Publications by authors named "Lukas Reider"
Effectiveness of controlled-expansion transjugular intrahepatic portosystemic shunt (CX-TIPS) in an interdisciplinary setting at a large tertiary center.
Wien Klin Wochenschr
September 2025
Introduction: The use of controlled-expansion transjugular intrahepatic portosystemic shunt (CX-TIPS) effectively controls portal hypertension (PH)-related complications while reducing risks related to fully expanded stents. We evaluated the effectiveness of CX-TIPS in a large Viennese patient cohort.
Method: We assessed the number of patients evaluated for CX-TIPS placement by interdisciplinary discussion at the Medical University of Vienna and included all patients from the prospective AUTIPS registry undergoing CX-TIPS placement between June 2018 - December 2024.
Background & Aims: Transjugular intrahepatic portosystemic shunt (TIPS) implantation is indicated for recurrent/refractory ascites in patients with cirrhosis. The prognostic impact of residual minimal ascites after TIPS implantation has not yet been investigated.
Methods: We included patients with cirrhosis undergoing covered TIPS implantation for refractory ascites in Vienna (2000-2022) and Hannover (2009-2021) with available abdominal ultrasound 3 months after TIPS insertion (3M).
Quantification of perivascular adipose tissue attenuation does not add incremental prognostic value in patients undergoing transcatheter aortic valve implantation.
Eur Heart J Imaging Methods Pract
January 2025
Aims: Perivascular adipose tissue attenuation (PVAT) has emerged as a novel coronary computed tomography angiography (CCTA)-based biomarker predicting cardiovascular events by capturing inflammation around the coronary arteries. We assessed whether PVAT adds incremental prognostic value in patients undergoing transcatheter aortic valve implantation (TAVI).
Methods And Results: A total of 510 patients underwent CCTA imaging prior to TAVI between November 2015 and June 2020 at the Medical University of Vienna.
Background: Neuroendocrine tumors can cause carcinoid heart disease, often presenting with pulmonary and tricuspid regurgitation. Valvular pathology and right heart failure can influence prognosis more than the tumor itself. Given high surgical risk, prolonged recovery, and limited life expectancy, interventional valve replacement is a strong alternative.
View Article and Find Full Text PDFBackground & Aims: Transjugular intrahepatic portosystemic shunt (TIPS) effectively treats complications of cirrhosis. Systemic inflammation (SI) is linked to acute-on-chronic liver failure (ACLF) and liver-related death. We aimed to assess the trajectory and clinical impact of SI parameters after TIPS implantation.
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- Leaflet thrombosis (LT) is a complex and poorly understood complication that can occur after transcatheter aortic valve implantation (TAVI), prompting the need for better prediction models to identify at-risk patients.
- A study involving 101 TAVI patients utilized imaging and lab tests to determine various clinical and biological factors associated with LT, discovering that certain elevated and decreased lab values could predict its occurrence.
- The researchers created an EFFORT score to quantify the risk, finding that patients scoring 2 or higher had an 85.7% likelihood of developing LT, indicating the score's potential as a powerful tool for risk assessment post-TAVI.
Impact dynamics of granular debris flows based on a small-scale physical model.
Acta Geotech
November 2023
The peak pressure of a granular debris flow at low Froude conditions can be calculated with knowledge of the stress anisotropy and the bulk density as well as the run-up height at impact. Based on a small-scale physical model, measurements of stress anisotropy and flow density values at impact are presented and applied to existing run-up prediction models, and further compared with back-calculated run-up coefficients from measured maximum impact pressures. For this purpose, we conducted 17 experiments with impact measurements and six experiments without impact measurements at Froude numbers, ranging from 0.
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- A 33-year-old man with lupus membranous nephropathy experienced painful leg swelling and acute kidney injury due to extensive thrombosis in significant venous structures, including both renal veins and the inferior vena cava.
- Initial treatment with pharmacomechanical thrombolysis was ineffective, but catheter-based mechanical thrombectomy successfully cleared the thrombus and improved the patient’s condition.
- Despite a recurrent thrombosis after one week, further treatment adjustments led to another thrombectomy, resulting in sustained improvement and preservation of kidney function, highlighting the importance of combining catheter-based procedures with targeted medical therapy.
Austrian consensus on the diagnosis and management of portal hypertension in advanced chronic liver disease (Billroth IV).
Wien Klin Wochenschr
September 2023
The Billroth IV consensus was developed during a consensus meeting of the Austrian Society of Gastroenterology and Hepatology (ÖGGH) and the Austrian Society of Interventional Radiology (ÖGIR) held on the 26th of November 2022 in Vienna.Based on international recommendations and considering recent landmark studies, the Billroth IV consensus provides guidance regarding the diagnosis and management of portal hypertension in advanced chronic liver disease.
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