Publications by authors named "Loes M Klieverik"
Objective: The study aims to report results of re-operations after aortic allograft root implantation.
Methods: All consecutive patients in our prospective allograft database, who underwent aortic allograft root implantation, were selected for analysis, and additional information for patients who subsequently underwent re-operation was obtained from hospital records.
Results: From 1989 to 2009, 262 aortic allograft root implantations were performed.
Background: Surgical intervention for persistent active native aortic valve endocarditis (NVE) remains challenging. We analyzed our combined experience with allografts and mechanical prostheses (MP) in NVE operations.
Methods: Between 1980 and 2002, 138 patients (81% males) underwent aortic valve replacement for NVE in 2 centers (106 allografts; 32 MPs).
Background: Reports on outcome after the Ross procedure are limited by small study size and show variable durability results. A systematic review of evidence on outcome after the Ross procedure may improve insight into outcome and potential determinants.
Methods And Results: A systematic review of reports published from January 2000 to January 2008 on outcome after the Ross procedure was undertaken.
Article Synopsis
- This study evaluated the long-term outcomes of a surgical procedure called vertical plication repair for patients with Ebstein's anomaly between 1988 and 2007, involving 28 patients with a mean age of about 29 years.
- The results showed no operative deaths, a low early mortality rate of 3.6%, and high long-term survival (96%) and reoperation-free rates (72%) over 19 years.
- Patients experienced significant improvements in heart function and exercise tolerance after surgery, with these benefits remaining stable over the follow-up period, indicating that the procedure has durable positive outcomes.
Aims: We analysed the outcome of young adults with congenital aortic valve disease who underwent allograft or autograft aortic valve or root replacement in our institution and evaluated whether there is a preference for either valve substitute.
Methods And Results: Between 1987 and 2007, 169 consecutive patients with congenital aortic valve disease aged 16-55, participating in our ongoing prospective follow-up study, underwent 63 autograft and 106 allograft aortic valve replacements (AVRs). Mean age was 35 years (SD 10.
Background And Aim Of The Study: The pulmonary autograft has been recommended as the valve of choice for aortic valve replacement (AVR) in young women contemplating pregnancy. However, current information on maternal and perinatal outcome of pregnancy in women with pulmonary autograft valve replacement is limited.
Methods: Using a nationwide Dutch registry (CONCOR) and a local Belgian tertiary care center database, 17 women (age range: 18 to 45 years) with pulmonary autograft valve replacement were enrolled into the study.
Objective: Whether allografts are the biological valve of choice for AVR in non-elderly patients remains a topic of debate. In this light we analyzed our ongoing prospective allograft AVR cohort and compared allograft durability with other biological aortic valve substitutes.
Methods: Between April 1987 and October 2005, 336 patients underwent 346 allograft AVRs (95 subcoronary, 251 root replacement).
Aims: The Ross operation is the operation of choice for children who require aortic valve replacement (AVR) and may also provide a good option in selected adult patients. Although the autograft does not require anticoagulation and has a superior haemodynamic profile, concern regarding autograft and allograft longevity has risen. In this light, we report the 13-year results of our prospective autograft cohort study.
View Article and Find Full Text PDFBackground And Aim Of The Study: Pulmonary autograft replacement of the aortic valve (the Ross operation) is the operation of choice in infants and children. Although this procedure can offer theoretical advantages at any age, its use in adults remains controversial.
Methods: A total of 264 consecutive patients (203 males, 61 females; mean age 35.
Background And Aim Of The Study: The optimal prosthesis choice in young adults requiring aortic valve replacement (AVR) remains controversial. The study aim was to determine whether implanted prosthesis type is an important determinant of outcome after AVR in young adults.
Methods: Between 1991 and 2001, 414 young adults (mean age 40 +/- 11 years; range: 16-55 years) underwent a total of 438 consecutive AVRs using 204 mechanical prostheses (MP), three bioprostheses (BP), 150 allografts (AL), and 81 autografts (AU).