alexa Ortner’s Syndrome as First Clinical Presentation of Severe Pulmonar Arterial Hypertension | OMICS International
ISSN: 2161-105X
Journal of Pulmonary & Respiratory Medicine
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Ortner’s Syndrome as First Clinical Presentation of Severe Pulmonar Arterial Hypertension

Bolaki M1, Fanaridis M1*, Pediaditis E2, Mitrouska I1 and Georgopoulos D1,2

1Department of Pulmonary Medicine, University Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece

2Department of Intensive Care Medicine, University Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece

*Corresponding Author:
Michail Fanaridis
Department of Pulmonary Medicine
University Hospital of Heraklion, University of Crete
Medical School, P.O. box 1352
Heraklion,711010, Crete
Greece
Tel: 2810392433
Fax: 2810542650;
E-mail: [email protected]

Received date: November 30, 2016; Accepted date: January 17, 2016; Published date: January 21, 2016

Citation: Bolaki M, Fanaridis M, Pediaditis E, Mitrouska I, Georgopoulos D (2017) Ortner’s Syndrome as First Clinical Presentation of Severe Pulmonar Arterial Hypertension. J Pulm Respir Med 6: 387. doi: 10.4172/2161-105X.1000387

Copyright: © 2016 Bolaki M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

A 40 year old female, non-smoker with a past medical history of urticaria and allergic rhinitis presented with hoarseness of voice of 3 months duration without any accompanying symptoms or limitation of daily activities. Direct laryngoscopy identified palsy of the left vocal cord. The magnetic resonance imaging of the chest indicated abnormal signal intensity in the left vocal cord. The thoracic computed tomography revealed only an enlargement of the pulmonary artery, while transthoracic echocardiography estimated systolic pulmonary artery pressure of 75 mmHg. Pulmonary function tests were compatible with pulmonary vascular disease and cardiopulmonary exercise test showed exercise limitation of cardiocirculatory origin (maximum O2 consumption 60% of pred.). Catheterization of the right heart showed precapillary pulmonary hypertension (mean pulmonary artery pressure 40 mmHg) with a positive response to vasoreactivity test. A diagnosis of idiopathic pulmonary arterial hypertension (IPAH) was made, with hoarseness of voice as the only manifestation of the disease. The hoarseness of voice is believed to be the result of the compression of the left recurrent laryngeal nerve between aorta and the dilated pulmonary artery. This is an unusual case of cardiovocal syndrome (or Ortner’s syndrome) in a patient with IPH who had no perception of dyspnea or limitation of daily activities.

Keywords

Hoarseness; Idiopathic pulmonary arterial hypertension; Cardiovocal syndrome; Catheterization of the right heart; Ortner’s syndrome

Case Report

A 40 year old woman, non-smoker, was admitted to the hospital for evaluation of hoarseness of voice. The patient denied any accompanying symptom or limitation of her daily activities. Her past medical history included urticaria, allergic rhinitis and anxiety disorder. The only medication she received consisted of escitalopram 20 mg (escitalopram- SSRI). The patient a few days ago visited an otorhinolaryngologist complaining of persistence of hoarseness of voice for several months duration. Fiber-optic laryngoscopy revealed palsy of the left vocal cord and a thorough investigation began in order to identify the cause of the palsy. The magnetic resonance imaging of the neck showed shift of the left vocal cord towards the midline and abnormal signal intensity. The ultrasound of the thyroid gland and the computed tomography of the brain were normal. The computed tomography of the chest (CT) revealed: a) an increased diameter of the main pulmonary artery (3.7 cm), b) subtle effusion in the inferior part of the anterior pericardial petal and c) two micronodules in the periphery of the right lower lobe. On hospital admission the vital signs and oxygen saturation were normal (Figure 1). On heart auscultation the pulmonary component of the second heart sound was accentuated. The rest of clinical examination was unremarkable. The ECG revealed sinus rhythm, 75 bpm, and incomplete RBBB and right axis deviation. The chest X-ray was considered as normal. Laboratory tests were within normal range, apart from a slightly increased erythrocyte sedimentation rate (17 mm/1st hour) and mild lymphopenia (1000 k/μλ).

pulmonary-respiratory-medicine-pulmonary-artery

Figure 1: Chest CT showing dilatation of the pulmonary artery (3.7 cm blue line).

The clinical examination and CT findings were consistent with pulmonary hypertension and an extensive work up was performed. The echocardiography demonstrated severe enlargement of the right ventricle, a right to left movement of the intraventricular septum during systole (D-shaped left ventricle), severe tricuspid valve regurgitation (estimated systolic pulmonary artery pressure 75 mmHg) and a small pericardial effusion in the anterior part of the right ventricle. The findings of pulmonary function tests (PFTs) were compatible with pulmonary hypertension (decreased diffusion capacity for CO with preserved alveolar volume). Furthermore, variable extrathoracic upper airway obstruction was evident in the maximum flow-volume loop, due to vocal cord paralysis. Cardiopulmonary exercise test (CPET) revealed a decrease in the maximum oxygen consumption (62% pred.), attributed to a reduced maximum oxygen pulse which achieved an early plateau associated with a rapid increase in the heart rate to a predicted maximum value. The right heart catheterization confirmed the presence of precapillary pulmonary hypertension. The mean pulmonary artery pressure was 40 mmHg with normal values of wedge (occlusion) pressure and cardiac output. The vasoreactivity test was positive. There was no evidence of connective tissue disorders. A diagnosis of idiopathic pulmonary arterial hypertension was made.

Discussion

To our knowledge this is the first case of idiopathic pulmonary arterial hypertension presenting with hoarseness of voice as a sole symptom and being investigated extensively with imaging tests, PFTS, CPET and right heart catheterization. Pulmonary arterial hypertension is an unusual cause of cardiovocal or Ortner’s syndrome.

In general, hoarseness may be due to a variety of clinical conditions including inflammatory or irritant causes, neoplasia, neuromuscular and systemic diseases and psychiatric disorders [1]. Ortner [2] described a series of 3 cases of mitral stenosis suffering from hoarseness of voice because of left recurrent laryngeal nerve (RLN) palsy. Recurrent laryngeal nerve is a terminal branch of the vagus nerve that innervates the larynx with a different course on each side. The right RLN crosses the first part of the subclavian artery and hooks around to travel between the trachea and esophagus. The left RLN arises from the left vagal trunk in the thorax then crosses the arch of the aorta and hooks around the ligament arteriosum. Finally, ascends in the groove between the trachea and esophagus. The left RLN palsy is more common than the right RLN palsy. Ortner had initially suggested that the cause of the palsy was the enlargement of the left atrium pushing up the left RLN and compressing against the aortic arch. Nevertheless, it was later found that compression of the nerve between the aorta and pulmonary artery is responsible for the palsy [3]. The aorta has been shown to play an important role in the biomechanical environment of the RLN [4].

Although cardiovocal syndrome was initially described in the setting of mitral stenosis it has since been associated with a broader list [5] of cardiovascular pathology in adults including: atrial septal defect [6], patent ductus arteriosus [7], eisenmenger’s syndrome [8], aortic aneurysm [9,10], primary pulmonary hypertension [11-13], mitral regurgitation [14] and congenital heart disease [15]. Chronic hoarseness is a rare symptom in infancy. Cardiovascular hoarseness was reported in 256 patients during the period 1980-2011 [16]. Hoarseness was the only symptom in 35% of patients and aortic aneurysms were the most common risk factors leading to hoarseness [16]. None of them had pulmonary arterial hypertension.

The patient started treatment with a calcium-channel blocker titrating according to systolic blood pressure (starting dose amlodipine 10 mg but decreasing to 5 mg) Three months later the patient is being treated with amlodipine 15 mg and does not report any other symptom or limitation of daily activities, while the hoarseness of voice was considerably improved. The patient status is followed regularly in the pulmonary hypertension clinic.

Conclusion

Though cardiovocal syndrome is rarely due to pulmonary arterial hypertension, on appropriate clinical grounds this disease should be suspected even if hoarseness of the voice is the only symptom.

References

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