Publications by authors named "Yanqun Na"

Objectives: To evaluate whether the urinary continence (UC) recovery after robotic-assisted radical prostatectomy (RARP) relates to the membranous urethral length (MUL) and the membranous urethral complex volume (MUV).

Materials And Methods: 120 patients who underwent RARP were enrolled according to the different times of UC recovery and examined using prostate magnetic resonance imaging (MRI) before surgery. The membranous urethral (MU) parameters were measured using the three-Dimensional (3D) model reconstructed by holographic technology, such as total MUV (tMUV), exposed MUV (eMUV), full MUL (fMUL) and exposed MUL (eMUL).

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Objectives: To evaluate the clinical value of the holographic imaging technology in combination with robotic-assisted partial nephrectomy (RAPN) for renal hilar tumor treatment.

Patients And Methods: From Dec. 2018 to Dec.

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Objectives: To establish a three-dimensional visualization model of percutaneous nephrolithotomy, apply it to guiding intraoperative puncture in a mixed reality environment, and evaluate its accuracy and clinical value.

Methods: Patients with percutaneous nephrolithotomy indications were prospectively divided into three-dimensional group and control group with a ratio of 1:2. For patients in three-dimensional group, positioning markers were pasted on the skin and enhanced computed tomography scanning was performed in the prone position.

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Background: To explore the efficacy and advantages of real-time navigation using holographic reconstruction (HR) technology combined with da VinciTM robotic system for partial nephrectomy (PN) in patients with renal tumor.

Methods: The clinical data of 41 patients with totally intrarenal tumors receiving robot-assisted partial nephrectomy (RAPN) from April 2018 to October 2020 in our department were collected and retrospectively analyzed. All operations were performed by the same surgeon.

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Background: To report a new standardized cognitive fusion technique on transperineal targeted biopsy (TB) of prostate, and to evaluate its efficacy for cancer detection combined with systematic biopsy (SB) .

Methods: We present a retrospective review of consecutive patients undergoing multiparametric magnetic resonance (mpMRI) imaging of the prostate with subsequent transperineal prostate biopsy from January 2016 to December 2018. A free-hand 12-core SB was performed for each patient.

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Objective: Potential of combined androgen blockade (CAB) has not been explored extensively in Chinese males with prostate cancer (PCa). Therefore, this study evaluated the 2-year prostate-specific antigen (PSA) recurrence rate and quality of life (QoL) in patients with high-risk localized and locally advanced PCa receiving adjuvant hormone therapy (HT) after radical prostatectomy (RP).

Methods: This prospective, multicenter, observational study conducted in 18 centers across China enrolled patients with high-risk factor (preoperative PSA>20 ng/mL or Gleason score >7) or locally advanced PCa.

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Objective: To study the dosage regimen of oral M-receptor blocker following transurethral resection of the prostate (TURP) for severe benign prostate hyperplasia (BPH) with predominant urine storage period symptoms (USPSs) and its clinical effect.

Methods: Severe BPH patients with predominant USPSs received oral tolterodine (2 mg q12d or 4 mg qd) 6 hours after TURP for 4 weeks. The medication continued for another 2 weeks in case of recurrence of USPSs or until the 12th week in case of repeated recurrence.

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Background: Whether cholinergic innervations and/or autophagy have a role in the etiopathology of benign prostatic hyperplasia (BPH) is still unknown. This study aimed to investigate the role of cholinergic innervation and autophagy in the etiopathology of BPH.

Methods: Male, 13-week-old spontaneous hypertension rats (spontaneous BPH animal model) were divided into three groups: an experimental group (EG, n = 24), a control group (CG, n = 24), and a normal control group (NC, n = 10).

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Background: The medium-to-long-term use of antimuscarinics alone or in combination with an α-blocker in men with an enlarged prostate is still controversial. This double-blind, placebo-controlled, randomized clinical trial aimed to investigate the efficacy and safety of medium-to-long-term use of tolterodine extended release (ER) with or without tamsulosin in patients with benign prostate hyperplasia (BPH) and larger prostate size.

Methods: Totally, 152 patients (age ≥50 years) with BPH, International Prostate Symptom Score (IPSS) ≥12, quality-of-life (QoL) score ≥3, and total prostate volume ≥25 ml were enrolled in this study.

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Introduction: The traditional procedure for the management of bilateral ureteral stones is staged ureteroscopic lithotripsy (URS). However, in recent years particularly, some urologists advocate same-session bilateral URS on the ground of success rates and minimal morbidity. This systematic review is to evaluate the efficacy and safety of same-session bilateral ureteroscopy for the treatment of ureteral calculi.

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Bladder tumor arising in a spina bifida patient is rare and may be clinically latent. We report the case of a 61-year-old female patient with spina bifida, neurogenic bladder, and a history of recurrent urinary tract infections. A B-ultrasound and non-contrast computed tomography scan did not reveal any bladder mass, but an unexplained "well-filled" bladder was observed, which was confusing as the catheter was present and open.

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In this study, we aimed to identify the influence of exonuclease 1 (EXO1) single-nucleotide polymorphism rs9350, which is involved in DNA mismatch repair, on prostate cancer risk in Chinese people. In our hospital-based case-control study, 214 prostate cancer patients and 253 cancer-free control subjects were enrolled from three hospitals in China. Genotyping for rs9350 was performed by the SNaPshot(®) method using peripheral blood samples.

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Previous research revealed that CMTM8 acts as a tumor suppressor gene in variety cancers. However, the role of CMTM8 in bladder cancer has never been reported. In this study, the expression profile of CMTM8 was examined in bladder cancer tissues and bladder cancer cell lines.

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Fungus ball and fungal emphysematous cystitis are two rare complications of fungal urinary tract infection. A 53-year-old male patient presented with these complications caused by Candida tropicalis simultaneously. The predisposing factors were diabetes mellitus and usage of broad-spectrum antibiotics.

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Objectives: To investigate the impact of three-dimensional (3D) printing on the surgical planning, potential of training and patients' comprehension of minimally invasive surgery for renal tumors.

Methods: Patients of a T1N0M0 single renal tumor and indicated for laparoscopic partial nephrectomy were selected. CT data were sent for post-processing and output to the 3D printer to create kidney models with tumor.

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Article Synopsis
  • The study aimed to assess the diagnosis and treatment of bladder cancer across various centers in China between 2007 and 2012, analyzing a total of 14,260 cases.
  • Results showed that the majority of patients were older males, with urothelial carcinoma being the most prevalent histological type, and non-muscle invasive bladder cancer representing only a small fraction.
  • Treatment approaches varied, with transurethral resection being common for non-muscle invasive cases, while radical cystectomy was primarily used for muscle invasive bladder cancer, highlighting some similarities and differences compared to international practices.
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Introduction And Hypothesis: Lower urinary tract symptoms (LUTS) consist of storage, voiding and postmicturition symptoms and cause discomfort in approximately 15.8 to 82.0 % of adults worldwide.

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Purpose: To explore the feasibility and efficacy of docetaxel plus prednisone for Chinese population with metastatic castration refractory prostate cancer (mCRPC).

Patients And Methods: A total of 228 patients recruited from 15 centers were randomized to receive 10 cycles of D3P arm (docetaxel: 75 mg/m2, intravenous infusion, every three weeks; Prednisone 10mg orally given daily) or M3P arm (mitoxantrone: 12 mg/m2, intravenous infusion, every three weeks; Prednisone 10mg orally given daily). Primary end point was overall survival, and secondary end points were events progression-free survival (PFS), response rate, response duration.

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Purpose: To evaluate the prevalence, risk factors, and symptom bother of nocturia in Chinese adults.

Methods: A population-based, cross-sectional survey was conducted among individuals aged ≥18 years in five geographical regions of China, via a stratified sampling approach. A structured questionnaire was used to obtain information on sociodemographic characteristics, general health, and past disease, and the International Consultation on Incontinence Questionnaire-Male/Female Lower Urinary Tract Symptoms Long Form was administered to estimate the prevalence of nocturia and rate their symptom bother.

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Aims: To assess the efficacy and safety of mirabegron 50 mg once daily compared with placebo and the active control, tolterodine extended-release (ER) 4 mg once daily, in patients with symptoms of overactive bladder (OAB) in Taiwan, Korea, China, and India.

Methods: A 12-week multinational, randomized, double-blind, parallel-group placebo- and active-controlled trial. The primary efficacy endpoint was change from baseline to final visit in mean number of micturitions/24 hr.

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Purpose: The percutaneous renal access (PRA) is the most critical step of percutaneous renal surgery (PRS). For the training of PRA in the lab, a novel non-biological bench model was developed and set for validation test.

Materials And Methods: Experts in PRS (> 60 cases) and novices were included to perform fluoroscopy guided PRA on the model.

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Objective: To investigate the difference and relative advantages between minimally invasive percutaneous nephrolithotomy (MPCNL) in supine position and flexible ureteroscopy (FURS) in the management of surgically indicated single large stone in the proximal ureter.

Methods: Patients with single large stone in the proximal ureter with slight to moderate hydronephrosis were prospectively selected and assigned into groups of MPCNL and FURS on the basis of the patient's choice. Demographic data, operative duration, postoperative hospital stay, complication rate, and stone-free rate were recorded and compared.

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Background: Minimally invasive flexible ureteroscopy techniques have widely adopted in the management of patients with renal stones. We performed this study to investigate the value of virtual reality simulator training in retrograde flexible ureteroscopy renal stone treatment for catechumen.

Methods: Thirty catechumen, included 17 attending physicians and 13 associate chief physicians, were selected for study.

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Objective: To investigate the association between metabolic syndrome (MetS) and the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) in a population-based sample of Chinese men.

Methods: From October 2010 to July 2011, 1896 men, aged between 20 and 50 years, residing in Shijingshan district of Beijing, China, were selected to participate in the Male Reproductive Health Program (a random cross-sectional survey). The Chinese version of the NIH-CPSI questionnaire was used to identify men with prostatitis-like symptoms.

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Objective: To examine the relationships among lower urinary tract symptoms (LUTS), erectile dysfunction (ED) and mental health in Chinese men aged from 22 to 50.

Methods: The subjects were 907 men aged between 22 and 50 years. The symptoms of mental distress were evaluated by the Zung Self-rating Depression Scale questionnaires and Zung Self-rating Anxiety Scale questionnaires.

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