Publications by authors named "J G Gaca"
Background: Binding sites in the costoclavicular space are commonly encountered during transvenous lead extraction. Severe adhesions may warrant use of more aggressive rotational cutting tools or surgical intervention. It is not known whether preprocedural multidetector computed tomography (MDCT) can provide information about the likelihood that a patient will require costoclavicular intervention.
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- The study compares the survival rates and durability between porcine and pericardial prostheses used in tricuspid valve replacement over a period from 1975 to 2022.
- Results show no significant differences in 10-year survival rates, cumulative incidence of structural valve deterioration, or reoperation rates between the two types of valves.
- The findings suggest that both valve types are equally effective, indicating that the choice of valve may be based on other factors rather than survival or durability outcomes.
Background: It has long been held that the safe duration of hypothermic circulatory arrest (HCA) is at least 25 to 30 minutes. However, this belief is based primarily on clinical outcomes research and has not been systematically investigated using more sensitive brain imaging and neurocognitive assessments.
Methods: This exploratory substudy of the randomized Cognitive Effects of Body Temperature During Hypothermic Circulatory Arrest (GOT ICE) trial, which compared outcomes for deep vs moderate hypothermia during aortic arch surgery, investigated the frequency of neurocognitive and structural and functional magnetic resonance imaging (MRI) deficits with HCA of short (<20 minutes) duration.
Background: Debate persists regarding the outcomes of leaflet resection (RESECT) vs chordal replacement (CHORD) for degenerative mitral regurgitation. Our aim was to compare early and late outcomes of the RESECT vs CHORD techniques for degenerative mitral regurgitation.
Methods: A total of 1066 consecutive patients undergoing mitral repair for degenerative regurgitation with the RESECT vs CHORD techniques were evaluated from a prospectively maintained database.
Background: Debate continues regarding the superiority of porcine vs pericardial bioprostheses, and data relevant to this comparison are scant. This study compared late survival and structural valve deterioration of porcine and pericardial mitral valve prostheses.
Methods: Adults undergoing mitral valve replacement with 1 first-generation porcine valve model and 1 pericardial valve line were reviewed from a prospectively maintained institutional database between 1976 and 2020.