OBJECTIVE To study the amounts of pulpal lipopolysaccharide (LPS) in acute and chronic pulpitis and to analyze the relation between the amounts of LPS in pulpitis and the clinical symptoms. METHODS The Limulus test was used to analyze the amounts of LPS in the root canal of pulpitis, under the condition of acute and chronic pulpitis. RESULTS The amounts of LPS in 23 cases of acute pulpitis were found significantly higher than that in 22 cases of chronic pulpitis, P

Objective To study the safety,feasibility and efficacy of thoracoscopic hepatectomy for liver carcinoma. Methods Thoracoscopic hepatectomy was performed in 3 cases with single liver neoplasm from 2007 to 2011,including hepatocellular carcinoma ( HCC ) in one case and metastatic liver cancer in 2 cases.By preoperative imaging the tumor was located accurately to simulate the port position in operation.Patients were placed in a left lateral decubitus position,and 3 ports were inserted into the chest wall surrounding the tumor. Through the use of intra-operative thoracoscopic uhrasonography (IOTU),the diaphragm just above the tumor was opened.IOTU was performed on the liver surface and the resection line was marked.Throughout the course of parenchymal transection,IOTU was performed repeatedly to guide the resection line,and ensure the complete removal of the tumor.After meticulous hemostasis of the resection surface,the diaphragm was closed. A thoracic drain was left. Results Thoracoscopic hepatectomy succeeded in all 3 cases,the median total operating time was 150 min (110 -210 min),and the medianblood loss was 297 ml (130 -600 ml). Patients recovered quickly and had no major post-operative complications.During 9 to 42 months' follow-up,one patients died of other cause,no relapse of the diseases was found. Conclusions Thoracoscopic hepatectomy is a safe and feasible operation in selected patients and has advantages in post-operative morbidity and in hospital time.

Objective To evaluate the efficacy of eszopiclone for patients with acute insomnia and the impact of premedication with eszopiclone on sleep structure of patients with acute insomnia.Methods In an open-label,self-control trial was conducted at Changzheng Hospital Sleep Centers,and patients (n =32) with acute insomnia (12 men,20 women; mean age,36.2 years) were administered eszopiclone 3 mg for three consecutive nights.Sleep was monitored via polysomnography.The insomnia severity index (ISI),and mini-mental state examination (MMSE) were used to assess the degree of insomnia and impact of drugs on cognitive function during the day.Results Eszopiclone can shorten sleep latency ( before treatment:(52.92 ± 11.71 ) min,after treatment:(28.2 ± 10.11 ) min; t =-4.376,P ＜0.01 ),prolong total sleep time(before treatment:(365.22 ±30.13) min,after treatment:(429.18 ±26.93 ) min; t =4.102,P ＜ 0.01 ),decrease wake up times( before treatment:( 5.00 ± 1.92 ) times,after treatment:( 2.73 ± 0.91 )times; t =- 4.592,P ＜ 0.01 ),improve sleep efficiency ( before treatment:72.69％ ± 6.32％,after treatment:82.67％ ± 4.16％ ; t =3.371,P ＜ 0.01 ),reduce awake time ( before treatment:( 88.51 ±17.48) min,after treatment:(65.93 ±21.l0)min; t =-4.592,P ＜0.01 ),decrease light sleep ( NREM1 period) the percentage of time ( before treatment:12.54％ ± 2.10％,after treatment:7.30％ ± 2.90％ ;t=-3.155,P ＜ 0.01 ),and increase the percentage of slow wave sleep (before treatment:8.03％ ±5.37％,after treatment:9.31％ ±5.29％; t =4.228,P ＜0.01).No effect was observed on the percentage of NERM2 period (t =0.731,P ＞0.05) and REM period (t =-0.813,P ＞0.05).Eszopiclone can improve the quality of subjective assessment of sleep ( ISI score decreased,t =- 2.551,P ＜ 0.05) and has no significant effect on cognitive function on first the morning after patients taking the medication.Conclusion Eszopiclone can positively regulate the sleep structure in patients with acute insomnia and improve subjective assessment of sleep quality.It is safe and has no significant effect on cognitive function.

Objective To build a multi-system chain transitional care programme for postpartum pelvic floor training and test its effect.Methods By a prospective randomized controlled trial,the study group (n=60) received a multi-system chain transitional care programme which consisted of ward nurse,home visiting doctor,post-natal care clinic doctor,pelvic floor doctor and pelvic floor nurse.The control group(n=60) received routine care.The pelvic floor muscle strength,sexual function and patient satisfaction of baseline,on the 42th days,3rd months and 6th months were compared between two groups by short-term follow-up.Results There was no difference in baseline consisting of age,gestational weeks,birth weight and so on between groups.Participants in the study group had significantly better improvement and score in pelvic floor muscle strength,sexual thoughts,sexual arousal,sexual psychopathy and problems affecting sexual function.There was no difference in score of sexual pleasure and ejaculation time between two groups.Conclusions This study was an original effort to establish and evaluate a multi-system chain transitional care program for postpartum pelvic floor training.Results demonstrated that this transitional care was effective in improving pelvic floor function.

Objective To explore the reliability of handgrip strength test for evaluating mobility in patients with stable chronic obstructive pulmonary disease.Methods Sixty-one COPD patients in stable stage were measured for handgrip strength and 6-minute walking test(6MWT).The receiver operating characteristic curve(ROC) was calculated to determine the best cutoff points of handgrip strength.Results Handgrip strength was (33.72-±7.47) kgf,6MWD was (437.06±97.96) m,handgrip strength was moderately correlated with 6MWD (r=0.404,P=0.001).6MWD≥350 m was used to classify two groups,and there was significant difference between two groups(P＜0.05).Area under the curv e was 0.722,and the best cutoff points was 32.8 kgf.Conclusion Handgrip strength test can be a useful tool to quickly identify mobility in patients with stable COPD.

Objective To investigate the effect of bowel preparation before colonoscopy and its influencing factors. Methods A total of 283 patients with colonoscopy were recruited by convenience sampling method. They were investigated with basic information questionnaire of bowel preparation and their intestinal cleanliness were assessed by the Ottawa Assessment Scale. The status of bowel preparation and it′s influenced factors were analyzed. Results The total score of Ottawa Assessment Scale was (5.37 ± 2.22) points, and the efficiency of intestinal cleaning was only 59%(167/283). Logistic regression analysis showed that age (OR=1.033, P=0.013); history of chronic constipation (OR=10.341, P=0.000);history of appendectomy (OR=5.349, P=0.007); walking time during medication (OR=0.350, P=0.000);incomplete intake of the preparation (OR=0.078, P=0.000), the time interval between the initiation of ingestion and the onset of bowel activity (OR=1.034, P=0.000), defecation frequency (OR =0.794, P=0.004);characteristics of last stool (OR=0.159, P=0.000) were influencing factors of intestinal cleanliness. Conclusions The intestinal cleanliness of patients with colonoscopy is still at a low level. In the future, medical personnel should identify patients with risk factors early, and give them specific bowel preparation, so as to improve the quality of bowel preparation effectively.

Objective To study the feasibility of Video-assisted thoracoscopic thymectomy and the long term result of thoracoscopic thymectomy for myasthenia gravis. Methods 9 cases of thymus related disease were selected to undergo thymectomy though thoracoscopic approach from August 1996 to April 2001.Patients were followed up through outpatient service and telephone consultation. Results Of the 9 cases 2 cases were diagnosed as thymus cysts,1 cases thymoma,1 case malignant thymoma,1cases thymus carcinoma and 4 cases myasthenia gravis.Of the 4 cases of myasthenia gravis,3 cases were typeⅠ and 1 case was typeⅡb according to the modified Osserman classification.After thoracoscopic thymectomy 75% of patients had long-term good responses to surgery.The operation of one case of malignant thymoma was converted to lateral thoracotomy.One case of malignant thymoma with myasthenia gravis relapsed and reoperated through open thoracotomy . Conclusions video-assisted thoracoscopy can be usd to treat seleted thymic diseases .The results of video-assisted thoracoscopic thymectomy for mysthenia gravis is almost comparable with traditional open thoracotomy

Objective:To compare low temperature coblation assisted tonsillectomy with conventional dissec-tion tonsillectomy intraoperation and afteroperation. Method:Ninty-two pedia-patients were randomly divided into coblation-assisted tonsillectomy group and the control group. Arthrocare EVac 70 T&.A Wand was used for cobla-tion-assisted tonsillectomy, and the energy set was 7. Conventional dissection tonsillectomy was operated in control group. The operating time,bleeding,tonsillar fossae healing and return to normal diet and activities, intraoperative complications were recorded seperately. Postoperative pain of the pedia-patients was recorded daily using Wong Baker FACES pain scale for 10 days of afteroperation. Result: Coblation assisted group had a shorter operative time than the control group (10. 2min vs. 36. 5min, P<0. 001). The average amount of intraoperative bleeding of Coblation assisted group was(6. 83±3. 36) ml, while the control group was(30. 07±7. 04)ml. Pedia-patients of Coblation group had a better pain score on 1, 2, 3 days after operation than in control group, and there was no statistically significant difference on 4 to 10 days between the two groups. Coblation group ones returned to normal diet earlier than the control group, but both group required similar time returned to normal activities. There was one patient in control group, who required suturing to stop bleeding for active oropharyngeal bleeding on the 6th day after operation. Conclusion: Comparing with traditional dissection, Coblation assisted tonsillectomy is easy to perform with less intraoperative bleeding,shorter operation time,earlier return to normal diet, less pain on 1st to 3th day postoperatively.

To investigate theological properties of common hydrophilic gel excipients such as Carbopol based on viscosity, the viscosity was determined by rotation method and falling-ball method. Linear regression was made between ln(eta) and concentration, the slope of which was used to explore the relation between viscosity and concentration of different excipients. The viscosity flow active energy (E(eta)) was calculated according to Arrhenius equation and was used to investigate the relation between viscosity and temperature of different excipients. The results showed that viscosities measured by two methods were consistent. Concentration of guargum (GG) and hydroxypropylmethyl cellulose (HPMC) solution had a great influence on the viscosity, k > 5; while concentration of polyvinylpyrrolidone-K30 (PVP-K30) and polyethylene glycol 6000 (PEG6000) exerted a less effect on viscosity, k < 0.2; viscosity flow active energy of different excipients were close, which ranged from 30 to 40 kJ x mol(-1). Therefore, theological properties study could provide the basis for application of excipients and establish a foundation for the research of relation between excipients structure, property and function.

Objective:To investigate the clinical effect of preemptive analgesia with pentazocine on perioperative pain management in partial splenectomy.Methods:A total of 100 patients with traumatic splenic rupture who underwent partial splenectomy at Yiwu Central Hospital between October 2019 and November 2021 were randomly assigned to either the control group or the study group, with 50 patients in each group using the random number table method. Both groups received patient-controlled analgesia postoperatively. Additionally, the study group received intravenous pentazocine administration before surgery. The amount of anesthetic used during surgery, postoperative anesthesia recovery indices, postoperative pain response, serum inflammatory factor levels, and the number of effective patient-controlled analgesia pump presses within 48 hours postoperatively were recorded and evaluated. Any adverse drug reactions were also monitored.Results:The dosages of propofol [(462.24 ± 27.13) mg] and remifentanil [(365.98 ± 26.78) μg] in the study group were significantly lower than those in the control group [(511.82 ± 26.32) mg, (406.86 ± 26.08) μg, t = 14.49, 12.63, both P < 0.001). The recovery time of spontaneous breathing [(6.86 ± 0.97) minutes], anesthesia recovery time [(13.24 ± 0.82) minutes] and extubation time [(17.14 ± 1.07) minutes] were significantly shorter than those in the control group [(7.62 ± 0.90) minutes, (14.32 ± 0.84) minutes, (18.22 ± 1.06) minutes, t = 5.80, 8.58, 6.93, all P < 0.001]. The Visual Analogue Scale (VAS) scores in the study group were significantly lower than those in the control group at 24 and 48 hours after surgery, both in resting and coughing state ( t = 7.82, 9.31, 4.95, 8.47, all P < 0.001). The serum levels of tumor necrosis factor-alpha, interleukin-1, and interleukin-6 were significantly lower in the study group than in the control group ( t = 21.53, 25.61, 18.45, 16.90, 17.33, 14.86, all P < 0.001), while the serum level of interleukin-10 was significantly higher in the study group than in the control group ( t = -20.85, -19.61, both P < 0.001). The number of effective patient-controlled pump analgesia presses within 48 hours postoperatively in the study group [(6.24 ± 1.17) times] was significantly lower than that in the control group [(10.26 ± 1.34) times, t = 12.95, P < 0.05). In addition, the overall incidence of adverse drug reactions in the study group [4.00% (2/50)] was significantly lower than that in the control group [18.00% (9/50), χ2 = 5.01, P < 0.05]. Conclusion:Preemptive analgesia with pentazocine for patients undergoing partial splenectomy can effectively reduce the dosage of anesthetics during surgery and the dosage of analgesics after surgery, enhance the recovery from postoperative anesthesia, suppress postoperative inflammatory reactions, alleviate pain responses, and minimize the risk of adverse drug reactions.