Laparoendoscopic Single-site Surgery for Comprehensive Staging of Early Ovarian Cancer

Study ObjectiveTo demonstrate the procedure and suspension skills of laparoendoscopic single-site (LESS) staging surgery with infrarenal para-aortic lymphadenectomy for early-stage ovarian cancer.DesignA presentation of the surgery through this technical video.SettingA hospital.Patient and InterventionsA 45-year-old woman presented with a pelvic mass on gynecologic examination and a serum cancer antigen 125 level of 5910 U/mL (normal = <35 U/mL). A computed tomographic scan revealed a mixture of solid and cystic components (70 × 77 × 71 mm) arising from the right ovary and characterized by the “ovarian vascular pelvic” sign. Clinically early-stage ovarian cancer was suspected. Subsequently, LESS staging surgery was performed by an experienced surgeon in our department.ResultsThe surgery lasted 280 minutes, and the volume of blood loss was 50 mL; there were no intra- or postoperative complications. We “hid” the incision perfectly for cosmetic purposes. The histopathologic findings supported high-grade serous ovarian cancer of the right ovary with the left fallopian tube involved as well. In addition, a total of 34 negative pelvic and 18 negative para-aortic lymph nodes were identified, and a stage of IIA was diagnosed as a result.ConclusionWe performed an LESS staging surgery for early-stage ovarian cancer successfully. Our video shows that the LESS approach provided feasible, cosmetic, and safe access among the selected malignant gynecologic surgery. Therefore, we have experienced that the effective suspension was an auxiliary measure for LESS lymphadenectomy. In addition, compared with multiport laparoscopy, the LESS approach could provide easier access to infrarenal para-aortic regions; furthermore, it was safe and quick to extract an unknown sample.     

Factors Predicting Persistent Ectopic Pregnancy After Laparoscopic Salpingostomy or Salpingotomy for Tubal Pregnancy: A Retrospective Cohort Study

Study ObjectiveTo identify factors predictive of persistent ectopic pregnancy (PEP) in women who have undergone laparoscopic salpingostomy or salpingotomy for tubal pregnancy.DesignRetrospective cohort study (Canadian Task Force classification II-2).SettingTertiary referral center.PatientsNinety-nine women who underwent laparoscopic tubal preservation surgery for ectopic pregnancy.InterventionsSeventy women underwent laparoscopic salpingostomy, and the remaining 29 women underwent laparoscopic salpingotomy.Measurements and Main ResultsFactors predicting PEP were evaluated. The change in serum beta human chorionic gonadotropin (β-hCG) levels from baseline observed between postoperative days 5 and 10 (ChCGD5-10) was a predictor of PEP (odds ratio [OR], 0.80; p = .01). Based on receiver operating characteristic (ROC) curve analysis, a cutoff value of 93.1% was determined, with an area under the ROC curve of 0.95 (sensitivity, 85.7%; specificity, 100%). Nonetheless, when considering perioperative variables only, body mass index (BMI) was identified as a predictor of PEP (OR, 0.71; p = .03). Based on the ROC analysis, a BMI cutoff value of ≤22 kg/m² was determined, with an ROC area of 0.73 (sensitivity, 43.2%; specificity, 100%). In addition, a higher baseline β-hCG level (hazard ratio [HR], 1.0002; p = .009) and left tubal pregnancy (HR, 6.46; p = .03) were predictive of recurrent ectopic pregnancy. There were no differences in the perioperative outcomes, PEP rates, or subsequent intrauterine pregnancy rates between the salpingostomy and salpingotomy groups. In addition, surgical method was not a predictor of recurrent ectopic pregnancy.ConclusionsChCGD5-10 was identified as a predictor for PEP, suggesting that it might be more clinically useful for the follow-up of PEP. When considering perioperative variables only, BMI was a predictor for PEP. In addition, there was no significant difference in clinical outcomes between the salpingostomy and salpingotomy groups.     

Neurophysiology of hearing in patients with mucopolysaccharidosis type IV

Background

Hearing impairment is a common problem in patients with mucopolysaccharidosis IV (MPS IV) throughout their life. Many of the adult patients with MPS IV exhibit permanent or severe hearing loss. However, there has been no systematic review of detailed audiological test results in MPS IV.

Risk factors for healthcare-associated infection caused by carbapenem-resistant Pseudomonas aeruginosa

Background/purpose

The incidence of carbapenem-resistant Pseudomonas aeruginosa (CRPA) related healthcare-associated infection (HAI) has increased in recent year worldwide. This study is to investigate the risk factors associated with CRPA infections in a university hospital setting in Taiwan to provide more information for clinician and infection control system.

Deep phenotyping of patients with Tuberous Sclerosis Complex and no mutation identified in TSC1 and TSC2

Tuberous Sclerosis Complex (TSC) is a multisystemic condition caused by mutations in TSC1 or TSC2, but a pathogenic variant is not identified in up to 10% of the patients. The aim of this study was to delineate the phenotype of pediatric and adult patients with a definite clinical diagnosis of TSC and no mutation identified in TSC1 or TSC2.We collected molecular and clinical data of 240 patients with TSC, assessing over 50 variables. We compared the phenotype of the homogeneous group of individuals with No Mutation Identified (NMI) with that of TSC patients with a TSC1 and TSC2 pathogenic variant.9.17% of individuals were classified as NMI. They were diagnosed at an older age (p?=?0.001), had more frequent normal cognition (p <?0.001) and less frequent epilepsy (p =?0.010), subependymal nodules (p?=?0.022) and giant cell astrocytomas (p?=?0.008) than patients with TSC2 pathogenic variants. NMI individuals showed more frequent bilateral and larger renal angiomyolipomas (p?=?0.001; p?=?0.003) and pulmonary involvement (trend) than patients with TSC1 pathogenic variants. Only one NMI individual had intellectual disability. None presented with a subependymal giant cell astrocytoma. Other medical problems not typical of TSC were found in 42.86%, without a recurrent pattern of abnormalities. Other TSC-associated neuropsychiatric disorders and drug-resistance in epilepsy were equally frequent in the three groups.This study provides a systematic clinical characterization of patients with TSC and facilitates the delineation of a distinctive phenotype indicative of NMI patients, with important implications for surveillance.     

一种基于纹理的颅脑CT图像病变检出算法

以颅脑CT图像为研究对象用基于纹理的数字化统计图谱方法进行了病变自动化检出的研究,提出并创建基于纹理的数字化统计图谱——纹理层析图谱。通过比较待诊断颅脑CT图像与纹理层析图谱间的差异,实现颅脑CT图像中多种病变的计算机自动化检出。实验结果表明,在不知道病变种类的前提下,基于纹理层析图谱的病变检出算法可以实现颅脑CT图像所含病变的自动化检出。利用图像的纹理信息变化是实现颅脑CT图像病变检出的一个有效途径。     

生成式对抗网络在医学图像处理中的应用

近年来,研究人员将众多领域方法引入到医学图像处理中。经过不断改进,医学图像处理算法的效果和效率均得到不同程度的提高。目前,生成式对抗网络(GAN)在医学图像处理领域中的应用研究发展迅速。本文主要综述了GAN在医学图像处理中的应用研究情况,介绍了GAN的基本概念,并从医学图像降噪、检测、分割、合成、重建和分类等六个方面对GAN应用研究的最新进展进行了归纳总结,最后对该领域中值得进一步研究的方向进行了展望。     

C-reactive protein levels can predict positive 18F-FDG PET/CT findings that lead to management changes in patients with bacteremia

Background/purpose

Bacteremia portends high rates of morbidity and mortality. Although ¹⁸F-fluorodeoxyglucose positron emission tomography and computed tomography (¹⁸F-FDG PET/CT) imaging has clinical value in assessing fever of unknown origin, its usefulness in bacteremia has not been entirely elucidated. We therefore designed the current single-center retrospective study to investigate 1) the clinical value of ¹⁸F-FDG PET/CT imaging in assessing bacteremia and 2) the association between laboratory data and imaging findings.

光辅助X射线体表定位在骨科植入物内固定中的应用

背景：以往骨科内固定常使用C臂机进行体表定位,但固定中的反复透视会加大对人体的损伤及延长固定时间。 目的：探寻一种简便实用、更有利于骨科内固定的光辅助X射线体表定位技术。 方法：使用自制的简易装置将雷达状的红色激光投射在体表来辅助C臂机进行体表定位。使用SD大鼠和新西兰大白兔设计动物实验,模拟软组织内异物定位、骨折髓内钉远端锁钉置入、脊柱椎弓根螺钉进针点定位3种骨科内固定方法。分别使用传统C臂机和光辅助X射线体表定位技术各进行 30次定位。分析2种方法对操作的影响,并分析深度和活体因素对光辅助X射线体表定位技术的影响。 结果与结论：与传统C臂机定位相比,光辅助X射线体表定位技术在实验过程中能够更快的进行体表定位(P < 0.05),但定位的深度和活体因素会影响光辅助X射线体表定位技术的准确度(P < 0.05)。说明光辅助X射线体表定位技术具有简便、快速、动态化的优点,可方便骨科内固定的进行,但在固定过程中需考虑各种因素对定位准确性的影响,减小或消除这些影响因素将更好的发挥光辅助X射线体表定位技术的优势。