Publications by authors named "Xiang-yang Chang"

Background: Visceral pain is common in cesarean sections conducted under combined spinal-epidural anesthesia (CSE). Epidural volume extension (EVE) is a technique for enhancing the effect of intrathecal blocks by inducing epidural fluid boluses in the CSE. Whether EVE that uses different drugs can reduce visceral pain during cesarean sections is rarely studied.

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Background: To investigate the clinical features, imaging manifestations, and pathological characteristics of mixed epithelial stromal tumor of the kidney (MESTK) to improve the understanding of MESTK and the accuracy of preoperative imaging diagnosis.

Methods: The clinical, imaging, and pathological data of 3 patients with MESTK confirmed by postoperative pathology were retrospectively analyzed.

Results: Three patients with MESTK were middle-aged women with no obvious clinical symptoms.

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Background: Epidural clonidine improves analgesia but may induce adverse effects in labor.

Objective: To evaluate the efficacy and safety of epidural clonidine as local anesthetics (LA) adjuvant by continuous infusion or patient-controlled epidural analgesia (PCEA) in labor.

Search Strategy: PubMed, Embase, Web of Science, and CENTRAL were searched from inception to May 10, 2022 without language restriction; references of the retrieved studies were hand searched.

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Article Synopsis
  • A study was conducted to compare the prevalence of "risk stomach" (high gastric volume) in laboring women who were allowed to eat versus non-laboring women who were fasted before a cesarean delivery.
  • The results showed that 68% of laboring women had a risk stomach compared to none of the non-laboring women, indicating a significant difference.
  • The findings suggest that gastric ultrasound can be beneficial for monitoring laboring women’s gastric status, especially if general anesthesia is needed unexpectedly.*
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Objectives: Intrathecal morphine (ITM) is frequently associated with side effects such as postoperative nausea and vomiting (PONV) and pruritus. The aim of this meta-analysis was to compare the impact of transversus abdominis plane (TAP) block versus ITM on side effects following cesarean delivery.

Materials And Methods: PubMed, Embase, Web of Science, and CENTRAL were searched for randomized controlled trials that compared TAP with ITM for cesarean delivery.

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Background: The intrathecal hyperbaric bupivacaine dosage for cesarean section is difficult to predetermine. This study aimed to develop a decision-support model using a machine-learning algorithm for assessing intrathecal hyperbaric bupivacaine dose based on physical variables during cesarean section.

Methods: Term parturients presenting for elective cesarean section under spinal anaesthesia were enrolled.

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Purpose: Carboprost may induce adverse reactions when used to treat postpartum hemorrhage. We aimed to explore the effects of intravenous infusion of low-dose remifentanil to prevent such reactions.

Methods: We enrolled parturient patients scheduled for elective cesarean section.

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Background: There is a risk of inadvertent dural or vascular puncture for the traditional single-shot caudal block performed by inserting the needle into the sacral canal through the sacral hiatus. This prospective, randomized study was to evaluate the clinical feasibility of the hiatus injection under ultrasound guidance for caudal block in children.

Methods: 140 ASA I-II children undergoing inguinal hernia repair were randomly allocated to one of two groups (Group C or Group H, n = 70).

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In the present paper, the correlations between sixteen elements from the dry method roasted dust-slag of pyrite and sixteen elements from the soil layer near and far from the store area were studied by ICP-MS. Similar radio and outstanding different radio of the elements between the dust-slag and the soil were studied too. It was discovered that in the pollution soil layer Tl, Cd, Cs, Cu, Zn, Mn, Pb and Ni were easy to be identified and had similar radio with the elements in the dust-slag.

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The activation of microglia and astrocytes in the spinal cord is involved in the progress of cancer pain. Propentofylline (PPF), a glial modulating agent, alleviates pain hypersensitivity in neuropathic pain models. The present study investigated the potential roles of PPF in a preclinical rat model of bone caner pain established by inoculating Walker 256 cells into the left tibia.

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Background: Ropivacaine and levobupivacaine have been introduced into obstetric analgesic practice with the proposed advantages of causing less motor block and toxicity compared with bupivacaine. However, it is still controversial whether both anesthetics are associated with any clinical benefit relative to bupivacaine for labor analgesia. This study aimed to compare the analgesic efficacy, motor block and side effects of bupivacaine, ropivacaine and levobupivacaine at lower concentrations for patient-controlled epidural labor analgesia.

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To obtain the seasonal and vertical distribution and partition of PAHs between dissolved phase and particle phase in Xijiang River basin, water columns were collected during flood seasons (August, 2003 and July, 2004) and dry seasons (November, 2003 and Mar, 2004) from Gaoyao section of Xijiang River. The average PAHs concentrations in dissolved phase and particle phase were 21.7-138 ng x L(-1), 40.

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The Yunfu pyrite was the second biggest pyrite bed in the world. Plants using industrial ore of the Yunfu pyrite are distributed in many sections across the country. In the present paper, elements V, Cr, Co, Cu, Zn, Mo, Cd, Sb, Rb and Cs in soil profiles in slag disposing area of a sulfuric acid plant using industrial ore of theYunfu pyrite were studied.

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