Publications by authors named "Kyle Lehenbauer"
Article Synopsis
- Transcatheter closure of atrial septal defects (ASD) and patent foramen ovale (PFO) was studied using either transesophageal echocardiography (TEE) or intracardiac echocardiography (ICE) for guidance, but there's a lack of comparative data on these methods.
- The study analyzed data from 964 patients who underwent these procedures between 2016 and 2020, matching 327 patients in each group for a fair comparison of outcomes like in-hospital adverse events, length of stay, cost, and 30-day readmissions.
- Results showed no significant difference in adverse events between the methods, but ICE was linked to lower hospitalization costs compared to TEE, indicating ICE
Article Synopsis
- This study investigates device-related thrombus (DRT) occurrences after left atrial appendage closure (LAAC), focusing on how often it persists or recurs.
- It found that about 29% of DRT cases persist, with being female and having a larger initial thrombus size being significant predictors.
- Unfavorable DRT evolution is linked to a higher rate of thromboembolic events, emphasizing the importance of monitoring thrombus size post-LAAC.
Baseline Features and Reasons for Nonparticipation in the Colonoscopy Versus Fecal Immunochemical Test in Reducing Mortality From Colorectal Cancer (CONFIRM) Study, a Colorectal Cancer Screening Trial.
JAMA Netw Open
July 2023
Article Synopsis
- The CONFIRM trial aimed to compare the effectiveness of annual fecal immunochemical tests (FIT) versus colonoscopies in reducing colorectal cancer mortality, enrolling over 50,000 veterans between May 2012 and December 2017.
- The study analyzed participant demographics and examined reasons for those who chose not to participate, highlighting a mix of preferences for either colonoscopy or stool tests based on geographic and temporal factors.
- Among the 50,126 participants recruited, there was a diverse representation, and the study also noted that 11,109 eligible individuals opted out of participation for various reasons, with insights gathered via case report forms.
Article Synopsis
- Valve-in-valve (VIV) transcatheter aortic valve implantation (TAVI) is a less invasive option for high-risk patients compared to traditional surgical valve replacement, but it has a higher complication rate when done within stentless valves.
- A study analyzed 25 patients who underwent VIV-TAVI from 2013 to 2022, showing 100% procedural success with no significant complications and an average hospital stay of 2 days.
- After a median follow-up of 16.5 months, all patients demonstrated acceptable valve function, indicating that VIV-TAVI can be a safe and beneficial procedure for those at high risk for reoperation.
Background: Three-dimensional transesophageal echocardiography (3D-TEE) is the primary imaging tool for left atrial appendage closure planning. The utility of cardiac computed tomography angiography (CCTA) and patient-specific computational models is unknown.
Objectives: The purpose of this study was to evaluate the accuracy of the FEops HEARTguide patient-specific computational modeling in predicting appropriate device size, location, and compression of the WATCHMAN FLX compared to intraprocedural 3D-TEE.
Intracardiac echocardiography (ICE) has historically had limited utility in complex structural interventions. Newer 3-dimensional ICE catheters have enhanced imaging and real-time functionality. We present a novel case of mitral valve transcatheter edge-to-edge repair where transesophageal imaging was limited by massive hiatal hernia and where complementary 3D ICE imaging enabled procedural success.
View Article and Find Full Text PDFBackground: Device-related thrombus (DRT) has been considered an Achilles' heel of left atrial appendage occlusion (LAAO). However, data on DRT prediction remain limited.
Objectives: This study constructed a DRT registry via a multicenter collaboration aimed to assess outcomes and predictors of DRT.
The Cardiovascular Imaging Community's Response to the COVID-19 Pandemic.
JACC Cardiovasc Imaging
September 2021
The sternal foramen, usually an asymptomatic osteological defect, can lead to catastrophic consequences if not recognized prior to certain medical procedures. This study reports the prevalence of a sternal foramen in two South Amerindian populations compared with other published populations. We evaluated the presence of sternal foramina using thoracic computed tomography scans of 1334 (48% female) participants from two indigenous populations of Bolivia (n = 900 Tsimane, 434 Moseten).
View Article and Find Full Text PDFAscending (type A) aortic dissection can rarely result in contained transverse pericardial sinus hematoma that compresses adjacent structures making diagnosis more challenging. We present a rare case of a 77-year-old man who presented with sudden-onset chest pain and was admitted for a presumed acute coronary syndrome. Coronary angiography did not show significant stenosis and ruled out acute coronary syndrome.
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