Atrial fibrillation (AF)is a strong risk factor for ischemic cerebral stroke.Some inherent defects of War-farin limit its clinic application,which accelerates research and development of new oral anticoagulants,such as Dabigatran,Apixaban,Rivaroxaban and Edoxaban etc..This article made an overview for these.

Objective To analyze the clinical features of differentiated thyroid cancer diagnosed during pregnancy or one year after delivery.MethodsA total of 234 women with differentiated thyroid cancer were treated from January 2001 to January 2011.Cases were divided into three groups according to the time of tumor diagnosis( group 1,no pregnancy history; group 2,during pregnancy or in the first year after delivery;group 3,longer than 1 year after the delivery).ResultsThe thyroid nodule was asymptomatic and discovered on routine examination more often in group 2(78.7％ ) than other two groups (P =0.02).There were no significant difference among three groups in age,hospitalization time,operation time,operation method,tumor type,primary tumor stage and mortality. But more patients in group 2 were suffering from extrathyroid invasion ( P =0.024 ),multi-focal cancer ( P =0.023 ),larger cervical lymph node ( P =0.021 ),later regional lymph node stage (P =0.020 ) and higher local recurrence (P =0.001 ).By stepwise logistic regression analysis,pregnancy is one of the factors impacting on local recurrence rate ( P =0.045 ).ConclusionsPregnancy does not affect the mortality of the differentiated thyroid cancer,but the incidence of extrathyroid invasion,multi-focal cancer,cervical lymph node metastasis,local recurrence is higher in patients with differentiated thyroid cancer diagnosed during pregnancy.

Objective To evaluate the clinical efficacy and safety of retroperitoneal laparoscopic pyelolithotomy in the treatment of intrarenal pelvic staghorn calculus or multiple renal calculi. Methods Fifteen patients(9 males and 6 females)with average age of 40 years old were treated. The diameters of the calculi were from 1.5 cm to 3.7 cm. Three trocars were used in this procedure as rou-tine. The renal sinus was exposed by separating the pelvis from outside to inside until reaching the in-fundibulum of the renal calyx. Then the renal calyx was cut open and the calculus was taken out. Double J stent was placed in the ureter and the incision of pelvis was closed by 3-0 absorbable suture. The drainage tube was pulled out 3-4 d post-operatively according to the drainage quantity. Double J stent was then pulled out 2 weeks after surgery. Results All the 15 procedures were successfully completed. The average operation time was 170 min and the average post-operative hospital stay was 7 d. During the 3-15 months' follow-up, 2 patients had calculus remnants with the size of 0. 2-0.5cm in diameter. Conclusions Retroperitoneal laparoscopic pyelolithotomy provides a minimally inva-sive treatment option in patients with intrarenal pelvic staghorn calculus or multiple renal calculi. It has the advantages of good exposure, little bleeding, small incision and fast recovery.

Objective: To explore the effect of single-nostril transsphenoidal approach on pituitary adenoma. Methods: We retrospectively analyzed 46 cases of pituitary tumors treated with single-nostril transsphenoidal approach and the effects and complications of surgery.Dunng the surgery,a nasal speculum was inserted through right nostril slowly towards the anterior wall of sphenoid sinus.A nasal mucosa incision of about 1.5cm was made in the right nasal cavity at the level of the middle nasal turbinate.With a fracture of the bony septum,a space was developed between the bilateral nasal mucosa and bony septum to the sphenoid sinus.Then,the face of the sphenoid sinus was exposed.The remainder of the bony septum,the anterior sphenoid sinus wall,and the sphenoid mucosa were removed.The antenor sphenoidotomy should be less than 1.5cm wide.After confirming the tumor by dural puncture,a cross incision of dura was made and the tumor was removed.The saddle was usually Collapsed and visible after total tumor removal.When the tumor was resected,sevaral gelatin sponges were stuffed into the Surgical cavity to stop bleeding. Results: Thirty-four cases had total resection and 12 cases had subtotal resection.No deaths or disability occurred.Hormone levels in almost all patients were improved.Seventeen cases had a sign of diabetes insipidus.Electrolyte disturbance occuwed in 5 cases.NO postoperative cerebrospinal fluid rhinorrhea was observed. Conclusion: Single-nostril transsphenoidal approach has many advantages in treating pituitary adenomas such as simplified approach,brief technology and high security.

Objective To evaluate the efficacy and safety of modified transurethral plasmakinetic enucleation of prostate (M-TPEP) combined with cystolithectomy in elderly patients with high risk of large volume benign prostatic hyperplasia (BPH) complicated with large urinary bladder calculi. Methods Seventy-one patients with high risk of large volume BPH complicated with large urinary bladder calculi were selected, and the patients were treated with M-TPEP combined with cystolithectomy. The operation time, intraoperative blood loss, hospitalization time, complications, and the maximum urinary flow rate (Qmax), post-void residual volume (PVR), serum potassium, international prostate symptom score (IPSS), quality of life (QOL) score preoperative and postoperative 3 months were recorded. Results Seventy-one patients successfully completed the operation, and no death occurred. The operation time was (75.48 ± 6.51) min, intraoperative blood loss was (82.63 ± 10.08) ml, and postoperative hospitalization time was 5-7 d. Incidence of intraoperative capsule perforation was 2.82% (2/71), incidence of postoperative temporary urinary incontinence was 7.04% (5/71), incidence of urethral and bladder irritation after operation was 8.45% (6/71), and incidence of postoperative wound infection was 2.82% (2/71). The PVR, IPSS and QOL score 3 months after operation were significantly lower than those before operation: (6.89 ± 0.74) ml vs. (205.13 ± 40.08) ml, (2.71 ± 0.45) scores vs. (28.62 ± 3.57) scores and (1.36 ± 0.24) scores vs. (4.93 ± 0.38) scores, the Qmaxwas significantly higher than that before operation: (22.46 ± 2.97) ml/s vs. (5.24 ± 0.43) ml/s, and there were statistical differences (P＜0.01);there was no statistical difference in serum potassium between before operation and 3 months after operation (P＞0.05). Conclusions M-TPEP combined with cystolithectomy has short operation time, quick recovery after operation and low complication rate. It is a proper operative method for the elderly patients with high risk of large volume BPH and large urinary bladder calculi.

Objective:To investigate the current situation of the use of transjugular intrahepatic portosystemic shunt (TIPS) for portal hypertension, which should aid the development of TIPS in China.Methods:The China Portal Hypertension Alliance (CHESS) initiated this study that comprehensively investigated the basic situation of TIPS for portal hypertension in China through network research. The survey included the following: the number of surgical cases, main indications, the development of Early-TIPS, TIPS for portal vein cavernous transformation, collateral circulation embolization, intraoperative portal pressure gradient measurement, commonly used stent types, conventional anticoagulation and time, postoperative follow-up, obstacles, and the application of domestic instruments.Results:According to the survey, a total of 13 527 TIPS operations were carried out in 545 hospitals participating in the survey in 2021, and 94.1% of the hospital had the habit of routine follow-up after TIPS. Most hospitals believed that the main indications of TIPS were the control of acute bleeding (42.6%) and the prevention of rebleeding (40.7%). 48.1% of the teams carried out early or priority TIPS, 53.0% of the teams carried out TIPS for the cavernous transformation of the portal vein, and 81.0% chose routine embolization of collateral circulation during operation. Most of them used coils and biological glue as embolic materials, and 78.5% of the team routinely performed intraoperative portal pressure gradient measurements. In selecting TIPS stents, 57.1% of the hospitals woulel choose Viator-specific stents, 57.2% woulel choose conventional anticoagulation after TIPS, and the duration of anticoagulation was between 3-6 months (55.4%). The limitation of TIPS surgery was mainly due to cost (72.3%) and insufficient understanding of doctors in related departments (77.4%). Most teams accepted the domestic instruments used in TIPS (92.7%).Conclusions:This survey shows that TIPS treatment is an essential part of treating portal hypertension in China. The total number of TIPS cases is far from that of patients with portal hypertension. In the future, it is still necessary to popularize TIPS technology and further standardize surgical indications, routine operations, and instrument application.