635 results match your criteria 195 asymptomatic

Investigating the impact of asymptomatic or mild SARS-CoV-2 infection on female fertility and fertilization outcomes: A retrospective cohort study.

EClinicalMedicine 2021 Aug 6;38:101013. Epub 2021 Jul 6.

Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.

The current study aimed to investigate the impact of asymptomatic or mild severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on female fertility and laboratory and clinical outcomes in assisted reproductive technology (ART) treatments. Patients undergoing ART treatments in the Reproductive Medicine Center, Tongji Hospital, Wuhan, from May 2020 to February 2021 were enrolled. Seventy of them were positive for serum SARS-CoV-2 antibodies (IgG and/or IgM), and 3973 patients had negative results. Read More

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Assessing the risk of SARS-CoV-2 transmission in international professional golf.

BMJ Open Sport Exerc Med 2021 17;7(2):e001109. Epub 2021 Jun 17.

School of Dental Medicine, University of Bern, Bern, Switzerland.

Objectives: There is no published data on the incidence or risk of SARS-CoV-2 transmission when playing golf, a sport played outdoors where social distancing is possible. The purpose of this prospective study was to report incidence and transmission regarding SARS-CoV-2, of professional golfers competing on the PGA European Tour across 23 events in 11 countries.

Methods: Daily symptom and temperature checks and weekly reverse transcriptase PCR (RT-PCR) screening were performed to determine potential carriage of SARS-CoV-2. Read More

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The clinical indications for testing women for .

Sex Transm Infect 2021 Jul 1. Epub 2021 Jul 1.

Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia.

Background: While the contribution of (MG) to symptoms in men is well described, less is known about its association with common genital symptoms in women. We aimed to determine the prevalence of MG and macrolide resistance, and its association with common genital symptoms in women attending a sexual health service, to inform indications for testing and clinical practice.

Methods: We undertook a cross-sectional study of symptomatic and asymptomatic women attending Melbourne Sexual Health Centre (MSHC), between April 2017 and April 2019. Read More

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Preinfection laboratory parameters may predict COVID-19 severity in tumor patients.

Cancer Med 2021 07 13;10(13):4424-4436. Epub 2021 Jun 13.

Klinik für Hämatologie, Medizinische Onkologie und Palliativmedizin, Marien Kliniken Siegen, Siegen, Germany.

Background: Infection with SARS-CoV-2 leads to COVID-19, the course of which is highly variable and depends on numerous patient-specific risk factors. Patients with tumor diseases are considered to be more susceptible to severe COVID-19; however, they also represent a heterogeneous group of individuals with variable risk. Identifying specific risk factors for a severe course of COVID-19 in patients with cancer is of great importance. Read More

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SARS-CoV-2 in asymptomatic pregnant women in South Brazil: RT-PCR and serological detection.

J Perinat Med 2021 Jul 10;49(6):717-722. Epub 2021 Jun 10.

Department of Obstetrics and Gynecology, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Brazil.

Objectives: This study aims to detect the SARS-CoV-2 infection prevalence in asymptomatic pregnant women.

Methods: A group of 195 asymptomatic pregnant women who attended the prenatal care outclinic and to the obstetric emergency department was tested concomitantly for SARS-CoV-2 by RT-PCR and serological tests.

Results: The virus was detected by RT-PCR in two (1. Read More

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Minimally invasive treatment strategy for partially thrombosed anterior inferior cerebellar artery aneurysm: A case report.

Surg Neurol Int 2021 26;12:195. Epub 2021 Apr 26.

Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.

Background: Partially thrombosed anterior inferior cerebellar artery (AICA) aneurysms are extremely rare; thus, no established therapeutic approach exists.

Case Description: We report a large, partially thrombosed AICA aneurysm and discuss its therapeutic nuances. The aneurysm was asymptomatic; therefore, we aimed to treat it through a minimally invasive procedure. Read More

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Human meibum and tear film derived (O-acyl)-omega-hydroxy fatty acids in meibomian gland dysfunction.

Ocul Surf 2021 Jul 28;21:118-128. Epub 2021 May 28.

Department of Optometry and Vision Science, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, USA. Electronic address:

Purpose: The molecular basis of the tear film and lipid layer alterations in meibomian gland dysfunction (MGD) is unknown. This study aimed to identify and compare (O-acyl)-omega-hydroxy fatty acids (OAHFAs) derived from human meibum and tears in MGD.

Methods: Of 195 eligible subjects (18-84 years, 62. Read More

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Arerugi 2021 ;70(3):195-203

Department of Pediatrics, Saitama Medical Center, Jichi Medical University.

Background: We reported that post-emetic serum thymus and activation-regulated chemokine (TARC) levels may be a potential biomarker to diagnose solid food protein-induced enterocolitis syndrome (FPIES). However, there are no reports on the relationship between FPIES severity and serum TARC levels.

Methods: The subjects were 13 cases of FPIES (hen's egg=10, Wheat=1, rice=1, short-neck clam=1) for a total of 22 events (7 emergency outpatient visits, 9 positive and 6 negative results of oral food challenge test). Read More

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Tonnis Angle and Acetabular Retroversion Measurements in Asymptomatic Hips Are Predictive of Future Hip Pain: A Retrospective, Prognostic Clinical Study.

J Am Acad Orthop Surg Glob Res Rev 2020 12 7;4(12):e20.00213. Epub 2020 Dec 7.

From the Department of Orthopaedics, McGovern Medical School at UTHealth, Houston, TX (Dr. Mansour); Musculoskeletal Research Center, Children's Hospital Colorado, Aurora, CO (Mr. Carry, Ms. Holmes, and Mr. Brazell); the Department of Orthopedics, University of Colorado Denver Anschutz Medical Campus (Dr. Belton, Dr. Georgopoulos, and Dr. Miller); University of Colorado School of Medicine, Anschutz Medical Campus (Mr. Elrick); Hospital for Special Surgery, New York, NY (Dr. Sink); and Weill Cornell Medical School (Dr. Sink).

Background: This study evaluated the prevalence of radiographic abnormalities potentially indicative of femoroacetabular impingement on AP pelvic radiographs in asymptomatic adolescents and young adults and aimed to determine whether the abnormalities were predictive of future hip pain.

Methods: AP pelvis images from scoliosis radiographs were obtained from patients 12 to 25 years of age free of any clinical hip/lower extremity symptoms between January 2006 and September 2009. The following radiographic abnormalities were collected: lateral center-edge angle of Wiberg >40° or <25°, Tönnis angle <0° or >10°, acetabular retroversion (crossover sign with a posterior wall sign), acetabular overcoverage (crossover sign without a posterior wall sign), and anterior offset alpha angle, calculated using alpha angle of Nötzli >50°. Read More

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December 2020

Is Increased Kicking Leg Iliopsoas Muscle Tightness a Predictive Factor for Developing Spondylolysis in Adolescent Male Soccer Players?

Clin J Sport Med 2021 Mar 12. Epub 2021 Mar 12.

*Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; †Faculty of Sport Sciences, Waseda University, Saitama, Japan; ‡Faculty of Education and Human Sciences, Department of School Education, Teikyo University of Science, Tokyo, Japan; §School of Human and Social Sciences, Tokyo International University, Saitama, Japan; and ¶Japan Institute of Sport Sciences, Tokyo, Japan.

Objective: To identify predictive risk factors of lumbar stress (LS) fracture developing from an asymptomatic stress reaction of the pedicle among adolescent male soccer players.

Design: Prospective cohort study.

Setting: Amateur Japanese adolescent male soccer team. Read More

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[Hygiene measures against COVID-19 in routine outpatient care : Acceptance by the patients?]

Z Rheumatol 2021 May 6;80(4):348-352. Epub 2021 Apr 6.

Klinik für Rheumatologie/Klinische Immunologie, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V.-Allee 3, 93077, Bad Abbach, Deutschland.

Background: To reduce the risk of SARS-CoV‑2 infections, special hygiene measures apply to all German healthcare facilities. Despite the national goals and the existence of comprehensive testing for the detection of asymptomatic or presymptomatic SARS-CoV‑2 infections in all inpatients, no equivalent screening with rapid antigen tests has yet been established for outpatients. The acceptance of such screening with associated waiting times and inconvenience for affected patients has been insufficiently investigated. Read More

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A rare case of early congenital syphilis with patent ductus arteriosus: The continuing curse for generations.

Indian J Sex Transm Dis AIDS 2020 Jul-Dec;41(2):195-198. Epub 2020 Nov 11.

Department of DVL, Rangaraya Medical College, Kakinada, Andhra Pradesh, India.

A 19-year-old female with untreated syphilis (venereal disease research laboratory test reactive) delivered a female child at 34 weeks with low birth weight, intrauterine growth retardation, respiratory distress, and bilateral pedal edema. One week later, the baby was found to be having pansystolic murmur confirmed by ECHO as patent ductus arteriosus. At 2 weeks, the baby developed maculopapular rash; hepatomegaly; and swelling of the shoulder, knee, ankle, wrist, and medial end of the clavicle. Read More

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November 2020

Prognostic value of stress cardiovascular magnetic resonance in asymptomatic patients with known coronary artery disease.

J Cardiovasc Magn Reson 2021 03 8;23(1):19. Epub 2021 Mar 8.

Institut Cardiovasculaire Paris Sud, Cardiovascular Magnetic Resonance Laboratory, Hôpital Privé Jacques CARTIER, Ramsay Santé, 6 Avenue du Noyer Lambert, 91300, Massy, France.

Background: Several studies have established the prognostic value of vasodilator stress cardiovascular magnetic resonance (CMR) in broad population of patients with suspected or known coronary artery disease (CAD), but this specific population of asymptomatic patients with known CAD have never been formally evaluated. To assess the long-term prognostic value of vasodilator stress perfusion CMR in asymptomatic patients with obstructive CAD.

Methods: Between 2009 and 2011, consecutive asymptomatic patients with obstructive CAD referred for vasodilator stress CMR were followed for the occurrence of major adverse cardiovascular events (MACE), defined by cardiovascular mortality or recurrent non-fatal myocardial infarction (MI). Read More

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SARS CoV-2 infections in healthcare workers with a pre-existing T-cell response: a prospective cohort study.

Clin Microbiol Infect 2021 Jun 2;27(6):916.e1-916.e4. Epub 2021 Mar 2.

Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Madrid, Spain; Laboratory of Immunovirology, Hospital Universitario Ramon y Cajal, Madrid, Spain.

Objective: T-cell responses against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are observed in unexposed individuals. We evaluated the impact of this pre-existing cellular response on incident SARS-CoV-2 infections.

Methods: This was a follow-up study of 38 seronegative healthcare workers (HCWs) with previous evaluation of CD8+ and CD4+ T-cell responses after stimulation with SARS-CoV-2 structural proteins. Read More

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Host plant environmental filtering drives foliar fungal community assembly in symptomatic leaves.

Oecologia 2021 Mar 13;195(3):737-749. Epub 2021 Feb 13.

State Key Laboratory of Grassland Agro-Ecosystem, Institute of Innovation Ecology, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, People's Republic of China.

Foliar fungi (defined as all fungal species in leaves after surface sterilization; hereafter, 'FF') are of great importance to host plant growth and health, and can also affect ecosystem functioning. Despite this importance, few studies have explicitly examined the role of host filtering in shaping local FF communities, and we know little about the differences of FF community assembly between symptomatic (caused by fungal pathogens) and asymptomatic leaves, and whether there is phylogenetic congruence between host plants and FF. We examined FF communities from 25 host plant species (for each species, symptomatic and asymptomatic leaves, respectively) in an alpine meadow of the Tibetan Plateau using MiSeq sequencing of ITS1 gene biomarkers. Read More

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Urbanization's influence on the distribution of mange in a carnivore revealed with multistate occupancy models.

Oecologia 2021 Jan 4;195(1):105-116. Epub 2021 Feb 4.

Department of Fish, Wildlife, and Conservation Ecology, New Mexico State University, Las Cruces, NM, 88003, USA.

Increasing urbanization and use of urban areas by synanthropic wildlife has increased human and domestic animal exposure to zoonotic diseases and exacerbated epizootics within wildlife populations. Consequently, there is a need to improve wildlife disease surveillance programs to rapidly detect outbreaks and refine inferences regarding spatiotemporal disease dynamics. Multistate occupancy models can address potential shortcomings in surveillance programs by accounting for imperfect detection and the misclassification of disease states. Read More

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January 2021

High seroprevalence of COVID-19 infection in a large slum in South India; what does it tell us about managing a pandemic and beyond?

Epidemiol Infect 2021 02 4;149:e39. Epub 2021 Feb 4.

School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK.

People living in urban slums or informal settlements are among the most vulnerable communities, highly susceptible to coronavirus disease 2019 (COVID-19) infection and vulnerable to the consequences of the measures taken to control the spread of the virus. Fear and stigma related to infection, mistrust between officials and the population, the often-asymptomatic nature of the disease is likely to lead to under-reporting. We conducted a cross-sectional study to determine the seroprevalence of COVID-19 infection in a large slum in South India 3 months after the index case and recruited 499 adults (age >18 years). Read More

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February 2021

Large-scale IgM and IgG SARS-CoV-2 serological screening among healthcare workers with a low infection prevalence based on nasopharyngeal swab tests in an Italian university hospital: Perspectives for public health.

Environ Res 2021 04 27;195:110793. Epub 2021 Jan 27.

Department of Biomedical Science and Human Oncology, University of Bari, Bari, Italy.

Background: Healthcare workers (HCWs) are highly exposed to SARS-CoV-2 infection given their specific tasks. The IgG-IgM serological assay has demonstrated good accuracy in early detection in symptomatic patients, but its role in the diagnosis of asymptomatic patients is uncertain. The aim of our study was to assess IgM and IgG prevalence in sera in a large cohort of HCWs previously subjected to Nasopharyngeal swab test (NST) after accurate risk assessment due to positive COVID-19 patient exposure during an observation period of 90 days. Read More

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Novel typing of iliac vein compression in asymptomatic individuals evaluated by contrast enhanced CT.

Surg Radiol Anat 2021 Jul 22;43(7):1149-1157. Epub 2021 Jan 22.

The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, China.

Purpose: Compression of the iliac vein between the iliac artery and lumbosacral vertebra can cause iliac vein compression syndrome (IVCS). The purpose of this study is to assess compression characteristics and establish a new sub-typing in asymptomatic IVCS individuals using contrast-enhanced CT.

Methods: A retrospective analysis of abdomen contrast-enhanced CT images from 195 asymptomatic subjects with iliac vein compressed was investigated. Read More

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Neutralizing antibody titres in SARS-CoV-2 infections.

Nat Commun 2021 01 4;12(1):63. Epub 2021 Jan 4.

School of Public Health, The University of Hong Kong, Special Administrative Region of Hong Kong, Hong Kong, China.

The SARS-CoV-2 pandemic poses the greatest global public health challenge in a century. Neutralizing antibody is a correlate of protection and data on kinetics of virus neutralizing antibody responses are needed. We tested 293 sera from an observational cohort of 195 reverse transcription polymerase chain reaction (RT-PCR) confirmed SARS-CoV-2 infections collected from 0 to 209 days after onset of symptoms. Read More

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January 2021

COVID-19 and dental sleep medicine: risks, precautions and patient guidance.

Sleep Sci 2020 Jul-Sep;13(3):195-198

Instituto do Sono, Dentistry Division - Sao Paulo - Brazil.

COVID-19 is the offcial name for the disease caused by SARS-CoV-2, which has become a pandemic, infecting more than 5 million people worldwide. Transmission occurs by inhaling droplets generated when an infected person coughs, sneezes or exhales, or by touching contaminated surfaces and then rubbing their hands over their eyes, nose or mouth. Some infected people become seriously ill, while others have no symptoms, but even though they are asymptomatic, they can still transmit the virus. Read More

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December 2020

Clinical features and laboratory characteristics of patients hospitalized with COVID-19: single centre report from Egypt.

J Infect Dev Ctries 2020 12 31;14(12):1352-1360. Epub 2020 Dec 31.

Endemic Medicine Department, Faculty of Medicine, Helwan University, Cairo, Egypt.

Introduction: The recently discovered novel coronavirus disease (COVID-19) has emerged in Wuhan, China, since January 2020. Egypt reported a low incidence of infection when compared with other countries. The aim of the study was to assess the characterization of COVID-19 infection among the Egyptian population. Read More

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December 2020

Perioperative outcomes for carotid revascularization on asymptomatic dialysis-dependent patients meet Society for Vascular Society guidelines.

J Vasc Surg 2021 Jul 17;74(1):195-202. Epub 2020 Dec 17.

Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, Mass.

Objective: The current Society for Vascular Surgery practice guidelines recommend carotid revascularization for asymptomatic disease in patients with at least a 3-year life expectancy and stenosis >60% when the expected perioperative stroke and death rate is <3%. Based on this recommendation, it was previously determined that asymptomatic patients who require dialysis would not meet the perioperative stroke and death thresholds nor the long-term survival benchmarks to justify carotid surgery. To determine whether carotid surgery for patients requiring dialysis is appropriate, the present study compared the perioperative outcomes after carotid revascularization for dialysis-dependent patients relative to nondialysis patients in a contemporary, national cohort. Read More

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False-Negative Rates of Breast Cancer Screening with and without Digital Breast Tomosynthesis.

Radiology 2021 02 1;298(2):296-305. Epub 2020 Dec 1.

From the Department of Diagnostic Radiology, Yale University School of Medicine, 333 Cedar St, New Haven, CT 06510 (M.A.D.); Advocate Lutheran General Hospital, Park Ridge, Ill (S.M.F., F.M.D.); Department of Radiology, University Hospitals of Cleveland Medical Center, Cleveland, Ohio (D.M.P.); Albert Einstein Healthcare Network, Philadelphia, Pa (D.S.C.); Invision Sally Jobe Breast Centers and Radiology Imaging Associates, Denver, Colo (L.D.B.); TOPS Comprehensive Breast Center, Houston, Tex (S.L.R.); Solis Women's Health, Dallas, Tex (S.L.R.); Radiology Associates of Hollywood and Memorial Healthcare System, Hollywood, Fla (M.K.H.); John C. Lincoln Breast Health and Research Center, Phoenix, Ariz (L.N.G.); and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa (E.F.C.).

Background Screening with digital breast tomosynthesis (DBT) improves breast cancer detection and recall rates compared with those obtained with digital mammography (DM); however, the impact of DBT on patient survival has not been established. False-negative (FN) screening examinations can be a surrogate for long-term outcomes, such as breast cancer morbidity and mortality. Purpose To determine if screening with DBT is associated with lower FN rates, detection of cancers with more favorable prognoses, and improved performance outcomes versus DM. Read More

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February 2021

Maternal clinical characteristics and perinatal outcomes among pregnant women with coronavirus disease 2019. A systematic review.

Travel Med Infect Dis 2021 Jan-Feb;39:101919. Epub 2020 Nov 19.

Maternal & Fetal Medicine Unit, Department of Obstetrics and Perinatology, Instituto Nacional Materno Perinatal, Lima, Peru; Fetal Medicine Unit, Clínica Angloamericana, British Medical Hospital, Lima, Peru. Electronic address:

Objective: To describe the maternal clinical characteristics, maternal and perinatal outcomes in COVID-19-positive pregnant women.

Methods: Articles in all languages on the SARS-CoV-2 infection in pregnant women were sought from MEDLINE, EMBASE, Cochrane Library and LILACS; China National Knowledge Infrastructure Database (CNKI), Chinese Science and Technology Periodical Database (VIP) and Wan Fang Data between December 1, 2019 and April 27, 2020. Bulletins and national reports were also searched. Read More

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Understanding Host-Pathogen-Vector Interactions with Chronic Asymptomatic Malaria Infections.

Trends Parasitol 2021 03 27;37(3):195-204. Epub 2020 Oct 27.

LPHI, MIVEGEC, CNRS, INSERM, University of Montpellier, France. Electronic address:

The last malaria parasite standing will display effective adaptations to selective forces. While substantial progress has been made in reducing malaria mortality, eradication will require elimination of all Plasmodium parasites, including those in asymptomatic infections. These typically chronic, low-density infections are difficult to detect, yet can persist for months. Read More

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Sentinel node occult lesion localization technique for impalpable breast cancer.

ANZ J Surg 2020 12 30;90(12):2510-2515. Epub 2020 Oct 30.

Northern Clinical School, The University of Sydney, Sydney, New South Wales, Australia.

Background: Mammographic screening has enabled earlier detection of breast cancer, with 25-35% of malignancies being non-palpable at diagnosis. Accurate removal and sentinel node biopsy for staging these lesions are crucial to successful management. Both these aspects are achieved by peritumoural localization with radioisotope and lymphoscintigraphy for sentinel lymph node (SN) mapping using the sentinel node and occult lesion localization (SNOLL) technique. Read More

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December 2020

Estimating COVID-19 prevalence and infection control practices among US dentists.

J Am Dent Assoc 2020 11;151(11):815-824

Background: Understanding the risks associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission during oral health care delivery and assessing mitigation strategies for dental offices are critical to improving patient safety and access to oral health care.

Methods: The authors invited licensed US dentists practicing primarily in private practice or public health to participate in a web-based survey in June 2020. Dentists from every US state (n = 2,195) answered questions about COVID-19-associated symptoms, SARS-CoV-2 infection, mental and physical health conditions, and infection control procedures used in their primary dental practices. Read More

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November 2020

Commonalities Between COVID-19 and Radiation Injury.

Radiat Res 2021 01;195(1):1-24

Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland.

As the multi-systemic components of COVID-19 emerge, parallel etiologies can be drawn between SARS-CoV-2 infection and radiation injuries. While some SARS-CoV-2-infected individuals present as asymptomatic, others exhibit mild symptoms that may include fever, cough, chills, and unusual symptoms like loss of taste and smell and reddening in the extremities (e.g. Read More

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January 2021

Bellini duct carcinoma revealed by cutaneous metastasis: A case report.

Int J Surg Case Rep 2020 28;76:195-198. Epub 2020 Sep 28.

Department of Urology, Charles Nicolle Hospital, Tunis, Tunisia.

Introduction: Cutaneous metastasis of renal cell carcinoma is rare and the majority of these metastases are asynchronous. The scalp and face are the major sites of metastases, followed by the chest and abdomen. However, the entire body surface can be affected. Read More

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September 2020