- *Corresponding Author:
- X. Wang
Department of Minimally Invasive Thyroid surgery, Jilin Cancer Hospital, Changchun, 130001, China
|This article was originally published in a special issue: Special issue on “Animal Models & Experimental Medicine”|
|Indian J Pharm Sci 2020:82(1)spl issue4;46-50|
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To compare the therapeutic effects of open surgery and endoscopic surgery for thyroid carcinoma, 160 thyroid carcinoma patients treated in Jilin Cancer Hospital from June 2014 to April 2018 were selected as subjects and randomized into the study and the reference groups, with 80 cases in each group. The reference group was subjected to open surgery, while the study group had endoscopic surgery and the therapeutic outcome of the 2 groups was compared. The surgical indices of the 2 groups used for comparison included, operation time, intraoperative bleeding, surgical incision length and length of stay. Results indicated a significant advantage in the study group over the reference group. Degree of pain was evaluated using the visual analog scale and this score was significantly lower in the study group. The incidence of adverse reactions was significantly lower in the study group relative to the reference group. Endoscopic surgery appeared to provide better results for thyroid carcinoma patients with better safety and reliability.
Thyroid carcinoma, open surgery, endoscopic surgery, clinical efficacy
Thyroid carcinoma as a common thyroid malignancy accounts for about 1 % of systemic malignancies. Except medullary carcinoma, many thyroid carcinomas are produced in the follicular epithelial cells. Studies have shown that the numerous factors that contribute to thyroid carcinoma are closely related to regions, races, and gender. According to survey statistics, US has a high incidence of thyroid carcinoma. The 1990-2015 period witnessed increased annual incidence of thyroid carcinoma by more than 3 fold and the trend is still growing year by year[2,3]. China’s statistics show that there are about 0.8-0.9/100 000 men and 2.0-2.2/100 000 women with thyroid carcinoma. The incidence of thyroid carcinoma is on the rise owing to factors such as environmental deterioration, accelerated pace of life and changes in dietary structure[4,5]. The thyroid gland is located under the thyroid cartilage of the human neck and on both sides of the trachea. Shaped like a butterfly, it is like a shield and thus acquires its name. The thyroid is divided into left and right lobe and isthmus. The left and right lobe are located on both sides of lower part of the throat and the upper part of the organ. The upper end reaches the midpoint of the thyroid cartilage, and the lower end reaches the sixth tracheal ring, sometimes to the suprasternal fossa or substernal area. The pathogenesis of thyroid carcinoma (figure 1) is currently unclear, but it is generally believed to be linked with such factors as oncogenes and growth factors, ionizing radiation, genetic factors, iodine deficiency and estrogen. Thyroid carcinoma patients have severely degraded quality of life, which affects normal work, so it is essential to apply optimal treatment regimen to control disease progression and minimize recurrence rates so that patients have higher quality of life. Traditional surgical treatment is the open surgery. With the advancement of medical technology, endoscopic surgery has been widely employed to treat thyroid carcinoma, with good results. This study examines and compares the clinical effects of open surgery and endoscopic surgery for thyroid carcinoma, and provides the following report[6-10]. A total of 160 patients treated in Jilin Cancer Hospital from June 2014 to April 2018, who were clearly diagnosed with thyroid carcinoma (figure 2) were enrolled as study subjects. Both the patient and family members have the right to know and signed the formal informed consent. The study was approved by the hospital ethics committee.
Patients were randomized into the study group and the reference group, with 80 cases in each group. The study group consisted of 10 males and 70 females in the age range of 22-70 y, with an average age of 40.8±2.9 y. The tumor diameter was between 0.4-1.0 cm, with an average diameter of 0.8±0.1 cm. The reference group consisted of 8 males and 72 females in the age range of 24-70 y, with an average age of 42.6±2.6 y. The tumor diameter was between 0.5-1.1 cm with an average diameter of 0.7±0.2 cm. The demographic data of the 2 groups is quite comparable. The reference group was subjected to traditional open surgery. Local anesthesia was given at the neck position and clear mark was made at approximately 1.7 cm from sternoclavicular joint for parallel lateral incision. The incision extended all the way to the sternomastoideus muscle, shifted to the underlying part of the hyoid bone, and then to the upper end of the sternoclavicular joint. The tumor in the lesion area was excised and a drainage tube was placed to prevent infection. The study group was subjected to endoscopic surgery. Local anesthesia was given at the neck position, clear mark was made at 1.5 cm above the clavicle and surgical entry point was scientifically selected. Adrenaline was injected into the subcutaneous portion of the incision site. The subcutaneous tissue was cut layer by layer, the connective tissue and the subcutaneous tissue of the muscle group were separated, and the white line of the neck was cut to ensure a complete musculiossis hyoidei and thyroid muscle. The bilateral parts were dragged using leather forceps to clearly expose the thyroid area. Under endoscopy, the size, location, shape, and extent of the lesion were closely observed and then the lesion was completely removed. Strict hemostasis was performed, incision was closed layer by layer and pressure dressing was given. Corresponding antiinfective treatment was provided after the surgery. The surgical indices of the 2 groups were recorded, including operation time, intraoperative bleeding amount, surgical incision length, length of stay. The degree of pain of each patient was evaluated objectively using visual analog scale (VAS) with the highest score of 10 points and the lowest score of 0. A lower degree of pain carries a lower score. In addition, the incidence of adverse reactions in patients was recorded. Statistical analysis software used was SPSS21.0. The data was expressed as mean±standard deviation, t-test was used for comparing the groups; the count data was expressed by natural number (n) and percent (%), and χ2 was used for comparing between groups. P<0.05 indicates statistical significance
Table 1 showed the surgical indices of the 2 groups. On comparison of these indices the study group significantly had more advantage over the reference group (P<0.05). Table 2 showed the VAS scores indicating the degree of pain of the patients of both groups. Results indicated that the pain score is significantly lower in the study group compared to the reference group at 24 and 48 h after surgery (P<0.05). The ultrasonography findings of one patient in the study group before and after treatment are shown in figure 3. Table 3 listed the incidence of adverse reactions in the 2 groups and the data clearly showed that the incidence of adverse reactions is significantly lower in the study group than in the reference group (P<0.05).
Table 1: Comparison of Surgical Indicators between the Two Groups
|Group||Number of cses||Operation time (min)||Intraoperative bleeding amount (ml)||Surgical incision length (cm)||Length of stay (d)|
|P||< 0.05||< 0.05||< 0.05||< 0.05|
Table 2: Comparison of Pain Scores between the Two Groups
|Group||Case number||24 h after surgery||48 h after surgery|
|P||< 0.05||< 0.05|
Table 3: Comparison of Incidence of Adverse Reactions in the Two Groups
|Group||Number of cases||Hoarseness||Dyspnea||Incision infection||Incidence of adverse reactions|
Consensus has not yet been reached on what causes thyroid carcinoma. Studies have shown that food, stimulation and abnormal levels of hormones inside the body are important factors in the pathogenesis. Endoscopic surgery has been widely used in the treatment of thyroid carcinoma in the context of continuous development of minimally invasive techniques. Endoscopic surgery has many advantages in thyroid carcinoma treatment such as minimized trauma, reduced hospitalization time, fast postoperative recovery and with absence of scars accepted more by patients[12,13].
Endoscopic thyroidectomy, as an advanced medical technique with important range of applications, is suitable for patients with benign thyroid lesions and relatively small tumors. If the tumor diameter is large, other operations should be considered instead[14-18]. Young and middle-aged women with high incidence of thyroid carcinoma have greater requirement for cosmetic surgery. In the traditional open surgery method, the opening is 2-finger distance from the sternum, generally leaves scars of about 6 cm or longer, which affects the aesthetics. However, endoscopic surgery significantly reduces surgical incision length by taking anterior sternum as the incision position. The small surgical incision meets patients’ aesthetic needs[19-21]. In addition, with continuous innovation in endoscopic techniques and minimally invasive surgical instruments, these surgical approaches have increased in number, of which, anterior cervical approach and exterior cervical approach are commonly used. Compared with traditional open surgery, anterior cervical approach could avoid the influence of clavicle and sternum to enable direct observation of operation field, especially suitable for thyroid lobectomy, total thyroidectomy, central lymph node dissection and neck dissection. According to the present study results, comparison of surgical indices that included operation time, intraoperative bleeding, surgical incision length, length of stay between the study group subjected to endoscopic surgery and the reference group operated with traditional open surgery showed significant advantage for the study group over the reference group (P<0.05). Patient pain evaluation using VAS clearly demonstrated that the study group has a significantly lower score than the reference group (P<0.05). The incidence of adverse reactions is also significantly lower in the study group than in the reference group (P<0.05). These results clearly demonstrated the ideal nature of endoscopic surgery for thyroid carcinoma. In summary, endoscopic surgery for thyroid carcinoma could achieve better outcomes with higher safety and reliability as well as better cosmetic results. Therefore, it is worth of extensive promotion and application.
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