Biomedical subjects
Publications and source records attributed to Mary S Minette.
Ventricular septal defects are the most common congenital heart defect. They vary greatly in location, clinical presentation, associated lesions, and natural history. The present article describes the clinical aspects of ventricular septal defects and current management strategies.
BACKGROUND: Invasive monitors and noninvasive 2-dimensional echocardiography are the standard clinical methods for stroke volume (SV) and cardiac output computation. We studied the use of real-time color Doppler 3-dimensional (3D) echocardiography (3DE) for the assessment of SV in human beings. METHODS: In all, 55 pediatric and adult patients with good transthoracic windows and a normal aortic valve were studied. Real-time 3DE color Doppler volumes incorporating the left ventricular outflow tract and aortic valve were taken. SV was calculated from the color Doppler data in the 3DE DICOM dataset. This was compared with 2-dimensional echocardiography SV calculation from the pulsed wave velocity through the aortic valve along with the left ventricular outflow tract diameter. RESULTS: Five patients were excluded because of mismatching of the 3D color Doppler segments in the 3D volume. The 3D Doppler volumes from the remaining 50 patients were analyzed. There was good correlation between the patients' averaged 3DE SV calculations and the 2-dimensional echocardiography pulsed wave SV estimation (y = 0.84x + 7.8, r2 = 0.90). CONCLUSION: Real-time 3D Doppler echocardiography can be used to accurately calculate SV and cardiac output, compared with conventional pulsed Doppler measurement, in pediatric and adult patients from transthoracic imaging.
OBJECTIVE: To report the survival of fungal sepsis in extracorporeal membrane oxygenation. DESIGN: Single case report. SETTING: Tertiary referral children's hospital pediatric intensive care unit. PATIENTS: A single case report of an infant with congenital heart disease who developed candida sepsis while supported postoperatively with extracorporeal membrane oxygenation. RESULTS: This infant survived a prolonged episode of candidemia after repair of congenital heart disease, which required extracorporeal membrane oxygenation support. The patient has no identified sequelae at 6-month follow-up and continues on long-term fluconazole therapy for candida endocarditis. CONCLUSIONS: Candidemia, particularly Candida albicans species, may not be a contraindication for extracorporeal membrane oxygenation support. With antifungal therapy and adequate inotropic use to counter the effects of septicemia, survival can be maintained until the patient adequately recovers, allowing decannulation, removal of all catheters, and eventual bloodstream sterility.