Transient Recurrent Laryngeal Nerve Palsy after Interventional Therapy

Author:

Mandilaras Guido1ORCID,Happel Christoph M.2,Funk Christoph M.1,Haas Nikolaus A.1,Freund Matthias3,Fischer Marcus1

Affiliation:

1. Division of Pediatric Cardiology and Pediatric Intensive Care, University Hospital of Munich, LMU, Munich, Germany

2. Department of Pediatric Cardiology and Pediatric Intensive Care, MHH, Hannover, Niedersachsen, Germany

3. Department for Neonatology, Pediatric Intensive Care, Pediatric Cardiology, Pediatric Pneumology and Allergology, Oldenburg Hospital, Oldenburg, Niedersachsen, Germany

Abstract

Abstract Background Hoarseness due to laryngeal nerve injury is a known complication after cardiothoracic surgery involving the aortic arch. However, this complication is only rarely reported after catheter interventions. Results In this article we present the unusual case of a left-sided vocal cord paralysis in four patients after primary stenting of a re-coarctation, re-dilatation of a stented coarctation, a primary stenting of the left pulmonary artery (LPA), and prestenting for percutaneous pulmonary valve implantation with dilation of the LPA. After implanting bare metal stents, it is common practice, whilst contemplating the diameters of the adjacent structures, to optimize the stent diameter in a two-step procedure and dilate the stent until a maximum diameter is achieved and there is no residual gradient after applying this technique. Four of our patients experienced hoarseness after the intervention and a vocal cord paralysis was diagnosed. Angiography revealed no signs of extravasation or dissection. Clinical symptoms improved over the course of the following 6 months; patients with interventions at the aortic arch showed a complete remission, patients with procedures involving the LPA showed only mild regression of the symptoms. Conclusion To our knowledge, this complication (Ortner's syndrome, cardiovocal syndrome) after such interventions has rarely been reported before. Although a rare complication, the recognition of these symptoms may support colleagues in managing affected patients. In addition, awareness for hoarseness after interventional therapies and systematic screening for this complication might help to identify patients at risk in the future.

Publisher

Georg Thieme Verlag KG

Subject

Cardiology and Cardiovascular Medicine,Pulmonary and Respiratory Medicine,Surgery

Reference36 articles.

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3. Cardio-vocal syndrome: laryngeal paralysis in intrinsic heart disease;H H Stocker;Am Heart J,1958

4. Vocal cord paralysis after cardiovascular surgery in children: incidence, risk factors and diagnostic options;E García-Torres;Eur J Cardiothorac Surg,2020

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