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Mwangi LW, Omuse G, Adam R, Ong’ete G, Matheka C, Mugaine P, Sayed S, Maina D. Post-vaccination SARS-CoV-2 IgG spike antibody responses among clinical and non-clinical healthcare workers at a tertiary facility in Kenya. PLoS One 2024; 19:e0299302. [PMID: 38573911 PMCID: PMC10994319 DOI: 10.1371/journal.pone.0299302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/07/2024] [Indexed: 04/06/2024] Open
Abstract
INTRODUCTION Following the coronavirus disease 19 (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection, vaccination became the main strategy against disease severity and even death. Healthcare workers were considered high-risk for infection and, thus, were prioritised for vaccination. METHODS A follow-up to a SARS-CoV-2 seroprevalence study among clinical and non-clinical HCWs at the Aga Khan University Hospital, Nairobi, we assessed how vaccination influenced SARS-CoV-2 anti-spike IgG antibody responses and kinetics. Blood samples were drawn at two points spanning 6 to 18 months post-vaccination, and SARS-CoV-2 spike antibody levels were determined by enzyme-linked immunosorbent assay. RESULTS Almost all participants, 98% (961/981), received a second vaccine dose, and only 8.5% (83/981) received a third dose. SARS-CoV-2 spike IgG antibodies were detected in 100% (961/961) and 92.7% (707/762) of participants who received two vaccine doses, with the first and second post-vaccine test, respectively, and in 100% (83/83) and 91.4% (64/70) of those who received three vaccine doses at the first and second post-vaccine test, respectively. Seventy-six participants developed mild infections, not requiring hospitalisation even after receiving primary vaccination. Receiving three vaccine doses influenced the anti-spike S/Co at both the first (p<0.001) and second post-vaccination testing (p<0.001). Of those who tested SARS-CoV-2 positive, the anti-spike S/Co ratio was significantly higher than those who were seronegative at the first post-vaccine test (p = 0.001). Side effects were reported by almost half of those who received the first dose, 47.3% (464/981), 28.9% (278/961) and 25.3% (21/83) of those who received the second and third vaccine doses, respectively. DISCUSSION AND CONCLUSION Following the second dose of primary vaccination, all participants had detectable anti-spike antibodies. The observed mild breakthrough infections may have been due to emerging SARS-CoV-2 variants. Findings suggest that although protective antibodies are induced, vaccination protected against COVID-19 disease severity and not necessarily infection.
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Affiliation(s)
- Lucy W. Mwangi
- Research Division, Medical College East Africa, The Aga Khan University Hospital, Nairobi, Kenya
| | - Geoffrey Omuse
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
| | - Rodney Adam
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
- Department of Internal Medicine, The Aga Khan University Hospital, Nairobi, Kenya
| | - George Ong’ete
- Occupational Safety and Health, The Aga Khan University Hospital, Nairobi, Kenya
| | - Cyrus Matheka
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
| | - Patrick Mugaine
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
| | - Shahin Sayed
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
| | - Daniel Maina
- Department of Pathology and Laboratory Medicine, The Aga Khan University Hospital, Nairobi, Kenya
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Chatzistergiou V, Bennedjai A, Morin A, Adam R, Nordmann JP. Ptosis secondary to orbital metastasis undetected by magnetic resonance imaging: A case report. J Fr Ophtalmol 2024; 47:104108. [PMID: 38437775 DOI: 10.1016/j.jfo.2024.104108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 03/06/2024]
Abstract
We report a patient with isolated ptosis secondary to orbital metastasis but no evidence of a neoplastic process on magnetic resonance imaging (MRI). A 69-year-old male was referred to our hospital with ptosis of the right upper eyelid and secondary frontalis muscle overaction on the left side for six months. The palpebral fissure was 3mm on the right and 16mm on the left, and levator function was 6mm and 19mm respectively. Three years previously, he had undergone surgical resection of the left lower lobe of the lung due to a T1 N0 M0 adenocarcinoma, and no recurrence had since been observed. An MRI was performed to rule out ptosis secondary to metastasis. Thyroid dysfunction and myasthenia were also ruled out. The ptosis was attributed to an isolated microvascular third nerve palsy. A standard external levator advancement was performed. Six months after the surgery, the patient presented with intense pain, minimal ptosis, edema and diplopia. A new MRI revealed an orbital metastasis measuring 2.4×1.0×1.6cm in the superior orbit, exerting mass effect on the superior rectus and the levator palpebrae superioris muscle. A positron emission tomography scan revealed a recurrence of the lung cancer with multiple bony metastases. The patient underwent chemotherapy consisting of the taxol-carboplatin protocol. Our report highlights the importance of a high index of suspicion of a neoplastic etiology in patients with mild symptoms and a history of cancer even if imaging does not initially reveal a mass or infiltration.
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Affiliation(s)
- V Chatzistergiou
- Centre hospitalier national d'ophtalmologie des Quinze-Vingts, Paris, France
| | - A Bennedjai
- Centre hospitalier national d'ophtalmologie des Quinze-Vingts, Paris, France
| | - A Morin
- Hôpital Paris Saint-Joseph, Paris, France
| | - R Adam
- Centre hospitalier national d'ophtalmologie des Quinze-Vingts, Paris, France
| | - J-P Nordmann
- Centre hospitalier national d'ophtalmologie des Quinze-Vingts, Paris, France
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3
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Ettayeb R, Couanon M, David C, Touze R, Bourges JL, Tuil E, Adam R, Nordmann JP, Bennedjai A. Epidemiological features of ophthalmic emergencies during the COVID-19 lockdown: Impact of the health crisis in a tertiary care center. J Fr Ophtalmol 2023; 46:712-719. [PMID: 37429806 DOI: 10.1016/j.jfo.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 05/25/2023] [Indexed: 07/12/2023]
Abstract
PURPOSE The goal of this study is to examine changing patterns of ophthalmic visits in an emergency eye care unit of a tertiary referral center in Paris, France, during the Coronavirus disease-19 (COVID-19) pandemic compared to a control period. MATERIALS AND METHODS This was a single-center, retrospective, observational, epidemiological study. We included all visits in the emergency eye care unit of the Quinze-Vingts National Ophthalmology Center, Paris, France, from March 17, 2020 to April 30, 2020, and a corresponding time period in 2016. We analyzed patients' demographic factors, chief complaints, referral patterns, examination findings, treatment provided, hospitalizations and surgical interventions. RESULTS During the 6weeks of lockdown, 3547 emergency visits were recorded. The control group contained 2108 patients from June 6-19, 2016. There was a decrease of approximately 50% in the number of average daily visitations. The frequency of serious diagnoses (including severe eye inflammation, serious infections, retinal vascular pathologies, surgical emergencies, and neuro-ophthalmology), increased overall during the period (P=0.03). The proportion of low severity pathologies decreased (P<0.001) between the two periods. In addition, an increased amount of ancillary testing was performed (P<0.001). Finally, the rate of hospitalizations was significantly lower during the lockdown period (P<0.001). CONCLUSION A significant reduction in total ophthalmic presentations in the emergency eye care unit was observed during the lockdown period. However, the proportion of emergencies requiring specialized treatments (surgical, infectious, inflammatory and neuro-ophthalmological pathologies) increased.
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Affiliation(s)
- R Ettayeb
- Service 2, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France.
| | - M Couanon
- Service 2, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - C David
- Service 5, centre hospitalier national des Quinze-Vingts, 75012 Paris, France
| | - R Touze
- Hôpital Necker, 149, rue de Sèvres, 75015 Paris, France
| | | | - E Tuil
- Service des urgences, centre hospitalier national des Quinze-Vingts, 75012 Paris, France
| | - R Adam
- Service 2, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - J-P Nordmann
- Service 2, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - A Bennedjai
- Service 2, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
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Ward S, Van der Meer J, Thistlethwaite S, Greenwood A, Appadurai K, Kanagarajah S, Watson G, Adam R, Campbell M, Eeles E, Breakspear M. 1336 TOWARDS AN UNDERSTANDING OF THE BIOLOGICAL MECHANISMS OF DELIRIUM USING FUNCTIONAL MRI: PILOT STUDY. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Abstract
Introduction
Delirium is a common condition in older hospitalised patients causing high morbidity and mortality. The neurobiological basis for delirium is uncertain and, for numerous reasons, research in this area has been limited. Several recent studies have demonstrated that functional neuroimaging in delirium is achievable and has suggested that a brain region termed the default mode network (DMN), may play a cardinal role in delirium pathogenesis. We set out to develop a pilot study to demonstrate that it is feasible to undertake functional magnetic resonance imaging (fMRI) scans in older patients with acute delirium.
Methods
Observational pilot study obtaining a fMRI scan of inpatients in an Australian, tertiary hospital, geriatric ward. Eligible patients diagnosed as delirious by a geriatrician were compared against non-delirious controls. Informed consent was obtained. A novel scanning paradigm was developed. Sequences assed brain structure and functional networks in resting state and during a simple task of sustained attention and response inhibition.
Results
11 participants have been scanned. 6 participants were delirious: mean age 81 years (range 77 – 85 years), 3 female. 5 participants were non-delirious: mean age 83.4years (range 79 -90 years), 2 female. 10 of the 11 participants completed the full imaging protocol, including task engagement. Head movement during scanning, was generally within acceptable limits. Data demonstrates considerable cortical atrophy and ventricular enlargement consistent with age. Preliminary fMRI analyses show a variable pattern of cortical recruitment during task engagement in delirious patients.
Conclusions
These findings show it is ethically and logistically feasible to engage elderly patients with acute delirium into a high end structural and functional imaging study.
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Affiliation(s)
| | - J Van der Meer
- QIMR Berghofer Medical Research Institute
- University of Newcastl
| | - S Thistlethwaite
- Royal Brisbane and Women’s Hospital
- Surgical Treatment and Rehabilitation Service (STARS)
| | | | - K Appadurai
- Royal Brisbane and Women’s Hospital
- Surgical Treatment and Rehabilitation Service (STARS)
| | - S Kanagarajah
- Royal Brisbane and Women’s Hospital
- Surgical Treatment and Rehabilitation Service (STARS)
| | - G Watson
- Royal Brisbane and Women’s Hospital
| | - R Adam
- Royal Brisbane and Women’s Hospital
| | | | | | - M Breakspear
- QIMR Berghofer Medical Research Institute
- University of Newcastl
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Cervantes A, Adam R, Roselló S, Arnold D, Normanno N, Taïeb J, Seligmann J, De Baere T, Osterlund P, Yoshino T, Martinelli E. Metastatic colorectal cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-up. Ann Oncol 2023; 34:10-32. [PMID: 36307056 DOI: 10.1016/j.annonc.2022.10.003] [Citation(s) in RCA: 284] [Impact Index Per Article: 284.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 02/08/2023] Open
Affiliation(s)
- A Cervantes
- Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - R Adam
- AP-HP Hôpital Paul Brousse, Université Paris-Saclay, ER "Chronothérapie, Cancers, Transplantation", Villejuif, France
| | - S Roselló
- Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, Valencia, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - D Arnold
- Department of Oncology and Hematology, Asklepios Tumourzentrum Hamburg, AK Altona, Hamburg, Germany
| | - N Normanno
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumouri, 'Fondazione G. Pascale'-IRCCS, Naples, Italy
| | - J Taïeb
- Department of Gastroenterology and GI Oncology, Georges Pompidou European Hospital, Assitance Publique-Hôpitaux de Paris AP-HP Paris Centre, Paris, France; Paris Cancer Institute SIRIC CARPEM, Centre de Recherche des Cordeliers, Université Paris-Cité, Paris, France
| | - J Seligmann
- Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - T De Baere
- Department of Interventional Radiology, Gustave Roussy, Villejuif, France; University of Paris-Saclay, UFR Médecine Le Kremlin-Bicêtre, Le Kremlin-Bicêtre, France; Centre d'Investigation Clinique BIOTHERIS, INSERM CIC1428, Villejuif, France
| | - P Osterlund
- Tampere University Hospitals and University, Tampere, Finland; Tema Cancer/GI-oncology, Karolinska Comprehensive Cancer Centre, Karolinska Institute, Solna, Sweden
| | - T Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - E Martinelli
- Department of Precision Medicine, Oncology Unit, Università della Campania "L. Vanvitelli", Naples, Italy
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Neculae G, Adam R, Jercan A, Badelita S, Draghici M, Stan C, Rosca M, Beladan C, Coriu D, Popescu BA, Jurcut R. Cardiac amyloidosis is not a single disease: a multiparametric comparison between the light chain and transthyretin forms. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Systemic amyloidoses represent a heterogeneous group of diseases resulting from the deposition of misfolded proteins as amyloid fibrils into the extracellular matrix of different organs. Based on this precursor protein, cardiac amyloidosis (CA) can be most frequently classified as: light chain (AL) and transthyretin (ATTR) amyloidosis, with different management and prognosis.
Purpose
The purpose of this study is to establish a differential diagnosis algorithm targeted towards these two most frequent subtypes of CA. Although confirmation through invasive or non-invasive diagnostic algorithms is still mandatory for a final diagnosis, a series of clinical, paraclinical and imaging differences could possibly guide the choice for more complex diagnostic steps.
Methods
We prospectively included all consecutive patients with ATTR and AL evaluated between 2018 and 2022 in our center. All patients had a complete clinical, paraclinical and imaging evaluation including myocardial deformation study, and confirmation of the final diagnosis, according to the current international recommendations.
Results
The study population included 81 patients divided into 2 groups: ATTR (group 1, n=32: 30 variant and 2 wild type) and AL (group 2, n=49).
ATTR patients were younger (50.7±13.9 vs. 60.2±7.3 years, p=0.0001), had predominantly more neurological symptoms, milder cardiac symptoms and lower values of cardiac biomarkers than AL: NT-proBNP (3095±4433 vs. 10382±9008 ng/ml, p=0.001) and high sensitive troponin I (0.0129±0.01 vs 0.177±0.2 ng/ml, p=0.0002), with better renal function (mean GFR 84.74±26.9 vs. 64.5±29.45 mL/min, p=0.003). We found no significant differences in terms of ECG changes.
Moreover, at similar left ventricular (LV) wall thickness and ejection fraction, ATTR group had less pericardial effusions (53.6 vs. 86.8%, p=0.0027), better LV global longitudinal strain (−12.0±3.7 vs. −9.7±4.6%, p=0.03), RV strain (RVFW strain −19.7±6.2 vs. −14.5±11.0%, p=0.03) and also better reservoir and contractile function of the LA (LASr 17.2±12.3 vs. 11.2±7.4%, p=0.02).
Based on this multiparametric comparison we proposed a prediction algorithm to differentiate between the 2 forms of CA. A score of equal or more than 4 from a maximum of 9 points, has been able to differentiate between AL and ATTR with a sensitivity and specificity of 78 and 80%, respectively; AUC= 0.82.
Conclusions
CA is a complex entity and requires extensive testing through serum biomarkers, imaging, and invasive confirmation of amyloid infiltration in some cases. This study highlighted a series of non-invasive checkpoints, which can be useful in guiding the decision making process towards a more accurate and rapid differential diagnosis, in cases where a final diagnosis is crucial to be immediately established.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- G Neculae
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
| | - R Adam
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
| | - A Jercan
- Fundeni Clinical Institute, Hematology Department , Bucharest , Romania
| | - S Badelita
- Fundeni Clinical Institute, Hematology Department , Bucharest , Romania
| | - M Draghici
- Fundeni Clinical Institute, Neurology Department , Bucharest , Romania
| | - C Stan
- Fundeni Clinical Institute, Department of Nuclear Medicine , Bucharest , Romania
| | - M Rosca
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
| | - C Beladan
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
| | - D Coriu
- Fundeni Clinical Institute, Hematology Department , Bucharest , Romania
| | - B A Popescu
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
| | - R Jurcut
- Emergency Institute of Cardiovascular Diseases Prof. Dr. C.C. Iliescu , Bucharest , Romania
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Mursa A, Militaru S, Neculae G, Adam R, Radoi V, Rusu E, Popescu BA, Jurcut R. Finding the gaps in managing Fabry disease in women: the Romanian experience. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Fabry disease (FD) is an X-linked rare lysosomal storage disease caused by mutations in the GLA gene which lead to decrease in α Gal A enzyme activity and tissue accumulation of lysosomal globotriaosylceramide (Gb3) and globotriaosylsphingosine (lyso-Gb3). Due to X linked transmission, males are hemizygous, and females are heterozygous and were initially thought to be unaffected. However, women with FD can vary from asymptomatic, mildly symptomatic, to severely symptomatic as males. The aim of this study is to evaluate the particularities of FD presentation, cardiac imaging and management in females from the full Romanian FD cohort as compared to male patients.
Methods
This study included all consecutive patients diagnosed in or referred to our center with FD between 2014–2021. All patients had a complete clinical, biological and cardiac imaging workup.
Results
During the inclusion interval, data from 66 consecutive Romanian FD patients (37 women and 29 men) from 29 unrelated families were collected. Diagnosing mode in FD women differs compared to men (p<0.001): most women were diagnosed through family screening or by a cardiologist, while most men were diagnosed by nephrologists. Women had higher levels of α Gal A levels (1.3±0.8 μmol/L/h vs 0.5±0.7 μmol/L/h, normal cutoff >1.2) (p<0.001) and smaller levels of lyso-GB3 (5.8±2.6 ng/ml vs 110±35.6 ng/ml, normal cutoff<3.8) (p<0.001). More women are asymptomatic carriers than men (27% vs 3.4%), but when symptoms were present, they could be as severe as in men. Enrolled women were older (50.9±16.3 vs 41±14.9 years, p=0.014), diagnosed later (46.8±16.8 vs 32.7±14.3 years, p<0.001) and had later symptom onset of the disease compared with men (38.1±14.4 vs 20.3±14.9 years, p<0.001). Women had less angiokeratomas (p=0.001) and hypohydrosis (p=0.04), with no difference in cornea verticillata or ENT involvement. Both women and men developed cardiac symptoms starting from the fifth decade, with no differences in terms of angina, NYHA class, syncope between sexes. Women tend to have a lower prevalence of LVH compared to men (p=0.052), with no differences regarding ejection fraction or global longitudinal strain between genders. Regarding other organs involved, women were equally affected as men from acroparesthesia and stroke, with similar age at first cerebrovascular event. Women had milder kidney involvement (stages 1 and 2) when compared to men (56.8% vs 37.9%, p=0.004). Regardless of these findings, it appeared that women were less treated with pathogenic therapy comparing to men (48.6% vs 82.7%) (p=0.004).
Conclusions
Women with FD are not merely genetic carriers as they can be as affected as men. However, they benefit later from diagnosis and less of pathogenic therapy. Further studies with more female participations are needed to better understand the Fabry burden and needs in women.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Mursa
- Emergency Clinical Hospital Prof. Dr. Agrippa Ionescu , Bucharest , Romania
| | - S Militaru
- University of Medicine and Pharmacy of Craiova , Craiova , Romania
| | - G Neculae
- Institute of Cardiovascular Diseases Prof. C.C. Iliescu , Bucharest , Romania
| | - R Adam
- Institute of Cardiovascular Diseases Prof. C.C. Iliescu , Bucharest , Romania
| | - V Radoi
- University of Medicine and Pharmacy Carol Davila , Bucharest , Romania
| | - E Rusu
- Fundeni Clinical Institute , Bucharest , Romania
| | - B A Popescu
- Institute of Cardiovascular Diseases Prof. C.C. Iliescu , Bucharest , Romania
| | - R Jurcut
- Institute of Cardiovascular Diseases Prof. C.C. Iliescu , Bucharest , Romania
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Bennedjai A, Hennocq Q, Simon F, Testelin S, Devauchelle B, Tulasne JF, Bouheraoua N, Adam R, Nordmann JP, Khonsari RH. Orbital in juries in wartime: Historical study from Paul Tessier's work in Iran. J Fr Ophtalmol 2022; 45:628-632. [PMID: 35597681 DOI: 10.1016/j.jfo.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/17/2022] [Accepted: 02/01/2022] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Paul Tessier was a leading French oculoplastic surgeon who took part in several surgical missions in Iran to manage victims of the Iraq-Iran conflict in the late 1980's and early 1990's. METHODS We collected the records of 322 patients who underwent surgical procedures for the management of wartime injuries by Paul Tessier's team in Iran from 1990 to 1993. We also report one of the most representative cases of orbital reconstruction performed by Tessier. RESULTS Mean age at the time of trauma was 20.65±7.04 years (range: 2--62). Craniofacial CT-scans were available for 54 patients. The bones of the upper third of the face and the orbital contents were affected in 124/322 patients (38.50%). Soft-tissue lesions of the upper third included 13 frontal lacerations (4.04%), 60 orbital injuries (18.63%) and 95 uni- or bilateral enucleations (29.50%). Thirty-nine uni- or bilateral lid injuries (12.11%) and 8 tear duct injuries (2.48%) were reported. A specific case of orbital reconstruction using antero-internal and posterior iliac bone grafts was reported as a representative example of Tessier's techniques. CONCLUSION This study highlights the challenges of orbital reconstruction in wartime injuries and provides insights on the work of one of the most renowned surgeons in this field.
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Affiliation(s)
- A Bennedjai
- Centre Hospitalier National d'Ophtalmologie des 15-20, Service 2, Université de Paris, Paris, France.
| | - Q Hennocq
- Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service de chirurgie maxillo-faciale et chirurgie plastique, Université de Paris, Paris, France
| | - F Simon
- Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service de chirurgie oto-rhino-laryngologie, Université de Paris, Paris, France
| | - S Testelin
- CHU Amiens Picardie-Service de chirurgie maxillo-faciale, Université de Picardie Jules Vernes, Amiens, France
| | - B Devauchelle
- CHU Amiens Picardie-Service de chirurgie maxillo-faciale, Université de Picardie Jules Vernes, Amiens, France
| | | | - N Bouheraoua
- Centre Hospitalier National d'Ophtalmologie des 15-20, Service 5, Sorbonne Université, Paris, France
| | - R Adam
- Centre Hospitalier National d'Ophtalmologie des 15-20, Service 2, Université de Paris, Paris, France
| | - J-P Nordmann
- Centre Hospitalier National d'Ophtalmologie des 15-20, Service 2, Université de Paris, Paris, France
| | - R H Khonsari
- Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service de chirurgie maxillo-faciale et chirurgie plastique, Université de Paris, Paris, France
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Ajeddig H, Adam R, Ade P, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby A, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R, Shimajiri Y. Probing the role of magnetic fields in star-forming filaments: NIKA2-Pol commissioning results toward OMC-1. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Dust polarization observations are a powerful, practical tool to probe the geometry (and to some extent, the strength) of magnetic fields in starforming regions. In particular, Planck polarization data have revealed the importance of magnetic fields on large scales in molecular clouds. However, due to insufficient resolution, Planck observations are unable to constrain the B-field geometry on prestellar and protostellar scales. The high angular resolution of 11.7 arcsec provided by NIKA2-Pol 1.15 mm polarimetric imaging, corresponding to 0.02 pc at the distance of the Orion molecular cloud (OMC), makes it possible to advance our understanding of the B-field morphology in star-forming filaments and dense cores (IRAM 30m large program B-FUN). The commissioning of the NIKA2-Pol instrument has led to several challenging issues, in particular, the instrumental polarization or intensity-to-polarization “leakage” effect. In the present paper, we illustrate how this effect can be corrected for, leading to reliable exploitable data in a structured, extended source such as OMC-1. We present a statistical comparison between NIKA2-Pol and SCUBA2-Pol2 results in the OMC-1 region. We also present tentative evidence of local pinching of the B-field lines near Orion-KL, in the form of a new small-scale hourglass pattern, in addition to the larger-scale hourglass already seen by other instruments such as Pol2.
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Muñoz-Echeverría M, Adam R, Ade P, Ajeddig H, André P, Arnaud M, Artis E, Aussel H, Bartalucci I, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Ferragamo A, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Paliwal A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt GW, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Yepes G. Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a multi-probe analysis of the well-known galaxy cluster CL J1226.9+3332 as a proof of concept for multi-wavelength studies within the framework of the NIKA2 Sunyaev-Zel’dovich Large Program (LPSZ). CL J1226.9+3332 is a massive and high redshift (z = 0.888) cluster that has already been observed at several wavelengths. A joint analysis of the thermal SZ (tSZ) effect at millimeter wavelength with the NIKA2 camera and in X-ray with the XMM-Newton satellite permits the reconstruction of the cluster’s thermodynamical properties and mass assuming hydrostatic equilibrium. We test the robustness of our mass estimates against different definitions of the data analysis transfer function. Using convergence maps reconstructed from the data of the CLASH program we obtain estimates of the lensing mass, which we compare to the estimated hydrostatic mass. This allows us to measure the hydrostatic-to-lensing mass bias and the associated systematic effects related to the NIKA2 measurement. We obtain M500HSE = (7:65 ± 1:03) × 1014M⊙ and M500lens = (7:35 ± 0:65) × 1014M⊙, which implies a HSE-to-lensing bias consistent with 0 within 20%.
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Katsioli S, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Looze I, De Petris M, Désert FX, Doyle S, Driessen EC, Ejlali G, Galametz M, Galliano F, Gomez A, Goupy J, Jones A, Hughes A, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Madden S, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Nersesian A, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby A, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Smith MWL, Tabatabaei F, Tucker C, Xilouris EM, Zylka R. Exploring the millimetre emission in nearby galaxies: Analysis of the edge-on galaxy NGC 891. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
New observations of the edge-on galaxy NGC 891, at 1.15 and 2mm obtained with the IRAM 30-m telescope and the NIKA2 camera, within the framework of the IMEGIN (Interpreting the Millimetre Emission of Galaxies with IRAM and NIKA2) Large Program, are presented in this work. By using multiwavelength maps (from the mid-IR to the cm wavelengths) we perform SED fitting in order to extract the physical properties of the galaxy on both global and local (~kpc) scales. For the interpretation of the observations we make use of a state-of-the-art SED fitting code, HerBIE (HiERarchical Bayesian Inference for dust Emission). The observations indicate a galaxy morphology, at mm wavelengths, similar to that of the cold dust emission traced by submm observations and to that of the molecular gas. The contribution of the radio emission at the NIKA2 bands is very small (negligible at 1.15 mm and ~ 10% at 2 mm) while it dominates the total energy budget at longer wavelengths (beyond 5 mm). On local scales, the distribution of the free-free emission resembles that of the dust thermal emission while the distribution of the synchrotron emission shows a deficiency along the major axis of the disc of the galaxy.
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Perotto L, Adam R, Ade P, Ajeddig H, André P, Arnaud M, Artis E, Aussel H, Bartalucci I, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Ferragamo A, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Paliwal A, Pisano G, Pointecouteau E, Ponthieu N, Pratt G, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Yepes G. The NIKA2 Sunyaev-Zeldovich Large Program: Precise galaxy cluster physics for an accurate cluster-based cosmology. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The NIKA2 Guaranteed-Time SZ Large Program (LPSZ) is dedicated to the high-angular resolution SZ mapping of a representative sample of 45 SZ-selected galaxy clusters drawn from the catalogues of the Planck satellite, or of the Atacama Cosmology Telescope. The LPSZ sample spans a mass range from 3 to 11 × 1014M⊙ and a redshift range from 0:5 to 0:9, extending to higher redshift and lower mass the previous samples dedicated to the cluster mass calibration and universal properties estimation. The main goals of the LPSZ are the measurement of the average radial profile of the ICM pressure up to R500 by combining NIKA2 with Planck or ACT data, and the estimation of the scaling law between the SZ observable and the mass using NIKA2, XMM-Newton and Planck/ACT data. Furthermore, combining LPSZ data with existing or forthcoming public data in lensing, optical/NIR or radio domains, we will build a consistent picture of the cluster physics and further gain knowledge on the mass estimate as a function of the cluster morphology and dynamical state.
We give an overview of the LPSZ, present recent results and discuss the future implication for cosmology with galaxy clusters.
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Bing L, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Béthermin M, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Neri R, Omont A, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby A, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. Searching for high-z DSFGs with NIKA2 and NOEMA. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
As the possible progenitors of passive galaxies at z=2-3, dusty starforming galaxies (DSFGs) at z>4 provide a unique perspective to study the formation, assembly, and early quenching of massive galaxies in the early Universe. The extreme obscuration in optical-IR makes (sub)mm spectral scans the most universal and unbiased way to confirm/exclude the high-z nature of candidate dusty star-forming galaxies. We present here the status of the NIKA2 Cosmological Legacy Survey (N2CLS), which is the deepest wide-area singledish survey in the millimeter searching for high-z DSFGs. We also introduce a joint-analysis method to effciently search for the spectroscopic redshift of high-z DSFGs with noisy spectra and photometric data and present its success in identifying the redshift of DSFGs found in NIKA2 science verification data.
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Peretto N, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Bacmann A, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby A, Ristorcelli I, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. Galactic star formation with NIKA2 (GASTON): Filament convergence and its link to star formation. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars. In some star-forming molecular clouds converging networks of filaments, also known as hub filament systems, can be found. These hubs are believed to be preferentially associated to massive star formation. As of today, there are no metrics that allow the systematic quantification of a filament network convergence. Here, we used the IRAM 30m NIKA2 observations of the Galactic plane from the GASTON large programme to systematically identify filaments and produce a filament convergence parameter map. We use such a map to show that: i. hub filaments represent a small fraction of the global filament population; ii. hubs host, in proportion, more massive and more luminous compact sources that non-hubs; iii. hub-hosting clumps are more evolved that non-hubs; iv. no discontinuities are observed in the properties of compact sources as a function of convergence parameter. We propose that the rapid global collapse of clumps is responsible for (re)organising filament networks into hubs and, in parallel, enhancing the mass growth of compact sources.
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15
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Artis E, Adam R, Ade P, Ajeddig H, André P, Arnaud M, Aussel H, Bartalucci I, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Ferragamo A, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Paliwal A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt GW, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Yepes G. PSZ2 G091: A massive double cluster at z ~ 0.822 observed by the NIKA2 camera. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
PSZ2 G091.83+26.11 is a massive galaxy cluster with M500 = 7:43 × 1014M⊙ at z = 0:822. This object exhibits a complex morphology with a clear bimodality observed in X-rays. However, it was detected and analysed in the Planck sample as a single, spherical cluster following a universal profile [1]. This model can lead to miscalculations of thermodynamical quantities, like the pressure profile. As future multiwavelength cluster experiments will detect more and more objects at higher redshifts (where we expect the fraction of merging objects to be higher), it is crucial to quantify this systematic effect. In this work, we use high-resolution observations of PSZ2 G091.83+26.11 by the NIKA2 camera to integrate the morphological characteristics of the cluster in our modelling. This is achieved by fitting a two-halo model to the SZ image and then by reconstruction of the resulting projected pressure profile. We then compare these results with the spherical assumption.
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Rigby A, Adam R, Ade P, Ajeddig H, Anderson M, André P, Artis E, Aussel H, Bacmann A, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Bracco A, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, García P, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Peretto N, Perotto L, Pisano G, Ponthieu N, Revéret V, Ristorcelli I, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Watkins E, Zylka R. Galactic Star Formation with NIKA2 (GASTON): Evidence of mass accretion onto dense clumps. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
High-mass stars (m* ≳ 8 M⊙) play a crucial role in the evolution of galaxies, and so it is imperative that we understand how they are formed. We have used the New IRAM KIDs Array 2 (NIKA2) camera on the Institut de Radio Astronomie Millimétrique (IRAM) 30-m telescope to conduct high-sensitivity continuum mapping of ~ 2 deg2 of the Galactic plane (GP) as part of the Galactic Star Formation with NIKA2 (GASTON) large program. We have identified a total of 1467 clumps within our deep 1.15 mm continuum maps and, by using overlapping continuum, molecular line, and maser parallax data, we have determined their distances and physical properties. By placing them upon an approximate evolutionary sequence based upon 8 μm Spitzer imaging, we find evidence that the most massive dense clumps accrete material from their surrounding environment during their early evolution, before dispersing as star formation advances, supporting clump-fed models of high-mass star formation.
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Lestrade JF, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, Coulais A, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. Overdensity of SubMillimiter Galaxies in the GJ526 Field mapped with the NIKA2 Camera. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using the NIKA2 dual band millimeter camera installed on the IRAM30m telescope, we have mapped a relatively large field (~ 70 arcmin2) in the direction of the star GJ526 to investigate the nature of the sources found with the MAMBO camera at 1.2 mm ten years earlier. We have found that they must be dust-obscured galaxies (SMGs) in the background beyond the star. The new NIKA2 map at 1.15 mm reveals additional sources and, in fact, an overdensity of SMGs predominantly distributed along a filament-like structure in projection on the sky across the whole observed field. We speculate this might be a cosmic filament at high redshift as revealed in cosmological hydrodynamical simulations. Measurement of spectroscopic redshifts of the SMGs in the candidate filament is required now for a definitive confirmation of the nature of the structure.
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Ritacco A, Adam R, Ade P, Ajeddig H, André P, Artis E, Aumont J, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby AJ, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. Crab nebula at 260 GHz with the NIKA2 polarimeter: Implications for the polarization angle calibration of future CMB experiments. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The quest for primordial gravitational waves enclosed in the Cosmic Microwave Background (CMB) polarization B-modes signal motivates the development of a new generation of high sensitive experiments (e.g. CMBS4, LiteBIRD), thus allowing to probe the inflationary epoch in the early Universe. However, this will be only possible by ensuring a high control of the instrumental systematic effects and an accurate absolute calibration of the polarization angle.
The Crab nebula is known to be a polarization calibrator on the sky for CMB experiments. Already used for the Planck satellite it exhibits a high polarized signal at microwave wavelengths. In this work we present Crab polarization observations obtained, in the 260 GHz frequency band, with the NIKA2 instrument. Furthermore, we discuss the accuracy needed on such a measurement to improve the constraints on the absolute angle calibration for CMB experiments.
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Muñoz-Echeverría M, Adam R, Ade P, Ajeddig H, André P, Arnaud M, Artis E, Aussel H, Bartalucci I, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, De Petris M, Désert FX, Doyle S, Driessen EFC, Ferragamo A, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, Monfardini A, Paliwal A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt GW, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Yepes G. The LPSZ-CLASH galaxy cluster sample: Combining lensing and hydrostatic mass estimates. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Starting from the clusters included in the NIKA sample and in the NIKA2 Sunyaev-Zel’dovich Large Program (LPSZ) we have selected a sample of six common objects with the Cluster Lensing And Supernova survey with Hubble (CLASH) lensing data. For the LPSZ clusters we have at our disposal both high-angular resolution observations of the thermal SZ with NIKA and NIKA2 and X-ray observations with XMM-Newton from which hydrostatic mass estimates can be derived. In addition, the CLASH dataset includes lensing convergence maps that can be converted into lensing estimates of the total mass of the cluster. One-dimensional mass profiles are used to derive integrated mass estimates accounting for systematic effects (data processing, modeling, etc.). Two-dimensional analysis of the maps can reveal substructures in the cluster and, therefore, inform us about the dynamical state of each system. Moreover, we are able to study the hydrostatic mass to lensing mass bias, across different morphology and a range of redshift clusters to give more insight on the hydrostatic mass bias. The analysis presented in this proceeding follows the study discussed in [20].
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Ruppin F, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Brodwin M, Calvo M, Catalano A, Decker B, De Petris M, Désert FX, Doyle S, Driessen EFC, Eisenhardt PRM, Gomez A, Gonzalez AH, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Maury A, Mauskopf P, Mayet F, McDonald M, Monfardini A, Moravec E, Muñoz-Echeverría M, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby AJ, Ritacco A, Romero C, Roussel H, Schuster K, Shu S, Sievers A, Stanford S, Stern D, Tucker C, Zylka R. Mapping the intracluster medium temperature in the era of NIKA2 and MUSTANG-2. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present preliminary results from an on-going program that aims at mapping the intracluster medium (ICM) temperature of high redshift galaxy clusters from the MaDCoWS sample using a joint analysis of shallow X-ray data obtained by Chandra and high angular resolution Sunyaev-Zel’dovich (SZ) observations realized with the NIKA2 and MUSTANG-2 cameras. We also present preliminary results from an on-going Open Time program within the NIKA2 collaboration that aims at mapping the ICM temperature of a galaxy cluster at z = 0.45 from the resolved detection of the relativistic corrections to the SZ spectrum. These studies demonstrate how high angular resolution SZ observations will play a major role in the coming decade to push the investigation of ICM dynamics and non-gravitational processes to high redshift before the next generation X-ray observatories come into play.
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Ejlali G, Adam R, Ade P, Ajeddig H, André P, Artis E, Aussel H, Beelen A, Benoît A, Berta S, Bing L, Bourrion O, Calvo M, Catalano A, de Looze I, De Petris M, Désert FX, Doyle S, Driessen EC, Galametz M, Galliano F, Gomez A, Goupy J, Jones A, Hughes A, Katsioli S, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez JF, Madden S, Maury A, Mauskopf P, Mayet F, Monfardini A, Muñoz-Echeverría M, Nersesian A, Perotto L, Pisano G, Ponthieu N, Revéret V, Rigby A, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Smith MWSL, Tabatabaei FS, Tucker C, Xilouris E, Zylka R. Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202225700016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength dust emission from galaxies is largely unexplored. The NIKA2 Guaranteed Time Project IMEGIN (Interpreting the Millimeter Emission of Galaxies with IRAM and NIKA2) has recently mapped the mm emission in the grand design spiral galaxy NGC6946. By subtracting the contributions from the free-free, synchrotron, and CO line emission, we map the distribution of the pure dust emission at 1:15mm and 2mm. Separating the arm/interarm regions, we find a dominant 2mm emission from interarms indicating the significant role of the general interstellar radiation field in heating the cold dust. Finally, we present maps of the dust mass, temperature, and emissivity index using the Bayesian MCMC modeling of the spectral energy distribution in NGC6946.
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Greenhalgh M, Gowers B, Iyengar K, Adam R. 1533 The Effect of Hip Fracture Anatomy and The Modality of Surgery on Red Blood Cell Transfusion and Mortality: A Retrospective Analysis. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Introduction
Hip fractures are common, with most requiring surgical management. Blood loss occurs from the fracture and intraoperatively. Often, blood transfusions are required. Hip fractures can be classified by their anatomy: intracapsular, intertrochanteric or subtrochanteric fractures. This study assesses the effect of fracture pattern and operation performed on transfusion rates within our centre. We aim to identify the patients most likely to require transfusion early, to improve outcomes.
Method
A retrospective cohort study of 324 consecutive hip fracture patients presenting to a district general hospital over one year. Data was collected from electronic patient records, the local transfusion laboratory, and the national hip fracture database.
Results
324 hip fractures were divided into 188 (58%) intracapsular, 121 (37%) intertrochanteric and 15 (5%) subtrochanteric fractures. The most common operation performed was hemiarthroplasty (128), followed by dynamic hip screw fixation (75). 75 (23%) of all patients received a blood transfusion. 28 (15%) of intracapsular, 42 (35%) of intertrochanteric and 5 (33%) of subtrochanteric fractures received transfusions. 47% of long intramedullary nails, 45% of short intramedullary nails, 29% of dynamic hip screws, 18% of hemiarthroplasties and 9% of total hip arthroplasties resulted in blood transfusions. One-year mortality in the transfused cohort was 52% and 30.5% in non-transfused.
Conclusions
Almost a quarter of hip fracture patients received a blood transfusion, which was associated with an increased risk of mortality. Intertrochanteric fractures most commonly led to a transfusion. The operation most associated with transfusions were long intramedullary nailings, and total hip arthroplasties were the least.
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Affiliation(s)
- M Greenhalgh
- Health Education England North West, Manchester, United Kingdom
| | - B Gowers
- Health Education England East Midlands, Leicester, United Kingdom
| | - K Iyengar
- Southport and Ormskirk NHS Foundation Trust, Southport, United Kingdom
| | - R Adam
- Southport and Ormskirk NHS Foundation Trust, Southport, United Kingdom
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Adam R, Desmettre T. Infarctus rénal révélé par une douleur du flanc. Ann Fr Med Urgence 2021. [DOI: 10.3166/afmu-2021-0349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Salyani A, Shah J, Adam R, Otieno G, Mbugua E, Shah R. Occult hepatitis B virus infection in a Kenyan cohort of HIV infected anti-retroviral therapy naïve adults. PLoS One 2021; 16:e0244947. [PMID: 33406137 PMCID: PMC7787452 DOI: 10.1371/journal.pone.0244947] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 12/18/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Occult hepatitis B virus (HBV) infection (OBI) is a phase of HBV infection characterised by the presence of HBV DNA in the absence of detectable hepatitis B surface antigen (HBsAg). OBI is of concern in the HIV-infected due to high prevalence and risk of HBV reactivation. The prevalence and clinico-demographic characteristics of OBI in anti-retroviral therapy (ART) naïve HIV infected adults in Kenya is unknown. METHODS A cross sectional study carried was out at three sites in Kenya. HIV infected ART naïve adults were enrolled and demographic data collected. Blood samples were assayed for HBsAg, HBV DNA, alanine aminotransferase, aspartate aminotransferase, antibodies to hepatitis B surface antigen (anti-HBs) and hepatitis B core antigen (anti-HBc). Data on CD4 count, HIV viral load and platelet count were obtained from medical records. RESULTS Of 208 patients, 199 (95.7%) did not report HBV vaccination, 196 (94.2%) were HBsAg negative, 119 (57.2%) had no HBV markers, 58 (27.9%) had previous HBV infection (anti-HBc positive) and 11 (5.3%) had OBI. All 11 (100%) OBI patients were anti-HBc positive. OBI patients comprised 19.0% of HBsAg negative, anti-HBc positive patients. There was no difference in clinico-demographic characteristics between the overt HBV, OBI and HBV negative patients. CONCLUSION This was the first study on OBI in ART naïve HIV infected adults in Kenya. The lower OBI prevalence compared to other sub-Saharan African countries could be attributed to lower HBV exposure. Most patients were HBV unexposed and unimmunized, outlining the need to implement guideline recommended immunization strategies.
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Affiliation(s)
- Adil Salyani
- Department of Medicine, Aga Khan University Hospital, Nairobi, Kenya
- * E-mail: (AS); (RS)
| | - Jasmit Shah
- Department of Medicine, Aga Khan University Hospital, Nairobi, Kenya
| | - Rodney Adam
- Department of Medicine, Aga Khan University Hospital, Nairobi, Kenya
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - George Otieno
- Department of Medicine, Kijabe Hospital, Kijabe, Kenya
| | - Evelyn Mbugua
- Department of Medicine, Kijabe Hospital, Kijabe, Kenya
| | - Reena Shah
- Department of Medicine, Aga Khan University Hospital, Nairobi, Kenya
- * E-mail: (AS); (RS)
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Adam R, Tibau A, Molto Valiente C, Seruga B, Ocaña A, Amir E, Templeton A. 1583O Clinical benefit of cancer drugs approved in Switzerland during the last decade. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Chow NA, Muñoz JF, Gade L, Berkow EL, Li X, Welsh RM, Forsberg K, Lockhart SR, Adam R, Alanio A, Alastruey-Izquierdo A, Althawadi S, Araúz AB, Ben-Ami R, Bharat A, Calvo B, Desnos-Ollivier M, Escandón P, Gardam D, Gunturu R, Heath CH, Kurzai O, Martin R, Litvintseva AP, Cuomo CA. Tracing the Evolutionary History and Global Expansion of Candida auris Using Population Genomic Analyses. mBio 2020; 11:e03364-19. [PMID: 32345637 PMCID: PMC7188998 DOI: 10.1128/mbio.03364-19] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/01/2020] [Indexed: 01/26/2023] Open
Abstract
Candida auris has emerged globally as a multidrug-resistant yeast that can spread via nosocomial transmission. An initial phylogenetic study of isolates from Japan, India, Pakistan, South Africa, and Venezuela revealed four populations (clades I, II, III, and IV) corresponding to these geographic regions. Since this description, C. auris has been reported in more than 30 additional countries. To trace this global emergence, we compared the genomes of 304 C. auris isolates from 19 countries on six continents. We found that four predominant clades persist across wide geographic locations. We observed phylogeographic mixing in most clades; clade IV, with isolates mainly from South America, demonstrated the strongest phylogeographic substructure. C. auris isolates from two clades with opposite mating types were detected contemporaneously in a single health care facility in Kenya. We estimated a Bayesian molecular clock phylogeny and dated the origin of each clade within the last 360 years; outbreak-causing clusters from clades I, III, and IV originated 36 to 38 years ago. We observed high rates of antifungal resistance in clade I, including four isolates resistant to all three major classes of antifungals. Mutations that contribute to resistance varied between the clades, with Y132F in ERG11 as the most widespread mutation associated with azole resistance and S639P in FKS1 for echinocandin resistance. Copy number variants in ERG11 predominantly appeared in clade III and were associated with fluconazole resistance. These results provide a global context for the phylogeography, population structure, and mechanisms associated with antifungal resistance in C. aurisIMPORTANCE In less than a decade, C. auris has emerged in health care settings worldwide; this species is capable of colonizing skin and causing outbreaks of invasive candidiasis. In contrast to other Candida species, C. auris is unique in its ability to spread via nosocomial transmission and its high rates of drug resistance. As part of the public health response, whole-genome sequencing has played a major role in characterizing transmission dynamics and detecting new C. auris introductions. Through a global collaboration, we assessed genome evolution of isolates of C. auris from 19 countries. Here, we described estimated timing of the expansion of each C. auris clade and of fluconazole resistance, characterized discrete phylogeographic population structure of each clade, and compared genome data to sensitivity measurements to describe how antifungal resistance mechanisms vary across the population. These efforts are critical for a sustained, robust public health response that effectively utilizes molecular epidemiology.
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Affiliation(s)
- Nancy A Chow
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - José F Muñoz
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Lalitha Gade
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - Elizabeth L Berkow
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - Xiao Li
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Rory M Welsh
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - Kaitlin Forsberg
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - Shawn R Lockhart
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
| | - Rodney Adam
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Alexandre Alanio
- Institut Pasteur, Molecular Mycology Unit, CNRS UMR2000, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Paris, France
- Laboratoire de Parasitologie-Mycologie, Hôpital Saint-Louis, Groupe Hospitalier Lariboisière, Saint-Louis, Fernand Widal, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Université Paris Diderot, Université de Paris, Paris, France
| | - Ana Alastruey-Izquierdo
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Sahar Althawadi
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | | | - Ronen Ben-Ami
- Infectious Diseases Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amrita Bharat
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Belinda Calvo
- Department of Infectious Diseases, School of Medicine, Universidad del Zulia, Maracaibo, Venezuela
| | - Marie Desnos-Ollivier
- Institut Pasteur, Molecular Mycology Unit, CNRS UMR2000, National Reference Center for Invasive Mycoses and Antifungals (NRCMA), Paris, France
| | - Patricia Escandón
- Grupo de Microbiología, Instituto Nacional de Salud, Bogotá, Colombia
| | - Dianne Gardam
- Department of Microbiology, PathWest Laboratory Medicine FSH Network, Fiona Stanley Hospital, Murdoch, Australia
| | - Revathi Gunturu
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Christopher H Heath
- Department of Microbiology, PathWest Laboratory Medicine FSH Network, Fiona Stanley Hospital, Murdoch, Australia
- Department of Infectious Diseases, Fiona Stanley Hospital, Murdoch, Australia
- Infectious Diseases, Royal Perth Hospital, Perth, Australia
- Faculty of Health & Medical Sciences, University of Western Australia, Crawley, Washington, Australia
| | - Oliver Kurzai
- German National Reference Center for Invasive Fungal Infections NRZMyk, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knöll-Institute, Jena, Germany
- Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
| | - Ronny Martin
- German National Reference Center for Invasive Fungal Infections NRZMyk, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knöll-Institute, Jena, Germany
- Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
| | - Anastasia P Litvintseva
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia, USA
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Abstract
IntroductionEmotional face recognition is significant for social communication. This is impaired in mood disorders, such as bipolar disorder. Individuals with bipolar disorder lack the ability to perceive facial expressions.ObjectivesTo analyse the capacity of emotional face recognition in subjects diagnosed with bipolar disorder.AimsTo establish a correlation between emotion recognition ability and the evolution of bipolar disease.MethodsA sample of 24 subjects were analysed in this trial, diagnosed with bipolar disorder (according to ICD-10 criteria), who were hospitalised in the Psychiatry Clinic of Timisoara and monitored in outpatients clinic. Subjects were introduced in the trial based on inclusion/exclusion criteria. The analysed parameters were: socio-demographic (age, gender, education level), the number of relapses, the predominance of manic or depressive episodes, and the ability of identifying emotions (Reading the Mind in the Eyes Test).ResultsMost of the subjects (79.16%) had a low ability to identify emotions, 20.83% had a normal capacity to recognise emotions, and none of them had a high emotion recognition capacity. The positive emotions (love, joy, surprise) were easier recognised, by 75% of the subjects, than the negative ones (anger, sadness, fear). There was no evident difference in emotional face recognition between the individuals with predominance of manic episodes than the ones who had mostly depressive episodes, and between the number of relapses.ConclusionsThe individuals with bipolar disorder have difficulties in identifying facial emotions, but with no obvious correlation between the analysed parameters.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Panza J, Helou C, Goulder A, Dumas S, Sorabella L, Prescott L, Adam R. 95: Efficacy and safety of thoracic epidural vs. transversus abdominis plane block (TAP) in laparotomy for gynecologic surgery. Am J Obstet Gynecol 2020. [DOI: 10.1016/j.ajog.2019.12.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Peretto N, Rigby A, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Bacmann A, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Mayet F, Monfardini A, Motte F, Perotto L, Pisano G, Ponthieu N, Revéret V, Ristorcelli I, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. GASTON: Galactic Star Formation with NIKA2 A new population of cold massive sources discovered. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Understanding where and when the mass of stars is determined is one of the fundamental, mostly unsolved, questions in astronomy. Here, we present the first results of GASTON, the Galactic Star Formation with NIKA2 large programme on the IRAM 30m telescope, that aims to identify new populations of low-brightness sources to tackle the question of stellar mass determination across all masses. In this paper, we focus on the high-mass star formation part of the project, for which we map a ~ 2 deg2 region of the Galactic plane around l = 24° in both 1.2 mm and 2.0 mm continuum. Half-way through the project, we reach a sensitivity of 3.7 mJy/beam at 1.2mm. Even though larger than our target sensitivity of 2 mJy, the current sensitivity already allows the identification of a new population of cold, compact sources that remained undetected in any (sub-)mm Galactic plane survey so far. In fact, about 25% of the ~ 1600 compact sources identified in the 1.2mm GASTON image are new detections. We present a preliminary analysis of the physical properties of the GASTON sources as a function of their evolutionary stage, arguing for a potential evolution of the mass distribution of these sources with time.
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Mayet F, Adam R, Ade P, André P, Andrianasolo A, Arnaud M, Aussel H, Bartalucci I, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Monfardini A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt G, Revéret V, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. Cluster cosmology with the NIKA2 SZ Large Program. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The main limiting factor of cosmological analyses based on thermal Sunyaev-Zel’dovich (SZ) cluster statistics comes from the bias and systematic uncertainties that affect the estimates of the mass of galaxy clusters. High-angular resolution SZ observations at high redshift are needed to study a potential redshift or morphology dependence of both the mean pressure profile and of the mass-observable scaling relation used in SZ cosmological analyses. The NIKA2 camera is a new generation continuum instrument installed at the IRAM 30-m telescope. With a large field of view, a high angular resolution and a high-sensitivity, the NIKA2 camera has unique SZ mapping capabilities. In this paper, we present the NIKA2 SZ large program, aiming at observing a large sample of clusters at redshifts between 0.5 and 0.9, and the characterization of the first cluster oberved with NIKA2.
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Ruppin F, Adam R, Ade P, André P, Andrianasolo A, Arnaud M, Aussel H, Bartalucci I, Bautz M, Beelen A, Benoît A, Bideaud A, Bourrion O, Brodwin M, Calvo M, Catalano A, Comis B, Decker B, De Petris M, Désert FX, Doyle S, Driessen EFC, Eisenhardt PRM, Gomez A, Gonzalez AH, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Mayet F, McDonald M, Monfardini A, Moravec E, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt GW, Revéret V, Ritacco A, Romero C, Roussel H, Schuster K, Shu S, Sievers A, Stanford SA, Stern D, Tucker C, Zylka R. Mapping the gas thermodynamic properties of the massive cluster merger MOO J1142+1527 at z = 1.2. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present the results of the analysis of the very massive cluster MOO J1142+1527 at a redshift z = 1.2 based on high angular resolution NIKA2 Sunyaev-Zel’dovich (SZ) andChandraX-ray data. This multi-wavelength analysis enables us to estimate the shape of the temperature profile with unprecedented precision at this redshift and to obtain a map of the gas entropy distribution averaged along the line of sight. The comparison between the cluster morphological properties observed in the NIKA2 andChandramaps together with the analysis of the entropy map allows us to conclude that MOOJ1142+1527 is an on-going merger hosting a cool-core at the position of the X-ray peak. This work demonstrates how the addition of spatially-resolved SZ observations to low signal-to-noise X-ray data can bring valuable insights on the intracluster medium thermodynamic properties atz>1.
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Ritacco A, Adam R, Ade P, Ajeddig H, André P, Andrianasolo A, Aussel H, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Maury A, Mayet F, Monfardini A, Perotto L, Pisano G, Ponthieu N, Revéret V, Romero C, Roussel H, Ruppin F, Schuster K, Shimajiri Y, Shu S, Sievers A, Tucker C, Zylka R. Observing with NIKA2Pol from the IRAM 30m telescope : Early results on the commissioning phase. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The NIKA2 polarization channel at 260 GHz (1.15 mm) has been proposed primarily to observe galactic star-forming regions and probe the critical scales between 0.01-0.05 pc at which magnetic field lines may channel the matter of interstellar filaments into growing dense cores. The NIKA2 polarime-ter consists of a room temperature continuously rotating multi-mesh HWP and a cold polarizer that separates the two orthogonal polarizations onto two 260 GHz KIDs arrays. We describe in this paper the preliminary results obtained during the most recent commissioning campaign performed in December 2018. We concentrate here on the analysis of the extended sources, while the observation of compact sources is presented in a companion paper [12]. We present preliminary NIKA2 polarization maps of the Crab nebula. We find that the integrated polarization intensity flux measured by NIKA2 is consistent with expectations. In terms of polarization angle, we are still limited by systematic uncertainties that will be further investigated in the forthcoming commissioning campaigns.
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Ajeddig H, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Maury A, Mauskopf P, Mayet F, Monfardini A, Perotto L, Pisano G, Ponthieu N, Revéret V, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shimajiri Y, Shu S, Sievers A, Tucker C, Zylka R. Preliminary results on the instrumental polarization of NIKA2-Pol at the IRAM 30m telescope. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Clarifying the role of magnetic fields in the star formation process is crucial. Observations have already shown that magnetic fields play an important role in the early stages of star formation. The high spatial resolution (∼0.01 to 0.05 pc) provided by NIKA2-Pol 1.2 mm imaging polarimetry of nearby clouds will help us clarify the geometry of the B-field within dense cores and molecular filaments as part of the IRAM 30m large program B-FUN. There are numerous challenging issues in the validation of NIKA2-Pol such as the calibration of instrumental polarization. The commissioning phase of NIKA2-Pol is underway and is helping us characterize the intensity-to-polarization “leakage” pattern of the instrument. We present a preliminary analysis of the leakage pattern and its dependence with elevation. We also present the current leakage correction made possible by the NIKA2 pipeline in polarization mode based on the NIKA2-Pol commissioning data taken in December 2018. Based on reduced Stokes I, Q, U data we find that the leakage pattern of NIKA2-Pol depends on elevation and is sensitive to the focus of the telescope.
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Lestrade JF, Augereau JC, Booth M, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Holland W, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lefèvre C, Macías-Pérez J, Mauskopf P, Mayet F, Monfardini A, Perotto L, Pisano G, Ponthieu N, Revéret V, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Thébault P, Tucker C, Zylka R. Debris disks around stars in the NIKA2 era. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The new NIKA2 camera at the IRAM 30m radiotelescope was used to observe three known debris disks in order to constrain the SED of their dust emission in the millimeter wavelength domain. We have found that the spectral index between the two NIKA2 bands (1mm and 2mm) is consistent with the Rayleigh-Jeans regime (λ-2), unlike the steeper spectra (λ-3) measured in the submillimeter-wavelength domain for two of the three disks - around the stars Vega and HD107146. We provide a succesful proof of concept to model this spectral inversion in using two populations of dust grains, those smaller and those larger than a grain radius a0 of 0.5mm. This is obtained in breaking the slope of the size distribution and the functional form of the absorption coefficient of the standard model. The third disk - around the star HR8799 - does not exhibit this spectral inversion but is also the youngest.
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Hobeika C, Fuks D, Cauchy F, Goumard C, Soubrane O, Gayet B, Salamé E, Cherqui D, Vibert E, Scatton O, Nomi T, Oudafal N, Kawai T, Komatsu S, Okumura S, Petrucciani N, Laurent A, Bucur P, Barbier L, Trechot B, Nunèz J, Tedeschi M, Allard MA, Golse N, Ciacio O, Pittau G, Cunha AS, Adam R, Laurent C, Chiche L, Leourier P, Rebibo L, Regimbeau JM, Ferre L, Souche FR, Chauvat J, Fabre JM, Jehaes F, Mohkam K, Lesurtel M, Ducerf C, Mabrut JY, Hor T, Paye F, Balladur P, Suc B, Muscari F, Millet G, El Amrani M, Ratajczak C, Lecolle K, Boleslawski E, Truant S, Pruvot FR, Kianmanesh AR, Codjia T, Schwarz L, Girard E, Abba J, Letoublon C, Chirica M, Carmelo A, VanBrugghe C, Cherkaoui Z, Unterteiner X, Memeo R, Pessaux P, Buc E, Lermite E, Barbieux J, Bougard M, Marchese U, Ewald J, Turini O, Thobie A, Menahem B, Mulliri A, Lubrano J, Zemour J, Fagot H, Passot G, Gregoire E, Hardwigsen J, le Treut YP, Patrice D. Impact of cirrhosis in patients undergoing laparoscopic liver resection in a nationwide multicentre survey. Br J Surg 2020; 107:268-277. [PMID: 31916594 DOI: 10.1002/bjs.11406] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/21/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The aim was to analyse the impact of cirrhosis on short-term outcomes after laparoscopic liver resection (LLR) in a multicentre national cohort study. METHODS This retrospective study included all patients undergoing LLR in 27 centres between 2000 and 2017. Cirrhosis was defined as F4 fibrosis on pathological examination. Short-term outcomes of patients with and without liver cirrhosis were compared after propensity score matching by centre volume, demographic and tumour characteristics, and extent of resection. RESULTS Among 3150 patients included, LLR was performed in 774 patients with (24·6 per cent) and 2376 (75·4 per cent) without cirrhosis. Severe complication and mortality rates in patients with cirrhosis were 10·6 and 2·6 per cent respectively. Posthepatectomy liver failure (PHLF) developed in 3·6 per cent of patients with cirrhosis and was the major cause of death (11 of 20 patients). After matching, patients with cirrhosis tended to have higher rates of severe complications (odds ratio (OR) 1·74, 95 per cent c.i. 0·92 to 3·41; P = 0·096) and PHLF (OR 7·13, 0·91 to 323·10; P = 0·068) than those without cirrhosis. They also had a higher risk of death (OR 5·13, 1·08 to 48·61; P = 0·039). Rates of cardiorespiratory complications (P = 0·338), bile leakage (P = 0·286) and reoperation (P = 0·352) were similar in the two groups. Patients with cirrhosis had a longer hospital stay than those without (11 versus 8 days; P = 0·018). Centre expertise was an independent protective factor against PHLF in patients with cirrhosis (OR 0·33, 0·14 to 0·76; P = 0·010). CONCLUSION Underlying cirrhosis remains an independent risk factor for impaired outcomes in patients undergoing LLR, even in expert centres.
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Affiliation(s)
- C Hobeika
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | - D Fuks
- Department of Digestive, Oncological and Metabolic Surgery, Institut Mutualiste Montsouris, University Paris Descartes, Paris, France
| | - F Cauchy
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Hôpital Beaujon, Clichy, France
| | - C Goumard
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | - O Soubrane
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Hôpital Beaujon, Clichy, France
| | - B Gayet
- Department of Digestive, Oncological and Metabolic Surgery, Institut Mutualiste Montsouris, University Paris Descartes, Paris, France
| | - E Salamé
- Department of Digestive Surgery and Liver Transplantation, Trousseau University Hospital, Tours University, Tours, France
| | - D Cherqui
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Centre Hépato-biliaire de Paul Brousse, Villejuif, France
| | - E Vibert
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Centre Hépato-biliaire de Paul Brousse, Villejuif, France
| | - O Scatton
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Sorbonne Université, Centre de Recherche Scientifique Saint Antoine, Hôpital Pitié Salpétrière, Paris, France
| | | | - T Nomi
- Nara Medical University, Nara, Japan
| | - N Oudafal
- Institut Mutualiste Montsouris, Paris, France
| | - T Kawai
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | - S Komatsu
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | - S Okumura
- Pitié Salpétrière Hospital, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | | | - A Laurent
- Hôpital Henri Mondor, APHP, Creteil, France
| | - P Bucur
- Trousseau Hospital, University Hospital Centre of Tours, Tours, France
| | - L Barbier
- Trousseau Hospital, University Hospital Centre of Tours, Tours, France
| | - B Trechot
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - J Nunèz
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - M Tedeschi
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - M-A Allard
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - N Golse
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - O Ciacio
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - G Pittau
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - A Sa Cunha
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - R Adam
- Centre Hépato-biliaire de Paul Brousse, APHP, Villejuif, France
| | - C Laurent
- Hospital University Centre of Bordeaux, Bordeaux, France
| | - L Chiche
- Hospital University Centre of Bordeaux, Bordeaux, France
| | - P Leourier
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - L Rebibo
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - J-M Regimbeau
- Hospital University Centre of Amiens-Picardie, Amiens, France
| | - L Ferre
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - F R Souche
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - J Chauvat
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - J-M Fabre
- Saint Eloi Hospital, Hospital University Centre of Montpellier, Montpellier, France
| | - F Jehaes
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - K Mohkam
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - M Lesurtel
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - C Ducerf
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - J-Y Mabrut
- Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - T Hor
- St Antoine Hospital, APHP, Paris, France
| | - F Paye
- St Antoine Hospital, APHP, Paris, France
| | - P Balladur
- St Antoine Hospital, APHP, Paris, France
| | - B Suc
- Rangueil Hospital, Hospital University Centre of Toulouse, Toulouse, France
| | - F Muscari
- Rangueil Hospital, Hospital University Centre of Toulouse, Toulouse, France
| | - G Millet
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - M El Amrani
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - C Ratajczak
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - K Lecolle
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - E Boleslawski
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - S Truant
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - F-R Pruvot
- Claude Huriez Hospital, Hospital University Centre of Lille, Lille, France
| | - A-R Kianmanesh
- Robert Debré Hospital, Hospital University Centre of Reims, Reims, France
| | - T Codjia
- Charles Nicolle Hospital, Hospital University Centre of Rouen, Rouen, France
| | - L Schwarz
- Charles Nicolle Hospital, Hospital University Centre of Rouen, Rouen, France
| | - E Girard
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - J Abba
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - C Letoublon
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | - M Chirica
- Michalon Hospital, Hospital University Centre of Grenoble, Grebnoble, France
| | | | | | - Z Cherkaoui
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - X Unterteiner
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - R Memeo
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - P Pessaux
- Nouvel Hôpital Civil, Hospital University Centre of Strasbourg, Strasbourg, France
| | - E Buc
- Hospital University Centre of Clermont-Ferrand, Clermont-Ferrand, France
| | - E Lermite
- Hospital University Centre of Angers, Angers, France
| | - J Barbieux
- Hospital University Centre of Angers, Angers, France
| | - M Bougard
- Hospital University Centre of Angers, Angers, France
| | - U Marchese
- Institut Paoli-Calmettes, Marseille, France
| | - J Ewald
- Institut Paoli-Calmettes, Marseille, France
| | - O Turini
- Institut Paoli-Calmettes, Marseille, France
| | - A Thobie
- Hospital University Centre of Caen Normandie, Caen, France
| | - B Menahem
- Hospital University Centre of Caen Normandie, Caen, France
| | - A Mulliri
- Hospital University Centre of Caen Normandie, Caen, France
| | - J Lubrano
- Hospital University Centre of Caen Normandie, Caen, France
| | - J Zemour
- Hospital University Centre of Saint-Pierre, Saint Pierre, Department of Réunion, France
| | - H Fagot
- Hospital University Centre of Saint-Pierre, Saint Pierre, Department of Réunion, France
| | - G Passot
- Hospital University Centre of Lyon Sud, Lyon, France
| | - E Gregoire
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - J Hardwigsen
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - Y-P le Treut
- La Timone Hospital, Hospital University Centre of Marseille, Marseille, France
| | - D Patrice
- Louis Pasteur Hospital, Colmar, France
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Roussel H, Ponthieu N, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen EFC, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Mayet F, Monfardini A, Perotto L, Pisano G, Revéret V, Ritacco A, Romero C, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. NIKA2 mapping and cross-instrument SED extraction of extended sources with Scanamorphos. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The steps taken to tailor to NIKA2 observations the Scanamorphos algorithm (initially developed to subtract low-frequency noise from Herschel on-the-fly observations) are described, focussing on the consequences of the different instrument architecture and observation strategy. The method, making the most extensive use of the redundancy built in the multi-scan coverage with large arrays of a given region of the sky, is applicable to extended sources, while the pipeline is so far optimized for compact sources. An example of application is given. A related tool to build consistent broadband SEDs from 60 microns to 2 mm, combining Herschel and NIKA2 data, has also been developed. Its main task is to process the data least affected by low-frequency noise and coverage limitations (i.e. the Herschel data) through the same transfer function as the NIKA2 data, simulating the same scan geometry and applying the same noise and atmospheric signal as extracted from the 1mm and 2mm data.
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Ritacco A, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Maury A, Mayet F, Monfardini A, Perotto L, Pisano G, Ponthieu N, Revéret V, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. The NIKA polarimeter on science targets: Crab nebula observations at 150 GHz and dual-band polarization images of Orion Molecular Cloud OMC-1. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present here the polarization system of the NIKA camera and give a summary of the main results obtained and performed studies on Orion and the Crab nebula. The polarization system was equipped with a room temperature continuously rotating multi-mesh half wave plate and a grid polarizer facing the NIKA cryostat window. NIKA even though less sensitive than NIKA2 had polarization capability in both 1 and 2 millimiter bands. NIKA polarization observations demonstrated the ability of such a technology in detecting the polarization of different targets, compact and extended sources like the Crab nebula and Orion Molecular Cloud region OMC-1. These measurements together with the developed techniques to deal with systematics, opened the way to the current observations of NIKA2 in polarization that will provide important advances in the studies of galactic and extra-galactic emission and magnetic fields.
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Macías-Pérez J, Adam R, Ade P, André P, Andrianasolo A, Aussel H, Arnaud M, Bartalucci I, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kéruzoré F, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Mauskopf P, Mayet F, Monfardini A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt G, Revéret V, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. NIKA: a mm camera for Sunyaev-Zel’dovich science in clusters of galaxies. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Clusters of galaxies, the largest bound objects in the Universe, constitute a cosmological probe of choice, which is sensitive to both dark matter and dark energy. Within this framework, the Sunyaev-Zel’dovich (SZ) effect has opened a new window for the detection of clusters of galaxies and for the characterization of their physical properties such as mass, pressure and temperature. NIKA, a KID-based dual band camera installed at the IRAM 30-m telescope, was particularly well adapted in terms of frequency, angular resolution, field-of-view and sensitivity, for the mapping of the thermal and kinetic SZ effect in high-redshift clusters. In this paper, we present the NIKA cluster sample and a review of the main results obtained via the measurement of the SZ effect on those clusters: reconstruction of the cluster radial pressure profile, mass, temperature and velocity.
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39
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Kéruzoré F, Adam R, Ade P, André P, Andrianasolo A, Arnaud M, Aussel H, Bartalucci I, Beelen A, Benoît A, Bideaud A, Bourrion O, Calvo M, Catalano A, Comis B, De Petris M, Désert FX, Doyle S, Driessen E, Gomez A, Goupy J, Kramer C, Ladjelate B, Lagache G, Leclercq S, Lestrade JF, Macías-Pérez J, Mauskopf P, Mayet F, Monfardini A, Perotto L, Pisano G, Pointecouteau E, Ponthieu N, Pratt G, Revéret V, Ritacco A, Romero C, Roussel H, Ruppin F, Schuster K, Shu S, Sievers A, Tucker C, Zylka R. A low-mass galaxy cluster as a test-case study for the NIKA2 SZ Large Program. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022800012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
High-resolution mapping of the hot gas in galaxy clusters is a key tool for cluster-based cosmological analyses. Taking advantage of the NIKA2 millimeter camera operated at the IRAM 30-m telescope, the NIKA2 SZ Large Program seeks to get a high-resolution follow-up of 45 galaxy clusters covering a wide mass range at high redshift in order to re-calibrate some of the tools needed for the cosmological exploitation of SZ surveys. We present the second cluster analysis of this program, targeting one of the faintest sources of the sample in order to tackle the difficulties in data reduction for such faint, low-SNR clusters. In this study, the main challenge is the precise estimation of the contamination by sub-millimetric point sources, which greatly affects the tSZ map of the cluster. We account for this contamination by performing a joint fit of the SZ signal and of the flux density of the compact sources. A prior knowledge of these fluxes is given by the adjustment of the SED of each source using data from both NIKA2 and the Herschel satellite. The first results are very promising and demonstrate the possibility to estimate thermodynamic properties with NIKA2, even in a compact cluster heavily contaminated by point sources.
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40
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Fischler M, Cardin JL, Faucon T, Adam R. Presence of anesthesiologists and nurses in the operating room: Liability of surgeons and health care facilities. J Visc Surg 2019; 156 Suppl 1:S15-S20. [PMID: 31196806 DOI: 10.1016/j.jviscsurg.2019.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The presence of an anesthesiologist and certified registered nurse anesthesiologist in the operating room remains a topic of discussion in many facilities. This article provides an overview on the legislation and recommendations on this topic and recounts some of the related jurisprudence. The opinions of various actors, surgeons, anesthesiologists, anesthesiology-intensive care physicians, certified registered nurse anesthesiologists, care-facility directors and insurance companies are included. Based on these elements, we attempt to answer the question of presence of competence in anesthesiology in the operating room.
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Affiliation(s)
- M Fischler
- Anesthesiology department, hôpital Foch, 40, rue Worth, 92150 Suresnes, France.
| | - J L Cardin
- Gastro-intestinal surgery unit, polyclinique du Maine, 4, avenue Français-Libres, 53010 Laval cedex, France
| | - T Faucon
- Hôpital Privé Océane, 11, rue du Docteur Joseph Audic, 56001 Vannes cedex, France
| | - R Adam
- Hôpital Privé Sévigné, 3, rue du Chêne-Germain, 35510 Cesson-Sévigné, France
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Briosa E Gala A, Dimarco AD, Adam R, Peebles C, Haydock P, Harden S, Flett A. P122Aetiology of right ventricular mass defined by CMRI. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez110.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Briosa E Gala
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - A D Dimarco
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - R Adam
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - C Peebles
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - P Haydock
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - S Harden
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - A Flett
- University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom of Great Britain & Northern Ireland
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42
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Allard MA, Nishioka Y, Beghdadi N, Imai K, Gelli M, Yamashita S, Kitano Y, Kokudo T, Yamashita YI, Sa Cunha A, Vibert E, Elias D, Cherqui D, Goere D, Adam R, Baba H, Hasegawa K. Multicentre study of perioperative versus adjuvant chemotherapy for resectable colorectal liver metastases. BJS Open 2019; 3:678-686. [PMID: 31592094 PMCID: PMC6773651 DOI: 10.1002/bjs5.50174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 03/20/2019] [Indexed: 01/17/2023] Open
Abstract
Background It is not known whether perioperative chemotherapy, compared with adjuvant chemotherapy alone, improves disease‐free survival (DFS) in patients with upfront resectable colorectal liver metastases (CLM). The aim of this study was to estimate the impact of neoadjuvant 5‐fluorouracil, leucovorin and oxaliplatin (FOLFOX) on DFS in patients with upfront resectable CLM. Methods Consecutive patients who presented with up to five resectable CLM at two Japanese and two French centres in 2008–2015 were included in the study. Both French institutions favoured perioperative FOLFOX, whereas the two Japanese groups systematically preferred upfront surgery plus adjuvant chemotherapy. Inverse probability of treatment weighting (IPTW) and Cox regression multivariable models were used to adjust for confounding. The primary outcome was DFS. Results Some 300 patients were included: 151 received perioperative chemotherapy and 149 had upfront surgery plus adjuvant chemotherapy. The weighted 3‐year DFS rate was 33·5 per cent after perioperative chemotherapy compared with 27·1 per cent after upfront surgery plus adjuvant chemotherapy (hazard ratio (HR) 0·85, 95 per cent c.i. 0·62 to 1·16; P = 0·318). For the subgroup of 165 patients who received adjuvant FOLFOX successfully (for at least 3 months), the adjusted effect of neoadjuvant chemotherapy was not significant (HR 1·19, 0·74 to 1·90; P = 0·476). No significant effect of neoadjuvant chemotherapy was observed in multivariable regression analysis. Conclusion Compared with adjuvant chemotherapy, perioperative FOLFOX does not improve DFS in patients with resectable CLM, provided adjuvant chemotherapy is given successfully.
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Affiliation(s)
- M-A Allard
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - Y Nishioka
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine University of Tokyo Tokyo Japan
| | - N Beghdadi
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - K Imai
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - M Gelli
- Department of Oncological Surgery Gustave Roussy Villejuif France
| | - S Yamashita
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine University of Tokyo Tokyo Japan
| | - Y Kitano
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - T Kokudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine University of Tokyo Tokyo Japan
| | - Y-I Yamashita
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - A Sa Cunha
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - E Vibert
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - D Elias
- Department of Oncological Surgery Gustave Roussy Villejuif France
| | - D Cherqui
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - D Goere
- Department of Oncological Surgery Gustave Roussy Villejuif France
| | - R Adam
- Centre Hépatobiliaire Paul Brousse Hospital, Université Paris Sud Villejuif France
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - K Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine University of Tokyo Tokyo Japan
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Okello MO, Mung'ayi V, Adam R, Kabugi J. A comparison of risk of hypotension using standard doses of remifentanil versus dexmedetomidine infusions in adult patients undergoing surgery under general anaesthesia at the Aga Khan University Hospital, Nairobi. Afr Health Sci 2018; 18:1267-1282. [PMID: 30766593 PMCID: PMC6354876 DOI: 10.4314/ahs.v18i4.48] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Remifentanil and dexmedetomidine are common agents used in general anaesthesia, monitored anaesthesia care and critical care. When combined with inhaled or intravenous anaesthetic agents intra-operatively, they provide analgesia, lower general anaesthetic requirements and provide sedation and analgesia in the peri-operative period if indicated. Pharmacodynamically, they cause hypotension and bradycardia which are reversible if well managed. Past studies of these drugs have shown a significant proportion of patients with hypotension when compared with similar agents or in isolation. This study compares these two drugs on the effect of hypotension when used as adjuncts to general anaesthesia at low dose standard rate of infusions. Objective To compare the proportion of hypotension episodes in a group of adult patients receiving dexmedetomidine infusion at 0.4mcg/kg/hr versus a group receiving remifentanil infusion at 0.2mcg/kg/min, severity of hypotension and physician interventions in each group. Methods One hundred and four patients scheduled for elective surgery under general anaesthesia were randomized into two groups: Control group; received remifentanil infusion at 0.2mcg/kg/min Intervention group; received dexmedetomidine at 0.4mcg/kg/hr. General anaesthesia was standardized in both groups. The patients were blinded to the study. Baseline blood pressures of all patients were determined prior to induction. The patient's demographic characteristics were recorded. The number of patients who developed hypotension, the frequency of hypotension and the physician interventions were recorded and analysed. Results The age and gender characteristics were different between the two groups (p values <0.023 and 0.05 respectively) however they did not affect the proportion of patients with hypotension. The weight, baseline pressures and ASA status of the patients within the groups were similar. The operative procedures varied within the groups. General surgery did not influence the outcome of hypotension in both arms. The duration of surgery in remifentanil group exceeded that of Dexmedetomidine p value<0.0005 however the time to the first episode of hypotension was similar between the groups. The episodes of hypotension were fewer in the dexmedetomidine arm and the proportion of patients with hypotension were higher in the remifentanil arm, p value<0.001, R.R 0. = 0.5938, 95% C.I= 0.329–0.819 The physician interventions administered were similar between the two groups except the use of ephedrine between the groups. Conclusion Among this population, at standard infusion rates, the proportion of patients that risk hypotension was greater in those undergoing elective surgery receiving remifentanil at 0.2mcg/kg/min than in dexmedetomidine at 0.4mcg/kg/hr under isoflurane based anaesthesia.
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Affiliation(s)
| | | | - Rodney Adam
- Department of Pathology, Aga Khan University, East Africa
| | - Jimmie Kabugi
- Department of Anaesthesia, Aga Khan University, East Africa
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Adam R, Okinda N, Revathi G, Fontaine M, Kagotho E, Castanheira M, Pfaller MA, Maina D. 378. Candida auris Fungemia: Risk Factors and Outcome. Open Forum Infect Dis 2018. [PMCID: PMC6254831 DOI: 10.1093/ofid/ofy210.389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Candida auris emerged as a human pathogen in 2009 and has subsequently been identified around the world as a cause of invasive candidiasis. Published clinical information on this organism consists primarily of case reports and small case series; thus, data from a single institution will allow us to examine risk factors for acquiring C. auris candidemia in comparison to other Candida species. Methods Aga Khan University Hospital Nairobi is a 280-bed referral center with 50 critical care beds. Candida species account for 34% of hospital acquired bloodstream infections (Maina et al., 2016). Blood cultures were monitored continuously using the Bactec and the VitekII was used for identification and susceptibility. The VitekII identified C. auris as Candida haemulonii, but species determinations were done for 21 of the isolates and all were identified as C. auris using published methods (Pfaller et al., 2012). Results From September 2010 to December 2016, 201 patients had 228 episodes of candidemia. Further analyses were performed only for first episodes. C. auris accounted for 38% of candidemia cases and 25% for C. albicans. A case–control analysis was done to compare patients with C. auris vs. Candida albicans fungemia. C. auris patients were more likely to be from critical care beds (78% vs. 52%; P = 0.003) and had been hospitalized longer (mean 33 days vs. 13 days; P < 0.001) prior to the positive blood culture. There was a trend toward more pre-existing renal failure (39% vs. 24%; P = 0.09) in C. auris patients and during the two weeks prior to candidemia, they were more likely to have central lines (84% vs. 54%; P ≤ 0.001). C. auris patients received a mean of 3.35 antibiotic classes vs. 2.6 for C. albicans (P = 0.02). 75% of C. auris patients received carbapenems vs. 54% for C. albicans (P = 0.02). Eighteen percent of C. auris patients had ≥14 days of candidemia, despite frequent lack of followup blood cultures. Prolonged candidemia was not associated with development of in vitro resistance. The crude mortality was 29%, compared with 36% for C. albicans and 39% for other Candida spp. (NS). Conclusion These findings suggest an opportunistic pathogen that may be less virulent, but difficult to eradicate and that control efforts should focus on antimicrobial usage. Disclosures M. Castanheira, Allergan: Research Contractor, Research support. M. A. Pfaller, Allergan: Research Contractor, Research support.
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Affiliation(s)
- Rodney Adam
- Pathology and Medicine, Aga Khan University, Nairobi, Kenya
| | - Nancy Okinda
- Pathology and Medicine, Aga Khan University, Nairobi, Kenya
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Cortesi PA, Belli LS, Perricone G, Adam R, Strazzabosco M, Facchetti R, Karam V, Duvoux C. Impact of new HCV therapies on liver transplantation: the European Liver Transplant Registry study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- PA Cortesi
- Research Centre on Public Health (CESP), University of Milan-Bicocca, Monza, Italy
| | - LS Belli
- Department of Gastroenterology and Hepatology. Liver Unit. Niguarda Hospital, Milan, Italy
| | - G Perricone
- Department of Gastroenterology and Hepatology. Liver Unit. Niguarda Hospital, Milan, Italy
| | - R Adam
- Centre Hépatobiliaire, Université Paris-Sud, Hôpital Paul Brousse, Villejuif, France
| | - M Strazzabosco
- Yale University Liver Center, Department of Medicine, New Haven, USA
| | - R Facchetti
- Research Centre on Public Health (CESP), University of Milan-Bicocca, Monza, Italy
| | - V Karam
- Centre Hépatobiliaire, Université Paris-Sud, Hôpital Paul Brousse, Villejuif, France
| | - C Duvoux
- Department of Hepatology and Liver Transplant Unit, Henri Mondor Hospital, Assistance Publique-Hôpitaux de Paris, Paris-Est University, Creteil, France
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Moyal L, Adam R, Boumendil J, Meney J, Rodallec T, Akesbi J, Nordmann JP. [Boston Keratoprosthesis with temporal aponeurosis graft: A solution when there seems to be no more]. J Fr Ophtalmol 2018; 41:830-835. [PMID: 30343989 DOI: 10.1016/j.jfo.2018.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 01/30/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE To report cases of patients with severe bilateral corneal blindness and recurrent refractory perforation to keratoplasty and conventional treatment, for whom Boston keratoprosthesis (KP) was a satisfactory alternative when combined with a temporalis aponeurosis graft. DESCRIPTION OF CASES The first patient had progressive Lyell syndrome with spontaneous corneal perforation. The second had a severe graft vs. host reaction with a persistent Seidel-positive descemetocele. Despite repeated penetrating keratoplasties, amniotic membrane (AM) transplantations, and buccal mucosal (BM) grafts, they both experienced recurrent corneal perforation. The only solution thus appeared to be Boston Type I KP surgery. One month postoperatively, the first patient had to receive a temporalis aponeurosis (TA) graft, due to thinning of the recipient graft. Six months postoperatively, his visual acuity (VA) was 1/10 without correction, and the corneal status had been stabilized. The second patient underwent KP and TA graft concurrently. Six months after surgery, VA was 2/10 uncorrected, and the local inflammation had been stabilized. OBSERVATION Boston type I keratoprostheses constitute an alternative in cases of severe bilateral corneal blindness with perforation refractory to conventional treatment and surgery, with satisfactory visual results. DISCUSSION Patients with preoperative severe ocular surface disease are at greater risk of postoperative keratolysis. For our patients with a higher risk, TA graft prevented corneal melt. TA seems to be more effective than AM or BM in preventing corneal thinning or melt. CONCLUSION We would recommend performing a TA graft in combination with Boston KP surgery concurrently as first line treatment in eyes with severe ocular surface inflammation.
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Affiliation(s)
- L Moyal
- Service d'ophtalmologie II, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France.
| | - R Adam
- Service d'ophtalmologie II, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - J Boumendil
- Service d'ophtalmologie IV, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - J Meney
- Service d'ophtalmologie IV, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - T Rodallec
- Service d'ophtalmologie II, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - J Akesbi
- Service d'ophtalmologie II, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - J-P Nordmann
- Service d'ophtalmologie II, centre hospitalier national des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
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Leleu I, Penaud B, Blumen-Ohana E, Rodallec T, Adam R, Laplace O, Akesbi J, Nordmann JP. [Late and sustained intraocular pressure elevation related to intravitreal anti-VEGF injections: Cases requiring filtering surgery (French translation of the article)]. J Fr Ophtalmol 2018; 41:789-801. [PMID: 30348599 DOI: 10.1016/j.jfo.2018.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 10/28/2022]
Abstract
We report cases of delayed, sustained elevated intraocular pressure (IOP) associated with repeated intravitreal anti-VEGF injections (IVI), which ultimately resulted in the need for filtering surgery. Two of the three cases demonstrated severe IOP elevation despite maximal medical treatment following unilateral IVI and required urgent filtering surgery. Optic nerve involvement was severe in all three cases. These intravitreal injections were performed for exudative age-related macular degeneration (AMD), and the patients did not show any sign of glaucoma or ocular hypertension prior to the initiation of treatment. Elevated IOP secondary to intravitreal steroids is a well-known side effect, as is immediate transient IOP elevation associated with anti-VEGF injection. Late, sustained IOP elevation after repeated injections of anti-VEGF, described approximately ten years ago, is often underestimated. Its incidence is estimated between 2.1% and 13% according to studies and increases with the number of IVI (cumulative effect). The pathophysiologic process is becoming increasingly understood, and several risk factors for this chronic IOP elevation have been identified. Most often, it is a moderate IOP elevation for which topical monotherapy is sufficient, or sometimes two, three or four medications or even selective laser trabeculoplasty (SLT). However, filtering surgery may rarely be required. Our findings illustrate a little-described phenomenon: a sudden, severe, late IOP elevation in response to anti-VEGF by an "overflow" effect, requiring urgent filtering surgery.
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Affiliation(s)
- I Leleu
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France.
| | - B Penaud
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - E Blumen-Ohana
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - T Rodallec
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - R Adam
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - O Laplace
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - J Akesbi
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - J-P Nordmann
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
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Leleu I, Penaud B, Blumen-Ohana E, Rodallec T, Adam R, Laplace O, Akesbi J, Nordmann JP. Late and sustained intraocular pressure elevation related to intravitreal anti-VEGF injections: Cases requiring filtering surgery. J Fr Ophtalmol 2018; 41:e329-e340. [PMID: 30197188 DOI: 10.1016/j.jfo.2018.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/17/2018] [Accepted: 07/24/2018] [Indexed: 01/13/2023]
Abstract
We report cases of delayed, sustained elevated intraocular pressure (IOP) associated with repeated intravitreal anti-VEGF injections (IVI), which ultimately resulted in the need for filtering surgery. Two of the three cases demonstrated severe IOP elevation despite maximal medical treatment following unilateral IVI and required urgent filtering surgery. Optic nerve involvement was severe in all three cases. These intravitreal injections were performed for exudative age-related macular degeneration (AMD), and the patients did not show any sign of glaucoma or ocular hypertension prior to the initiation of treatment. Elevated IOP secondary to intravitreal steroids is a well-known side effect, as is immediate transient IOP elevation associated with anti-VEGF injection. Late, sustained IOP elevation after repeated injections of anti-VEGF, described approximately ten years ago, is often underestimated. Its incidence is estimated between 2.1 % and 13 % according to studies and increases with the number of IVI (cumulative effect). The pathophysiologic process is becoming increasingly understood, and several risk factors for this chronic IOP elevation have been identified. Most often, it is a moderate IOP elevation for which topical monotherapy is sufficient, or sometimes two, three or four medications or even selective laser trabeculoplasty (SLT). However, filtering surgery may rarely be required. Our findings illustrate a little-described phenomenon: a sudden, severe, late IOP elevation in response to anti-VEGF by an "overflow" effect, requiring urgent filtering surgery.
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Affiliation(s)
- I Leleu
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France.
| | - B Penaud
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - E Blumen-Ohana
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - T Rodallec
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - R Adam
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - O Laplace
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - J Akesbi
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
| | - J-P Nordmann
- Centre hospitalier national d'ophtalmologie des 15-20, 28, rue de Charenton, 75012 Paris, France
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Golse N, El Bouyousfi A, Marques F, Bancel B, Mohkam K, Ducerf C, Merle P, Sebagh M, Castaing D, Sa Cunha A, Adam R, Cherqui D, Vibert E, Mabrut JY. Large hepatocellular carcinoma: Does fibrosis really impact prognosis after resection? J Visc Surg 2018. [DOI: 10.1016/j.jviscsurg.2017.10.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kumar N, Gupta R, Sayed S, Moloo Z, Adam R, Gunturu R, Devani S. Cytological diagnosis of cryptococcosis in a biliary specimen: Report of a rare case with brief review of literature. Cytopathology 2018; 30:249-252. [PMID: 30153349 DOI: 10.1111/cyt.12626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 08/11/2018] [Indexed: 11/30/2022]
Affiliation(s)
| | - Ruchika Gupta
- National Institute of Cancer Prevention and Research, Noida, India
| | - Shahin Sayed
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Zahir Moloo
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Rodney Adam
- Department of Microbiology, Aga Khan University Hospital, Nairobi, Kenya
| | - Revathi Gunturu
- Department of Microbiology, Aga Khan University Hospital, Nairobi, Kenya
| | - Smita Devani
- Department of Gastroenterology, Aga Khan University Hospital, Nairobi, Kenya
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