Nomogram for Predicting Difficult Transoral and Submental Thyroidectomy

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorShanghai 6th People's Hospital

About this trial

No prior studies have stratified the difficulty of transoral and submental thyroidectomy (TOaST). The investigators aimed to investigate preoperative factors as indicators of difficult TOaSTs and to develop a predictive model accordingly.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Clinical diagnosis of differentiated thyroid cancer with a maximum diameter not exceeding 4 cm

Absence of suspicious lateral lymph nodes or distant metastases

Participants with high cosmetic expectations

Participants who underwent total thyroidectomy and central lymph node dissection.

Disqualifiers

Participants with fusion or fixation of lymph nodes in the neck

Participants with history of neck surgery or radiation

Participants with vocal fold fixation by preoperative fibrolaryngoscope

Participants with preoperative examination suggestive of extrathyroidal invasion

Trial population

Patients with FNA proven differentiated thyroid cancer, were willing to undergo total thyroidectomy and central lymph node dissection via transoral and submental approach. Patients were well informed about the transoral and submental approach and were aware of the potential benefits and risks. Patient consented for us to use perioperative data.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Observations on clinicopathological factors influencing the difficulty of surgery

    Other intervention

    Age, body mass index, gender, thyroid function parameters, lesion size, lesion location, ultrasound data

Treatment groups

500 Participants
are divided into 2 treatment groups
Group A: Difficult transoral and submental thyroidectomy1 intervention
Group B: Normal transoral and submental thyroidectomy1 intervention

Trial outcomes

Primary outcomes

1

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
2

Number of participants with hypoparathyroidism

a postoperative parathyroid hormone level of less than 10 pg/ml

Time frame
through study completion, an average of 1 year
3

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
4

operative time

operative time was defined as the duration from incision to closure, and was collected from anesthesia record sheet

Time frame
through study completion, an average of 1 year

Secondary outcomes

1

hospitalization

days of hospitalization

Time frame
through study completion, an average of 1 year
2

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

Other outcomes

Sponsors and contacts

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