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find Author "DENGYun-dan" 3 results
  • Laparoscopic Radical Hysterectomy for Cervical Cancer: A Meta-Analysis

    ObjectiveTo systematically review the effectiveness and safety of laparoscopic radical hysterectomy (LRH) for cervical cancer. MethodsWe searched PubMed, EMbase, The Cochrane Library (Issue 10, 2013), CBM, CNKI, VIP, WanFang Data (from inception to October, 2013) through computer, and manually searched related journals. Randomized controlled trials (RCTs) on LRH versus abdominal radical hysterectomy (ARH) in the treatment of cervical cancer were identified according to the inclusion and exclusion criteria, data were extracted, and methodological quality of the included studies was accessed by two reviewer independently. Meta-analysis was then performed using RevMan 5.2 software. ResultsSeven RCTs involving 462 patients were finally included. The results of meta-analysis showed that: there were significant differences between LRH and ARH in the operation time, intraoperative bleeding, recovery time of gastrointestinal function, postoperative pain, postoperative hospital stay, and surgical site infection (MD=20.25, 95%CI 0.26 to 40.24, P=0.05; MD=-56.18, 95%CI-74.84 to-37.52, P < 0.000 01; SMD=-1.54, 95%CI-2.92 to-0.16, P=0.03; MD=-1.37, 95%CI-1.85 to-0.89, P < 0.000 01; MD=-2.32, 95%CI-3.57 to-1.06, P=0.000 3; RR=0.42, 95%CI 0.18 to 0.97, P=0.04). But there was no significant difference in the number of lymph node biopsy (MD=1.34, 95%CI-4.26 to 6.94, P=0.64) and some operative complications (lymphocyte: RR=1.19, 95%CI 0.54 to 2.63, P=0.66; DVT: RR=1.23, 95%CI 0.48 to 3.20, P=0.67; urinary retention: RR=0.85, 95%CI 0.41 to 1.75, P=0.66; cystotomy: RR=1.91, 95%CI 0.49 to 7.51, P=0.35). ConclusionCurrent evidence shows that although applying LRH costs longer time, and with high-level technology, its safety and short-term efficacy are superior to ARH. Due to the limited quantity and quality of the included studies, its long-term efficacy still needs to be further confirmed by conducting more high-quality, multi-centre RCTs with large sample size.

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  • Long-term Echocardiographic Outcomes of Patients after Mitral and Aortic Valve Replacement and their Clinical Significance

    ObjectiveTo investigate long-term echocardiographic outcomes of patients after mitral and aortic valve replacement and their clinical significance. MethodsA total of 204 patients who underwent mitral and aortic valve replacement from January 1999 to June 2008 in West China Hospital of Sichuan University, and had been followed up with echocardiography for longer than 5 years were enrolled in this study. There were 60 male and 144 female patients with their age ranging from 15 to 74 (48.42±11.00)years. Postoperative follow-up time was 5 to 13 (6.34±2.05)years. Preoperative and follow-up echocardiographic results were compared. ResultsCompared with preoperative results, postoperative left atrial diameter (LA)and left ventricular diameter (LV)significantly decreased (P < 0.05), while right ventricular diameter (RV), left ventricular ejection fraction (LVEF)and left ventricular fractional shortening (LVFS)significantly increased (P < 0.05). Right atrial diameter (RA)did not change significantly (P > 0.05). In the patients mainly with mitral stenosis preoperatively, postoperative LA, LV, left atrial area (LAA), left atrial volume (LAV), mitral mean pressure gradient (MPGmv), velocity time integral (VTImv)and pressure half time (PHTmv)significantly decreased (P < 0.05), while mitral effective orifice area (EOAmv)and effective orifice area index (EOAImv)increased significantly (P < 0.05), but peak E velocity (Emv)did not change significantly (P > 0.05). In the patients mainly with mitral regurgitation preoperatively, postoperative LA and LV decreased significantly (P < 0.05), while LAA, LAV, MPGmv, VTImv, PHTmv, EOAmv and EOAImv did not change significantly (P > 0.05). In the patients mainly with aortic stenosis preoperatively, postoperative LV, interventricular septal thickness (IVS), left ventricular mass (LVM), left ventricular mass index (LVMI), aortic peak forward flow velocity(Vav)and mean pressure gradient (MPGav)significantly decreased (P < 0.05), while aortic effective orifice area (EOAav)and effective orifice area index (EOAIav)significantly increased (P < 0.05), but left ventricular posterior wall thickness (LVPW)did not change significantly (P > 0.05). In the patients mainly with aortic regurgitation preoperatively, postoperative LV, LVM, LVMI, EOAav and EOAIav decreased significantly (P < 0.05), while Vav and MPGav increased significantly (P < 0.05), but IVS and LVPW did not change significantly (P > 0.05). In mitral position, compared with patients with 25 mm prosthesis, Emv, MPGmv and VTImv of patients with 27 mm prosthesis were significantly smaller (P < 0.05), but there was no statistical difference in PHTmv, EOAmv or EOAImv between the 2 groups (P > 0.05). In aortic position, compared with patients with 21mm prosthesis, Vav, MPGav and VTIav of patients with 23 mm prosthesis were significantly smaller (P < 0.05), while EOAav and EOAIav were significantly larger (P < 0.05). In mitral position, 38 patients (21.3%)had moderate prothesis-patient mismatch (PPM)and 4 patients (2.3%)had severe PPM. In aortic position, 50 patients (24.5%)had moderate PPM and 43 patients (21.1%)had severe PPM. Consti-tuent ratio of long-term tricuspid regurgitation (TR)degree of patients after tricuspid valvuloplasty (TVP)significantly improved (P < 0.05), but constituent ratio of long-term TR degree of patients without TVP significantly deteriorated (P < 0.05). ConclusionsLeft ventricular function and hemodynamic outcomes in the long term are significantly better than preoperative results after double valve replacement, but they are still far from normal. PPM in aortic position is more severe than that in mitral position. Since residual or aggravated TR is very common in the long term, concomitant TVP should be considered more positively for patients undergoing surgery for left-sided valvular disease.

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  • A Randomized Controlled Trial of Concomitant Tricuspid Annuloplasty for Patients Underwent Mitral Valve Replacement: UCG Evaluation 2 Years After Surgery

    Objective To evaluate the right ventricular function of the patients 2 years after surgery by ultrasonic cardiography (UCG) who underwent mitral valve replacement (MVR) concomitant tricuspid annuloplasty (TAP). Method We finally identified 36 patients required MVR with tricuspid valve annular dilation concomitant merely mild tricuspid regurgitaion (TR) based on preoperative UCG in our hospital between April and November 2012 year. All patients were randomly divided into two groups by digital table including a tricuspid annuloplasty group (a TAP group, n=18, 7 males and 11 females at age of 45.67±12.49 years) and a no-tricuspid annuloplasty group (a NTAP group, n=18, 6 males and 12 females at age of 45.44±10.48 years). General clinical data and extracorporeal circulation data were recorded. UCG evaluation was practiced preoperation, alone with 1 week, 6 months, and 2 years after surgery. Results Two years postoperative maximal long-axis of RA (RAmla), mid-RA minor distance (RAmmd), right ventricle dimension-1(RVD1) , right ventricular fractional area change (RVFAC), 3D RV end-systolic volume (3DRVESV), tricuspid valve annular end-diastolic dimension (TVAEDD), tricuspid valve annular end-systolic dimension (TVAESD) of patients were all smaller in the TAP group than those in the NTAP group. Yet right ventricular ejection fraction (RVEF), percent shorting of tricuspid valve annulus (PSTVA) were greater in the TAP group than those in the NTAP group, although there was no statistical difference between the two groups in two years postoperative 3D RV end-diastolic volume (3DRVEDV). The patients in the TAP group had a superior trend than that of the NTAP group. Moreover, the patients' TR constituent ratio in the TAP group was much better than that of the NTAP group in 2 year after operation. Conclusions Concomitant tricuspid annuloplasty for patients with tricuspid valve annulus dilation and mild TR underwent MVR is favorable for the recovery of their 2 years postoperative function of tricuspid valve and right ventricle. It is benefit to reduce patient's long term postoperative TR residues and exacerbation.

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