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Multimodality lymphatic imaging of postoperative chylothorax in an infant with Noonan syndrome: a case report
Kay T Pham1, Duraisamy Balaguru2, Varaha S Tammisetti3
1Center for Molecular Imaging, The Brown Foundation Institute of Molecular Medicine, UT Health, 1825 Pressler St, Houston, TX, 77030, USA. Kay.T.Pham@uth.tmc.edu.
Insights
Pediatric chylothorax management in Noonan syndrome improved with multimodality lymphatic imaging. Near-infrared fluorescence lymphatic imaging and dynamic MRL precisely located leakage, guiding surgical intervention for this rare complication.
Area of Science:
- Pediatric Cardiology
- Thoracic Surgery
- Medical Imaging
Background:
- Chylothorax is a rare but serious complication following pediatric cardiac surgery.
- Noonan syndrome, a genetic disorder, is associated with increased risk due to cardiac defects and lymphatic anomalies.
Observation:
- A 6-month-old infant with Noonan syndrome developed postoperative chylothorax.
- Near-infrared fluorescence lymphatic imaging (NIRFLI) visualized lymphatic capillary drainage patterns.
- Dynamic magnetic resonance lymphangiography (MRL) pinpointed the thoracic duct leakage site.
Findings:
- Multimodality lymphatic imaging successfully guided the management of pediatric chylothorax.
- NIRFLI and MRL provided detailed anatomical and functional information of the lymphatic system.
- The identified leakage site enabled targeted surgical intervention.
Implications:
- Individualized treatment strategies for complex chylothorax cases can be developed using multimodality imaging.
- This approach is particularly valuable in syndromic patients with a higher incidence of lymphatic complications.
- Enhanced diagnostic capabilities can improve outcomes in pediatric thoracic surgery patients.
Background:
Chylothorax is a rare complication of pediatric cardiac operations that occurs more frequently in children with Noonan syndrome, a genetic disorder associated with cardiac defects and lymphatic anomalies.
Case Presentation:
We report a case of postoperative chylothorax in a 6-month-old infant with Noonan syndrome where multimodality lymphatic imaging guided management was followed. Drainage patterns of the lymphatic capillaries in the lower and upper extremities were visualized during near-infrared fluorescence lymphatic imaging (NIRFLI). Dynamic magnetic resonance lymphangiography (MRL) further identified the site of leakage in the thoracic duct and subsequently guided surgical intervention.
Conclusions:
Application of multimodality imaging allows for greater individualization of treatment and should be considered in patients with complex cases such as those with syndromes associated with a higher incidence of chylothorax. IRB Number: HSC-MS-13-0754, December 10, 2013.
