1
|
Tikhvinskii D, Kuianova J, Kislitsin D, Orlov K, Gorbatykh A, Parshin D. Numerical Assessment of the Risk of Abnormal Endothelialization for Diverter Devices: Clinical Data Driven Numerical Study. J Pers Med 2022; 12:652. [PMID: 35455768 PMCID: PMC9025183 DOI: 10.3390/jpm12040652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 12/07/2022] Open
Abstract
Numerical modeling is an effective tool for preoperative planning. The present work is devoted to a retrospective analysis of neurosurgical treatments for the occlusion of cerebral aneurysms using flow-diverters and hemodynamic factors affecting stent endothelization. Several different geometric approaches have been considered for virtual flow-diverters deployment. A comparative analysis of hemodynamic parameters as a result of computational modeling has been carried out basing on the four clinical cases: one successful treatment, one with no occlusion and two with in stent stenosis. For the first time, a quantitative assessment of both: the limiting magnitude of shear stresses that are necessary for the occurrence of in stent stenosis (MaxWSS > 1.23) and for conditions in which endothelialization is insufficiently active and occlusion of the cervical part of the aneurysm does not occur (MaxWSS < 1.68)—has been statistacally proven (p < 0.01).
Collapse
Affiliation(s)
- Denis Tikhvinskii
- Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentiev Avenue 15, 630090 Novosibirsk, Russia; (D.T.); (J.K.)
| | - Julia Kuianova
- Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentiev Avenue 15, 630090 Novosibirsk, Russia; (D.T.); (J.K.)
| | - Dmitrii Kislitsin
- Neurosurgery Department, Meshalkin National Medical Research Center, 630055 Novosibirsk, Russia; (D.K.); (K.O.); (A.G.)
| | - Kirill Orlov
- Neurosurgery Department, Meshalkin National Medical Research Center, 630055 Novosibirsk, Russia; (D.K.); (K.O.); (A.G.)
| | - Anton Gorbatykh
- Neurosurgery Department, Meshalkin National Medical Research Center, 630055 Novosibirsk, Russia; (D.K.); (K.O.); (A.G.)
| | - Daniil Parshin
- Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentiev Avenue 15, 630090 Novosibirsk, Russia; (D.T.); (J.K.)
| |
Collapse
|
2
|
Virmani R, Sato Y, Sakamoto A, Romero ME, Butany J. Aneurysms of the aorta: ascending, thoracic, and abdominal and their management. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
3
|
McGinigle KL, Browder SE, Strassle PD, Shalhub S, Harris LM, Minc SD. Sex-related disparities in intervention rates and type of intervention in patients with aortic and peripheral arterial diseases in the National Inpatient Sample Database. J Vasc Surg 2021; 73:2081-2089.e7. [PMID: 33301865 PMCID: PMC9945691 DOI: 10.1016/j.jvs.2020.11.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The first annual Women's Vascular Summit highlighted sex- and gender-related knowledge gaps in vascular disease diagnosis and treatment. This finding suggests an opportunity for further research to improve care and outcomes in people who identify as women, specifically. The purpose of this study was to a large national dataset to identify all operations performed for abdominal aortic aneurysm (AAA), carotid artery stenosis (CAS), and peripheral arterial disease (PAD) in the United States, and to provide data on sex-related disparities in treatment. METHODS All hospitalizations of adult patients (≥18 years old) diagnosed with AAA, CAS, or PAD who underwent vascular surgery from 2000 to 2016 were identified in the Healthcare Cost and Utilization Project National Inpatient Sample. Sex-stratified U.S. Census data and sex-specific population disease prevalence estimates from the National Institute of Health and Agency for Healthcare Research and Quality were used to calculate the number of U.S. adults with AAA, CAS, and PAD. Sex-stratified rates of surgery and incidence rate ratios were estimated using Poisson regression. Among those undergoing surgery, multivariable logistic regression was used to assess differences in endovascular vs open approach. RESULTS Over 16 years, there were 1,021,684 hospitalizations for vascular surgery: 13% AAA (21% female, 79% male), 40% CAS (42% female, 58% male), and 47% PAD (42% female, 58% male). Females were older than males at time of surgery (median age, 71.3 years vs 69.7 years) and less likely to have private insurance (18% vs 23%); minimal differences were seen across race/ethnicity, comorbidities, and hospital characteristics. After accounting for disease prevalence, females were still 25% less likely to undergo surgery for AAA and 30% less likely to undergo surgery for PAD compared with males with the same disease. These results were consistent over time. After adjustment, females, compared with males, were less likely to receive an endovascular procedure compared with open for AAA or CAS, and more likely to receive one for PAD. CONCLUSIONS From 2000 to 2016 in the United States, females were less likely to undergo intervention for AAA and PAD than males. This finding is particularly significant for PAD, because the prevalence is the same for both sexes, indicating that females are likely undertreated for PAD. Additionally, females were less likely to undergo endovascular surgery for AAA and more likely to undergo endovascular surgery for PAD than males. These findings suggest that improvement in AAA and PAD identification and management in females may improve outcomes.
Collapse
Affiliation(s)
- Katharine L McGinigle
- Division of Vascular Surgery, Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC.
| | - Sydney E Browder
- Division of Vascular Surgery, Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Paula D Strassle
- Division of Vascular Surgery, Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Sherene Shalhub
- Division of Vascular Surgery, Department of Surgery, University of Washington, Seattle, Wash
| | - Linda M Harris
- Division of Vascular Surgery, Department of Surgery, University at Buffalo, Buffalo, NY
| | - Samantha D Minc
- Division of Vascular Surgery, Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, WV
| |
Collapse
|
4
|
Rozental O, Ma X, Weinberg R, Gadalla F, Essien UR, White RS. Disparities in mortality after abdominal aortic aneurysm repair are linked to insurance status. J Vasc Surg 2020; 72:1691-1700.e5. [PMID: 32173191 DOI: 10.1016/j.jvs.2020.01.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 01/11/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The objective of this study was to determine differences in mortality after abdominal aortic aneurysm (AAA) repair based on insurance type. METHODS In this retrospective cohort study, data from all-payer patients in nonpsychiatric hospitals in New York, Maryland, Florida, Kentucky, and California from January 2007 to December 2014 (excluding California, ending December 2011) were extracted from the State Inpatient Databases, Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality. There were 90,102 patients ≥18 years old with available insurance data who underwent open AAA repair or endovascular aneurysm repair (EVAR) identified using International Classification of Diseases, Ninth Revision, Clinical Modification procedure codes 3844, 3925, and 3971. EVAR patients were identified using the procedure code 3971, and the remainder of cases were categorized as open. Patients were divided into cohorts by insurance type as Medicare, Medicaid, uninsured (self-pay/no charge), other, or private insurance. Patients were further stratified for subgroup analyses by procedure type. Unadjusted rates of in-hospital mortality, the primary outcome, as well as secondary outcomes, such as surgical urgency, 30-day and 90-day readmissions, length of stay, total charges, and postoperative complications, were examined by insurance type. Adjusted odds ratios (ORs) for in-hospital mortality were calculated using multivariate logistic regression models fitted to the data. The multivariate models included patient-, surgical-, and hospital-specific factors with bivariate baseline testing suggestive of association with insurance status in addition to variables that were selected a priori. RESULTS Medicaid and uninsured patients had the highest rates of mortality relative to private insurance beneficiaries in all cohorts. Medicaid patients incurred a 47% increase in the odds of mortality, the highest among the insured, after all AAA repairs (OR, 1.47; 95% confidence interval [CI], 1.23-1.76), whereas uninsured patients experienced a 102% increase in the odds of mortality (OR, 2.02; 95% CI, 1.54-2.67). Subgroup analyses for open AAA repair and EVAR corroborated that Medicaid insurance (open repair OR, 1.37 [95% CI, 1.14-1.64]; EVAR OR, 2.06 [95% CI, 1.40-3.04]) and uninsured status (open repair OR, 1.85 [95% CI, 1.35-2.54]; EVAR OR, 2.96 [95% CI, 1.82-4.81]) were associated with the highest odds of mortality after both procedures separately. CONCLUSIONS This study demonstrates that Medicaid insurance and uninsured status are associated with higher unadjusted rates and adjusted ORs for in-hospital mortality after AAA repair relative to private insurance status. Primary payer status therefore serves as an independent predictor of the risk of death subsequent to AAA surgical interventions.
Collapse
Affiliation(s)
- Olga Rozental
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY; Department of Anesthesiology, NewYork-Presbyterian Hospital, New York, NY
| | - Xiaoyue Ma
- Department of Healthcare Policy and Research, Weill Cornell Medicine, New York, NY
| | - Roniel Weinberg
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY; Department of Anesthesiology, NewYork-Presbyterian Hospital, New York, NY
| | - Farida Gadalla
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY; Department of Anesthesiology, NewYork-Presbyterian Hospital, New York, NY
| | - Utibe R Essien
- Division of General Internal Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa; Center for Healthy Equity Research and Promotion, VA Pittsburgh Healthcare System, Pittsburgh, Pa
| | - Robert S White
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY; Department of Anesthesiology, NewYork-Presbyterian Hospital, New York, NY.
| |
Collapse
|
5
|
Handa N, Mochizuki S, Fujiwara Y, Shimokawa M, Wakao R, Arai H. Future development of artificial organs related with cutting edge emerging technology and their regulatory assessment: PMDA's perspective. J Artif Organs 2020; 23:203-206. [PMID: 32112156 DOI: 10.1007/s10047-020-01161-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 02/05/2020] [Indexed: 12/21/2022]
Abstract
Future development of innovative artificial organs is closely related with cutting edge emerging technology. These technologies include brain machine or computer interface, organs made by three dimensional bioprinting, organs designed from induced-pluripotent stem cell for personalized tissue or organ, and xenotransplantation. To bridge the gap between scientific innovation and regulatory product review, Pharmaceuticals and Medical Devices Agency of Japan (PMDA) started the science board to discuss about the new scientific topics regarding medical products including medical device and regenerative products with external experts since 2012. Topics which PMDA raised for science board included cellular and tissue-based products from iPS cells, artificial intelligence and genome editing technology. In addition, PMDA started the horizon scanning to identify a new cutting edge technology which could potentially lead to innovative health technology or product, which has a strong impact on clinical medicine. Although the effectiveness and safety of the medical products must be reasonably assured before clinical use, PMDA introduced Sakigake review assignment (a review partner of device development) and conditional approval system to balance between pre-market and post-market evaluation.
Collapse
Affiliation(s)
- Nobuhiro Handa
- Office of Medical Device, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan. .,Medical Device Unit, Pharmaceuticals and Medical Devices Agency, 3-3-2, Shin-Kasumigaseki Building 11F, Kasumigaseki, Chiyoda-ku, Tokyo, 100-0013, Japan.
| | - Shuichi Mochizuki
- Office of Medical Device, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan
| | - Yasuhiro Fujiwara
- Office of Regenerative Medicine, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan
| | - Masafumi Shimokawa
- Regulatory Science Center, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan
| | - Rika Wakao
- Regulatory Science Center, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan
| | - Hiroyuki Arai
- Regulatory Science Center, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan
| |
Collapse
|
6
|
Kawamata H, Tajima H, Ueda T, Saito H, Yasui D, Kaneshiro T, Takenoshita N, Mizushima S, Mine T, Kurita J, Ishii Y, Morota T, Nitta T, Maruyama Y, Imura H, Nishina D, Fujii M, Bessho R. Long-term outcomes of endovascular aortic aneurysm repair with the Zenith AAA endovascular graft: a single-center study. Jpn J Radiol 2019; 38:77-84. [DOI: 10.1007/s11604-019-00892-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/14/2019] [Indexed: 11/24/2022]
|
7
|
Perlstein MD, Gupta S, Ma X, Rong LQ, Askin G, White RS. Abdominal Aortic Aneurysm Repair Readmissions and Disparities of Socioeconomic Status: A Multistate Analysis, 2007-2014. J Cardiothorac Vasc Anesth 2019; 33:2737-2745. [DOI: 10.1053/j.jvca.2019.03.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 01/14/2023]
|
8
|
Posso M, Quintana MJ, Bellmunt S, Martínez García L, Escudero JR, Viteri-García A, Valli C, Bonfill X. GRADE-Based Recommendations for Surgical Repair of Nonruptured Abdominal Aortic Aneurysm. Angiology 2019; 70:701-710. [PMID: 30961349 DOI: 10.1177/0003319719838892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The objective of this study was to provide evidence-based recommendations for endovascular aneurysm repair (EVAR) versus open surgical repair (OSR) for patients with a nonruptured abdominal aortic aneurysm (AAA). We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement and adhered to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework. Both low- and high surgical risk patients treated with EVAR showed decreased 30-day mortality, but the low-risk group had no differences in 4-year mortality. Compared with friendly anatomy, patients with hostile anatomy had an increased risk of type I endoleak. Young patients may prefer OSR. Endovascular aneurysm repair was not cost-effective in Europe. Four conditional recommendations were formulated: (1) OSR for low-risk patients up to 80 years old, (2) EVAR for low-risk patients older than 80 years, (3) EVAR for high-risk patients as long as is anatomically feasible, and (4) OSR in patients in whom it is not anatomically feasible to perform EVAR. Based on GRADE criteria, either OSR or EVAR can be suggested to patients with nonruptured AAA taking into account their surgical risk, hostile anatomy, and age. Given the weakness of the recommendations, personal preferences are determinant.
Collapse
Affiliation(s)
- Margarita Posso
- 1 Department of Clinical Epidemiology and Public Health, University Hospital de la Santa Creu i Sant Pau IIB Sant Pau, Barcelona, Spain.,2 Iberoamerican Cochrane Centre, IIB Sant Pau, Barcelona, Spain
| | - M Jesús Quintana
- 1 Department of Clinical Epidemiology and Public Health, University Hospital de la Santa Creu i Sant Pau IIB Sant Pau, Barcelona, Spain.,3 CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Sergi Bellmunt
- 4 Department of Angiology, Vascular and Endovascular Surgery, Vall d'Hebron University Hospital, Barcelona, Spain.,5 Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
| | | | - José R Escudero
- 6 Joint Service of Angiology, Vascular and Endovascular Surgery, Sant Pau-Dos de Mayo Hospital, Barcelona, Spain.,7 Autonomous University of Barcelona, Barcelona, Spain.,8 CIBER of Cardiovascular Diseases (CIBERCV), Madrid, Spain
| | - Andrés Viteri-García
- 9 Faculty of Health Sciences "Eugenio Espejo," Clinical Epidemiology and Public Health Research Centre (CISPEC), Universidad UTE, Quito, Ecuador
| | - Claudia Valli
- 2 Iberoamerican Cochrane Centre, IIB Sant Pau, Barcelona, Spain
| | - Xavier Bonfill
- 1 Department of Clinical Epidemiology and Public Health, University Hospital de la Santa Creu i Sant Pau IIB Sant Pau, Barcelona, Spain.,2 Iberoamerican Cochrane Centre, IIB Sant Pau, Barcelona, Spain.,3 CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,7 Autonomous University of Barcelona, Barcelona, Spain
| |
Collapse
|
9
|
Sachdev U. Invited commentary. J Vasc Surg 2018; 68:80S-81S. [PMID: 30470361 DOI: 10.1016/j.jvs.2017.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 11/02/2017] [Indexed: 11/25/2022]
|