{"title":"Lactate Dehydrogenase Levels after aortic valve replacement: What do they tell us?","authors":"Laura Rings, Loreta Mavrova-Risteska, Achim Haeussler, Vasileios Ntinopoulos, Matteo Tanadini, Hector Rodriguez Cetina Biefer, Omer Dzemali","doi":"10.1055/a-2454-9020","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Lactate dehydrogenase (LDH) is a standard postoperative marker for hemolysis in the presence of paravalvular leakage (PVL) after aortic valve replacement (AVR). LDH is elevated in certain valves by a fluttering phenomenon. Previous studies suggested a correlation between microparticles (MP) and LDH elevation after AVR. We analyze the postoperative relevance of LDH after AVR with transapical transcatheter aortic valves (TA-TAV) or rapid deployment valves (RDV).</p><p><strong>Method: </strong>We retrospectively analyzed the data from patients who received an AVR with RDV and TA-TAV groups between 2015-2018. We compared PVL and LDH levels before and after surgery, transvalvular gradients, heart block that required pacemaker implantation, and 30-day mortality.</p><p><strong>Results: </strong>138 consecutive patients were selected: 79 patients in the RDV group (37 Sorin Perceval valve, 42 Edwards Intuity valves) and 59 in the TA-TAV group (Edwards Sapien valve). TA-TAV-group were older (median 10 years) and with higher incidence of PVL (Odds ratio 11, 95% CI from 2.5 - 73.2, p-value 0.04)). TA-TAV-Group showed lower levels of LDH despite higher rates of PVL while the Perceval valve trended towards higher LDH values. Additionally, the RDV group showed an increased arrhythmia profile (p=0.0041) although the results show lower incidence in pacemaker implantation (95 % CI 0.05 - 1.65, p=0.635). 30-day mortality was similar between groups.</p><p><strong>Conclusion: </strong>Our data do not support the association between hemolysis and PVL despite elevated LDH in suture-free valves. LDH could be a marker of extreme heart muscle output or fluttering phenomena and not a marker of hemolysis after sutureless AVR.</p>","PeriodicalId":23057,"journal":{"name":"Thoracic and Cardiovascular Surgeon","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thoracic and Cardiovascular Surgeon","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1055/a-2454-9020","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Lactate dehydrogenase (LDH) is a standard postoperative marker for hemolysis in the presence of paravalvular leakage (PVL) after aortic valve replacement (AVR). LDH is elevated in certain valves by a fluttering phenomenon. Previous studies suggested a correlation between microparticles (MP) and LDH elevation after AVR. We analyze the postoperative relevance of LDH after AVR with transapical transcatheter aortic valves (TA-TAV) or rapid deployment valves (RDV).
Method: We retrospectively analyzed the data from patients who received an AVR with RDV and TA-TAV groups between 2015-2018. We compared PVL and LDH levels before and after surgery, transvalvular gradients, heart block that required pacemaker implantation, and 30-day mortality.
Results: 138 consecutive patients were selected: 79 patients in the RDV group (37 Sorin Perceval valve, 42 Edwards Intuity valves) and 59 in the TA-TAV group (Edwards Sapien valve). TA-TAV-group were older (median 10 years) and with higher incidence of PVL (Odds ratio 11, 95% CI from 2.5 - 73.2, p-value 0.04)). TA-TAV-Group showed lower levels of LDH despite higher rates of PVL while the Perceval valve trended towards higher LDH values. Additionally, the RDV group showed an increased arrhythmia profile (p=0.0041) although the results show lower incidence in pacemaker implantation (95 % CI 0.05 - 1.65, p=0.635). 30-day mortality was similar between groups.
Conclusion: Our data do not support the association between hemolysis and PVL despite elevated LDH in suture-free valves. LDH could be a marker of extreme heart muscle output or fluttering phenomena and not a marker of hemolysis after sutureless AVR.
期刊介绍:
The Thoracic and Cardiovascular Surgeon publishes articles of the highest standard from internationally recognized thoracic and cardiovascular surgeons, cardiologists, anesthesiologists, physiologists, and pathologists. This journal is an essential resource for anyone working in this field.
Original articles, short communications, reviews and important meeting announcements keep you abreast of key clinical advances, as well as providing the theoretical background of cardiovascular and thoracic surgery. Case reports are published in our Open Access companion journal The Thoracic and Cardiovascular Surgeon Reports.