Improvement in Aortic Valve Area in Patients With Aortic Stenosis Through Use of a New "Hourglass-Shaped" Valvuloplasty Balloon.

CONCLUSIONS: Use of the hourglass-shaped balloons provided larger AVA, as compared with use of cylindrical balloons. Use of the novel balloons was not associated with an increase in AI, PPM, or major adverse events. PMID: 29207363 [PubMed - in process]
Source: The Journal of Invasive Cardiology - Category: Cardiology Tags: J Invasive Cardiol Source Type: research

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Authors: Serruys PW, Modolo R, Reardon M, Miyazaki Y, Windecker S, Popma J, Chang Y, Kleiman NS, Lilly S, Amrane H, Boonstra PW, Kappetein AP, Onuma Y, Sondegaard L, van Mieghem N Abstract AIMS: The indication for transcatheter valve implantation (TAVI) has evolved from inoperable patients to patients at increased surgical risk. In low risk patients, surgical aortic valve replacement (SAVR) remains the standard of care. To explore the outcomes of TAVI and SAVR in patients with a Society of Thoracic Surgery (STS) predicted risk of mortality (PROM) score below 3% in the SURTAVI trial. METHODS AND RESULTS: In SURT...
Source: EuroIntervention - Category: Cardiovascular & Thoracic Surgery Tags: EuroIntervention Source Type: research
ConclusionsIn our patient cohort, 9.5% of patients who underwent TAVR had concomitant aortic aneurysms. Patients with aortic aneurysms had similar incidence of vascular complications as well as in-hospital and 6-month MACE compared to those without.
Source: Indian Heart Journal - Category: Cardiology Source Type: research
This study proposes an assistive technology to quantify regurgitation using the regurgitation fraction (RF) and heart pump efficiency (HPE). In signal preprocessing stage, the detrending and zero-crossing processes are used to remove the unwanted flow fluctuations and identify the end-systolic and end-diastolic periods per each cardiac cycle. The fractional-order integrations are employed to calculate the stroke volume (SV) and regurgitation volume (RV). Then, the regurgitation flow can be quantified that indicates the high correlation with HPE. For a mimicking pulmonary circulation loop system, the proposed screening mode...
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research
AbstractWith the advent of transcatheter aortic valve replacement (TAVR), appropriately selected intermediate-, high-, and extreme-risk patients with severe aortic stenosis (AS) are now offered a less invasive option compared to conventional surgery. In contemporary practice, TAVR is performed predominantly via a transfemoral arterial approach, whereby a transcatheter heart valve (THV) is delivered in a retrograde fashion through the iliofemoral arterial system and thoraco-abdominal aorta, into the native aortic valve annulus. While the majority of patients possess suitable anatomy for transfemoral arterial access, there i...
Source: Current Treatment Options in Cardiovascular Medicine - Category: Cardiology Source Type: research
AbstractAortic stenosis (AS) is the most common valvular disease in the elderly and is associated with poor outcomes. Transcatheter aortic valve replacement (TAVR) is an alternative to surgical aortic valve replacement (SAVR) in high-risk patients. Herein, we describe the gender-related differences in baseline characteristics and pathophysiologic response to severe AS, imaging considerations unique to females, and short- and long-term outcomes after TAVR. Women undergoing TAVR are older and frailer, have less cardiovascular comorbidities, smaller femoral artery size, better left ventricular systolic function, hypertrophied...
Source: Current Treatment Options in Cardiovascular Medicine - Category: Cardiology Source Type: research
Authors: Okura Y, Ishigaki S, Sakakibara S, Yumoto C, Hashitate M, Sekine C, Fujita T, Takayama T, Ozaki K, Sato N, Minamino T Abstract Aortic stenosis (AS) is a life-threatening comorbidity of cancer patients. Aortic valve replacement (AVR) should be considered for some cancer patients, but neither the characteristics nor prognosis under conservative therapy is well known.We searched our echocardiography log (years 2005-2014) for cancer patients with AS, and 92 patients (54% female) were included in the study. To compare the survival curves, 470 control patients without AS were selected from our cancer registry.Me...
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
Conclusion: In TAVR, AVPD with a small, nonocclusive balloon can be safely performed. By avoiding rapid pacing, this technique may be a valid alternative to traditional BAV. Whether or not the use of APVD without rapid pacing translates into less periprocedural complications needs to be assessed in future studies. PMID: 29854723 [PubMed - in process]
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
This study proposes an assistive technology to quantify regurgitation using the regurgitation fraction (RF) and heart pump efficiency (HPE). In signal preprocessing stage, the detrending and zero-crossing processes are used to remove the unwanted flow fluctuations and identify the end-systolic and end-diastolic periods per each cardiac cycle. The fractional-order integrations are employed to calculate the stroke volume (SV) and regurgitation volume (RV). Then, the regurgitation flow can be quantified that indicates the high correlation with HPE. For a mimicking pulmonary circulation loop system, the proposed screening mode...
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research
Valve Tech Roundup – Transcath heart valves getting safer, seeing expanded use   Abbott touts initial data from Portico TAVR study Abbott (NYSE:ABT) today released 30-day data from a study of its Portico transcatheter aortic valve replacement, touting excellent clinical outcomes and low rates of death, disabling stroke and paravalvular leak. The real-world, multicenter, prospective, single-arm Portico I study aimed to explore the safety and efficacy of the Portico valve with independent adjudication of clinical events and independent echocardiography core-lab analysis. Investigators in the study will follo...
Source: Mass Device - Category: Medical Devices Authors: Tags: Cardiac Implants Cardiovascular Clinical Trials Replacement Heart Valves Abbott Edwards Lifesciences Esaote Source Type: news
Conclusions Hemiarch replacement using DHCA with RCP does not increase the risk of operative complications compared to a normothermic, clamped-distal aortic anastomosis, and therefore its use should not be limited when planning complex multi-procedural reconstructions during elective ascending thoracic aortic replacement with concomitant cardiac surgery.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
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