The investigators have previously proposed a prediction model for difficult transoral and submental thyroidectomy through a retrospective study. In order to better promote transoral and submental endoscopic approach for thyroid surgery and to set up an appropriate training course, the investigators aim to renovate and validate the prediction model through a prospective study.
Male sex, age, BMI, neck length and certain thyroid disease such as thyroiditis and hyperthyroidism have been long cited as indicators of a difficult thyroidectomy. The investiagtors hypothesized that neck extension was critical to the exposure and visualization of the surgical field in the endoscopic thyroidectomy. Therefore, several measurements were innovatedly integrated into the prediction model, including neck circumference, thyromental distance, sternomental distance, ratio of height-to-thyromental distance, ratio of height-to-sternomental distance.
Study Type
OBSERVATIONAL
Enrollment
300
Age, body mass index, gender, thyroid function parameters, lesion size, lesion location, ultrasound data, thyromental distance, neck circumference, sternomental distance, ratio of height-to-thyromental distance, RHTMD, ratio of height-to-sternomental distance, RHSMD
Shanghai Sixth People's Hospital
Shanghai, China
RECRUITING1.Number of participants with recurrent laryngeal nerve injury 1.Number of participants with recurrent laryngeal nerve injury Number of participants with recurrent laryngeal nerve injury
impaired vocal cord mobility confirmed by postoperative laryngoscopy
Time frame: through study completion, an average of 1 year
Number of participants with hypoparathyroidism Number of participants with hypoparathyroidism Number of participants with hypoparathyroidism
a postoperative parathyroid hormone level of less than 10 pg/ml a postoperative parathyroid hormone level of less than 10 pg/ml a postoperative parathyroid hormone level of less than 10 pg/ml
Time frame: through study completion, an average of 1 year
Number of participants with mental nerve injury
a postoperative numbness in the lower lip and submental area
Time frame: through study completion, an average of 1 year
operative time
operative time was defined as the duration from incision to closure, and was collected from anesthesia record sheet
Time frame: immediately at the end of the surgery
hospitalization
days of hospitalization
Time frame: Length of stay from hospitalisation to discharge
degree of pain
pain intensity was assessed using a standard visual analogue score, with a score of 0 to 10 corresponding to no pain to the most severe pain
Time frame: approximately 4 hours after surgery and on postoperative day 1
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