165 research outputs found
Ursinus College Bulletin, Spring 1984
Donald Lawrence Helfferich, 1898-1984 ⢠Past and presence of Zacharias Ursinus ⢠What were they fighting about? ⢠Heidelberg Catechism ⢠Today\u27s clergy take Reformation seriously ⢠A Homecoming for winners ⢠November 6: A Founders Day with a difference ⢠Striving for excellence: The life of the mind ⢠Ursinus\u27 Olympic 6 are L.A. bound ⢠UC teams victorious ⢠College names Vice Presidents ⢠Acupressuring your stress away ⢠Doctor of Ministry offered at Ursinus ⢠Professor Parsons on TV ⢠New perspectives in health care ⢠Full schedule planned for alumni weekend ⢠New Reagan books ⢠ACS Chapter given high rating ⢠Books delayed ⢠News notes ⢠Evening School ⢠Marriages ⢠Births ⢠Deaths ⢠An heir to the zone ⢠Spring sports schedulehttps://digitalcommons.ursinus.edu/new_bulletin/1037/thumbnail.jp
Actor roles in transition: Insights from sociological perspectives
AbstractTo date, the field of transition research lacks a suitable vocabulary to analyse the (changing) interactions and relations of actors as part of a sustainability transition. This article addresses this knowledge gap by exploring the potential of the concept of ârolesâ from social interaction research. The role concept is operationalized for transition research to allow the analysis of (changing) roles and relations between actor roles as indicative of changes in the social fabric and shared values, norms and beliefs. It also allows considering the use of roles as a transition governance intervention. This includes creating new roles, breaking down or altering existing ones and explicitly negotiating or purposefully assigning roles, as well as the flexible use of roles as resources
Transaortic transcatheter aortic valve implantation - rationale and design of the multicenter, multinational prospective ROUTE registry
Transaortic transcatheter aortic valve implantation (TAo-TAVI) is a recently developed approach that provides an alternative delivery route for valve replacement in patients with vascular abnormalities or existing comorbidities. While initial studies have shown the principal efficacy and safety, the real world effectiveness and safety of this approach remains to be fully assessed. In this regard, the Registry Of the Utilization of the TAo-TAVI approach using the Edwards SAPIEN Valve (ROUTE) represents the first multicenter, multinational prospective documentation of the course and outcome of patients with severe calcific aortic stenosis (AS) undergoing TAo-TAVI. ROUTE commenced in February 2013 with the goal of consecutively enrolling 300 patients at up to 22 sites across Europe. The primary objective of ROUTE is to determine the 30-day mortality associated with TAo-TAVI using the Edwards SAPIEN THV (Edwards Lifesciences, Irvine, CA). In addition, ROUTE aims to quantify complications, predictors of patient outcome and the value of CT guided valve sizing. Findings from this landmark registry will provide important information regarding procedural success rates and early mortality in patients undergoing TAo-TAVI. Identifier: NCT0199143
Aortic valve replacement: validation of the Toronto Aortic Stenosis Quality of Life Questionnaire
Reemplaçament de la và lvula aòrtica; Qualitat de vida; QßestionariReemplazo de la vålvula aórtica; Calidad de vida; CuestionarioAortic valve replacement; Quality of life; QuestionnaireAims
There is no quality of life tool specifically developed for patients with severe aortic stenosis (AS) to assess how this chronic condition and its treatment affect patients. The Toronto Aortic Stenosis Quality of Life Questionnaire (TASQ) has been developed to overcome this gap. The results of the validation of the TASQ in patients undergoing treatment for severe AS are presented.
Methods and results
Prospective study at 10 centres in Europe and Canada, which enrolled 274 patients with severe symptomatic AS undergoing surgical or transcatheter aortic valve replacement. Mean TASQ score at baseline was 71.2 points and increased to 88.9 three months after aortic valve implantation (P < 0.001). Increases were seen for the emotional impact (32.0 to 39.0; P < 0.001), physical limitations (14.8 to 22.0; P < 0.001), and physical symptoms (8.5 vs. 11.0; P < 0.001) domains. Internal consistency was good/excellent for overall TASQ score (Îą = 0.891) and for the physical limitation, emotional impact, and social limitation domains (Îą = 0.815â0.950). Testâretest reliability was excellent or strong for the overall TASQ (intraclass correlation coefficient of 0.883) and for the physical symptoms, physical limitation, emotional impact, and social limitation domains (intraclass correlation coefficient of 0.791â0.895). Responsiveness was medium overall (Cohen's d = 0.637) and medium/large for physical symptoms, emotional impact, and physical limitations (0.661â0.812). Sensitivity to change was significant for physical symptoms, physical limitations (both P < 0.001), emotional impact (P = 0.003), and social limitations (P = 0.038).
Conclusions
The TASQ is a new, brief, selfâadministered, and clinically relevant healthâspecific tool to measure changes in quality of life in patients with AS undergoing an intervention.This work was supported by a research grant provided by Edwards Lifesciences (Nyon, Switzerland) to the Institute for Pharmacology and Preventive Medicine (Cloppenburg, Germany)
Procedural outcomes in patients with dual versus single antiplatelet therapy prior to transcatheter aortic valve replacement
The impact of uninterrupted dual antiplatelet therapy (DAPT) on bleeding events among patients undergoing transcatheter aortic valve replacement (TAVR) has not been well studied. We conducted an analysis of 529 patients who underwent transfemoral TAVR in our centre and were receiving either DAPT or single antiplatelet therapy (SAPT) prior to the procedure. Accordingly, patients were grouped into a DAPT or SAPT group. Following current guidelines, patients in the SAPT group were switched to DAPT for 90 days after the procedure. The primary endpoint of our analysis was the incidence of bleeding events at 30 days according to the VARC-2 classification system. Any VARC-2 bleeding complications were found in 153 patients (28.9%), while major/life-threatening or disabling bleeding events occurred in 60 patients (11.3%). Our study revealed no significant difference between the DAPT vs. SAPT group regarding periprocedural bleeding complications. Based on multivariable analyses, major bleeding (HR 4.59, 95% CI 1.64-12.83, pâ=â0.004) and life-threatening/disabling bleeding (HR 8.66, 95% CI 3.31-22.65, pâ<â0.001) events were significantly associated with mortality at 90 days after TAVR. Both pre-existing DAPT and SAPT showed a comparable safety profile regarding periprocedural bleeding complications and mortality at 90 days. Thus, DAPT can be safely continued in patients undergoing transfemoral TAVR
Trial protocol for the validation of the 'Toronto Aortic Stenosis Quality of Life (TASQ) Questionnaire' in patients undergoing surgical aortic valve replacement (SAVR) or transfemoral (TF) transcatheter aortic valve implantation (TAVI): the TASQ registry
Aortic stenosis; Aortic valve replacement; Quality of lifeEstenosi aòrtica; Reemplaçament de la và lvula aòrtica; Qualitat de vidaEstenosis aórtica; Reemplazo de la vålvula aórtica; Calidad de vidaPatients with severe aortic stenosis (AS) have a reduced life expectancy and quality of life (QoL), owing to advanced age and the presence of multiple comorbidities. Currently, there is no AS-specific QoL measurement tool, which prevents an accurate assessment of how this chronic condition and its treatment affect patients. The Toronto Aortic Stenosis Quality of Life Questionnaire (TASQ) was developed in order to address this deficiency.
METHODS:
The present trial protocol was designed to enable validation of the TASQ, which has been produced in five languages (English, French, German, Italian and Spanish) to increase usability. Patients with severe AS who are undergoing surgical aortic valve replacement (SAVR) or transcatheter aortic valve implantation (TAVI) will be asked to complete the TASQ and, for comparative purposes, the Kansas City Cardiomyopathy Questionnaire and the general health-related QoL Short Form-12 questionnaire. The questionnaires will be completed prior to the intervention, at discharge, as well as at 30 days and 3 months follow-up. A total of 290 patients will be recruited across one Canadian and nine European centres. Overall, the protocol validation aims to include 120 patients undergoing transfemoral TAVI (TF-TAVI), 120 undergoing SAVR and up to 50 being treated medically. The primary objective of the registry is to validate the TASQ in five different languages. The secondary objective is to assess the utility of the TASQ for assessing differences in QoL outcome between patients undergoing TF-TAVI, SAVR or medical management for their AS.
DISCUSSION:
Validation and roll-out of the TASQ will enable clinicians to capture an accurate assessment of how AS and its management affects the QoL of patients and will help them to determine the most appropriate treatment strategy for individual patients.A research grant provided by Edwards Lifesciences (Nyon, Switzerland) to the Institute for Pharmacology and Preventive Medicine (Cloppenburg, Germany)
Transcatheter aortic valve resection: new mechanical devices
Background To improve periprocedural outcomes of transcatheter aortic valve implantation (TAVI), transcatheter mechanical resection devices were tested for prior ablation of the aortic cusps. Methods Three mechanical transcatheter resection devices were tested in a series of native porcine (n=30) and reassembled calcified human valves (n=54). The resection time, the resected valve area, the number of released cusps, and the degree of surrounding tissue damage were measured. Afterwards, postmortem transapical-transcatheter-resections of the aortic valve in two humans were performed. Results In the native porcine hearts, the Aesculap II device demonstrated significantly shorter resection time compared to the R&R II and the Randstad devices (6.5Âą2.0 vs. 28.6Âą24.1 vs. 23.3Âą14.4 sec; P=0.001). However, it created more lesions in the surrounding tissue (P=0.002). The R&R II achieved a smaller number of resected cusps than the other two devices (2.7Âą0.7 vs. 1.1Âą0.7 vs. 2.4Âą0.5; P<0.001, respectively). It also resected a smaller area of the aortic valve (306.5Âą149.2 vs. 106.7Âą29.6 vs. 256.8Âą81.3 mm2; P=0.09) but a larger mean area of the resected fragments (110.3Âą41.5 vs. 160.7Âą29.6 vs. 111.5Âą43.9 mm2; P=0.01). The resection of the reassembled human valves demonstrated the same results between the devices regarding resection time (P=0.001) and resected area (P=0.016), but not fragment sizes (P=0.610). Finally, transapical-transcatheter-resection of aortic valve was performed in two cadavers. Conclusions Transcatheter aortic valve resection is feasible with variable aortic leaflet resection times and mild risk of lesions of the surrounding tissue
Active Infective Native and Prosthetic Valve Endocarditis: Short- and Long-Term Outcomes of Patients after Surgical Treatment
BackgroundActive infective endocarditis (IE) is a serious disease associated with high mortality. The current study represents our experience over 18 years with surgical treatment for active infective native and prosthetic valve endocarditis (INVE, IPVE).MethodAnalysis of 413 patients (171 with IPVE vs. 242 with INVE) who underwent cardiac surgery due to IE between 2002 and 2020.ResultsPatients with IPVE were significantly older (64.9 Âą 13.2 years vs. 58.3 Âą 15.5 years; p < 0.001) with higher EuroSCORE II (21.2 (12.7; 41.8) vs. 6.9 (3.0; 17.0); p < 0.001)) and coronary heart disease (50.6% vs. 38.0%; p < 0.011). Preoperative embolization was significantly higher within INVE (35.5% vs. 16.4%; p < 0.001) with high incidence of cerebral embolization (18.6% vs. 7.6%; p = 0.001) and underwent emergency curative surgery than the IPVE group (19.6% vs. 10.6%; p < 0.001). However, patients with IPVE were significantly represented with intracardiac abscess (44.4% vs.15.7%; p < 0.001). Intraoperatively, the duration of surgery was expectedly significantly higher in the IPVE group (356 min vs. 244 min.; p = 0.001) as well as transfusion of blood (4 units (0-27) vs. 2 units (0-14); p < 0.001). Post-operatively, the incidence of bleeding was markedly higher within the IPVE group (700 mL (438; 1163) vs. 500 mL (250; 1075); p = 0.005). IPVE required significantly more permanent pacemakers (17.6% vs. 7.5%: p = 0.002). The 30-day mortality was higher in the IPVE group (24.6% vs. 13.2%; p < 0.003).ConclusionPatients with INVE suffered from a higher incidence of cerebral embolization and neurological deficits than patients with IPVE. Surgical treatment in INVE is performed mostly as an emergency indication. However, patients with IPVE were represented commonly with intracardiac abscess, and had a higher indication of pacemaker implantation. The short- and long-term mortality rate among those patients was still high
Building Cross-sectoral Collaborations to Address Perinatal Health Inequities:Insights From the Dutch Healthy Pregnancy 4 All-3 Program
BACKGROUND: Addressing perinatal health inequities is the joint responsibility of professionals working for local governments, the medical, social, and public health sector. Cross-sectoral collaboration between these professionals is challenging. For such collaborations to succeed, a transition, ie, a fundamental shift in the dominant structure, culture, and practices at the systems level, is necessary. We investigated facilitators and barriers for cross-sectoral collaborations, when addressing perinatal health inequities in the Netherlands. Additionally, we studied how cross-sectoral collaborations can be facilitated by action research. METHODS: We used interview and questionnaire data of the Healthy Pregnancy 4 All-3 (HP4All-3) program, which resulted from action research in six Dutch municipalities. All interviews were coded using open codes related to facilitators and barriers for cross-sectoral collaboration and categorized into three subgroups: structural, cultural, or practical. The answers to the questionnaire were analyzed and summarized quantitatively. RESULTS: We conducted 53 interviews with a total of 81 professionals. The most important ingredients for cross-sectoral collaborations mentioned by the interviewees were: (1) structural: having a solid network with a clear overview of professionals working in the different sectors, (2) cultural: having a joint vision/goal, and (3) practical: short lines of communication and timely sharing of information. A total of 85 professionals filled in (parts of) the questionnaire. Two-thirds to over 80 percent replied that the HP4All-3 program had an added value in building cross-sectoral collaborations. CONCLUSION: Our research shows that cross-sectoral collaborations in the context of perinatal health are hampered by structural, cultural, and practical barriers. Analyzing facilitators and barriers at these three levels helps to identify bottlenecks in cross-sectoral collaboration. Action researchers can be of great advantage in facilitating collaboration, as they can offer an open setting for reflection and instigate a sense of urgency for building collaborations.</p
Is total arch replacement associated with an increased risk after acute type A dissection?
Background The surgical strategy for acute type A aortic dissection (AADA) usually consists of reconstruction of the tear-lesion in the affected part of the ascending aorta. The optimal strategy either to replace the ascending aorta (AAR) or to replace the ascending aorta and the total aortic arch (TAAR) is still under debate. Our study compares the 30-day mortality between AAR and TAAR in AADA surgery. Results In 292 (86.1%) patients AAR and in 47 (13.9%) patients TAAR was performed for emergent AADA. Patients were older (P=0.049) in the AAR group. The median log Euro-SCORE was 25.5% (12.7; 41.7) for AAR and 19.7% (11.7; 32.2) for the TAAR patient cohort (P=0.12). Operative time, cardiopulmonary bypass- (CPB), cross-clamp- and ischemic time were significantly longer in the TAAR group (P<0.001). The overall 30-day mortality-rate was 17.7% (n=60) but was not significantly different between the two groups (P=0.27). Forty-nine (16.8%) patients died in the AAR and 11 patients (23.4%) in the TAAR group. After propensity-score matching, no difference in mortality was seen between the subgroups as well (P=0.44). Multivariable analysis identified the Euro-SCORE, long operation-time, postoperative dialysis and arrhythmia and administration of red blood cell concentrates as risk factors for 30-day mortality, but not for TAAR versus AAR. Conclusions The therapeutic goal in AADA surgery should be the complete restoration of the aorta to avoid further long-term complications and re-operations. Though 30-day mortality and postoperative co-morbidity for AAR are comparable to those in TAAR after treatment of AADA in our analysis, decision-making for the surgical strategy should weigh the operative risk of TAAR against the long-term outcome
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