Resumo

SOTO-VACA GUZMAN, I; SALINAS-RAMOS, V; CONTRERAS, F  e  CLAROS-BELTRAN, N. Proposal for a preoperative tomographic classification for carotid body tumor. Cuad. - Hosp. Clín. [online]. 2020, vol.61, n.2, pp.23-32. ISSN 1562-6776.

Abstract Objective: To propose a preoperative classification of patients with Carotid Body Tumor and relate them to postoperative complications. Material and methods: All patients operated with a diagnosis of Carotid Body Tumor between 2005 and 2014 at the Obrero Hospital No. 1 of the National Health Fund in La Paz - Bolivia Results: 115 patients with an average age of 52 years (SD±11.725 and a mode of 57 years) were analyzed and operated on, of which 109 (94.80%) corresponded to the female gender with a ratio of 18: 1. All the patients were from and residents of cities located more than 2,500 meters above sea level. The mean evolution was 3 years (SD±2.189), and only 7 patients (6.1 %) had a smoking habit. 83 patients (72.2%) of CBTs are located on the left side In the clinical manifestations, all patients present the tumor located in the mandibular angle, in front of the sternocleidomastoid muscle, describing a gradual and permanent growth in 72 subjects (62.6%), headache in 45 (39.1 %), presence ofheartbeat in 30 subjects (26.1 %), dysphagia in 9 (7.9%), dizziness in 16 (13.9%) and dysphonia in 6 (5.2%). Among the most obvious signs of CBT, the Fontaine sign is described in 114 subjects (99.2%), adenomegaly in 20 (17.4%) and other less frequent signs such as murmur, parapharyngeal bulging and cranial nerve involvement. All patients were classified in both systems (Shamblin and ours called from the Andes). 39 patients (33.2%) with postoperative complications were described, Grade I: 1 patient without complications; Grade II: of 58 subjects, 4 (3.5%) had temporary hypoglossal paralysis; in Grade III: Of the 41 subjects, 24 (20.8%) presented external carotid artery ligation, hypoglossal and glossopharyngeal paralysis, recurrent lesión and superior larynx. In group IV, of the 15 operated subjects, 11 presented complications (9.6%of the total and 73% o f the group), among which are external carotid artery ligation, hypoglossal injury and one patient with stroke and hemiparesis. A reoperation (0.86%) and no mortality are described. Conclusión: Propose a preoperative classification that has the possibility of being associated with complications and prognosis.

Palavras-chave : Carotid body tumor; chemodectomas .

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