Alexander Weymann

Dr. Alexander Weymann

Department of Thoracic and Cardiovascular Surgery, West German Heart and Vascular Center Essen, University Hospital of Essen, University Duisburg-Essen, Essen, Germany

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
12 May 2017 in Medical Science Monitor Basic Research
Verified
Journal Article
Open access
PDF file
AWAlexander Weymann
Alexander Weymann
SASadeq Ali-Hasan-Al-Saegh
Sadeq Ali-Hasan-Al-Saegh
ASAnton Sabashnikov
Anton Sabashnikov
APAron-Frederik Popov
Aron-Frederik Popov
SMSeyed Jalil Mirhosseini
Seyed Jalil Mirhosseini
C[Cardiology-Group [IMCSC-Group]
Cardiology-Group [IMCSC-Group]
BACKGROUND:Atrial fibrillation (AF) is one of the most critical and frequent arrhythmias precipitating morbidities and mortalities. The complete blood count (CBC) test is an important blood test in clinical practice and is routinely used in the worku...

20 February 2024 in Diagnostics
Verified
Journal Article
Open access
PDF file
Arian Arjomandi RadArian Arjomandi Rad
Arian Arjomandi Rad
AZAlina Zubarevich
Alina Zubarevich
Anja OsswaldAnja Osswald
Anja Osswald
RVRobert Vardanyan
Robert Vardanyan
Dimitrios E. MagouliotisDimitrios E. Magouliotis
Dimitrios E. Magouliotis
AWAlexander Weymann
Alexander Weymann
Infective endocarditis (IE) is a severe cardiac complication with high mortality rates, especially when surgical intervention is delayed or absent. This review addresses the expanding role of surgery in managing IE, focusing on the variation in surgical treatment rates, the impact of patient demographics, and the effectiveness of different surgical approaches. Despite varying global data, a notable increase in surgical interventions for IE is evident, with over 50% of patients undergoing surgery in tertiary centres. This review synthesizes information from focused literature searches up to July 2023, covering preoperative to postoperative considerations and surgical strategies for IE. Key preoperative concerns include accurate diagnosis, appropriate antimicrobial treatment, and the timing of surgery, which is particularly crucial for patients with heart failure or at risk of embolism. Surgical approaches vary based on valve involvement, with mitral valve repair showing promising outcomes compared to replacement. Aortic valve surgery, traditionally favouring replacement, now includes repair as a viable option. Emerging techniques such as sutureless valves and aortic homografts are explored, highlighting their potential advantages in specific IE cases. The review also delves into high-risk groups like intravenous drug users and the elderly, emphasizing the need for tailored surgical strategies. With an increasing number of patients presenting with prosthetic valve endocarditis and device-related IE, the review underscores the importance of comprehensive management strategies encompassing surgical and medical interventions. Overall, this review provides a comprehensive overview of current evidence in the surgical management of IE, highlighting the necessity of a multidisciplinary approach and ongoing research to optimize patient outcomes.

14 July 2017 in Medical Science Monitor Basic Research
Verified
Journal Article
Open access
SMSabreen Mkalaluh
Sabreen Mkalaluh
MSMarcin Szczechowicz
Marcin Szczechowicz
STSaeed Torabi
Saeed Torabi
BDBashar Dib
Bashar Dib
ASAnton Sabashnikov
Anton Sabashnikov
AWAlexander Weymann
Alexander Weymann
We reviewed our clinical experience with cardiac papillary fibroelastoma from 2005 to 2017. The objective of this study was to investigate the clinical and operative data, as well as the early survival rate and immediate postoperative complications. We performed a retrospective analysis of 11 patients (eight males and three females) who underwent resection of cardiac papillary fibroelastoma in our institution. Mean age at tumor diagnosis was 60±14 years. The mean dimension of the tumor was 14±11 mm. The most common symptoms were dyspnea, palpitation, and angina pectoris, while one patient had recurrent fever attacks and another patient had a transient ischemic attack. Two patients had concomitant malignant tumors (cervical and colon carcinoma) and another two had concomitant benign neoplasms (liver cyst and thyroid adenoma). Bypass and cross clamp times were 77±32 minutes and 54±18 minutes, respectively. The tumors were found predominantly on cardiac valves (n=7). In eight cases, only tumor extirpation was performed, whereas in the other three cases, the valves had to be replaced. The mean intensive care unit length of stay was 1.1±0.3 days and there was no in-hospital mortality. All patients were alive at one-year follow-up and the survival rate was 91% in the mean follow-up period of 4.15 years. The surgical treatment of cardiac papillary fibroelastoma was curative and safe. Thus, potential complications such as embolization or mechanical irritation of the valves can be avoided without high surgical risk.

27 October 2014 in Artificial Organs
Verified
Journal Article
Closed access
PDF file
AWAlexander Weymann
Alexander Weymann
NPNikhil P. Patil
Nikhil P. Patil
ASAnton Sabashnikov
Anton Sabashnikov
PMPhrashant N. Mohite
Phrashant N. Mohite
DSDiana Garcia Saez
Diana Garcia Saez
ASAndre R. Simon
Andre R. Simon

8 January 2015 in Journal of Artificial Organs
Verified
Journal Article
Closed access
PDF file
APAron-Frederik Popov
Aron-Frederik Popov
PMPrashant Nanasaheb Mohite
Prashant Nanasaheb Mohite
ASAnton Sabashnikov
Anton Sabashnikov
AWAlexander Weymann
Alexander Weymann
NPNikhil Prakash Patil
Nikhil Prakash Patil
ASAndre Ruediger Simon
Andre Ruediger Simon

7 September 2023 in Medicina
Verified
Journal Article
Open access
PDF file
FHFlorian Helms
Florian Helms
BSBastian Schmack
Bastian Schmack
AWAlexander Weymann
Alexander Weymann
JHJasmin S. Hanke
Jasmin S. Hanke
RNRuslan Natanov
Ruslan Natanov
Aron-Frederik PopovAron-Frederik Popov
Aron-Frederik Popov
Minimally invasive techniques have gained immense importance in cardiovascular surgery. While minimal access strategies for coronary and mitral valve surgery are already widely accepted and often used as standard approaches, the application of minimally invasive techniques is currently expanded towards more complex operations of the ascending aorta as well. In this new and developing field, various techniques have been established and reported ranging from upper hemisternotomy approaches, which allow even extensive operations of the ascending aorta to be performed through a minimally invasive access to sternal sparing thoracotomy strategies, which completely avoid sternal trauma during ascending aorta replacements. All of these techniques place high demands on patient selection, preoperative planning, and practical surgical implementation. Application of these strategies is currently limited to high-volume centers and highly experienced surgeons. This narrative review gives an overview of the currently available techniques with a special focus on the practical execution as well as the advantages and disadvantages of the currently available techniques. The first results demonstrate the practicability and safety of minimally invasive techniques for replacement of the ascending aorta in a well-selected patient population. With success and complication rates comparable to classic full sternotomy, the proof of concept for minimally invasive replacement of the ascending aorta is now achieved.