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Characteristics and prognosis of small bowel tumors: A retrospective study

BACKGROUND Small bowel tumors (SBTs) are a heterogeneous group of difficult-to-diagnose tumors that account for 2%-5% of all gastrointestinal tumors. Single-balloon enteroscopy greatly enhances the diagnosis and treatment of SBTs. However, few epidemiological studies have been conducted in Taiwan to determine the clinical profile of SBTs. AIM To investigate the clinical characteristics, managements and prognosis of SBTs in a medical center in Taiwan. METHODS The study enrolled 51 patients aged 58.9 ± 8.8 years (range, 22-93) diagnosed with SBTs from November 2009 to July 2021. We retrospectively recorded clinical characteristics, indications, endoscopic findings, pathological results, management, and outcomes for further analysis. RESULTS A male preponderance was observed (56.8%). The most common indications were suspected small intestinal tumors (52.9%) and obscure gastrointestinal bleeding (39.2%). The most common tumor location was the ileum (41.2%). The performance of imaging studies (P = 0.004) and the types of findings (P = 0.005) differed significantly between malignant and benign SBTs. The most frequent imaging finding was a small intestinal mass (43.1%). The top three malignant tumor types were gastrointestinal stromal tumors (GISTs), adenocarcinomas, and lymphomas. Moreover, the proportions of benign and malignant tumors were 27.5% and 72.5%, respectively. The survival rates of patients with malignant tumors in the GIST and non-GIST groups differed significantly (P = 0.015). Kaplan–Meier survival analysis showed a significant difference in survival between patients in the malignant and benign groups (P = 0.04). All patients with lymphoma underwent chemotherapy (n = 7/8, 87.5%), whereas most patients with GISTs underwent surgery (n = 13/14, 92.8%). CONCLUSION Patients with GISTs have a significantly higher survival rate than those with other malignant SBTs. Therefore, a large-scale nationwide study is warranted to evaluate the population-based epidemiology of SBTs.

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Advances in epidural labor analgesia: Effectiveness and treatment strategies of butorphanol

In this editorial, we provide a critical review of the article by Tang et al published in the World J Clin Cases , focusing on the utilization of butorphanol for epidural analgesia during labor. Our discussion encompasses recent research developments in epidural labor analgesia, specifically highlighting the current status of clinical applications of butorphanol and associated treatment approaches. Epidural analgesia is widely acknowledged as the primary method for pain management during labor, offering effective and prolonged pain relief while allowing mothers to remain alert and actively participate in the delivery process. Among the various drugs utilized for epidural labor analgesia, butorphanol has received increasing attention due to its potential efficacy and distinctive pharmacological properties. As a synthetic opioid analgesic, butorphanol exhibits both agonistic and antagonistic activity on opioid receptors, striking a balance between analgesia and minimizing side effects. Nevertheless, the safety and efficacy of butorphanol in epidural labor analgesia remains controversial. While certain studies have reported positive outcomes with butorphanol, including effective pain relief and a reduced incidence of side effects, others have raised concerns about its safety and efficacy compared to traditional opioids or alternative analgesics. In addition, the optimal dosing strategy and regimen of butorphanol as an adjuvant in epidural labor analgesia still need to be verified. Through comprehensive synthesis and analysis of existing literature, we aim to evaluate the current evidence regarding the use of butorphanol for epidural labor analgesia, delineate areas of consensus and controversy, and propose future avenues for research and clinical practice in this domain.

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Interobserver and intraobserver reliability of skull base angles measured on magnetic resonance images

BACKGROUND Determination of platybasia and basilar kyphosis are significant parts of routine cranial magnetic resonance (MR) interpretations. These situations may explain a patient’s symptoms or may be associated with other anomalies. AIM To indicate the interobserver and intraobserver reliability of the skull base angles (SBA) (Koenigsberg standard) and modified SBA (mSBA) measurement techniques. METHODS In total, 391 patients who had undergone cranial MR imaging were re-assessed regarding the SBA measurements. The SBA and mSBA techniques were used on MR images. Two reviewers independently measured the same angles twice within a 15-day interval, using different monitors. Intraclass correlation coefficient (ICC) was calculated to reveal the intraobserver and interobserver agreements. RESULTS There was an excellent agreement between reviewers regarding both angle measurements (ICC was 0.998 for SBA and mSBA). Excellent agreement levels were also observed for intraobserver measurements. ICC was 0.998 for SBA and 0.999 for mSBA for reviewer 1. ICC was 0.997 for SBA and 0.999 for mSBA according to the measurement results of reviewer 2. Higher SBA and mSBA values were observed for females compared to males. There was no correlation between SBA and age for SBA. However, a negative and low-level correlation was observed between mSBA values and age for both reviewers. CONCLUSION SBA and mSBA measurements indicated excellent agreement regarding interobserver and intraobserver differences. The study results showed that SBA angles were reliable measurement techniques to be used on MR images.

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