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JOURNAL ARTICLE
Satoshi Tsutsumi, Natsuki Sugiyama, Hideaki Ueno, Hisato Ishii
PURPOSE: The chordae Willisii (CWs), trabecular projections into the lumen of the dural sinuses, are not well understood. We aimed to explore them using magnetic resonance imaging (MRI). METHODS: Eighty-five patients underwent volumetric contrast-enhanced MRI, while another 30 underwent a fluid-attenuated inversion recovery (FLAIR) sequence in the coronal section. RESULTS: The CWs were detected as linear filling defects lying in the dural sinuses, adjacent to the surrounding dura mater...
May 11, 2024: Surgical and Radiologic Anatomy: SRA
#2
JOURNAL ARTICLE
Ivan Malashin, Daniil Daibagya, Vadim Tynchenko, Andrei Gantimurov, Vladimir Nelyub, Aleksei Borodulin
Nafion, a versatile polymer used in electrochemistry and membrane technologies, exhibits complex behaviors in saline environments. This study explores Nafion membrane's IR spectra during soaking and subsequent drying processes in salt solutions at various concentrations. Utilizing the principles of Fick's second law, diffusion coefficients for these processes are derived via exponential approximation. By harnessing machine learning (ML) techniques, including the optimization of neural network hyperparameters via a genetic algorithm (GA) and leveraging various regressors, we effectively pinpointed the optimal model for predicting diffusion coefficients...
April 25, 2024: Polymers
#3
JOURNAL ARTICLE
Jiunyuan Chen, Chiachung Chen
Phalaenopsis orchids are a popular ornamental plant in the flower market. During some festivals, demand increases significantly. These mature orchids must be placed in cooling rooms for inflorescence formation at specific times to increase the financial return from their sale. The purpose of this study is to evaluate the effect of day and night temperatures on the inflorescence formation percentage using the proposed sigmoid model. Four varieties that are cultured in different vegetative temperature regimes are placed in a cooling room...
May 6, 2024: Plants (Basel, Switzerland)
#4
JOURNAL ARTICLE
Alfredo Clemente, Guerino Selva, Michael Berks, Federica Morrone, Aniello Alessandro Morrone, Michele De Cristofaro Aulisa, Ekaterina Bliakharskaia, Andrea De Nicola, Armando Tartaro, Paul E Summers
Tofts models have failed to produce reliable quantitative markers for prostate cancer. We examined the differences between prostate zones and lesion PI-RADS categories and grade group (GG) using regions of interest drawn in tumor and normal-appearing tissue for a two-compartment uptake (2CU) model (including plasma volume (vp ), plasma flow (Fp ), permeability surface area product (PS), plasma mean transit time (MTTp ), capillary transit time (Tc ), extraction fraction (E), and transfer constant (Ktrans )) and exponential (amplitude (A), arrival time (t0 ), and enhancement rate (α)), sigmoidal (amplitude (A0 ), center time relative to arrival time (A1 - T0 ), and slope (A2 )), and empirical mathematical models, and time to peak (TTP) parameters fitted to high temporal resolution (1...
April 23, 2024: Diagnostics
#5
JOURNAL ARTICLE
Marwan T Mezher, Alejandro Pereira, Tomasz Trzepieciński, Jorge Acevedo
The automobile industry relies primarily on spot welding operations, particularly resistance spot welding (RSW). The performance and durability of the resistance spot-welded joints are significantly impacted by the welding quality outputs, such as the shear force, nugget diameter, failure mode, and the hardness of the welded joints. In light of this, the present study sought to determine how the aforementioned welding quality outputs of 0.5 and 1 mm thick austenitic stainless steel AISI 304 were affected by RSW parameters, such as welding current, welding time, pressure, holding time, squeezing time, and pulse welding...
May 6, 2024: Materials
#6
JOURNAL ARTICLE
Mario Serradilla-Martín, Celia Villodre, Laia Falgueras-Verdaguer, Natalia Zambudio-Carroll, José T Castell-Gómez, Juan L Blas-Laina, Vicente Borrego-Estella, Carlos Domingo-Del-Pozo, Gabriel García-Plaza, Francisco J González-Rodríguez, Eva M Montalvá-Orón, Ángel Moya-Herraiz, Sandra Paterna-López, Miguel A Suárez-Muñoz, Maialen Alkorta-Zuloaga, Gerardo Blanco-Fernández, Enrique Dabán-Collado, Miguel A Gómez-Bravo, José I Miota-de-Llamas, Fernando Rotellar, Belinda Sánchez-Pérez, Santiago Sánchez-Cabús, David Pacheco-Sánchez, Juan C Rodríguez-Sanjuan, María A Varona-Bosque, Lucía Carrión-Álvarez, Sofía de la Serna-Esteban, Cristina Dopazo, Elena Martín-Pérez, David Martínez-Cecilia, María J Castro-Santiago, Dimitri Dorcaratto, Marta L Gutiérrez-Díaz, José M Asencio-Pascual, Fernando Burdío-Pinilla, Roberto Carracedo-Iglesias, Alfredo Escartín-Arias, Benedetto Ielpo, Gonzalo Rodríguez-Laiz, Andrés Valdivieso-López, Emilio De-Vicente-López, Vicente Alonso-Orduña, José M Ramia
(1) Background: The liver-first approach may be indicated for colorectal cancer patients with synchronous liver metastases to whom preoperative chemotherapy opens a potential window in which liver resection may be undertaken. This study aims to present the data of feasibility and short-term outcomes in the liver-first approach. (2) Methods: A prospective observational study was performed in Spanish hospitals that had a medium/high-volume of HPB surgeries from 1 June 2019 to 31 August 2020. (3) Results: In total, 40 hospitals participated, including a total of 2288 hepatectomies, 1350 for colorectal liver metastases, 150 of them (11...
April 26, 2024: Cancers
#7
JOURNAL ARTICLE
Fabrizio Salvinelli Chief, Francesca Bonifacio, Carlo A Mallio, Andrea Pescosolido, Giulia Chiappino, Fabio Greco, Maurizio Iacoangeli Chief
PURPOSE: The most used neurosurgical approach to reach cerebellar-pontine angle is the retrosigmoid route. This article describes the presigmoid approach which requires excellent knowledge of the labyrinthine block together with quantitative analysis of temporal bone CT. METHODS: CT-based quantitative measurements were obtained in patients undergoing vestibular neurectomy with a presigmoid approach. Eighteen patients were enrolled, and five measures were taken: Trautmann's area, the petro-clival angle, presigmoid dura length and its angle...
May 8, 2024: Acta otorrinolaringologica española
#8
COMPARATIVE STUDY
Jie Wang, Jiajie Zhou, Shuai Zhao, Ruiqi Li, Yayan Fu, Longhe Sun, Wei Wang, Liuhua Wang, Daorong Wang
Robot-assisted laparoscopic anterior resection is a novel technique. However, evidence in the literature regarding the advantages of robot-assisted laparoscopic surgery (RLS) is insufficient. The aim of this study was to compare the outcomes of RLS versus conventional laparoscopic surgery (CLS) for the treatment of sigmoid colon cancer. We performed a retrospective study at the Northern Jiangsu People's Hospital. Patients diagnosed with sigmoid colon cancer and underwent anterior resection between January 2019 to September 2023 were included in the study...
May 10, 2024: Journal of Robotic Surgery
#9
JOURNAL ARTICLE
Shelly I Shiran, Li-Tal Pratt, Ari DeRowe, Sophie Matot, Narin Carmel Neiderman, Oshri Wasserzug
BACKGROUND AND PURPOSE: Fusobacterium necrophorum ( F necrophorum ) is an anaerobic bacteria that causes invasive head and neck infections in children. Several studies have demonstrated an increasing prevalence of F necrophorum as the causative agent in acute mastoiditis in children, with associated high rates of intracranial complications such as epidural abscess and sinus venous thrombosis, to name a few. F necrophorum requires a treatment protocol that differs from the empiric treatment that is tailored to more common pathogens (eg, group A streptococci, Streptococcus pneumonia), and hence expediting the diagnosis is important...
May 9, 2024: AJNR. American Journal of Neuroradiology
#10
JOURNAL ARTICLE
Arina V Martyshina, Anna G Sirotkina, Irina V Gosteva
Hepatocyte lipid and glucose metabolism is regulated not only by major hormones like insulin and glucagon but also by many other factors, including calcium ions. Recently, mitochondria-associated membrane (MAM) dysfunction combined with incorrect IP3 -receptor regulation has been shown to result in abnormal calcium signaling in hepatocytes. This dysfunction could further lead to hepatic metabolism pathology. However, the exact contribution of MAM dysfunction, incorrect IP3 -receptor regulation and insulin resistance to the calcium-insulin-glucagon interplay is not understood yet...
May 6, 2024: Bio Systems
#11
JOURNAL ARTICLE
John Choi, Qian Wang, Melanie Beaton, Richard B Kim, Reena Khanna, Aze Wilson
BACKGROUND: We aimed to determine the correlation between tissue and plasma infliximab concentrations in an outpatient ulcerative colitis (UC) cohort based on histologic disease activity in addition to their relationship with long-term clinical outcomes. We assessed intraparticipant variability in infliximab concentrations between adjacent intestinal samples and the correlation between disease activity and tumor necrosis factor-α (TNF-α). METHODS: A prospective cohort study was conducted in participants with UC receiving infliximab...
May 8, 2024: Inflammatory Bowel Diseases
#12
Hasan Saleh, Induja R Nimma, Yuting Huang, Dana Amiraian, Maoyin Pang, Michelle DeLeon, Johanna Chan, Michele D Lewis, Jana G Hashash
Severe acute pancreatitis can cause systemic inflammation and multiorgan failure. We present the case of a 60-year-old woman who presented with necrotizing pancreatitis and subsequently developed a sigmoid colon perforation. The perforation presumably occurred because of extravasation of pancreatic enzymes into the abdominal cavity, resulting in colonic wall injury. Our case highlights the rare colonic complications of severe acute pancreatitis.
May 2024: ACG Case Reports Journal
#13
Aldin Malkoc, Lana Mamoun, Harpreet Gill, Danielle Cremat, Gbemisola Lawal, William Sherman
It is extremely rare for blunt abdominal trauma to result in serious injuries to hollow organs. Degloving injuries of the colon are one of the rarest injuries following blunt abdominal trauma. Intestinal degloving is often seen following rapid deceleration, changes in velocity, crushes and motor vehicle collisions (MVCs). Victims with intestinal degloving injuries can experience vague symptoms despite the severity of the lesion. We present the case of a 21-year-old male with insulin-dependent type 1 diabetes who was involved in a high-speed MVC...
May 2024: Journal of Medical Cases
#14
REVIEW
Kyriakos Papadimitriou, Cassidy Werner, Timothy G White, Danielle Golub, Shyle H Mehta, Justin Turpin, Kevin Shah, Athos Patsalides
Venous sinus stenting for dural venous sinus outflow obstruction due to an intrinsic filling obstruction or extrinsic stenosis is an increasingly popular treatment strategy for idiopathic intracranial hypertension (IIH) and isolated pulsatile tinnitus (PT). The most common site of stenosis is the lateral venous sinus at the transverse-sigmoid junction. Approximately 10% of the population has a persistent occipital venous sinus (OVS), a variant that may be the dominant venous drainage pathway in the setting of a hypoplastic or aplastic transverse sinus...
May 7, 2024: Interventional Neuroradiology
#15
JOURNAL ARTICLE
Jia Liu, Jian Tan, Haotian Wang, Yixuan Tan, Junqiang Qi, Rukun Chen, Jian Huang, Chao Zhu, Junming Tan, Wen Yuan, Changgui Shi, Guohua Xu
OBJECTIVE: Focal cervical kyphotic deformity (FCK) without neurologic compression is not uncommon in patients with cervical spondylotic myelopathy (CSM) who underwent anterior cervical decompression and fusion (ACDF) surgery. It remains unclear whether FCK at non-responsible levels needs to be treated simultaneously. This study aims to investigate whether FCK at non-responsible levels is the prognostic factor for CSM and elucidate the surgical indication for FCK. METHODS: Patients with CSM who underwent ACDF between January 2016 and April 2021 were included...
May 7, 2024: Orthopaedic Surgery
#16
JOURNAL ARTICLE
Jakob B Seidelin, Mariana Bronze, Anja Poulsen, Mohamed Attauabi, Anders Woetmann, Benjamin E Mead, Jeffrey M Karp, Lene B Riis, Jacob T Bjerrum
Although impaired regeneration is important in many gastrointestinal diseases including ulcerative colitis (UC), the dynamics of mucosal regeneration in humans are poorly investigated. We have developed a model to study these processes in vivo in humans. Epithelial restitution (ER) and extracellular matrix (ECM) regulation after an experimental injury of the sigmoid colonic mucosa was assessed by repeated high resolution endoscopic imaging, histologic assessment, RNA sequencing, deconvolution analysis, and 16S rDNA sequencing of the injury niche microbiome of 19 UC patients in remission and 20 control subjects...
May 7, 2024: American Journal of Physiology. Gastrointestinal and Liver Physiology
#17
JOURNAL ARTICLE
Kollatos Christos, Sköldberg Filip, Graf Wilhelm
BACKGROUND: Laparoscopic lavage (LPL) has been suggested for treatment of non-feculent perforated diverticulitis. In this observational study, the surgical treatment of diverticular disease in Sweden outside prospective trials was investigated. METHODS: This population-based study used the National Patient Register to identify all patients in Sweden with emergency admissions for diverticular disease, as defined by ICD codes from July 2014 to December 2020. Demographics, surgical procedures and outcomes were assessed...
May 3, 2024: British Journal of Surgery
#18
REVIEW
Joachim Cheng En Ho, Aryan Raj Goel, Adriel Heilong Fung, Irshad Shaikh, Muhammad Rafaih Iqbal
Colorectal surgery has progressed greatly via minimally invasive techniques, laparoscopic and robotic. With the advent of ERAS protocols, patient recovery times have greatly shortened, allowing for same day discharges (SDD). Although SDD have been explored through laparoscopic colectomy reviews, no reviews surrounding robotic ambulatory colorectal resections (RACrR) exist to date. A systematic search was carried out across three databases and internet searches. Data were selected and extracted by two independent reviewers...
May 7, 2024: Journal of Robotic Surgery
#19
Xueyi Lin, Min Lin
Here we report a successful case of a small bowel lesion obtained through EUS-FNB via the sigmoid colon after routine small bowel endoscopy failed due to bowel volvulus. This case highlights the feasibility of EUS-FNB in small intestine lesion acquisition through sigmoid colon.
May 7, 2024: Journal of Clinical Ultrasound: JCU
#20
JOURNAL ARTICLE
Gabriele B Papini, Alberto G Bonomi, Francesco Sartor
Introduction: This study aimed to model below and above anaerobic threshold exercise-induced heart rate (HR) drift, so that the corrected HR could better represent <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mover><mml:mrow><mml:mi>V</mml:mi></mml:mrow><mml:mo>˙</mml:mo></mml:mover></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>O</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:msub></mml:math> kinetics during and after the exercise itself...
2024: Frontiers in Physiology
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