ObjectiveTo investigate the clinical significance of lengthened Trocars in endoscopic thyroidectomy. MethodsThere were 102 cases of endoscopic thyroidectomy via the areola approach, which were divided into two groups:33 patients via lengthened Trocar, and 69 patients via normal Trocar. The operative time, blood loss, wound drainage, hospital stay, and postoperative complications in two groups were comparatively analyzed. ResultsCompared with the normal Trocar group, the operative time was shorter, subcutaneous separation area was smaller, blood loss was less, and postoperative drainage was less in the lengthened Trocar group(P < 0.05). The postoperative complications of lengthened Trocar group was less than normal Trocar group(P < 0.05). ConclusionsApplication of lengthened Trocars in endoscopic thyroidectomy brings benefits of less subcutaneous damage, shorte operative time, and better operation experience. This procedure is worth popularizing in clinical use.
ObjectiveTo recognize the intraoperative recognition of parathyroid gland optical technology and explore its application value in thyroid surgery to protect the parathyroid gland.MethodsLiterature review was conducted on the principle and application status of intraoperative recognition of parathyroid gland optical technology by using " thyroidectomy” " parathyroid gland” " Near-Infrared imaging” " laser speckle contrast imaging”, and " optical coherence tomography” as retrieval terms to retrieve literatures.ResultsIntraoperative optical technique alone or in combination with contrast agent could improve the recognition rate of parathyroid gland, reduce the damage of feeding vessels, and thus reduce the incidence of postoperative hypocalcemia.ConclusionsTraditional intraoperative parathyroid gland recognition methods needs to be improved in real-time protection effectiveness and accuracy, and the combination of new optical technology and contrast agent can largely make up for these shortcomings, but there are still obstacles in the promotion.
Objective To explore the protection of the structure and function around the upper pole of the thyroid gland by endoscopic thyroidectomy combined with nerve detection through the gasless unilateral axillary approach. Methods From January 2019 to June 2020, 48 thyroid patients who underwent the gasless unilateral axillary approach combined with the endoscopy and nerve detection technology in the Department of Head and Neck Surgery of Zhejiang Provincial People’s Hospital were reviewed as the endoscopic group, and 53 thyroid patients underwent open surgery combined with the endoscopy and nerve detection technology as the open group. The protection of the functional structure of the suprathyroid pole were compared. Results In terms of operation time, the endoscopic group was longer than that of the open group (67.5 min vs. 54.1 min, P=0.001). There was no statistical difference between the two groups in terms of postoperative hospital stay and blood loss (P>0.05). Forty-seven patients with the endoscopic thyroid surgery through the gasless unilateral axillary approach effectively detected the superior laryngeal nerve (47/48, 97.9%), which was higher than that of the open group (40/53, 75.5%), P=0.003, and the exposure rate of hypoglossal nerve descending branch in the endoscopic group was also higher [31.3% (15/48) vs. 3.8% (2/53), P=0.001]. In the endoscopic group, the superior parathyroid gland was kept in situ during the operation, and there was no change of voice and cough after the operation. In the open group, there were 2 cases of autologous transplantation of the upper pole parathyroid gland, 2 patients had voice changes, and 1 case had partial upper pole banded muscle incision. There was no significant difference in the incidence of nerve injury complications, the rate of autologous transplantation of the upper pole parathyroid gland and the rate of anterior cervical banded muscle injury between the two groups (P>0.05). In addition, there was no significant difference in the levels of parathyroid hormone, blood calcium, blood magnesium and blood phosphorus between the two groups before/after operation (P>0.05). Conclusion During the endoscopic thyroidectomy through the gasless unilateral axillary approach, the nerve monitoring technology is combined with the exploration and protection of the superior laryngeal nerve on the surface of the medial cricothyroid muscle of the upper pole of the thyroid, and the fine capsule anatomy technology is used to protect the superior parathyroid gland in situ, which can more effectively expose the external branch of the superior laryngeal nerve. It is conducive to the protection of the structures around the upper pole.
ObjectiveTo explore therapeutic efficacy of parathyroidectomy (PTX) in treatment of secondary hyperparathyroidism (SHPT) in patients with end-stage renal disease.MethodsThe clinical data of 50 patients who underwent PTX for uremic SHPT from January 2016 to March 2018 were collected retrospectively. The changes of serum calcium, phosphorus, and intact parathyroid hormone (iPTH) before the surgery and 1 d, 7 d, 1 month, 3 months and 12 months after the surgery were analyzed. In addition, the improvement of clinical symptoms together with the postoperative recurrence and complications were observed.ResultsTen patients underwent the subtotal PTX (SPTX), 5 cases underwent the total PTX (TPTX), and 35 cases underwent the TPTX with autotransplantation (TPTX+AT). The PTXs were performed successfully in 47/50 (94.0%) patients. After the PTX, the bone pain and skin itching were alleviated, 3 cases had the temporary injury of recurrent laryngeal nerve and the hypoparathyroidism was found in 1 case. The levels of postoperative serum iPTH, calcemia, and phosphorus were lower than those at the preoperative level, the differences were statistically significant (P<0.050). The postoperative hypocalcemia was frequently seen in 38/50 (76.0%) patients, and it was effectively controlled by the intravenous calcium. After the follow-up for 3 months, the SHPT recurred in 5 cases (10.0%), of whom 3 cases underwent the TPTX+AT. The relapse rate in 12 months after the operation was 9.1% (2/22). There were no statistical differences among the three PTXs methods in the operation successful rate (χ2=3.351, P=0.211) and relapse rates in 3 months (χ2=1.321, P=0.753) and 12 months (χ2=1.794, P=0.411) after the operation.ConclusionsIn China, TPTX+AT is more common than SPTX and TPTX in clinical application. Operations of SPTX, TPTX, and TPTX+AT are safe and effective therapeutic methods for uremic SHPT, which can significantly improve biochemical indicators and quality of life of patients.
Thyroid disease is more common in young women. Traditional surgical scars may affect the appearance of patients and cannot fully meet the cosmetic needs of patients. With the advancement of surgical techniques, endoscopic thyroid surgery has developed rapidly. Trans oral endoscopic thyroidectomy vestibular approach is feasible and safe to achieve no scar on the body surface, but there are some unavoidable limitations, such as postoperative numbness and discomfort in the center of the chin region. As a new approach to thyroid surgery, trans oral endoscopic thyroidectomy submental access has the same advantages as the trans oral vestibular approach from top to bottom, and can reliably and thoroughly dissect lymph nodes in the central area (especially area Ⅶ), allowing larger specimens to be taken out and expands the indications for surgery, minimizes flap detachment, and avoids jaw pain and numbness. Trans oral endoscopic thyroidectomy submental access is an innovation in the concept of thyroid surgery, which achieves minimally invasive and aesthetic results on the premise of ensuring the quality of the surgery and curing the disease. We reviewed the history, advantages and disadvantages of trans oral endoscopic thyroidectomy submental access.
Objective To assess clinical value of thyroidectomy by meticulous capsular dissection technique through neck incision approach in treatment of 75 patients with type Ⅰ substernal goiter. Methods The clinical data of 75 patients with type Ⅰ substernal goiter in the Department of General Surgery of the Central Hospital of Xiaogan from April 2013 to April 2017 were retrospectively analyzed. These patients received the surgical resection by the meticulous capsular dissection technique with an ultrasonic scalpel and a bipolar coagulation forcep through neck incision approach. Results There were 12 Hashimoto thyroiditis, 10 thyroid adenoma, 41 nodular goiter, and 12 thyroid carcinoma in the 75 patients with type Ⅰ substernal goiter. Five cases underwent the unilateral total thyroidectomy. Fifty-eight cases underwent the bilateral total thyroidectomy. The bilateral total thyroidectomy plus central lymph node dissection were performed in the 9 patients with thyroid carcinoma, the bilateral total thyroidectomy plus central lymph node dissection plus affected ipsilateral neck lymph node dissection were performed in the 3 patients with thyroid carcinoma. The average operative time was 100 min, the average intraoperative blood loss was 50 mL, the average postoperative hospital stay was 5 d. The rate of parathyroid injury was 2.7% (2/75), the rate of hypocalcemia caused by parathyroid injury was 2.7% (2/75). There were 3 cases (4.0%) of unilateral recurrent laryngeal nerve injury, 1 case (1.3%) of the outer branch of the upper laryngeal nerve injury. There were 2 cases of tracheal partial softening in the 75 patients. None of postoperative bleeding and seroma happened. No death and the tumor recurrence and metastasis of patients happened during follow-up period. Conclusions Preliminary results in this study show that operation of meticulous capsular dissection technique with an ultrasonic scalpel and a bipolar coagulation forcep through neck incision approach in treatment of type Ⅰ substernal goiter is safe and feasible, it could effectively reduce postoperative complications of thyroidectomy, and protect parathyroid and it’s function, recurrent laryngeal nerve, and superior laryngeal nerve.
Objective To understand anatomy of parathyroid gland and explore its application value in protection of parathyroid gland function during thyroidectomy. Methods The literatures, which were associated with the parathyroid anatomy and hypoparathyroidism were collected. The origin, function, anatomical location, number, blood supply, lymphatic system of the parathyroid gland and its relationship with surrounding tissues of parathyroid gland and its clinical significance in the thyroidectomy, were reviewed. Results The position of the superior parathyroid gland was relatively constant, and the inferior parathyroid gland was more likely to be ectopic. The number of the parathyroid gland was uncertain. The mainstream view was that the arterial supply of the parathyroid glands was mainly ensured by the inferior thyroid artery, a few by anastomosis of the superior and inferior thyroid arteries, or by the superior thyroid artery. However, the alternative view was that the blood supply of the parathyroid gland was not mainly derived from the inferior thyroid artery. The parathyroid gland was not easily distinguished from the adipose tissue and lymph node. Whether there was an independent lymphatic system in the parathyroid gland was still controversial. In the thyroidectomy, the parathyroid gland and its blood supply were reserved or protected by distinguishing from the Zuckerkandl tubercle, recurrent laryngeal nerve, and parathyroid specific attachment fat, which were identified by utilizing of the nanocarbon, loupe magnification, etc.. Especially in the central lymph neck dissection, the main thyroid artery trunk and its important branches should be carefully dissected or retained through the gentle capsular dissection and the correct use of energy devices for vessel sealing. The parathyroid gland in situ was reserved according to the parathyroid type. If it was not possible to be preserved, the parathyroid autotransplantation was necessary during the thyroidectomy. Conclusions Understanding origin and location of parathyroid gland, it could provide a direction for searching parathyroid gland during thyroidectomy. Being familiar with blood supply of parathyroid gland makes it possible to protect blood vessel and preserve parathyroid gland. Gentle capsular dissection, rational use of energy device, and indocyanine green angiography seem to be more important. Number of parathyroid gland allows us to treat each parathyroid gland as the last one, if it is not preserved in situ , parathyroid gland need to be autografted to avoid hypoparathyroidism.
ObjectiveTo introduce patients with long-term hypocalcemia and normal parathyroid hormone (PTH) values after total thyroidectomy, and to analyze the possible causes of this phenomenon. MethodsThe medical records of 1 010 consecutive patients with total thyroidectomy treated in the Center for Diagnosis and Treatment of Thyroid Disease, the First Affiliated Hospital of Kunming Medical University from January 2019 to December 2020 were collected. Seven patients with normal PTH and blood calcium before operation and at least 2 times of PTH with hypocalcemia detected more than 6 months after operation were followed-up to understand the symptoms of hypocalcemia, vitamin D level and calcium consumption. ResultsSeven patients with thyroid papillary carcinoma underwent total thyroidectomy without parathyroid autotransplantation, and there were 6 cases with mild deficiency or insufficient of vitamin D before operation. The follow-up time was 12–28 months, and the median follow-up time was 19 months. Seven patients developed hypocalcemia after continuous administration of calcium and calcitriol, and vitamin D levels remained mild deficiency or insufficient, PTH decreased by more than 50% in 6 patients one year after operation compared with that before operation. ConclusionsPatients with long-term normal PTH values and hypocalcemia after total thyroidectomy have obviously lower PTH levels than those before operation. The possible factors are parathyroid damage during operation and vitamin D deficiency. Such these patients should be more properly referred to as “parathyroid insufficiency”.
ObjectiveTo discuss clinical significance of total endoscopic thyroidectomy (TET) via chest-breast approach. MethodsThe clinical data of 890 patients with thyroid diseases from September 2008 to September 2015 in this hospital were analyzed retrospectively. These patients were divided into TET group (received TET, n=420) and traditional group (received traditional thyroidectomy, n=470). The data of operation and postoperative recovery were compared between these two groups. ResultsThere was no significant difference between the TET group and the traditional group in the operation time [(73.571 4±28.533 9) min versus (70.212 8±27.199 8) min, t=1.80, P=0.072 7], bleeding volume [(30.714 3±14.225 1) mL versus (29.106 4±13.559 1) mL, t=1.73, P=0.084 8], postoperative drainage [(60.000 0±27.287 9) mL versus (56.595 7±27.803 5) mL, t=1.84, P=0.066 2], postoperative hospitalization time [(5.333 3±1.085 1) d versus (5.446 8± 1.089 0) d, t=1.55, P=0.120 4], postoperative 24 h pain score [(5.333 3±2.308 7) points versus (5.404 3±2.182 1) points, t=0.47, P=0.637 8] and postoperative injury rate of recurrent laryngeal nerve [0.714 2% (3/420) versus 0.851 1% (4/470), x2=0.053 2, P=0.817 6] and hypoparathyroidism rate [0.476 2% (2/420) versus 0.851 1% (4/470), x2=0.465 5, P=0.495 1]. The score of aesthetic effect of incision on day 7 after operation in the TET group was significantly higher than that in the traditional group [(7.809 5±1.296 9) points versus (3.361 7±1.391 8) points, t=49.14, P < 0.000 1]. ConclusionTET is safe and effective, and could improve cosmetic effect for patients with thyroid diseases.
Objective To systematically evaluate the effectiveness and safety of minimally invasive video-assisted thyroidectomy (MIVAT) and conventional open thyroidectomy (COT) in treatment of thyroid carcinoma without lymph node metastasis. Methods Databases including PubMed, EMbase, The Cochrane Library (Issue 3, 2015), WanFang, CBM, VIP and CNKI were searched to collect the randomized controlled trails (RCTs) and non-RCTs about MIVAT and COT in treatment of thyroid carcinoma without lymph node metastasis. The retrieval time was from inception to October 2015. The studies were screened according to the inclusion and exclusion criterias, and the data was extracted and the quality of studies was evaluated by 2 reviewers independently. Then the Meta-analysis was conducted by using RevMan 5.2 software. Results A total of 13 non-RCTs involving 3 083 cases were included. The results of Meta-analysis showed that: compared with COT group, operative time of MIVAT group was longer (MD=31.36, 95% CI: 27.68-35.03, P<0.05), hospital stay (MD=-0.16, 95% CI: -0.28--0.04, P=0.01) and length of scar (MD=-1.51, 95% CI: -1.63--1.39, P<0.05) of MIVAT group were shorter, but there was no significant difference in the incidences of transient hypocalcemia (OR=1.29, 95% CI: 0.93-1.78, P=0.13), transient laryngeal nerve palsy (OR=1.42, 95% CI: 0.93-2.17, P=0.11), hemotoma (OR=1.21, 95% CI: 0.64-2.29, P=0.56), recurrence (OR=0.61, 95% CI: 0.28-1.33, P=0.22), number of retrieved central lymph nodes (MD=-0.10, 95% CI: -0.98-0.78, P=0.82), and the size of tumors (MD=-0.02, 95% CI: -0.06-0.02, P=0.39) between the 2 groups. Conclusion MIVAT is safe and feasible in treatment of thyroid carcinoma without lymph node metastasis when its indications are strictly controlled.