The inspiratory impedance threshold device (ITD) was put forward by Lurie in 1995, and was assigned as a class Ⅱa recommendation by the International Liaison Committee on Resuscitation (ILCOR) resuscitation guidelines in 2005. The ITD is used to augment negative intrathoracic pressure during recoil of the chest so as to enhance venous return and cardiac output, and to decrease intracranial pressure. In the recent years many researches on the ITD have been1 carried out, but all the researches can not take out a clear evidence to support or refute the use of the ITD. This paper introduces the structure and working principle of the ITD in detail, the research results and the debates about the use of the ITD for the past years.
Objective To summarize the progress of the application of ultrasound-guided thermal ablation for treatment of papillary thyroid microcarcinoma (PTMC). Methods The relevant literatures of thyroid nodules treated by ultrasound-guided thermal ablation were reviewed by adopting the methods of literature review. Results In conditions of grasping the therapeutic indication strictly and evaluating preoperative various aspects sufficiently, it reveals a certain feasibility and validity applying ultrasound-guided thermal ablation in the treatment of PTMC classified in the low-risk group. Conclutions Possessing the advantages of minimal invasive techniques, low-risks, beauty and rapidness, ultrasound-guided thermal ablation might be recommended as an alternative to a low-risk PTMC patient who is at high risk in general anaesthesia operation or intolerant to open operation.
ObjectiveTo explore the role of preoperative evaluation indicators for decision-making on treatment modalities in papillary thyroid microcarcinoma (PTMC) with intermediate- and high-risk. MethodThe recent pertinent literatures on studies of risk factors influencing PTMC were collected and reviewed. ResultsThe surgical treatment was advocated for the PTMC with intermediate- and high-risk. However, the intraoperative surgical resection range and the postoperative prognosis of patients were debated. The malignancy of cell puncture pathology was a key factor in determining the surgical protocol. The patients with less than 45 years old at surgery, male, higher body mass index, higher serum thyrotropin level, and multifocal and isthmic tumors, and nodule internal hypoecho, calcification, unclear boundary, and irregular morphology by ultrasound, as well as mutations in BRAFV600E and telomerase reverse transcriptase gene were the risk factors for preoperative evaluation of PTMC with intermediate- and high-risk. ConclusionsAccording to a comprehensive understanding of preoperative risk factors for PTMC with intermediate- and high-risk, it is convenient to conduct an accurate preoperative evaluation and fully grasp the patients’ conditions. Clinicians should formulate individualized surgical treatment plans for patients based on preoperative assessment and their own clinical experiences.
目的 探讨慢性甲状腺炎合并亚急性甲状腺炎患者的临床特征，明确其诊断方法，以减少临床误诊率。方法 回顾性分析2008年6月至2009年12月期间吉林大学中日联谊医院甲状腺外科行手术治疗的5例慢性甲状腺炎合并亚急性甲状腺炎患者的临床资料，包括病史、症状、体征、临床诊治过程、临床辅助检查结果（甲状腺功能检查、彩色多普勒超声检查、核素扫描等）的特点及病理特征。结果 5例患者中仅1例患者术前伴有间断发热和颈部疼痛病史，另外4例患者均无甲状腺炎的典型临床表现。5例患者临床诊治过程较长，病程迁延，平均病程6.8个月，药物对症治疗效果欠佳，症状及彩色多普勒超声检查结果无明显改善，均因术前不能除外恶变情况而行手术治疗。术中及术后病理检查结果均证实为慢性甲状腺炎合并亚急性甲状腺炎。结论 慢性甲状腺炎合并亚急性甲状腺炎临床诊断较困难，病程迁延，易被误诊，必要时可行穿刺病理学检查以明确诊断。
ObjectiveTo investigate the condition of neck lymph node metastasis and related factors in thyroiditis coexisting thyroid cancer, and make clear the indication of neck lymph node dissection. MethodsA retrospective cohort study was conducted with the clinical data of 147 patients with thyroiditis coexisting thyroid cancer who underwent radical resection of thyroid cancer (total thyroidectomy or subtotal thyroidectomy) and neck lymph node dissection, including age, gender, tumor size, number of focuses, and lymph node metastasis. Results Among 147 patients, 65 patients with neck lymph node metastasis (44.22%), central cervical lymph node metastasis rate was 36.05% （53/147）， which was higher than that of lateral lymph node metastasis rate (20.41%, 30/147), Plt;0.05. Neck lymph node metastasis rate was correlated with patient’s gender and tumor size （Plt;0.05）, while it was not correlated with patient’s age and number of focuses (Pgt;0.05). ConclusionCentral neck lymph node metastasis rate is higher in patients with thyroiditis coexisting thyroid cancer, then routine prophylactic central neck lymph node dissection is significant. Patient’s gender and tumor size are correlated with neck lymph node metastasis. When tumor is larger or in male, ipsilateral lymph node dissection should be considered to done.
ObjectiveTo summarize the research progress of related genes in Hashimoto’s thyroiditis with papillary thyroid carcinoma.MethodLiteratures about Hashimoto’s thyroiditis with papillary thyroid carcinoma were reviewed by searching the literatures in domestic and foreign database.ResultsIn recent years, the incidence of Hashimoto’s thyroiditis with thyroid carcinoma (especially papillary thyroid carcinoma) was on the increase, the two might have the same molecular pathology mechanism.ConclusionThere is a close association between Hashimoto’s thyroiditis and papillary thyroid carcinoma, the common molecular genetic changes suggest that Hashimoto’s thyroiditis may have a correlation with papillary thyroid carcinoma.
ObjectiveTo explore the value of ultrasound-guided core needle biopsy (CNB) in diagnosis of thyroid nodules. MethodsThe clinical data of 347 patients with thyroid nodules who underwent ultrasoundguided CNB were retrospectively analyzed, and the results of CNB pathology were compared with postoperative wax pathology results. ResultsAll patients completed CNB successfully and satisfaction rate for tissue samples was 100%. After CNB, local hematoma occurred in two cases and relieved by conservative therapy. The CNB pathology results of 347 cases of patients were as follows: 117 cases were malignancy, including papillary thyroid cancer in 115 cases, undifferentiated adenocarcinoma in 1 case, and squamous cell carcinoma in 1 case; 230 cases were benign, including thyroiditis in 53 cases, and nodular goiter in 141 cases, adenoma in 16 cases, and nodular goitre coexisting thyroiditis in 20 cases. In 132 cases of patients underwent surgery including 113 cases of malignancy and 19 cases of benign disease, the CNB pathology results in 127 cases were consistent with postoperative wax pathology results and false negative occurred in 5 cases. The diameter of thyroid nodules were not more than 0.5 cm in 4 cases, 0.5-1.0 cm in 59 cases, 1-2 cm in 46 cases, and more than 2 cm in 23 cases, and the accuracy rate of CNB pathology results was 75.0%（3/4）, 98.3%（58/59）, 97.8%（45/46）, and 91.3%（21/23）, respectively, which was the highest in 0.5-2.0 cm. The accuracy, sensibility, specificity, positive predictive value, negative predictive value, failure rate, and misdiagnosis rate of ultrasound-guided CNB for differential diagnosis of thyroid malignant nodules from benign nodules were 96.21% (127/132), 95.76% (113/118), 100% (14/14), 1 (113/113), 0.74 (14/19), 4.24%(5/118), and 0 (0/14), respectively. ConclusionUltrasound-guided CNB has important value on differential diagnosis of thyroid nodules, and important guiding significance on treatment of thyroid diseases.