ObjectiveTo explore the application value of carbon nanoparticles during radical operation of differentiated thyroid cancer (DTC).MethodsThe DTC patients underwent total thyroidectomy plus neck lymph node (area Ⅳ) dissection from September 2017 to September 2019 in this hospital were retrospectively collected, who were divided into observation group and control group according to using carbon nanoparticles or not during the operation. The operation related informations [operation time, intraoperative blood loss, total drainage volume on day 3 after operation, postoperative hospitalization time, number of lymph nodes dissection (area Ⅳ), lymph node metastasis rate, and rate of parathyroid glands resected by mistake during operation] and blood calcium (Ca2+) level and parathyroid hormone (PTH) level before and after (24 h and 1 month) operation were compared between the two groups.ResultsA total of 134 patients with DTC were collected, including 76 patients in the observation group and 58 patients in the control group. There were no significant differences in baseline data such as gender, age, etc. between the two groups (P>0.05). Although there were no significant differences in terms of operation time, intraoperative blood loss, total drainage volume on day 3 after operation, postoperative hospitalization time, lymph node metastasis rate between the two groups (P>0.05), the numbers of lymph node dissection and metastasis (area Ⅳ) were more and rate of parathyroid glands resected by mistake during operation was lower in the observation group as compared with the control group (P<0.05). On hour 24 after operation, the levels of Ca2+ and PTH in the observation group were higher than those in the control group (P<0.05). On month 1 after operation, the PTH level in the observation group was still higher than that in the control group (P<0.05), but there was no significant difference in Ca2+ level between the two groups (P>0.05). ConclusionCarbon nanoparticles can better protect the function of parathyroid gland during radical operation of DTC and clean neck lymph nodes more thoroughly.
Objective To summary the experience in diagnosis and managements for primary hyperparathyroidism（PHPT）. Methods The clinical data of 73 patients with PHPT who underwent parathyroidectomy in our hospital from Jan. 2003 to Dec. 2010 were analyzed retrospectively. Results There were 1 case of hyperplasia （1.4%）， 67 cases of adenoma （91.8%）， and 5 cases of adenocarcinoma （6.8%） among the 73 cases of PHPT. The common presentations involved with pain in bones and joints in 63 cases （86.3%）， pathologic fractures in 17 cases （23.3%）， osteoporosis in 59 cases （80.8%）， fatigue in 28 cases （38.4%）， abdominal pain in 4 cases （5.5%）， urolithiasis in 17 cases （23.3%）， malignant hypertension in 1 case （1.4%） who suffered multi-endocrine neoplasm （MEN）Ⅱa， and so on. The preoperativeserum parathyroid hormone （PTH） abnormally elevated in all 73 patients， and serum calcium abnormally elevated in 59 patients （80.8%）， and alkaline phosphatase abnormally elevated in 62 patients （84.9%） before operation. The positive rate of lesion locations by ultrasonography， CT， 99Tcm-sestamibi （MIBI） scan， and the combination of 3 kinds of tests were 82.8% （53/64）， 83.3% （20/24）， 90.2% （46/51）， and 91.8% （67/73） respectively， but 6 cases were not traced preop-eratively. Parathyroidectomy was conducted to all the cases， besides， regional neck lymphadenectomy was performed for those 5 adenocarcinoma cases. Tetany in 16 cases， hoarseness in 2 cases， acute pancreatitis in 1 case， acute left heart failure in 1 case were observed after operation. Sixty nine cases were follow-up for 3-72 months （average 17.3 months）. During the followed-up period， most of them were alleviated from bone pain （43 cases） and fatigue （18 cases）within 1 month. However， the recovery of PTH and serum calcium back to normality were relatively slow. One case ofadenoma recurred， 1 case of adenocarcinoma suffered lung metastasis， 1 case of adenocarcinoma survived for 37 monthsprior to death for postoperative lung and bone metastasis， the other cases （including 1 case of adenocarcinoma developed from adenoma） were still alive and had no metastasis or recurrence by the end of follow-up. Conclusions The symptoms of PHPT vary and lack of specificity， hence， the enhancement of knowledge to this disease and screenings conducted for parathyroid function and serum calcium will increase the rate of diagnosis. Parathyroidectomy is the effective management for PHPT， and preoperatively accurate position contribute to minimal exploration.
Objective To investigate the clinical value on application of endoscopic parathyroiddectomy by gasless unilateral axillary approach, and perioperation management of patients. Methods Twenty-four patients with primary hyperparathyroidism were enrolled and were divided into open group (14 patients underwent open parathyroid surgery) and lumpectomy group (10 patients underwent endoscopic thyroidectomy by gasless unilateral axillary approach) according to the surgical method. All patients received the “5A” model management. The indexes related with perioperative conditions, postoperative incisional pain, and anterior cervical function were compared between the two groups. Results In the open group, 1 patient suffered from transient hoarseness after operation, 5 patients suffered from hypocalcemia on the first day after operation, and 6 patients suffered from temporary hypoparathyroidism. In the lumpectomy group, hypocalcemia occurred in 3 cases and temporary hypoparathyroidism occurred in 3 cases. There were no incision hematoma and infection cases occurred. There was no significant difference between the two groups in the incidence of hypocalcemia and the incidence of temporary hypoparathyroidism after operation (P>0.05). There was no case of incisional hematoma and infection, incisional pain, coughing and sputum excretion or painful swallowing with pain ≥3 in either group. The swallowing disorder index on postoperative day 3 and at 6 months, the scar assessment score and cosmetic satisfaction score at 6 months were higher in the open group than those in the lumpectomy group (P<0.05). Conclusion Patients underwent parathyroidectomy by gasless unilateral axillary approach have the advantages of good cosmetic results and preservation of the function of the anterior cervical region while safely removing the lesion.
ObjectiveTo investigate the effectiveness of probe-based near infrared autofluorescence (AF) technology in the identification and functional protection of parathyroid gland (PG) during endoscopic total thyroidectomy. MethodsWe retrospectively collected the clinical data of 160 patients who underwent total thyroidectomy with bilateral central compartment lymph node dissection due to papillary thyroid carcinoma in Chongqing General Hospital from 1 July 2023 to 31 January 2024. Among them, 80 patients who used probe-based near infrared AF technology to identify the PGs were categorized as the AF group, 80 patients who used naked eye (NE) to identify the PGs were categorized as the NE group. The number of PGs identified, inadvertently removed, preserved in situ and autotransplanted, the incidence of postoperative hypoparathyroidism, and operative time were compared between the two groups. ResultsThe incidence of transient hypoparathyroidism was significantly lower in the AF group than that of the NE group [21.25% (17/80) vs. 43.75% (35/80), χ2=9.231, P=0.002], with no cases of permanent hypoparathyroidism in either group. The AF group had significantly more PGs identified and preserved in situ than the NE group (P<0.05) , but had significantly fewer PGs inadvertently removed and autotransplanted than the NE group (P<0.05). The AF group identified the first PG earlier than the NE group (4 min vs. 5 min, P<0.001). But there was no statistically difference in the operative time between the two groups (90 min vs. 94 min, P=0.052). ConclusionThe probe-based near infrared AF technology can help surgeons better identify and protect PGs during surgery, reducing the incidence of postoperative transient hypoparathyroidism.
ObjectiveTo investigate the clinical value of fine needle aspiration cytology (FNAC) combined with washout fluid detection of parathyroid hormone (PTH) in identifying parathyroid glands during thyroid cancer radical thyroidectomy. MethodsA total of 108 patients who underwent thyroid cancer radical thyroidectomy in Rizhao Central Hospital from June 2020 to December 2022 were selected as the study subjects. During the surgery, highly suspected parathyroid tissues were punctured with fine needle aspiration. FNAC and washout fluid were collected for PTH detection. Using the results of postoperative histopathological examination as the gold standard, the accuracy of different methods in identifying parathyroid glands during surgery was analyzed. ResultsAmong the 73 positive cases, the PTH level in the washout fluid was (591.20±84.30) pg/mL, while in the 35 negative cases, it was (18.69±2.53) pg/mL. The PTH level was significantly higher in the positive cases compared to the negative cases (P＜0.05). Postoperative routine histopathological examination confirmed parathyroid tissues in 91 cases, while in 17 cases, they were confirmed as adipose tissues (11 cases) or lymphoid tissues (6 cases). In the 17 cases confirmed as non-parathyroid tissues, both two methods considered them as non-parathyroid tissues. The sensitivity of puncture eluent in detecting PTH was 80.22% (73/91), that of cytological smear was 70.33% (64/91), and that of puncture eluent combined with cytological smear was 94.50% (86/91). There was no significant difference between the sensitivity of puncture cytology smear and puncture eluent in detecting PTH (P＞0.05). The sensitivity of combined detection of the two methods was higher than that of individual detection, and the difference was statistically significant (P<0.05). ConclusionThe combined detection of PTH by fine needle puncture smear and eluent can improve the accuracy of identification of parathyroid gland during radical thyroidectomy, and is beneficial to the identification and protection of parathyroid gland during surgery.
Objective To culture primary parathyroid cells by mean of simulated microgravity, observe their basic morphological characteristics, study survival rate and secretory function of parathyroid cells, and explore more excellent culture mean of parathyroid cells. Methods There were 37 male Wistar rats, the body weight was 150–200 g. The rat was intraperitoneally injected with 1% pentobarbital sodium (50 mg/kg). The parathyroid glands were surgically excised and identified pathologically. The parathyroid gland cells were got and digested them with collagenase Ⅱ, which were divided into three groups: conventional culture group (simple parathyroid cells were cultured), polyglycolic acid (PGA) scaffold culture group (the parathyroid cells were cultured on the PGA scaffold), and simulated microgravity culture group (the parathyroid cells and PGA scaffolds were cultured in simulated microgravity environment). The parathyroid cells were cultured for 1, 3, 5 or 7 days in different culture conditions, then the parathyroid hormone (PTH) was measured, morphological characteristics of the parathyroid cell was observed under phase contrast microscope, survival rate of the parathyroid cells was calculated by acridine orange/propidium iodide staining. Results The parathyroid cell morphologies of most cells were well and center of part of cell mass was necrosis on day 7 in the conventional culture group. The most parathyroid cells were spreading toward the poles along the PGA cell scaffold in the longitudinal direction and the adjacent stents were connected by extracellular matrix on day 7 in the PGA scaffold culture group. The parathyroid cells cultured under the simulated microgravity were got round and formed clusters on day 7 in the simulated microgravity culture group. Compared with the other two groups on day 7, the PTH and the survival rate of the parathyroid cells were significantly higher in the simulated microgravity culture group (P<0.05). Conclusions Parathyroid cells cultured in simulated microgravity environment could maintain better morphology, survival rate is higher, and secretory function is better. Therefore, parathyroid cells cultured in simulated microgravity could be used as good donor cell for treatment of hypoparathyroidism. PGA scaffold could be used as a good carrier for culture of parathyroid cell.
ObjectiveTo summarize the clinical and genetic characteristics of parathyroid disease associated with CDC73 gene mutation.MethodsThe related literatures on CDC73 gene mutation and parathyroid diseases were collected and reviewed.ResultsCDC73 gene is a tumor suppressor gene which encodes parafibromin protein. CDC73 gene mutation may lead to the decrease or absence of expression of parafibromin protein. CDC73 gene mutation was directly associated with hyperthyroid-jaw tumor syndrome and 15% to 20% patients were associated with parathyroid carcinoma. Their first-degree relatives may also carry CDC73 gene mutation. Partial sporadic parathyroid carcinoma was associated with CDC73 mutation.ConclusionsCDC73 gene mutation is associated with various kinds of parathyroid diseases. Detection of CDC73 gene sequences and immunohistochemical analysis of parafibromin protein may be applied in the diagnosis and improve the prognosis of parathyroid diseases.
FromJune1989toMarch1998,11casesofprimaryhyperparathyroidism(PHP)hadbeentreatedsurgicallyin .thishospital.Thepreoperativelocalizationof9caseswereachievedbyoneortwononinvasivetechniquesincludingultrasonography,computedtomography,colorDopplerimagingand99mTcMIBIscintigraphy.Parathyroidectomyweredonesuccessfullyin10of11caseswiththepathologicalresultsofadenomain10casesandonenormalparathyroid.Theauthorsemphasize①earlyrecognitionanddiagnosiswhichcanbehelpedbythenoninvasivetechniquesmentionedaboveforlocalization,②familiaritywiththelocalanatomyespeciallyfortheectopicparathyroidtogetherwithfrozensectionbiopsyduringoperation,and③intensivemedicalcareaftersurgeryandfollowupsoastoheightenthecapacityofdiagnosisandtreatmentofthisdisease.
ObjectiveTo understand the methods of judging the blood supply of parathyroid during thyroidectomy at home and abroad in recent years. MethodThe literature on parathyroid blood supply was collected, the research progress was reviewed, and the advantages and disadvantages of related methods were analyzed. ResultsIn recent years, near-infrared fluorescence, laser speckle contrast imaging and other technologies had been applied. They showed better advantages as compared with naked eye observation. The research on parathyroid blood supply at home and abroad was still in its infancy, and more clinical samples and related equipment optimization were still needed. ConclusionFluorescence imaging technology has a certain auxiliary role in the judgment of intraoperative parathyroid blood supply and can reduce the incidence of hypoparathyroidism to a certain extent.
Objective To investigate the reliability of culture method of adult human parathyroid cells. Methods Adult human parathyroid tissue was digested by collagenase, then the original generation of cells were cultured and passaged, and their morphological changes were observed and recorded every other day. Part of the passaged cells were observed through electron microscope and its supernatant parathyroid hormone (PTH) was assayed. Meanwhile, the other part of cells were tested the parathyroid markers, including PTH, calcium-sensing receptor (CaSR) and glial cells missing-2 (GCM-2) by PCR. Results Abundant cytoplasm, mitochondria, endoplasmic reticulum and Golgi apparatus from the seventh day's passaged cells were observed by the electron microscopy, as well as, some secretory granules existing in both cytoplasm and intercellular lacuna. Also, the PTH from supernate was detected, and parathyroid specific markers, such as CaSR, PTH, and GCM2 were positive. Conclusions These trials demonstrated the adult human parathyroid cells could be harvested by collagenase digestion and the cultured. Furthermore, the cells remained good shape and kept functioning, making it a potential source for allogeneic cell transplantation to the treatment of permanent hypoparathyroidism.