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Perri P, Sena G, Piro P, De Bartolo T, Galassi S, Costa D, Serra R. Onyx TMGel or Coil versus Hydrogel as Embolic Agents in Endovascular Applications: Review of the Literature and Case Series. Gels 2024; 10:312. [PMID: 38786229 PMCID: PMC11120993 DOI: 10.3390/gels10050312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
This review focuses on the use of conventional gel or coil and "new" generation hydrogel used as an embolic agent in endovascular applications. In general, embolic agents have deep or multidistrict vascular penetration properties as they ensure complete occlusion of vessels by exploiting the patient's coagulation system, which recognises them as substances foreign to the body, thus triggering the coagulation cascade. This is why they are widely used in the treatment of endovascular corrections (EV repair), arteriovenous malformations (AVM), endoleaks (E), visceral aneurysms or pseudo-aneurysms, and embolisation of pre-surgical or post-surgical (iatrogenic) lesions. Conventional gels such as Onyx or coils are now commercially available, both of which are frequently used in endovascular interventional procedures, as they are minimally invasive and have numerous advantages over conventional open repair (OR) surgery. Recently, these agents have been modified and optimised to develop new embolic substances in the form of hydrogels based on alginate, chitosan, fibroin and other polymers to ensure embolisation through phase transition phenomena. The main aim of this work was to expand on the data already known in the literature concerning the application of these devices in the endovascular field, focusing on the advantages, disadvantages and safety profiles of conventional and innovative embolic agents and also through some clinical cases reported. The clinical case series concerns the correction and exclusion of endoleak type I or type II appeared after an endovascular procedure of exclusion of aneurysmal abdominal aortic (EVAR) with a coil (coil penumbra released by a LANTERN microcatheter), the exclusion of renal arterial malformation (MAV) with a coil (penumbra coil released by a LANTERN microcatheter) and the correction of endoleak through the application of Onyx 18 in the arteries where sealing by the endoprosthesis was not guaranteed.
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Affiliation(s)
- Paolo Perri
- Department of Vascular and Endovascular Surgery, Annunziata Hospital, 1 Via Migliori, 87100 Cosenza, Italy; (P.P.); (P.P.)
| | - Giuseppe Sena
- Department of Vascular Surgery, “Pugliese-Ciaccio” Hospital, 88100 Catanzaro, Italy;
| | - Paolo Piro
- Department of Vascular and Endovascular Surgery, Annunziata Hospital, 1 Via Migliori, 87100 Cosenza, Italy; (P.P.); (P.P.)
| | - Tommaso De Bartolo
- Departement of Interventional Radiology, Annunziata Hospital, 1 Via Migliori, 87100 Cosenza, Italy; (T.D.B.); (S.G.)
| | - Stefania Galassi
- Departement of Interventional Radiology, Annunziata Hospital, 1 Via Migliori, 87100 Cosenza, Italy; (T.D.B.); (S.G.)
| | - Davide Costa
- Interuniversity Center of Phlebolymphology (CIFL), Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy;
| | - Raffaele Serra
- Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
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de Mestral C. Is it time to expand screening criteria for abdominal aortic aneurysms? J Vasc Surg 2024; 79:1068. [PMID: 38642969 DOI: 10.1016/j.jvs.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 04/22/2024]
Affiliation(s)
- Charles de Mestral
- Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Vascular Surgery, St. Michael's Hospital, Toronto, Ontario, Canada; Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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Vervoort D, Hirode G, Lindsay TF, Tam DY, Kapila V, de Mestral C. One-time screening for abdominal aortic aneurysm in Ontario, Canada: a model-based cost-utility analysis. CMAJ 2024; 196:E112-E120. [PMID: 38316457 PMCID: PMC10843437 DOI: 10.1503/cmaj.230913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Screening programs for abdominal aortic aneurysm (AAA) are not available in Canada. We sought to determine the effectiveness and costutility of AAA screening in Ontario. METHODS We compared one-time ultrasonography-based AAA screening for people aged 65 years to no screening using a fully probabilistic Markov model with a lifetime horizon. We estimated life-years, quality-adjusted life-years (QALYs), AAA-related deaths, number needed to screen to prevent 1 AAA-related death and costs (in Canadian dollars) from the perspective of the Ontario Ministry of Health. We retrieved model inputs from literature, Statistics Canada, and the Ontario Case Costing Initiative. RESULTS Screening reduced AAA-related deaths by 84.9% among males and 81.0% among females. Compared with no screening, screening resulted in 0.04 (18.96 v. 18.92) additional life-years and 0.04 (14.95 v. 14.91) additional QALYs at an incremental cost of $80 per person among males. Among females, screening resulted in 0.02 (21.25 v. 21.23) additional life-years and 0.01 (16.20 v. 16.19) additional QALYs at an incremental cost of $11 per person. At a willingness-to-pay of $50 000 per year, screening was cost-effective in 84% (males) and 90% (females) of model iterations. Screening was increasingly cost-effective with higher AAA prevalence. INTERPRETATION Screening for AAA among people aged 65 years in Ontario was associated with fewer AAA-related deaths and favourable cost-effectiveness. To maximize QALY gains per dollar spent and AAA-related deaths prevented, AAA screening programs should be designed to ensure that populations with high prevalence of AAA participate.
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Affiliation(s)
- Dominique Vervoort
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont
| | - Grishma Hirode
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont
| | - Thomas F Lindsay
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont
| | - Derrick Y Tam
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont
| | - Varun Kapila
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont
| | - Charles de Mestral
- Institute of Health Policy, Management and Evaluation (Vervoort, Tam, de Mestral), Division of Cardiac Surgery (Vervoort, Tam) and Institute of Medical Science (Hirode), University of Toronto; Toronto Centre for Liver Disease (Hirode), Toronto General Hospital, University Health Network; Division of Vascular Surgery, Department of Surgery (Lindsay), Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ont.; Division of Vascular Surgery (Kapila), William Osler Health System, Brampton, Ont.; Division of Vascular Surgery, Department of Surgery (de Mestral), St. Michael's Hospital, University of Toronto, Toronto, Ont.
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Crosier R, Lopez Laporte MA, Unni RR, Coutinho T. Female-Specific Considerations in Aortic Health and Disease. CJC Open 2024; 6:391-406. [PMID: 38487044 PMCID: PMC10935703 DOI: 10.1016/j.cjco.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/06/2023] [Indexed: 03/17/2024] Open
Abstract
The aorta plays a central role in the modulation of blood flow to supply end organs and to optimize the workload of the left ventricle. The constant interaction of the arterial wall with protective and deleterious circulating factors, and the cumulative exposure to ventriculoarterial pulsatile load, with its associated intimal-medial changes, are important players in the complex process of vascular aging. Vascular aging is also modulated by biomolecular processes such as oxidative stress, genomic instability, and cellular senescence. Concomitantly with well-established cardiometabolic and sex-specific risk factors and environmental stressors, arterial stiffness is associated with cardiovascular disease, which remains the leading cause of morbidity and mortality in women worldwide. Sexual dimorphisms in aortic health and disease are increasingly recognized and explain-at least in part-some of the observable sex differences in cardiovascular disease, which will be explored in this review. Specifically, we will discuss how biological sex affects arterial health and vascular aging and the implications this has for development of certain cardiovascular diseases uniquely or predominantly affecting women. We will then expand on sex differences in thoracic and abdominal aortic aneurysms, with special considerations for aortopathies in pregnancy.
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Affiliation(s)
- Rebecca Crosier
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | | | - Rudy R. Unni
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Thais Coutinho
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Cote CL, Jessula S, Kim Y, Cooper M, McDougall G, Casey P, Dua A, Lee MS, Smith M, Herman C. Trends in Incidence of Abdominal Aortic Aneurysm Rupture, Repair, and Mortality in Nova Scotia. Ann Vasc Surg 2023; 95:62-73. [PMID: 36509371 DOI: 10.1016/j.avsg.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND The purpose of this study was to examine sex-based trends in incidence of elective abdominal aortic aneurysm (AAA), ruptured AAA, ruptured AAA repair, and AAA-related mortality. METHODS A retrospective analysis of patients presenting with AAA from 2005 to 2015 was conducted. Rates of elective AAA repair, ruptured AAA, ruptured AAA repair, and mortality were obtained from linking provincial administrative data using medical services insurance billing number. The age-adjusted incidence of elective AAA repair, overall rate of ruptured AAA, ruptured AAA repair, and AAA-related mortality was calculated for each sex based on Canadian census estimates, adjusted to the Canadian standard population. Weighted linear regression was performed to analyze trends in incidence over time. RESULTS One thousand nine hundred eighty-six elective AAA repairs were identified, of which 1,098 were repaired open and 898 underwent endovascular abdominal aneurysm repair (EVAR). Five hundred and seventy ruptured AAAs were identified, of which 295 (52%) were repaired: 259 open and 36 EVAR. The proportion of ruptured AAA that was repaired did not change over time (P = 0.54). The proportion repairs performed using EVAR increased significantly in both elective (P < 0.001) and rupture repairs (P < 0.001). During the study period, 662 patients died of AAA-associated mortality. The average incidence of elective AAA repair in men was 29.3 (95% confidence interval (CI): 27.8 to 30.8) per 100,000 and decreased over time (P = 0.04), whereas the average incidence in women was 9.2 [8.3 to 10.0] and stable (P = 0.07). The incidence of open elective AAA repair was 10.5 [9.9-11.1] with a decreasing trend over time (P < 0.001) and EVAR was 9.0 (8.5-9.6) with an increasing trend over time (P < 0.001). A decreasing trend of overall ruptured AAA (5.4 [5.0-5.9], P < 0.001), ruptured AAA repair (2.9 [2.5-3.2], P = 0.02), and of AAA-related mortality (6.2 [5.8-6.8], P < 0.001) was found, with consistent trends in both sexes. The incidence of open ruptured AAA repair decreased over time (P = 0.001) whereas the incidence of ruptured EVAR remained stable (P = 0.23). CONCLUSIONS The incidence of elective AAA repair is decreasing in males but not females, whereas the incidence of rupture has decreased in both sexes. This has translated into reduced incidence of AAA-related mortality. Increased adoption of EVAR for ruptured AAA should continue these trends.
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Affiliation(s)
- Claudia L Cote
- Division of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Canada.
| | - Samuel Jessula
- Division of Vascular and Endovascular Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Young Kim
- Division of Vascular and Endovascular Surgery, Duke University, Durham, NC
| | - Matthew Cooper
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Garrett McDougall
- Department of Emergency Medicine, McMaster University, Hamilton, Canada
| | - Patrick Casey
- Division of Vascular Surgery, Department of Surgery, Dalhousie University, Halifax, Canada
| | - Anahita Dua
- Division of Vascular and Endovascular Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Min S Lee
- Division of Vascular Surgery, Department of Surgery, Dalhousie University, Halifax, Canada
| | - Matthew Smith
- Division of Vascular Surgery, Department of Surgery, Dalhousie University, Halifax, Canada
| | - Christine Herman
- Division of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Canada; Division of Vascular Surgery, Department of Surgery, Dalhousie University, Halifax, Canada
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Martelli E, Enea I, Zamboni M, Federici M, Bracale UM, Sangiorgi G, Martelli AR, Messina T, Settembrini AM. Focus on the Most Common Paucisymptomatic Vasculopathic Population, from Diagnosis to Secondary Prevention of Complications. Diagnostics (Basel) 2023; 13:2356. [PMID: 37510100 PMCID: PMC10377859 DOI: 10.3390/diagnostics13142356] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/02/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Middle-aged adults can start to be affected by some arterial diseases (ADs), such as abdominal aortic or popliteal artery aneurysms, lower extremity arterial disease, internal carotid, or renal artery or subclavian artery stenosis. These vasculopathies are often asymptomatic or paucisymptomatic before manifesting themselves with dramatic complications. Therefore, early detection of ADs is fundamental to reduce the risk of major adverse cardiovascular and limb events. Furthermore, ADs carry a high correlation with silent coronary artery disease (CAD). This study focuses on the most common ADs, in the attempt to summarize some key points which should selectively drive screening. Since the human and economic possibilities to instrumentally screen wide populations is not evident, deep knowledge of semeiotics and careful anamnesis must play a central role in our daily activity as physicians. The presence of some risk factors for atherosclerosis, or an already known history of CAD, can raise the clinical suspicion of ADs after a careful clinical history and a deep physical examination. The clinical suspicion must then be confirmed by a first-level ultrasound investigation and, if so, adequate treatments can be adopted to prevent dreadful complications.
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Affiliation(s)
- Eugenio Martelli
- Department of General and Specialist Surgery, Faculty of Pharmacy and Medicine, Sapienza University of Rome, 155 Viale del Policlinico, 00161 Rome, Italy
- Medicine and Surgery School of Medicine, Saint Camillus International University of Health Sciences, 8 Via di Sant'Alessandro, 00131 Rome, Italy
- Division of Vascular Surgery, Department of Cardiovascular Sciences, S. Anna and S. Sebastiano Hospital, Via F. Palasciano, 81100 Caserta, Italy
| | - Iolanda Enea
- Emergency Department, S. Anna and S. Sebastiano Hospital, Via F. Palasciano, 81100 Caserta, Italy
| | - Matilde Zamboni
- Division of Vascular Surgery, Saint Martin Hospital, 22 Viale Europa, 32100 Belluno, Italy
| | - Massimo Federici
- Department of Systems Medicine, School of Medicine and Surgery, University of Rome Tor Vergata, 1 Viale Montpellier, 00133 Rome, Italy
| | - Umberto M Bracale
- Division of Vascular Surgery, Federico II Polyclinic, Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 5 Via S. Pansini, 80131 Naples, Italy
| | - Giuseppe Sangiorgi
- Department of Biomedicine and Prevention, School of Medicine and Surgery, University of Rome Tor Vergata, 1 Viale Montpellier, 00133 Rome, Italy
| | - Allegra R Martelli
- Faculty-Medicine & Surgery, Campus Bio-Medico University of Rome, 21 Via À. del Portillo, 00128 Rome, Italy
| | - Teresa Messina
- Division of Anesthesia and Intensive Care of Organ Transplants, Umberto I Polyclinic University Hospital, 155 Viale del Policlinico, 00161 Rome, Italy
| | - Alberto M Settembrini
- Division of Vascular Surgery, Maggiore Polyclinic Hospital Ca' Granda IRCCS and Foundation, 35 Via Francesco Sforza, 20122 Milan, Italy
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Golledge J, Thanigaimani S, Powell JT, Tsao PS. Pathogenesis and management of abdominal aortic aneurysm. Eur Heart J 2023:ehad386. [PMID: 37387260 PMCID: PMC10393073 DOI: 10.1093/eurheartj/ehad386] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/16/2023] [Accepted: 05/29/2023] [Indexed: 07/01/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) causes ∼170 000 deaths annually worldwide. Most guidelines recommend asymptomatic small AAAs (30 to <50 mm in women; 30 to <55 mm in men) are monitored by imaging and large asymptomatic, symptomatic, and ruptured AAAs are considered for surgical repair. Advances in AAA repair techniques have occurred, but a remaining priority is therapies to limit AAA growth and rupture. This review outlines research on AAA pathogenesis and therapies to limit AAA growth. Genome-wide association studies have identified novel drug targets, e.g. interleukin-6 blockade. Mendelian randomization analyses suggest that treatments to reduce low-density lipoprotein cholesterol such as proprotein convertase subtilisin/kexin type 9 inhibitors and smoking reduction or cessation are also treatment targets. Thirteen placebo-controlled randomized trials have tested whether a range of antibiotics, blood pressure-lowering drugs, a mast cell stabilizer, an anti-platelet drug, or fenofibrate slow AAA growth. None of these trials have shown convincing evidence of drug efficacy and have been limited by small sample sizes, limited drug adherence, poor participant retention, and over-optimistic AAA growth reduction targets. Data from some large observational cohorts suggest that blood pressure reduction, particularly by angiotensin-converting enzyme inhibitors, could limit aneurysm rupture, but this has not been evaluated in randomized trials. Some observational studies suggest metformin may limit AAA growth, and this is currently being tested in randomized trials. In conclusion, no drug therapy has been shown to convincingly limit AAA growth in randomized controlled trials. Further large prospective studies on other targets are needed.
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Affiliation(s)
- Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Department of Vascular and Endovascular Surgery, Townsville University Hospital, 100 Angus Smith Drive, Douglas, QLD, Australia
| | - Shivshankar Thanigaimani
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
| | - Janet T Powell
- Department of Surgery & Cancer, Imperial College London, Fulham Palace Road, London, UK
| | - Phil S Tsao
- Department of Cardiovascular Medicine, Stanford University, 450 Serra Mall, Stanford, CA, USA
- VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, USA
- Stanford Cardiovascular Institute, Stanford University, 450 Serra Mall, Stanford, CA, USA
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Olmstead C, Wakabayashi AT, Freeman TR, Cejic SS. Abdominal aortic aneurysm screening in an academic family practice: Short-term impact of guideline changes. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2022; 68:899-904. [PMID: 36515055 PMCID: PMC9796976 DOI: 10.46747/cfp.6812899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To investigate abdominal aortic aneurysm (AAA) screening rates in the 6 months before and after the introduction of updated Canadian Task Force on Preventive Health Care (CTFPHC) guidelines to determine effects on practice patterns, as well as to determine whether certain patient characteristics impact AAA screening rates. DESIGN Retrospective chart review. SETTING Academic family health centre in London, Ont. PARTICIPANTS Male patients between the ages of 65 and 80. MAIN OUTCOME MEASURES Screening rates for AAA before and after the guideline update were compared using the normal approximation of the binomial distribution. Analysis of demographic characteristic effects on screening rates was completed with the Fisher exact test. Number of visits to the clinic with a primary care provider within the study period and imaging type were collected. RESULTS Of the 266 patients included in the study, 160 patients were eligible for screening at the start of the study period, 6 months before publication of the CTFPHC AAA guideline. Individuals eligible for screening visited the clinic an average (SD) of 2.44 (1.82) times in the 6 months before and 2.66 (1.99) times in the 6 months after. Overall, 69 individuals had AAA screening completed and 9 had a discussion of AAA screening without any imaging, for a total uptake rate of 88.5% for those who had screening recommended. The overall imaging rate was 48.9%. There was no statistically significant difference in screening rates between the time periods (P=.337) among those eligible for screening. For demographic characteristics for risk stratification, 7 individuals had a documented family history, of whom 5 had imaging of their abdominal aorta performed, plus 1 additional individual who had screening recommended but not completed. This was not statistically significant relative to the total population (P=.0598). Positive smoking status (active or ex-smoker) was more common, with 135 individuals having a relevant smoking history. Approximately half of these current and former smokers (68 individuals [50.4%]) had any sort of abdominal aortic imaging performed or recommended, which was not statistically significantly different compared with non-smokers (62 of 126 imaging performed or recommended, 49.2%; P=.9016). CONCLUSION Screening practices did not change appreciably with the introduction of the CTFPHC AAA screening guidelines. Further research is needed to improve AAA screening rates. It is worth exploring electronic medical record-based reminders, nursing staff involvement in screening, screening programs via public health, and point-of-care ultrasound screening in a primary care setting.
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Affiliation(s)
- Craig Olmstead
- Adjunct Professor in the Department of Family Medicine at Western University in London, Ont.,Correspondence Dr Craig Olmstead; e-mail
| | | | - Thomas R Freeman
- Professor Emeritus in the Centre for Studies in Family Medicine in the Department of Family Medicine at Western University
| | - Sonny S Cejic
- Associate Professor in the Department of Family Medicine at Western University
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Wu Y, Jiang D, Zhang H, Yin F, Guo P, Zhang X, Bian C, Chen C, Li S, Yin Y, Böckler D, Zhang J, Han Y. N1-Methyladenosine (m1A) Regulation Associated With the Pathogenesis of Abdominal Aortic Aneurysm Through YTHDF3 Modulating Macrophage Polarization. Front Cardiovasc Med 2022; 9:883155. [PMID: 35620523 PMCID: PMC9127271 DOI: 10.3389/fcvm.2022.883155] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/20/2022] [Indexed: 11/30/2022] Open
Abstract
Objectives This study aimed to identify key AAA-related m1A RNA methylation regulators and their association with immune infiltration in AAA. Furthermore, we aimed to explore the mechanism that m1A regulators modulate the functions of certain immune cells as well as the downstream target genes, participating in the progression of AAA. Methods Based on the gene expression profiles of the GSE47472 and GSE98278 datasets, differential expression analysis focusing on m1A regulators was performed on the combined dataset to identify differentially expressed m1A regulatory genes (DEMRGs). Additionally, CIBERSORT tool was utilized in the analysis of the immune infiltration landscape and its correlation with DEMRGs. Moreover, we validated the expression levels of DEMRGs in human AAA tissues by real-time quantitative PCR (RT-qPCR). Immunofluorescence (IF) staining was also applied in the validation of cellular localization of YTHDF3 in AAA tissues. Furthermore, we established LPS/IFN-γ induced M1 macrophages and ythdf3 knockdown macrophages in vitro, to explore the relationship between YTHDF3 and macrophage polarization. At last, RNA immunoprecipitation-sequencing (RIP-Seq) combined with PPI network analysis was used to predict the target genes of YTHDF3 in AAA progression. Results Eight DEMRGs were identified in our study, including YTHDC1, YTHDF1-3, RRP8, TRMT61A as up-regulated genes and FTO, ALKBH1 as down-regulated genes. The immune infiltration analysis showed these DEMRGs were positively correlated with activated mast cells, plasma cells and M1 macrophages in AAA. RT-qPCR analysis also verified the up-regulated expression levels of YTHDC1, YTHDF1, and YTHDF3 in human AAA tissues. Besides, IF staining result in AAA adventitia indicated the localization of YTHDF3 in macrophages. Moreover, our in-vitro experiments found that the knockdown of ythdf3 in M0 macrophages inhibits macrophage M1 polarization but promotes macrophage M2 polarization. Eventually, 30 key AAA-related target genes of YTHDF3 were predicted, including CD44, mTOR, ITGB1, STAT3, etc. Conclusion Our study reveals that m1A regulation is significantly associated with the pathogenesis of human AAA. The m1A “reader,” YTHDF3, may participate in the modulating of macrophage polarization that promotes aortic inflammation, and influence AAA progression by regulating the expression of its target genes.
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Affiliation(s)
- Yihao Wu
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Deying Jiang
- Department of Vascular Surgery, Dalian Municipal Central Hospital, Dalian, China
| | - Hao Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Fanxing Yin
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Panpan Guo
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xiaoxu Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Ce Bian
- Department of Cardiovascular Surgery, The General Hospital of the PLA Rocket Force, Beijing, China
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, St Lucia, Brisbane, QLD, Australia
| | - Shuixin Li
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Yuhan Yin
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Dittmar Böckler
- Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Jian Zhang
- Department of Vascular Surgery, The First Hospital of China Medical University, Shenyang, China
- *Correspondence: Jian Zhang
| | - Yanshuo Han
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
- Yanshuo Han ; orcid.org/0000-0002-4897-2998
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Kessler V, Klopf J, Eilenberg W, Neumayer C, Brostjan C. AAA Revisited: A Comprehensive Review of Risk Factors, Management, and Hallmarks of Pathogenesis. Biomedicines 2022; 10:94. [PMID: 35052774 PMCID: PMC8773452 DOI: 10.3390/biomedicines10010094] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/30/2021] [Indexed: 01/27/2023] Open
Abstract
Despite declining incidence and mortality rates in many countries, the abdominal aortic aneurysm (AAA) continues to represent a life-threatening cardiovascular condition with an overall prevalence of about 2-3% in the industrialized world. While the risk of AAA development is considerably higher for men of advanced age with a history of smoking, screening programs serve to detect the often asymptomatic condition and prevent aortic rupture with an associated death rate of up to 80%. This review summarizes the current knowledge on identified risk factors, the multifactorial process of pathogenesis, as well as the latest advances in medical treatment and surgical repair to provide a perspective for AAA management.
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Affiliation(s)
| | | | | | | | - Christine Brostjan
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna, Vienna General Hospital, 1090 Vienna, Austria; (V.K.); (J.K.); (W.E.); (C.N.)
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