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Published on: August 17, 2018
ASD closure under pressure
Suhair Omar Shebani1, Gregory James Skinner1, Christopher Duke1
1East Midlands Congenital Heart Centre, Leicester Hospitals NHS Trust, Leicester, Leicestershire, UK.
Insights
Transcatheter atrial septal defect device closure can be safe in elderly patients, even with a significant rise in left atrial pressure. This approach improved the patient's symptoms and functional status.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- Transcatheter atrial septal defect (ASD) device implantation in elderly patients can precipitate acute pulmonary edema due to impaired left ventricular diastolic function.
- A significant increase in left atrial pressure (LAP) during device implantation is a concern, but clear contraindication cut-off values for LAP are not established.
Observation:
- This case report details the successful closure of an ASD in a 73-year-old patient.
- The patient experienced a substantial increase in mean LAP from 18 to 25 mm Hg during device implantation, despite the use of a fenestrated device.
- Post-procedure management included mechanical ventilation, milrinone, and diuretics, which prevented pulmonary edema.
Findings:
- Successful transcatheter ASD device closure was achieved in an elderly patient with a significant LAP increase.
- The patient demonstrated notable clinical improvement, with dyspnea resolving and functional status improving from New York Heart Association (NYHA) class III to II.
Implications:
- This case suggests that successful ASD device closure is feasible even in the presence of elevated LAP in select elderly patients.
- Careful patient selection and peri-procedural management may allow for safe device implantation in cases with significant LAP elevation.
- Further research is warranted to define optimal management strategies and identify predictors of success in this patient population.
Abstract:
Transcatheter atrial septal defect device implantation in elderly patients may cause acute pulmonary oedema when impaired left ventricular diastolic function causes an abrupt increase in left atrial pressure. Though left atrial pressure is often monitored during test occlusion of a defect, it is not clear at what cut-off value device implantation is contraindicated. We report successful closure of an atrial septal defect in a 73-year-old patient, even though the mean left atrial pressure increased from 18 to 25 mm Hg with device implantation. Although a fenestrated device was used, this did not prevent the rise in left atrial pressure. The patient was supported with mechanical ventilation, milrinone and intravenous diuretics following the procedure and did not develop pulmonary oedema. Her dyspnoea improved and her functional status increased from New York Heart Association (NYHA) III to NYHA II. In conclusion, successful device closure can be accomplished even with high left atrial pressure.
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