Related Experiment Videos
The disappearing pulmonary artery band
D Danilowicz1, S Presti, S Colvin
1Department of Pediatric Cardiology, New York University Medical Center, New York.
Insights
Pulmonary artery bands can erode, causing heart failure and high blood pressure in infants. Careful monitoring is crucial to ensure bands protect pulmonary arteries and avoid serious complications.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
- Surgical Complications
Background:
- Pulmonary artery banding is a palliative procedure for complex congenital heart defects.
- It aims to reduce pulmonary blood flow and prevent pulmonary hypertension.
- Optimal outcomes require the band to remain effective without complications.
Observation:
- A case of pulmonary artery band erosion leading to recurrent congestive heart failure and pulmonary arterial hypertension is presented.
- Literature review indicates a high mortality rate in cases of band erosion or cut-through.
- Pulmonary vascular disease can mimic successful banding by reducing left-to-right shunting.
Findings:
- Band erosion is a serious complication of pulmonary artery banding.
- Accurate assessment of band function is critical, especially when noninvasive methods are inconclusive.
- Pulmonary artery pressure and flow measurements may be necessary to confirm band protectiveness.
Implications:
- Ensuring the integrity and protective function of pulmonary artery bands is vital for patient outcomes.
- Early detection and management of band erosion are crucial to prevent mortality.
- Further research into the long-term durability and monitoring of pulmonary artery bands is warranted.
Abstract:
A child is presented who had pulmonary artery bands that eroded or cut-through to the point where congestive heart failure and pulmonary arterial hypertension recurred. A summary of previously reported cases of band erosion or cut-through is presented, noting that many of these children died. Pulmonary artery banding is now mainly used in infants with complex defects where mortality of early repair is prohibitive or where the Fontan procedure is the only "repair" possible. To obtain good results, a normal pulmonary vascular resistance is preferred; therefore, it is important that the pulmonary artery band is truly protective over the period of time needed. The occurrence of pulmonary vascular disease can cause a decrease in left-to-right shunting and allow a child to clinically improve, thus duplicating the response to a successful banding. If noninvasive evaluation cannot provide clear-cut proof that the band is protective, then measurement of pulmonary artery pressure and flow must be done.