Vocal Fold Paralysis as a Sign of Chest Diseases: A 15‐year Retrospective Study

Bando, Hideki; Nishio, Takeshi; Bamba, Hitoshi; Uno, Toshiyuki; Hisa, Yasuo

doi:10.1007/s00268-005-7959-x

Cited by 35 publications

(29 citation statements)

References 6 publications

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“…Chest radiograph remains a useful screening study, but, it is not sufficient for the full evaluation of VCP 11. Because it is very important to scrutinize the mediastinum, particularly the aortopulmonary window and the paratracheal region in patients with VCP,2 further diagnostic imaging may be needed.…”

Section: Discussionmentioning

confidence: 99%

“…It is sometimes the only sign of an underlying disease 2. Thus, it is clinically important to diagnose the primary disease in cases of vocal cord paralysis (VCP) because many of its potential causes, such as symptom-free malignant tumors, can be fatal or cause serious morbidity if detected late 2,3. Radiologic evaluation is often useful for determining the etiology of VCP, especially for conditions within the thoracic cavity.…”

Section: Introductionmentioning

confidence: 99%

“…Radiologic evaluation is often useful for determining the etiology of VCP, especially for conditions within the thoracic cavity. However, chest radiographs can sometimes miss small lesions in the mediastinum 2. In these cases, computed tomography (CT) can be a valuable diagnostic tool.…”

Section: Introductionmentioning

confidence: 99%

“…In these cases, computed tomography (CT) can be a valuable diagnostic tool. We have found only a few original reports on CT evaluation of VCP for thoracic disease 2,4. In this article, we performed a retrospective CT analysis of our patients in order to review cases of VCP with an underlying etiology of thoracic disease.…”

Section: Introductionmentioning

confidence: 99%

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CT Evaluation of Vocal Cord Paralysis due to Thoracic Diseases: A 10-Year Retrospective Study

et al. 2011

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PurposeTo discuss computed tomography (CT) evaluation of the etiology of vocal cord paralysis (VCP) due to thoracic diseases.Materials and MethodsFrom records from the past 10 years at our hospital, we retrospectively reviewed 115 cases of VCP that were evaluated with CT. Of these 115 cases, 36 patients (23 M, 13 F) had VCP due to a condition within the thoracic cavity. From these cases, we collected the following information: sex, age distribution, side of paralysis, symptom onset date, date of diagnosis, imaging, and primary disease. The etiology of VCP was determined using both historical information and diagnostic imaging. Imaging procedures included chest radiograph, CT of neck or chest, and esophagography or esophagoscopy.ResultsThirty-three of the 36 patients with thoracic disease had unilateral VCP (21 left, 12 right). Of the primary thoracic diseases, malignancy was the most common (19, 52.8%), with 18 of the 19 malignancies presenting with unilateral VCP. The detected malignant tumors in the chest consisted of thirteen lung cancers, three esophageal cancers, two metastatic tumors, and one mediastinal tumor. We also found other underlying etiologies of VCP, including one aortic arch aneurysm, five iatrogenic, six tuberculosis, one neurofibromatosis, three benign nodes, and one lung collapse. A chest radiograph failed to detect eight of the 19 primary malignancies detected on the CT. Nine patients with lung cancer developed VCP between follow-ups and four of them were diagnosed with a progression of malignancy upon CT evaluation of VCP.ConclusionCT is helpful for the early detection of primary malignancy or progression of malignancy between follow-ups. Moreover, it can reveal various non-malignant causes of VCP.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CT Evaluation of Vocal Cord Paralysis due to Thoracic Diseases: A 10-Year Retrospective Study

et al. 2011

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“…46 Recent literature has suggested that some of these cases may, in fact, be caused by diseases affecting the proximal region of the RLN. 2 Several such cases have been published in recent years further elucidating the link between UVP and aortic or pulmonary artery aneurysm, enlarged atrium, or neoplasm affecting the lower lobe of the left lung. 8,16,34,65 Thus, some proportion of those previously diagnosed with idiopathic UVP may have impaired RLN function due to excessive stretch or compression of the nerve associated with changes in the aortic arch, pulmonary vein, or atrium.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Properties of Recurrent Laryngeal Nerve in the Piglet

2010

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Unilateral vocal fold paralysis (UVP) results from damage to the recurrent laryngeal nerve (RLN). The most common causes of UVP are associated with compromised RLN tissue. The purpose of this research was to investigate the biomechanical properties of piglet RLN and identify differences in these properties along its length and in between the left and right side. Quasi-static uniaxial tensile testing and isotropic constitutive modeling was performed on seven piglet RLNs. Stiffness and other biomechanical parameters were derived from these tests and compared from conducting two different statistical analysis for the between and within nerve comparisons. Results showed higher stiffness values in the left RLN segment than for the right. Descriptive data demonstrated a higher stiffness in RLN segments surrounding the aortic arch, indicating a more protective role of the extracellular matrix in these nerves. This research offers insight regarding the protective function of the RLN connective tissues and structural compromise due to its environment.

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