Publications by authors named "Zhengqing Bao"

Objective: We conducted this meta-analysis to comprehensively explore the prognostic value of the preoperative plasma fibrinogen in Asian patients diagnosed with urothelial cancer (UC).

Methods: After a systematic search of Web of Science, PubMed, and Embase before May 2024, we included 10 studies in our meta-analysis. The hazard ratios (HRs) with 95% confidence interval (CI) for overall survival (OS), cancer-specific survival (CSS), recurrence-free survival (RFS), and progression free survival (PFS) were estimated using fixed effect model.

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Purpose: To report our early experience of a novel surgical approach for penile urethral strictures after hypospadias repair, using a lateral incision to keep the ventral tissue and vasculature of the penis intact and to avoid the need for tissue interposition.

Patients And Methods: A total of 21 patients underwent lateral incision 1-stage urethroplasty with oral mucosal graft. The median age of the patients was 21 years old (range, 13-47).

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Background: Carbon dioxide (CO) embolism is the primary suspect in most cases of intraoperative "cardiovascular" collapse. However, there are few reports about CO embolism in retroperitoneal laparoscopy.

Case Presentation: An abrupt decrease in arterial blood pressure was noted in time of retroperitoneoscopic adrenalectomy in a 40 years old male patient with adrenal adenoma.

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Background: The optimal acute management of patients with blunt straddle injury to the bulbar urethra remains in question. Conventionally, suprapubic diversion with delayed urethroplasty can always be considered, if necessary, but the role of early endoscopic realignment (EER) in the acute management of blunt straddle injuries to bulbar urethra is controversial. We report our clinical experience and outcomes with EER for patients with straddle injury to the bulbar urethra in a level one trauma center.

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The disability rate of spinal cord injury (SCI) is extremely high, and stem cell inhibition is one of the most effective schemes in treating the spinal cord, but the survival rate is extremely low after stem cell transplantation, so it cannot be widely used in clinic. Studies have revealed that loading stem cells with biological scaffolds can effectively improve the survival rate and effect after stem cell transplantation. Therefore, this research was devised to analyze the repair effect of thiolated chitosan nanocarriers scaffold carrying de-epithelized human amniotic epithelial cells (HAECs) on SCI.

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Purpose: To analyze the effect of preoperative serum sodium and hemoglobin on oncologic outcomes in upper tract urothelial carcinoma (UTUC) based on a multi-center cohort from China and the United States (U.S.).

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Purpose: No conclusion exists for the optimum duration of preoperative administration of doxazosin (DOX) before adrenalectomy for pheochromocytoma. The purpose of this study is to investigate whether perioperative hemodynamics and postoperative outcomes are related to the duration of DOX administration.

Methods: In total, 132 patients managed preoperatively with single α-receptor blocker DOX were enrolled.

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Background: Studies regarding the prevalence and factors associated with severe pre-operative chronic kidney disease (CKD) in upper tract urinary carcinoma (UTUC) patients were rare due to the low prevalence of UTUC. We conducted the present study to investigate the prevalence, clinicopathological features, and prognosis in UTUC patients with severe preoperative CKD.

Methods: The study included 731 patients with UTUC treated with radical nephroureterectomy (RNU) in a large Chinese center.

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Purpose: The aim of this study was to elucidate the prognostic value of the preoperative controlling nutritional status (CONUT) score, a new index based on the total lymphocyte count, serum albumin concentration and total cholesterol concentration, in patients with localized upper tract urothelial cancer (UTUC) after radical nephroureterectomy (RNU) using propensity score matching (PSM) analysis.

Methods: We retrospectively reviewed 908 consecutive patients with localized UTUC who underwent RNU between 1999 and 2015. Patients were divided into two groups according to the optimal cutoff value of the preoperative CONUT score.

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Purpose: There is no consensus for the optimum duration of preoperative administration of phenoxybenzamine (PXB) before adrenalectomy for pheochromocytoma. The aim of this study is to investigate whether perioperative hemodynamics and postoperative outcomes are related to the duration of PXB administration.

Methods: In total, 102 patients managed preoperatively with single -receptor blocker phenoxybenzamine were enrolled from 469 consecutive patients diagnosed histologically with pheochromocytoma.

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Background: The transcription factor SRY-related HMG-box 2 (SOX2) plays important regulatory roles in diverse biological processes (cell proliferation, migration, invasion and tumorigenicity). However, the relationship between SOX2 and upper tract urothelial carcinoma (UTUC) have not been intensively investigated. This study aims to analyze the expression of SOX2 in UTUC as well as the predictive value for prognosis and the effect on tumor aggressiveness of SOX2.

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The prognostic significance of murine double minute 2 (MDM2) expression remains unknown in patients with upper tract urothelial carcinoma (UTUC). This study was designed to evaluate MDM2 expression and its association with clinicopathological characteristics and tumor outcomes in UTUC patients. Expression levels of MDM2 and p53 were determined by immunohistochemistry in a cohort of 341 UTUC patients.

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Background: Lymph node invasion (LNI) is a strong adverse prognostic factor in prostate cancer (PCa). The purpose of this study was to evaluate the role of Prostate Imaging Reporting and Data System version 2 (PI-RADSv2) scores for estimating the risk of LN metastasis. The study also aimed to investigate the additional value of PI-RADSv2 scores when used in combination with clinical nomograms for the prediction of LNI in patients with PCa.

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The aim of this study was to evaluate the prognostic value of the aspartate transaminase/alanine transaminase (AST/ALT) ratio in a large Chinese cohort surgically treated for localized upper tract urothelial carcinoma (UTUC) using propensity score matching (PSM) analysis. Data of 908 consecutive patients with localized UTUC who underwent radical nephroureterectomy (RNU) were retrospectively evaluated. The endpoints of prognosis were progression-free survival (PFS), cancer-specific survival (CSS) and overall survival (OS) after RNU.

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The key prognostic factor at the time of diagnosis of upper tract urothelial carcinomas (UTUC) is whether the tumor is in the muscle-invasive or non-muscle invasive stage. It is critical to identify novel molecular biomarkers for early detection and target therapy. Plasma proteins secreted by tumor tissues have excellent potential as biomarkers for UTUC.

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Introduction: We aimed to compare oncological outcomes by surgery type (segmental ureterectomy [SU] vs. radical nephroureterectomy [RNU]) in a large cohort of patients with upper tract urothelial carcinoma (UTUC) of the distal ureter.

Methods: We performed a retrospective analysis of 219 patients with UTUC of the distal ureter among 931 patients with UTUC who underwent SU and RNU.

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Objective: To compare preoperative predictors of nonorgan-confined (NOC) disease in patients with upper-tract urothelial carcinoma (UTUC) from the United States (US) and China.

Methods: Clinicopathologic data of patients with UTUC treated surgically at tertiary care facilities in the US or China from 1998 to 2015 were, retrospectively, compiled. Patient characteristics, preoperative imaging, cytology, ureteroscopic findings, and serum markers (neutrophil-to-lymphocyte ratio, estimated glomerular filtration rate, hemoglobin, and albumin) were evaluated.

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Purpose: We evaluated differences in clinicopathological characteristics and oncologic outcomes between patients with upper tract urothelial carcinoma in mainland China and the United States.

Materials And Methods: We retrospectively compiled clinicopathological and oncologic outcomes data on patients with upper tract urothelial carcinoma treated surgically at tertiary care medical facilities in the United States or China from 1998 to 2015. Baseline demographics, comorbidities and pathological features were evaluated.

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