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https://www.readbyqxmd.com/read/29330275/case-of-chest-pain-in-a-young-man
#1
Ankit Gupta, Atul Vijay Palkar, Priya Narwal
A young man with a history of smoking presented with acute-onset chest pain after lifting weights. He also noticed a change in his voice, tightness in his neck and difficulty breathing. A chest radiograph showed soft tissue emphysema in the neck. A CT scan of the chest revealed moderate amount of pneumomediastinum tracking into the neck and down to the diaphragm. He was haemodynamically stable and had no hypoxia or dysphagia. He was monitored for 48 hours and discharged home after resolution of his symptoms...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29327943/phenotyping-pharyngeal-pathophysiology-using-polysomnography-in-patients-with-obstructive-sleep-apnea
#2
Scott A Sands, Bradley A Edwards, Philip I Terrill, Luigi Taranto-Montemurro, Ali Azarbarzin, Melania Marques, Lauren Hess, David P White, Andrew Wellman
RATIONALE: Therapies for obstructive sleep apnea (OSA) could be administered based on a patient's own phenotypic causes ("traits") if a clinically-applicable approach were available. Here we present a novel approach to quantify two key contributors to OSA-pharyngeal collapsibility and compensatory muscle responsiveness-that is applicable to diagnostic polysomnography. METHODS: Based on physiological definitions, pharyngeal collapsibility determines the ventilation at normal (eupneic) ventilatory drive during sleep, and pharyngeal compensation determines the rise in ventilation accompanying a rising ventilatory drive...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29327265/successful-diagnosis-of-an-occult-fallopian-tube-carcinoma-detected-from-the-diaphragm-metastasis
#3
Takahide Toyoda, Hidemi Suzuki, Takahiro Nakajima, Takekazu Iwata, Ayumu Matsuoka, Kyoko Nishikimi, Yoko Yonemori, Makio Shozu, Yukio Nakatani, Ichiro Yoshino
We herein reported a rare case of an occult fallopian tube carcinoma first detected from the diaphragm metastasis. An 83-year-old woman who had a 30-mm tumor on the right diaphragm underwent radical resection. Pathologically, the tumor was diagnosed as a high-grade serous adenocarcinoma, suggesting metastasis from the pelvic visceral carcinoma. Although the primary site could not be detected by imaging examinations, laparoscopy revealed multiple peritoneal disseminations; therefore, total hysterectomy was performed...
January 11, 2018: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29325292/-therapeutic-effect-of-transcatheter-arterial-chemoembolization-combined-with-ultrasound-guided-microwave-ablation-for-treatment-of-liver-cancer-in-special-sites
#4
A Liu, W Xu, H Xu, Y Wang, Y M Gu
Objective: To investigate the efficacy and clinical value of transcatheter arterial chemoembolization (TACE) combined with ultrasound-guided microwave ablation for the treatment of liver cancer in special sites. Methods: The patients with liver cancer in special sites (the liver cancer was adjacent to the gallbladder, dome of diaphragm, gastrointestinal tract, heart, great vessels, and portal vein, with the shortest distance from the tumor to the organ/lumen < 0.5 cm ) were enrolled as treatment group, and the patients with primary liver cancer in normal sites treated in our hospital during the same period were randomly enrolled as control group...
December 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29324533/multicenter-clinicopathological-study-of-high-grade-serous-carcinoma-presenting-as-primary-peritoneal-carcinoma
#5
Shinichi Komiyama, Yoshihiro Nishijima, Haruhiro Kondo, Hiroyuki Nomura, Satoshi Yamaguchi, Masayuki Futagami, Hiroharu Arai, Yoshihito Yokoyama, Nao Suzuki, Mikio Mikami, Kaneyuki Kubushiro, Daisuke Aoki, Yasuhiro Udagawa, Ryuichiro Nishimura
OBJECTIVE: We conducted a multicenter clinicopathological study to characterize patients with high-grade serous carcinoma presenting as primary peritoneal carcinoma (clinical PPC). METHODS: At 9 sites in Japan, patients with clinical PPC diagnosed according to Gynecologic Oncology Group criteria were enrolled retrospectively. The Gynecologic Oncology Group criteria allow for minor ovarian involvement by high-grade serous carcinoma. There was no systematic detailed histopathological review of the fallopian tubes to determine whether they were involved by serous carcinoma...
January 10, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29323161/lack-of-fgf18-causes-abnormal-clustering-of-motor-nerve-terminals-at-the-neuromuscular-junction-with-reduced-acetylcholine-receptor-clusters
#6
Kenyu Ito, Bisei Ohkawara, Hideki Yagi, Hiroaki Nakashima, Mikito Tsushima, Kyotaro Ota, Hiroyuki Konishi, Akio Masuda, Shiro Imagama, Hiroshi Kiyama, Naoki Ishiguro, Kinji Ohno
FGF receptor 2 is involved in the formation of the neuromuscular junction (NMJ), but its in vivo ligand remains to be determined. Laser capture microdissection of the mouse spinal motor neurons (SMNs) revealed that Fgf18 mRNA is highly expressed in SMNs in adults. Expression of Fgf18 mRNA was the highest in the spinal cord at embryonic day (E) 15.5, which gradually decreased to postnatal day 7. FGF18 protein was localized at the NMJs of the tibialis anterior muscle at E18.5 and in adults. Fgf18-/- mice at E18...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320561/%C3%AE-smooth-muscle-actin-is-not-a-marker-of-fibrogenic-cell-activity-in-skeletal-muscle-fibrosis
#7
Wanming Zhao, Xingyu Wang, Kai-Hui Sun, Lan Zhou
α-Smooth muscle actin (α-SMA) is used as a marker for a subset of activated fibrogenic cells, myofibroblasts, which are regarded as important effector cells of tissue fibrogenesis. We address whether α-SMA-expressing myofibroblasts are detectable in fibrotic muscles of mdx5cv mice, a mouse model for Duchenne muscular dystrophy (DMD), and whether the α-SMA expression correlates with the fibrogenic function of intramuscular fibrogenic cells. α-SMA immunostaining signal was not detected in collagen I (GFP)-expressing cells in fibrotic muscles of ColI-GFP/mdx5cv mice, but it was readily detected in smooth muscle cells lining intramuscular blood vessel walls...
2018: PloS One
https://www.readbyqxmd.com/read/29320327/atypical-sites-of-deeply-infiltrative-endometriosis-clinical-characteristics-and-imaging-findings
#8
Luciana P Chamié, Duarte Miguel Ferreira Rodrigues Ribeiro, Dario A Tiferes, Augusto Cesar de Macedo Neto, Paulo C Serafini
Endometriosis is defined as the presence of endometrial tissue that is located outside the uterine cavity and associated with fibrosis and inflammatory reaction. It is a polymorphic and multifocal disease with no known cure or preventive mechanisms. Patients may be asymptomatic or may experience chronic pelvic pain, dysmenorrhea, dyspareunia, or infertility. The pelvic cavity is the most common location for endometriotic implants, which usually affect the retrocervical space, ovaries, vagina, rectosigmoid colon, bladder dome, and round ligaments...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29319015/a-practical-technique-in-laparoscopic-diaphragm-pacing-surgery-retrospective-analyse-of-43-patients
#9
Volkan Karacam, Aydin Sanli, Kemal Can Tertemiz, Ilknur Ulugun
INTRODUCTION: Diaphragm pacing stimulation (DPS) is a treatment method used in respiratory failure occurs in diseases such as high-level cervical spinal cord injury, central hypoventilation syndrome and amyotrophic lateral sclerosis. MATERIALS AND METHODS: A total of 43 patients, who had undergone DPS implantation surgery were evaluated retrospectively. The patients were divided into two groups according to the surgical technique (Group 1: classical surgical technic and Group 2: modified surgical technic) applied...
January 10, 2018: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/29318350/-benign-mesenchymal-tumors-of-the-abdomen
#10
REVIEW
P A Kupczyk, G M Kukuk
BACKGROUND: Benign mesenchymal tumors of the abdomen are-except for hemangiomas-rare neoplasms that are associated with potentially life-threatening complications. Thus, awareness of the most important entities and knowledge of their imaging characteristics is fundamental for the radiologist. OBJECTIVES: An overview of the most frequent benign abdominal soft tissue tumors and their common imaging features is given. Furthermore, other facts concerning the individual entities that are relevant to radiologic practice are outlined...
January 9, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29316265/effects-of-chronic-hypoxia-on-diaphragm-function-in-deer-mice-native-to-high-altitude
#11
Neal J Dawson, Sulayman A Lyons, Danielle A Henry, Graham R Scott
AIM: We examined the effects of chronic hypoxia on diaphragm function in high- and low-altitude populations of Peromyscus mice. METHODS: Deer mice (P. maniculatus) native to high altitude and congeneric mice native to low altitude (P. leucopus) were born and raised in captivity to adulthood, and were acclimated to normoxia or hypobaric hypoxia (12 or 9 kPa, simulating hypoxia at 4300 m and 7000 m) for 6-8 weeks. We then measured indices of mitochondrial respiration capacity, force production, and fatigue resistance in the diaphragm...
January 9, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29316066/smarcb1-ini1-baf47-deficient-pleural-malignant-mesothelioma-with-rhabdoid-features
#12
Noriko Kimura, Masaru Hasegawa, Kenzo Hiroshima
Malignant mesothelioma (MM) with rhabdoid features is an MM variant. Fifteen cases have been reported previously, all of which were combined with other types of MM. Herein, we report an autopsy case of pleural MM with monomorphic rhabdoid features. The patient was a 62-year-old male without a history of asbestos exposure. An autopsy revealed a soft, granular tumor that replaced the entire left pleura and had invaded to the diaphragm and lower lobe of the lung. The tumor cells, which had eosinophilic plump cytoplasm and eccentric nuclei, were loosely cohesive...
January 5, 2018: Pathology International
https://www.readbyqxmd.com/read/29315130/ultrasound-identification-of-diaphragm-by-novices-using-abcde-technique
#13
Jaasmit Khurana, Stephanie C Gartner, Latha Naik, Ban C H Tsui
BACKGROUND AND OBJECTIVES: In this study, we examined the consistency, rapidity, and reproducibility of the ABCDE technique for diaphragm identification. Operators using this method place the probe at the Anterior axillary line, watch for Breathing (lung sliding), and then move the probe Caudally to identify the Diaphragm for Examination. METHODS: A convenience sample of 100 patients was recruited from the preadmission clinic. Two novice operators each scanned the diaphragm using a linear ultrasound transducer in B-mode...
January 9, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29311408/hepatic-hydrothorax
#14
Yong Lv, Guohong Han, Daiming Fan
Hepatic hydrothorax (HH) is a pleural effusion that develops in a patient with cirrhosis and portal hypertension in the absence of cardiopulmonary disease. Although the development of HH remains incompletely understood, the most acceptable explanation is that the pleural effusion is a result of a direct passage of ascitic fluid into the pleural cavity through a defect in the diaphragm due to the raised abdominal pressure and the negative pressure within the pleural space. Patients with HH can be asymptomatic or present with pulmonary symptoms such as shortness of breath, cough, hypoxemia, or respiratory failure associated with large pleural effusions...
December 27, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29309360/partitioning-an-artificial-anterior-chamber-with-a-latex-diaphragm-to-simulate-anterior-and-posterior-segment-pressure-dynamics-the-dmek-practice-stage-where-surgeons-can-rehearse-the-dmek-dance
#15
Christopher S Sáles, Michael D Straiko, Ana Alzaga Fernandez, Kelly Odell, Philip K Dye, Khoa D Tran
PURPOSE: To present a novel apparatus for simulating the anterior and posterior segment pressure dynamics involved in executing Descemet membrane endothelial keratoplasty (DMEK) surgery when using a chamber-shallowing technique. METHODS: An artificial anterior chamber (AAC), 18-mm trephine, latex glove, two 3-mL syringes, and one donor cornea comprising an intact corneoscleral cap from which a DMEK tissue was peeled and punched are required for the model. After making the corneal incisions with the corneoscleral cap mounted on the AAC in the usual fashion, the corneoscleral cap is remounted onto the dried AAC over an 18-mm latex diaphragm...
February 2018: Cornea
https://www.readbyqxmd.com/read/29308260/hydrothermally-synthesized-pzt-film-grown-in-highly-concentrated-koh-solution-with-large-electromechanical-coupling-coefficient-for-resonator
#16
Guo-Hua Feng, Kuan-Yi Lee
This paper presents a study of lead zirconate titanate (PZT) films hydrothermally grown on a dome-shaped titanium diaphragm. Few articles in the literature address the implementation of hydrothermal PZT films on curved-diaphragm substrates for resonators. In this study, a 50-μm-thick titanium sheet is embossed using balls of designed dimensions to shape a dome-shaped cavity array. Through single-process hydrothermal synthesis, PZT films are grown on both sides of the processed titanium diaphragm with good adhesion and uniformity...
December 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29307165/hiatal-hernia-from-misdiagnosis-to-diagnosis
#17
Fezzeh Elyasinia, Hassan Emami Razavi, Alireza Hosseini, Firoozeh Abolhasanizade, Reza Matloub, Behnam Behboudi, Farham Ahmadi
Complications of hiatal hernia are potentially lethal, and surgical intervention is necessary. This matter is more important in cases that have ambiguous symptoms and are diagnosed with a delay. Such patients may experience life-threatening course and events. Accordingly, in this report, a 23-year-old male patient with unusual findings is presented. A 23-year-old male patient with acute dyspnea and fever was admitted in infectious disease ward with diagnosis of empyema according to chest radiography and CT-scan findings (Figures 1 and 2)...
November 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29306369/can-placing-lead-rubber-inferolateral-to-the-light-beam-diaphragm-limit-ionising-radiation-to-multiple-radiosensitive-organs
#18
C Hayre, H Bungay, C Jeffery, C Cobb, J Atutornu
INTRODUCTION: This article investigates a practical method of reducing the impact of scattered radiation during a lateral radiographic projection of the elbow. The light beam diaphragm (LBD) is generally accepted to limit ionising radiation using horizontal and longitudinal lead shutters, yet this article evidences further dose limitation by placing lead-rubber inferolateral to the LBD device. METHODS: Using an anthropomorphic phantom and arm construction scattered radiation was recorded at multiple radiosensitive organs...
February 2018: Radiography
https://www.readbyqxmd.com/read/29305892/the-involvement-of-the-pathway-connecting-the-substantia-nigra-the-periaqueductal-gray-matter-and-the-retrotrapezoid-nucleus-in-breathing-control-in-a-rat-model-of-parkinson-s-disease
#19
Juliana C Lima, Luiz M Oliveira, Marina T Botelho, Thiago S Moreira, Ana C Takakura
Parkinson's disease (PD) is characterized by a reduction in the number of dopaminergic neurons of the substantia nigra (SNpc), accompanied by motor and non-motor deficiencies such as respiratory failure. Here, our aim was to investigate possible neuronal communications between the SNpc and chemoreceptor neurons within the retrotrapezoid nucleus (RTN), in order to explain neurodegeneration and the loss of breathing function in the 6-OHDA PD animal model. Male Wistar rats received tracer injections in the SNpc, RTN and periaqueductal gray (PAG) regions to investigate the projections between those regions...
January 4, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29305407/volume-targeting-levels-and-work-of-breathing-in-infants-with-evolving-or-established-bronchopulmonary-dysplasia
#20
Katie Hunt, Theodore Dassios, Kamal Ali, Anne Greenough
OBJECTIVES: To assess the work of breathing at different levels of volume targeting in prematurely born infants with evolving or established bronchopulmonary dysplasia (BPD). DESIGN: Randomised crossover study. SETTING: Tertiary neonatal intensive care unit. PATIENTS: Eighteen infants born at <32 weeks gestation who remained ventilated at or beyond 1 week after birth, that is, they had evolving or established BPD...
January 5, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
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