Chemo-port insertion: A cause of vocal cord palsy

Unilateral vocal fold paralysis as a port complication

Unilateral vocal fold paralysis (UVFP) is a frequent finding in otorhinolaryngology practice, but its occurrence as a port complication was very rarely described in English Literature. The authors report a 55-year-old woman with a pancreatic adenocarcinoma who presented a left vocal fold paralysis that occurred concurrently with a venous thrombosis of the left subclavian vein, where a totally implantable venous-access had been previously placed. Although the patient's oncologic disease, that could mislead to a neoplastic cause of the UVFP, the authors came across with an unusual etiology and to their best knowledge, it is the first case of irreversible UVFP associated with onsite thrombosis of the vessel where a port was implanted. The objective of this article is to present and discuss this rare case of UVFP secondary to a port complication and to review the main mechanisms of iatrogenic vocal fold paralysis related to these devices.

A report of an unexpected complication of PORT-A-CATH insertion

INTRODUCTION

Vascular access is essential in the management of patients, and sometimes poses a problem, especially in patients requiring chronic treatment. Surgical insertion of the port-a-cath solved this problem by providing easy access, but unfortunately, it's associated with some complications.

CASE PRESENTATION

We present a case of 32 year-old woman, diagnosed with advanced breast cancer, admitted for insertion of a port-a-cath for neoadjuvant chemotherapy. A few hours after the operation, the patient developed hoarseness and a cough. A flexible laryngoscope showed the left vocal cord which was fixed in the middle position and did not move, while the other maintained normal motility. The patient was treated conservatively.

CONCLUSION

This case demonstrated a rare and unexpected complication of the insertion of a port-a-cath, which is the result of an injury to the recurrent laryngeal nerve. We are reporting this case to encourage physicians to take note of this complication and know how to manage it.

Central line catheterisation as a cause of vocal cord palsy

We report an unusual case of vocal cord palsy secondary which developed following insertion of a central line. A 46-year-old gentleman was admitted with seizure activity and reduced GCS. Following failed attempts at establishing intravenous or intraosseous access, a central line was placed into the right internal jugular vein. After extubation, the patient was found to have a right vocal cord palsy. Contemporaneous computed tomography (CT) imaging of the neck and thorax was performed to determine the cause of the palsy. Although this CT was clear, review of the original trauma CT showed a haematoma within the right carotid sheath. This led to a diagnosis of neuropraxia secondary to haematoma from central venous catheterisation. The patient went on to make a full recovery. We discuss our case with review of previous literature and discussion of management in such situations.

Vocal Fold Paralysis Secondary to Subclavian Venous Thrombosis

The etiology of vocal fold paralysis is multifaceted. One of the rare causes is internal jugular vein thrombosis secondary to central venous catheterization. The palsy is usually ipsilateral to the site of indwelled catheterization, self-limited and reversible. The authors of this manuscript report a rare case of contralateral recurrent laryngeal nerve palsy induced by subclavian vein thrombosis following central venous catheterization. The patient developed irreversible vocal fold paralysis that necessitated office-based injection laryngoplasty.

Transient vocal cord paralysis following central venous hemodialysis catheter insertion

In this article, we present a case of recurrent laryngeal nerve palsy not caused by nerve injury but due to local anesthetic infiltration that was applied prior to central venous catheterization. A 47-year-old female patient was admitted to emergency room with fatigue and nausea and was diagnosed with acute renal failure. Right jugular venous catheterization was performed for emergency hemodialysis with Seldinger technique using middle approach. Within minutes and immediately after the procedure the patient complained of hoarseness and shortness of breath, and she had stridor in her physical exam. Awake flexible fibreoptic laryngoscopy revealed unilateral right-sided vocal cord paralysis with no edema. The patient was asked to remain nil per os and observed in ER with nasal oxygen. At the 3rd hour of follow-up without any other intervention, her symptoms resolved. Due to its proximity to the internal jugular vein injury to the recurrent laryngeal nerve while attempting to insert a central venous line can occur, particularly with difficult and repeated attempts. Local anesthesia led temporary ipsilateral vocal cord paralysis in patients undergoing carotid endarterectomy is described in literature. We think temporary vocal cord palsy in our case was due to local anesthetic infiltration rather than nerve injury, since it resolved spontaneously within only hours. Expectant treatment is a good choice ensuring the patient's airway is safe. Emergency physicians should be aware of this rare complication and its right management.