Transcaval transcatheter aortic valve implantation in bicuspid aortic valve: A step-by-step procedural guidance

We report the case of a 78-year-old female with Sapien 3 transcatheter heart valve implantation in the transcaval approach. In this setting, we describe the step-by-step management and technique of the transcaval transcatheter aortic valve implantation. Keywords: bicuspid aortic valve; transcatheter aortic valve implantation (TAVI); transcaval TAV

Intraventricular Thrombus Formation and Embolism in Takotsubo Syndrome: Insights From the International Takotsubo Registry

OBJECTIVE Takotsubo syndrome (TTS) is characterized by acute left ventricular dysfunction, which can contribute to intraventricular thrombus and embolism. Still, prevalence and clinical impact of thrombus formation and embolic events on outcome of TTS patients remain unclear. This study aimed to investigate clinical features and outcomes of patients with and without intraventricular thrombus or embolism. Additionally, factors associated with thrombus formation or embolism, as well as predictors for mortality, were identified. Approach and Results: TTS patients enrolled in the International Takotsubo Registry at 28 centers in Australia, Europe, and the United States were dichotomized according to the occurrence/absence of intraventricular thrombus or embolism. Patients with intraventricular thrombus or embolism were defined as the ThrombEmb group. Of 1676 TTS patients, 56 (3.3%) patients developed intraventricular thrombus and/or embolism following TTS diagnosis (median time interval, 2.0 days [range, 0-38 days]). Patients in the ThrombEmb group had a different clinical profile including lower left ventricular ejection fraction, higher prevalence of the apical type, elevated levels of troponin and inflammatory markers, and higher prevalence of vascular disease. In a Firth bias-reduced penalized-likelihood logistic regression model apical type, left ventricular ejection fraction ≤30%, previous vascular disease, and a white blood cell count on admission >10×10$^{3}$ cells/μL emerged as independent predictors for thrombus formation or embolism. CONCLUSIONS Intraventricular thrombus or embolism occur in 3.3% of patients in the acute phase of TTS. A simple risk score including clinical parameters associated with intraventricular thrombus formation or embolism identifies patients at increased risk. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifier: NCT01947621

Inflammation in acute myocardial infarction: the good, the bad and the ugly.

Convergent experimental and clinical evidence have established the pathophysiological importance of pro-inflammatory pathways in coronary artery disease. Notably, the interest in treating inflammation in patients suffering acute myocardial infarction (AMI) is now expanding from its chronic aspects to the acute setting. Few large outcome trials have proven the benefits of anti-inflammatory therapies on cardiovascular outcomes by targeting the residual inflammatory risk (RIR), i.e. the smouldering ember of low-grade inflammation persisting in the late phase after AMI. However, these studies have also taught us about potential risks of anti-inflammatory therapy after AMI, particularly related to impaired host defence. Recently, numerous smaller-scale trials have addressed the concept of targeting a deleterious flare of excessive inflammation in the early phase after AMI. Targeting different pathways and implementing various treatment regimens, those trials have met with varied degrees of success. Promising results have come from those studies intervening early on the interleukin-1 and -6 pathways. Taking lessons from such past research may inform an optimized approach to target post-AMI inflammation, tailored to spare 'The Good' (repair and defence) while treating 'The Bad' (smouldering RIR) and capturing 'The Ugly' (flaming early burst of excess inflammation in the acute phase). Key constituents of such a strategy may read as follows: select patients with large pro-inflammatory burden (i.e. large AMI); initiate treatment early (e.g. ≤12 h post-AMI); implement a precisely targeted anti-inflammatory agent; follow through with a tapering treatment regimen. This approach warrants testing in rigorous clinical trials

Effectiveness of radiation protection systems in the cardiac catheterization laboratory: a comparative study

BACKGROUND As numbers and complexity of percutaneous coronary interventions are constantly increasing, optimal radiation protection is required to ensure operator safety. Suspended radiation protection systems (SRPS) and protective scatter-radiation absorbing drapes (PAD) are novel methods to mitigate fluoroscopic scattered radiation exposure. The aim of the study was to investigate the effectiveness regarding radiation protection of a SRPS and a PAD in comparison with conventional protection. METHODS A total of 229 cardiac catheterization procedures with SRPS (N = 73), PAD (N = 82) and standard radiation protection (N = 74) were prospectively included. Real-time dosimeter data were collected from the first operator and the assistant. Endpoints were the cumulative operator exposure relative to the dose area product [standardized operator exposure (SOE)] for the first operator and the assistant. RESULTS For the first operator, the SRPS and the PAD significantly decreased the overall SOE compared to conventional shielding by 93.9% and 66.4%, respectively (P < 0.001). The protective effect of the SRPS was significantly higher compared to the PAD (P < 0.001). For the assistant, the SRPS and the PAD provided a not statistically significant reduction compared to conventional shielding in the overall SOE by 38.0% and 30.6%, respectively. CONCLUSIONS The SRPS and the PAD enhance radiation protection significantly compared to conventional protection. In most clinical scenarios, the protective effect of SRPS is significantly higher than the additional protection provided by the PAD. Comparison of the additional radiation protection provided by protective scatter-radiation absorbing drapes (PAD) and the suspended radiation protection system (SRPS) system over standard protection with lead aprons

Coronary microvascular dysfunction in Takotsubo syndrome: an analysis using angiography-derived index of microcirculatory resistance

BACKGROUND Coronary microvascular dysfunction (CMD) has been proposed as a crucial factor in the pathophysiology of Takotsubo syndrome (TTS). The angiography-derived index of microcirculatory resistance (caIMR) offers an alternative to conventional hyperemic wire-based IMR to assess CMD. We aimed to evaluate CMD's prevalence, transience, and impact on in-hospital outcomes in TTS. METHODS All three coronary arteries of 96 patients with TTS were assessed for their coronary angiography derived Index of microcirculatory Resistance (caIMR) and compared to non-obstructed vessels of matched patients with ST-elevation myocardial infarction. Further, the association between caIMR and the TTS-specific combined in-hospital endpoint of death, cardiac arrest, ventricular arrhythmogenic events and cardiogenic shock was investigated. RESULTS Elevated IMR was present in all TTS patients, with significantly elevated caIMR values in all coronary arteries compared to controls. CaIMR did not differ between apical and midventricular TTS types. CaIMR normalized in TTS patients with follow-up angiographies performed at a median of 28 months (median caIMR at event vs follow-up: LAD 34.8 [29.9-41.1] vs 20.3 [16.0-25.3], p < 0.001; LCX: 38.7 [32.9-50.1] vs 23.7 [19.4-30.5], p < 0.001; RCA: 31.7 [25.0-39.1] vs 19.6 [17.1-24.0], p < 0.001). The extent of caIMR elevation significantly correlated with the combined in-hospital endpoint (p = 0.036). CONCLUSION TTS patients had evidence of elevated caIMR in at least one coronary artery with a trend towards higher LAD caIMR in apical type TTS and normalization after recovery. Furthermore, extent of caIMR elevation was associated with increased risk of in-hospital MACE of TTS patients

Novel Mechanisms on the Pathophysiology of Venous Ulcers TRANSLATIONAL MEDICINE: FROM BENCHTOP TO BEDSIDE TO COMMUNITY AND BACK

Background: Venous ulcers are a manifestation of chronic venous disorders (CVD). Superficial venous reflux and deep vein obstruction are the most common cause of CVD. The Problem: Venous ulcers are associated with pain and decreased dorsiflexion. Walking intensity is lower, standing reduced, and sitting is often prolonged. Either initiating advanced venous disease or, as a result, gait abnormalities are present. Peripheral neuropathies may be a cofactor in the development of venous ulcers. Basic/Clinical Science Advances: Recent advances include research on venous surgeries to decrease symptoms and aid ulcer healing; medications to decrease inflammation of venous disease; development of a symptoms diagnostic score; examination of CVD manifestations such as hemosiderin and telangiectasia; neuropathy with CVD; and renewed importance of arterial, nutrition, and psychological assessment. Persons who injected illicit drugs may serve as a model to study CVD/venous ulcers. Injection drug use intensifies typical CVD risk factors from vascular, nerve, and muscle damage from injecting and infections, unknown substances in the injected mixture, trauma, and deep vein thrombosis. Leg injecting has a direct effect on CVD and an indirect effect on ankle and walking mobility through CVD. Clinical Care Relevance: Treatment is aimed at preventing venous hypertension and reflux, decreasing inflammation to alleviate symptoms, reducing risk of ulceration, reducing pain, and enhancing quality of life. This includes programs of activity/exercises, appropriate wound dressing, venous surgery, pain management, arterial flow assessment, and psychosocial assessment. Conclusion: Venous disease is associated with many physical and psychosocial problems. Continued medical, surgical, and basic research holds promise for the best strategies for providing care

A Descriptive Study Using an Intercept Survey: Knowledge, Attitudes, Beliefs, and Behaviors About Systemic Antibiotic Use in Adults Who Reported a Wound Within the Previous Year

PURPOSE: This project examined knowledge, attitudes, beliefs, and behaviors about systemic antibiotic use for persons who reported a wound within the previous year. DESIGN: Secondary data analyses of 505 adults from a cross-sectional, prospective, intercept survey where every fifth adult was randomly approached to participate. SUBJECTS AND SETTING: Twenty-six participants (5.15% of the parent sample) stated having a wound within the previous year. METHODS: Participants were interviewed using the Facilitators and Barriers to Consumer Use of Antibiotics questionnaire that included demographics, health, information sources, antibiotic knowledge, attitudes, beliefs, and behavior questions. Hierarchical agglomerative cluster analysis was used to find clusters of items on the attitude, beliefs, and behavior questions. RESULTS: Sample demographics included 15 women and 11 African Americans, and 17 had some college education. Knowledge about antibiotics had a mean correct score of 10 out of 15 (67%) questions. Higher antibiotic knowledge was significantly related to higher education (rs = 0.69, P \u3c .001). There were 2 attitude and beliefs clusters: most participants (\u3e85%) recognized the need for medical supervision of antibiotic use (cluster 1), and beliefs about the need for antibiotics to prevent illness or treat wounds varied in 27% to 62% of participants (cluster 2). There were 4 behavior clusters: almost all participants 96% (cluster 1) filled and took the antibiotic if prescribed; greater than 71% (cluster 2) disagreed with unapproved methods of obtaining antibiotics; greater than 87% (cluster 3) used prescribed antibiotics correctly; and 36% of participants heard about antibiotic resistance through television or radio or Internet (40%) (cluster 4). CONCLUSIONS: Knowledge about antibiotics was low, while attitudes were positive. These findings support the need for research and evidence-based information on the role of antibiotics in wound care