This phenomenon predominates in the right ventricular lateral wall and outflow tract. Finally,using an in silico model, we demonstrate the arrhythmogenic potential of such a dissociation. lnducibility peaks as the number of residual functional connections between endo and epicardium falls. ÜVERALL, our work uses signal processing techniques for different applications conceming ven­ tricular arrhythmia. We propose different methodological innovations that allow us to record and process cardiac electrical activity with increasing precision. Further progress is still required before non-invasive mapping can live up to its promises. The proposed methodological innovations can extend the use of electrocardiography and invasive mapping.

As instituições hospitalares que prestam serviços às operadoras de planos de saúde investem na auditoria de contas visando à adequada remuneração do atendimento prestado. No momento da pré-análise das contas a equipe de auditoria realiza correções para fundamentar a cobrança dos procedimentos, evitar glosas e perdas de faturamento. Nesta perspectiva esta pesquisa objetivou verificar os itens componentes das contas dos pacientes internados, conferidos por enfermeiras, que mais receberam ajustes no momento da pré-análise; identificar o impacto dos ajustes no faturamento das contas analisadas pela equipe de auditoria (médicos e enfermeiras) do hospital após a pré-analise; calcular o faturamento que esta equipe consegue ajustar nas contas e identificar as glosas relacionadas aos itens por ela conferidos. Tratou-se de uma pesquisa exploratória, descritiva, retrospectiva, de abordagem quantitativa na modalidade de estudo de caso, desenvolvida no Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. Foram estudadas 2.613 contas pré-analisadas pela equipe de auditoria do InCor no período de janeiro a dezembro de 2011. O faturamento concentrou-se em 04 (62,9%) das 34 operadoras de planos de saúde credenciadas. Houve predominância da operadora A (27,6%), porém o maior valor médio obtido por conta referiu-se a operadora D com R$ 19.187,50. Os itens mais incluídos nas contas pelas enfermeiras foram gases (90,5%); materiais de internação (85%) e serviço de enfermagem (83,2%). Materiais de Hemodinâmica com média de R$ 1.055,90 (DP± 3.953,45); gases com média de R$ 707, 91 (DP± 843,95) e equipamentos com média de R$ 689, 42 (DP± 1145,20) constituíram os itens de maior impacto financeiro nesses ajustes. Os itens mais excluídos das contas referiram-se a medicamentos de internação (41,2%); equipamentos (28%) e serviços de enfermagem (17%). Em relação aos ajustes negativos os itens que tiveram maior impacto financeiro foram os materiais de Hemodinâmica com média de R$ 3.860,15 (DP± 15.220,80); medicamentos utilizados na Hemodinâmica com média de R$ 1.983,04 (DP± 8.324,42) e gases com média de R$ 1.048,51 (DP± 3.025,53). As enfermeiras incluíram R$ 1.877.168,64 e excluíram R$ 1.155.351,36 e os médicos incluíram R$ 563.927,46 e excluíram R$ 657.190,19. Caso não fosse realizada a pré-análise, haveria a perda de R$ 628.554,55 no faturamento. Dentre as contas analisadas 91,42% receberam ajustes, sendo 57,59% positivos, com média de R$ 1.340,75 (DP±2.502,93) e 33,83% negativos, com média de R$ 1.571,58 (DP± 5.990,51). O total de glosas dos itens analisados por enfermeiras ou por médicos, bem como em itens examinados por ambos, correspondeu em média a R$ 380,51 (DP±1.533,05). As glosas referentes aos itens conferidos por médicos perfizeram um total médio de R$ 311,94 (DP±646,86) e as glosas referentes aos itens conferidos por enfermeiras de R$ 255,84 (DP± 1.636,76). O excesso de ajustes evidenciou a deficiência e a falta de uniformidade dos registros da equipe de saúde. Considera-se que esta pesquisa representa a possibilidade de avanço no conhecimento acerca da auditoria de contas hospitalares à medida que investigou o processo de pré-análise realizado por enfermeiras e médicos auditores / Hospitals that provide services to health plan companies invest in the audit of accounts aiming to provide adequate remuneration of their service. The pre-analysis of accounts is when the audit team makes corrections to determine the foundations for billing the procedures, and to avoid disallowances and revenue losses. From that perspective, the objective of the present study was to identify the patient bill items that were most corrected after being submitted to pre-analysis; identify the impact of those corrections on the revenue of accounts that were analyzed by the hospitals audit team (physicians and nurses) after the pre-analysis; calculate the revenue that the referred team is able to correct, and identify the disallowances related to the items they checked. This exploratory, descriptive, retrospective case study was performed at the Heart Institute (InCor) of the University of São Paulo School of Medicine Clinics Hospital (HCFMUSP) using a quantitative approach. The study included a total of 2,613 accounts that had been pre-analyzed by the InCor audit team in the period spanning January to December of 2011. The revenue was concentrated in four (62.9%) of the 34 credited health plan companies. There was predominance by company A (27.6%), but the highest mean value per account was obtained by company D, with R$ 19,187.50. The items most often included in the accounts by the nurses were gauzes (90.5%); hospitalization materials (85%) and nursing care (83.2%). Hemodynamics materials, with a mean R$ 1,055.90 (SD± 3,953.45); gauzes, with a mean R$ 707.91 (SD± 843.95), and equipment, with a mean R$ 689.42 (SD± 1145.20) were the items with the strongest financial impact on the corrections. The items most often excluded from the accounts referred to hospitalization medications (41.2%); equipment (28%) and nursing care (17%). Regarding the negative changes, the items with the strongest financial impact were Hemodynamics materials, with a mean R$ 3,860.15 (SD± 15,220.80); medications used in Hemodynamics, with a mean R$ 1,983.04 (SD± 8,324.42), and gauzes, with a mean R$ 1,048.51 (SD± 3,025.53). Nurses included a total of R$ 1,877,168.64, and excluded R$ 1,155,351.36, while physicians included R$ 563,927.46 and excluded R$ 657,190.19. If the pre-analysis had not been performed, there would have been a revenue loss of R$ 628,554.55. Of all the accounts submitted to analysis, 91.42% were corrected, of which 57.59% were positive, with a mean R$ 1,340.75 (SD±2,502.93) and 33.83% were negative, with a mean R$ 1,571.58 (SD± 5,990.51). Regarding disallowances, the final sum considering the items analyzed by nurses, physicians or both corresponded to a mean R$ 380.51 (SD±1,533.05). The disallowances referring to the items analyzed by physicians added up to a mean total of R$ 311.94 (SD±646.86), and those referring to the items analyzed by nurses to R$ 255.84 (SD± 1,636.76). The excessive number of corrections showed the lack of uniformity in the records made by the health team. This study represents a possibility of knowledge advancement regarding the audit of hospital accounts as it investigated the pre-analysis process performed by nurses and physicians

BACKGROUND: It is well established that thoracic aortic aneurysms (TAA) and abdominal aortic aneurysms (AAA) have different risk factors, clinical features, and genetic influences. Differences between and amongst subtypes of TAAs have received less attention. Despite observations of divergent clinical outcomes between ascending thoracic aortic aneurysms (ATAAs) and descending thoracic aortic aneurysms (DTAAs), etiologic factors determining the anatomic distribution of these aneurysms are not well understood. METHODS: From 3,247 patients registered in an institutional Thoracic Aortic Center Database from July 1992 through August 2013, we identified 921 patients with full aortic dimensional imaging by CT or MRI scan with TAA > 3.5 cm and without evidence of aortic dissection (AoD). Patients were analyzed in three groups: isolated ATAA (n=677), isolated DTAA (n=97), and combined ATAA and DTAA (n=146). RESULTS: Patients with a DTAA, alone or with coexistent ATAA, had significantly more hypertension (80.6% vs. 61.8%, p<.001) and a higher burden of atherosclerotic disease ( 86.7% vs. 7.5%, p<.001) ) and were more likely to be female (59.3% vs. 29.5%, P<.001). Conversely, patients with isolated ATAA were significantly younger (average age 59.5 vs. 71, p<.001), and contained almost every case of overt genetically-triggered TAA. Patients with isolated DTAA were demographically indistinguishable from patients with combined ATAA and DTAA. In follow up, patients with isolated DTAA, or with ATAA and DTAA, experienced significantly more aortic events (aortic dissection/rupture) and had higher mortality than patients with isolated ATAA. CONCLUSIONS: Based on patient characteristics and outcomes, subtypes of TAA emerge. DTAA with or without associated ATAA or AAA appears to be a disease more highly associated with atherosclerosis, hypertension, and advanced age. In contrast, isolated ATAA appears to be a clinically distinct entity with a higher burden of genetically triggered disease. These data have important implications for familial screening recommendations for TAA.