Objective: To observe the clinical effects of Zhu Lian's type Ⅰ excitation needling technique for postpartum urinary retention. Methods: A total of 60 cases with postpartum urinary retention were recruited and divided randomly into an observation group and a control group, 30 cases in each group. The control group was treated with routine acupuncture, and stimulated with sparse and dense wave of electric acupuncture for 15 min after arrival of needling sensation, and then the needles were taken out. The observation group was treated with Zhu Lian's type Ⅰ excitation needling technique, by inserting the needles with the quick inserting method, swift and temporary lifting and thrusting technique for shallow insertion for 5 times, by an in-and-out technique, without retaining the needles. Results: The total effective rate was 96.7% in the observation group and 83.3% in the control group. The difference in the total effective rate between the two groups was statistically significant (P<0.05). After the treatment, the first urination time was shorter in the observation group than that in the control group, with a statistical significance (P<0.01). After the treatment, the volume of residual urine after the first urination was less in the observation group than that in the control group (P<0.01). Conclusion: Zhu Lian's type Ⅰ excitation needling technique can effectively promote the voluntary urination and bladder emptying in patients with postpartum urinary retention, and it takes effect faster.

Objective_To investigate the potential effect of bone marrow mesenchymal stem cells ( MSCs) on repai-ring the colon epithelial cell,and on the treatment of rats with ulcerative colitis ( UC) .Methods_Monocytes were purified from bone marrow, amplified and identified as MSCs in vitro.Thirty female Wistar rats were randomly di-vided into 3 groups, the normal control, model and MSCs groups (10 rats/group).The rats in model and MSCs groups were induced colitis with trinitro-benzene-sulfonic acid;The rats in normal control group and model groups were injected with 1mL saline via tail vein, while those in MSCs group with 1 mL MSCs suspension.After two weeks, colon tissue samples were analyzed for histopathology,and the colon tissues were made into serial section for determining the distribution of Y chromosome and CK20 double positive cells,analyzing the mRNA levels of CK20,NF-κB, IL-4 by RT-PCR,and assaying colonic NF-κB protein expression with Westen blot,detecting colon tissues IL-4 content with ELISA.Results_Y chromosome and CK20 double positive cells were found in MSCs transplanted colon tissues.The expression of CK20 increased in the colon tissues of UC rats(P<0.01) and in MSCs group in-creased as compared with model group( P<0.01) .The expression of NF-κB increased in the colon tissues of UC rats (P<0.01), but decreased MSCs group as compared with model group (P<0.01).The expression of IL-4 was decreased in the colon tissues of UC rats ( P<0.01) , while in MSCs group it was increased as compared with model group ( P<0.01) .Conclusions_MSCs may have therapeutic efficacy on colitis in rats through differentiating into colon epithelial cells.

Objective:To investigate the management of patients with intravenous misplacement of nephrostomy tube following percutaneous renal surgery.Methods:The data of 6 patients with intravenous misplacement of nephrostomy tube during percutaneous nephrolithotomy (PCNL) treated in the two hospitals of Chenzhou from January 2006 to December 2020 were retrospectively analyzed. The median age was 41.0(38.5, 53.0) years old. There were 4 males and 2 females. Three patients had undergone contralateral upper urinary tract operation. One patient had undergone ipsilateral upper urinary tract operation. Two patients had not undergone upper urinary tract operation. Two of the 6 patients had a solitary kidney. Two patients were diagnosed with staghorn calculi (combined with mild hydronephrosis in 1 patient, moderate hydronephrosis in 1 patient). Four patients were diagnosed with ureteral calculus (combined with mild hydronephrosis in 2 patients, moderate hydronephrosis in 1 patient, severe hydronephrosis in 1 patient). In all 6 patients, the tract was dilated with fascial dilators. Immediately after dilator removal, brisk venous bleeding was noted. A nephrostomy tube was inserted promptly through the sheath to tamponade the tract and was immediately closed. Five cases were diagnosed by CT after operation, and 1 case was early diagnosed by intraoperative injection of contrast medium through nephrostomy tube. The nephrostomy tube was misplaced in 5 patients with left upper urinary tract calculi, and in 1 patient with right upper urinary tract calculi. The tip of nephrostomy tube was located in ipsilateral renal vein in 3 patients with left upper urinary tract calculus, inferior vena cava in 2 patients with left upper urinary tract calculus, and contralateral renal vein in 1 patient with right upper urinary tract calculus. No venous thrombosis of renal vein or inferior vena cava was founded in the 6 patients. All 6 patients were managed with strict bed rest, intravenous antibiotics, and one-step or two-step tube withdrawal under close monitoring. One step method referred to total removal of nephrostomy tube under ultrasonic monitoring. Two step method referred to retracting the end of nephrostomy tube into the renal sinus under CT monitoring in the first step, then the nephrostomy tube was completely removed under ultrasound monitoring.Results:All 6 patients were successfully managed with strict bed rest, intravenous antibiotics, and one-step or two-step tube withdrawal under close monitoring. The tube was withdrew by one-step method in 1 patient, by two-step method in 5 patients. The original operations were performed successfully under close observation in 4 patients during the same hospitalization and in 1 patient during the next hospitalization. Other type of operation in 1 patient was performed during the next hospitalization. The all 6 patients were discharged uneventfully. The stone was cleared.Conclusions:Intravenous misplacement of a nephrostomy tube is mainly diagnosed by CT. The nephrostomy tube should be sealed immediately after diagnosis. The intravenously misplaced nephrostomy tube can be successfully removed by one-step or two-step withdrawing under close monitoring. Upper urinary tract stones can be successfully treated at the same time or by stages.