Objective To explore the feasibility and reliability of laparoscopic assisted thyroidectomy. Methods A transversal 2.0 cm incision was made at the site 1.0 cm above the sternal notch. By using a harmonic scalpel under a 5 mm laparoscope, the thyroid glands and involving blood vessels were dealt with by either “coagulation-dissection-suction” technique or “dissection-coagulation-disconnection” technique to complete thyroid enucleation or lobectomy. Results There were 20 cases of adenoma (nodule) excision and 6 cases of unilateral lobectomy. The operation time was 80~130 min (mean, 100 min). The intraoperative blood loss was 10~40 ml (mean, 20 ml). No surgical complications occurred. Follow-up checkups in 23 cases for 1~)20 months (mean, 9 months) found a satisfactory cosmetic result and no recurrence. Conclusions Thyroidectomy under laparoscope is safe and reliable. This procedure offers a shorter incision, less invasion and better cosmetic results as compared with conventional thyroidectomy.

Adult ; Aged ; Body Mass Index ; Case-Control Studies ; Humans ; Male ; Middle Aged ; Neck ; anatomy & histology ; Sleep Apnea, Obstructive ; pathology ; physiopathology ; Young Adult

Objective To explore the safety and invasion of endoscopic thyroidectomy(ET).Methods A total of 156 cases of benign thyroid diseases were surgically treated from January 2003 to December 2005,including 64 cases of endoscopic thyroidectomy(Endoscopic Group) and 92 cases of traditional thyroidectomy(Traditional Group).The operation time,hemorrhage volume,length of incision,Visual Analogue Scale(VAS) scores for pain severity and cosmetic appearance,analgesic requirements,postoperative hospital stay,hospitalization costs,wound infection rate,and recurrent rate were compared between the two groups,respectively.Results The operation was successfully completed in both of groups.No hemorrhage,hoarseness,or hypocalcemia was encountered.Wound hydrops occurred in 4 cases in the Traditional Group.As compared with the Traditional Group,the Endoscopic Group had less blood loss(15?10 ml vs 20?15 ml;t=-2.330,P=0.021),lower VAS pain scores(2.5?1.0 vs(5.0?)1.6;t=-11.079,P=0.000),higher VAS cosmetic scores(8.0?1.5 vs 2.0?1.2;t=27.696,P=0.000),and less analgesic requirements(10 cases vs 28 cases;?~2=4.493,P=0.034),but longer operation time(80?20 min vs 70?30 min;t=2.330,P=0.021) and higher hospitalization costs(5 352.7?978 yuan vs 4 738.5?672 yuan;t=4.651,P=0.000).Follow-up observations for 2~30 months(mean,13 months) revealed recurrence in 2 cases in the Endoscopic Group and 3 cases in the Traditional Group.Conclusions As compared with traditional operation,endoscopic thyroidectomy has advantages of minimal invasion,early recovery,short hospitalization time,and high safety,being an ideal option for benign thyroid diseases.

Adenocarcinoma, Clear Cell ; pathology ; Adult ; Female ; Humans ; Thyroid Neoplasms ; pathology

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Hemopneumothorax ; surgery ; Humans ; Infant ; Male ; Middle Aged ; Paracentesis ; Thoracoscopy

Objective To observe the immunologic effect of lactoferrin on repeated respiratory infection(IRRI) in children.Methods Ninety-eight cases of IRRI were divided into two groups randomly.The control group (48 cases)were treated with routine therapy.The treatment group(50 cases) were treated with lactoferrin based on routine therapy for 2-3 months.T cell subgroup,immunoglobulin and complements were determined before and after treatment.Results Total effective rates in treatment group and control group were 86% and 22.9% respectively.The therapeutic efficacy in treatment group was significantly higher than that in control group(P

Objective To explore the optimized range of normal tissue ablation around the tumor by HIFU in combination with UCA for VX2 liver tumors in rabbits. Methods In this study,51 rabbit models with implanted fiver VX2 tumors were randomly divided into 3 groups:ablating the tumor only(group A)、ablating the tumor and 2 mm eircumferential normal tissue(group B)、and 4 mm normal tissue around the tumor(group C).After HIFU+UCA treatment,the pathology of the targeting tissues,the level of serum ALT,the metastases in the liver、lungs and abdominal cavity,and the survival time were compared with each other. Results After treatment coagulative necrosis was observed in all the target tissues.Serum ALT level between each two groups were statistically different on d3 and d5(F=12.933、18.37,P＜0.01、＜0.01),and the level of ALT in group C was the hightest.The ALT level in group A was significantly higher than group B or group C on the 14th day(F=17.2,P＜0.01).Metastases in group A was significantly higher than group B or group C,and there were no statistically different between group B and C (P=0.353、0.332、0.380).The survival time both in group B and group C were significantly longer than group A(48±13.6,51±12.1 vs 29±5.4),and there were no statistically difference between group B and C(P＞0.05). Conclusions Tumor eradication can be significantly promoted when 2mm normal liver tissue around the tumor is ablated by HIFU+UCA.

Objective To prepare a thrombus-targeted ultrasonic contrast agent and to investigate its targeted ability to fresh blood clots. Methods We first synthesized FITC-KGDS-Palm compound, and then prepared thrombus-targeted microbubbles using "ultrasound & high speed shearing method".Fluorescence labeling thrombus-specific peptides and KGDS,directed at the activated glycoprotein(GP)Ⅱb/Ⅲa receptor of platelets were attached to the surface of lipid microbubbles. The concentration and size of TUCA were measured by Malvern Zeta Sizer Nano-ZS590 and Coulter counter.Immunofluorescence was applied to confirm the conjugation.The conjunct ratio was assessed by flow cytometer (FCM).Results The KGDS-TUCA was straw yellow turbid liquor,and the concentration was 1.5×10~9/mL,and the average size was 1.5 μm. The targeted microbubbles conjugated with the thrombus-specific peptides showed bright green rings by fluorescence microscope.FCM demonstrated that the wavelength of shell of KGDS-TUCA changed greatly,and the conjunct ratio was 90.04%.In vitro study showed KGDS-TUCA remained stable for 48 h at 4 ℃ and target-attached to blood clots and showed good stability.Conclusion The ultrasound & high speed shearing method to prepare TUCA is easy and in favor of purification.KGDS-TUCA has high specific biological activity.The conjunct ratio and stability of KGDS-TUCA are excellent.

Objective To characterize the spinal motion of 6 degrees of freedom (6DOF) under the fulcrum bending in Lenke type 1 adolescent idiopathic scoliosis (AIS) patients using 3D image volume fusion technique.Methods Ten volunteers with Lenke type 1 AIS were examined by the Gemstone Spectral Imaging to obtain their T1-S1 vertebral morphological data in the supine position and fulcrum bending position.With the computer software,images of 2 different positions were fused with the 3D image to obtain in vivo kinematics data of each vertebral body in the target area.Results In the apical vertebrae (AV) region,the main range of motion in the fulcrum bending position ranged from-2.57°± 0.95° to-1.37°± 0.65°,showing significant differences between segments (P ＜ 0.05);along the vertical axis the coupling rotation ranged from-2.71° ± 0.48° to-1.27° ± 0.49°;along the coronal axis,the coupling flexion and extension ranged from 0.19° ± 0.85° to 1.51° ± 0.42°.In the upper end vertebrae (UEV) area,the main ROM ranged from-2.20° ± 1.13° to-1.91° ± 0.76°,showing no significant differences between the 3 segments (P ＞ 0.05);along the vertical axis,coupling rotation ranged from 0.18°±0.47° to 1.35°±0.52°;along the coronal axis,coupling flexion and extension ranged from 1.62° ± 0.41° to 2.07° ± 0.37°.In the lower end vertebrae (LEV) region,the main movement ranged from-0.79°± 0.63° to 0.73°± 1.09°,showing significant differences between the 3 segments (P ＜ 0.05);along the vertical axis,the coupling rotation ranged from-1.62°± 1.05° to-0.60°± 0.60°;along the coronal axis,the coupling flexion extension ranged from -1.41° ± 0.87° to-0.75° ± 0.66°.Conclusionts In the fulcrum bending position,Lenke type 1 AIS shows a unique motion and coupling mechanism in the spine.The coupling rotational movement in the UEV region is at the same side as the lateral flexion movement.The coupling rotational motion in the AV and LEV regions is opposite the lateral flexion movement.

So far there exists no corresponding quality test procedures and grading standards for the seed of Prunus humilis, which is one of the important source of base of semen pruni. Therefor we set up test procedures that are adapt to characteristics of the P. humilis seed through the study of the test of sampling, seed purity, thousand-grain weight, seed moisture, seed viability and germination percentage. 50 cases of seed specimens of P. humilis tested. The related data were analyzed by cluster analysis. Through this research, the seed quality test procedure was developed, and the seed quality grading standard was formulated. The seed quality of each grade should meet the following requirements: for first grade seeds, germination percentage ≥ 68%, thousand-grain weight 383 g, purity ≥ 93%, seed moisture ≤ 5%; for second grade seeds, germination percentage ≥ 26%, thousand-grain weight ≥ 266 g, purity ≥ 73%, seed moisture ≤9%; for third grade seeds, germination percentage ≥ 10%, purity ≥ 50%, thousand-grain weight ≥ 08 g, seed moisture ≤ 13%.
Cluster Analysis ; Germination ; Prunus ; growth & development ; Seeds ; physiology