1
|
Gensemer C, Beck T, Guo L, Petrucci T, Morningstar J, Kornblau I, Byerly K, Biggs R, Weintraub A, Moore K, Koren N, Daylor V, Hastings C, Oberlies E, Zientara ER, Devey E, Dooley S, Stayer K, Fenner R, Singleton K, Luzbetak S, Bear D, Byrd R, Weninger J, Bistran E, Beeson G, Kerns J, Griggs M, Griggs C, Osterhaus M, Fleck E, Schnaudigel J, Butler S, Severance S, Kendall W, Delaney JR, Judge DP, Chen P, Yao H, Guz J, Awgulewitsch A, Kautz SA, Mukherjee R, Price R, Henderson F, Shapiro S, Francomano CA, Kovacic JC, Lavallee M, Patel S, Berrandou TE, Slaugenhaupt SA, Milan D, Kontorovich AR, Bouatia-Naji N, Norris RA. Variants in the Kallikrein Gene Family and Hypermobile Ehlers-Danlos Syndrome. RESEARCH SQUARE 2024:rs.3.rs-4547888. [PMID: 38947032 PMCID: PMC11213194 DOI: 10.21203/rs.3.rs-4547888/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Hypermobile Ehlers-Danlos syndrome (hEDS) is a common heritable connective tissue disorder that lacks a known genetic etiology. To identify genetic contributions to hEDS, whole exome sequencing was performed on families and a cohort of sporadic hEDS patients. A missense variant in Kallikrein-15 (KLK15 p. Gly226Asp), segregated with disease in two families and genetic burden analyses of 197 sporadic hEDS patients revealed enrichment of variants within the Kallikrein gene family. To validate pathogenicity, the variant identified in familial studies was used to generate knock-in mice. Consistent with our clinical cohort, Klk15 G224D/+ mice displayed structural and functional connective tissue defects within multiple organ systems. These findings support Kallikrein gene variants in the pathogenesis of hEDS and represent an important step towards earlier diagnosis and better clinical outcomes.
Collapse
|
2
|
Pedersen MW, Duch K, Lindgren FL, Lundgren NLO, Tayal B, Hagendorff A, Jensen GB, Biering-Sørensen T, Schnohr P, Møgelvang R, Høst N, Kragholm K, Andersen NH, Søgaard P. Aortic Root Dimension Using Transthoracic Echocardiography: Results from the Copenhagen City Heart Study. Am J Cardiol 2024; 218:86-93. [PMID: 38452843 DOI: 10.1016/j.amjcard.2024.02.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/29/2024] [Accepted: 02/23/2024] [Indexed: 03/09/2024]
Abstract
Findings regarding the relation between aortic size and risk factors are heterogeneous. This study aimed to generate new insights from a population-based adult cohort on aortic root dimensions and their association with age, anthropometric measures, and cardiac risk factors and evaluate the incidence of acute aortic events. Participants from the fifth examination round of the Copenhagen City Heart study (aged 20 to 98 years) with applicable echocardiograms and no history of aortic disease or valve surgery were included. Aorta diameter was assessed at the annulus, sinus of Valsalva, sinotubular junction, and the tubular part of the ascending aorta. The study population comprised 1,796 men and 2,316 women; mean age: 56.4 ± 17.0 and 56.9 ± 18.1 years, respectively. Men had larger aortic root diameters than women regardless of height indexing (p <0.01). Age, height, weight, systolic and diastolic blood pressure, mean arterial pressure, pulse pressure, hypertension, diabetes, ischemic heart disease, and smoking were positively correlated with aortic sinus diameter in the crude and gender-adjusted analyses. However, after full adjustment, only height, weight, and diastolic blood pressure remained significantly positively correlated with aortic sinus diameter (p <0.001). For systolic blood pressure and pulse pressure, the correlation was inverse (p <0.001). During follow-up (median 5.4 [quartile 1 to quartile 3 4.5 to 6.3] years), the incidence rate of first-time acute aortic events was 13.6 (confidence interval 4.4 to 42.2) per 100,000 person-years. In conclusion, beyond anthropometric measures, age, and gender, diastolic blood pressure was the only cardiac risk factor that was independently correlated with aortic root dimensions. The number of aortic events during follow-up was low.
Collapse
Affiliation(s)
- Maria W Pedersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.
| | - Kirsten Duch
- Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
| | - Filip L Lindgren
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Nils L O Lundgren
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Bhupendar Tayal
- Harrington Heart and Vascular Institute, University Hospitals, Cleveland, Ohio
| | | | - Gorm B Jensen
- The Copenhagen City Heart Study, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Tor Biering-Sørensen
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Cardiovascular Non-invasive Imaging Research Laboratory, Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte, Denmark; Steno Diabetes Center Copenhagen, Herlev, Denmark; Department of Cardiology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Peter Schnohr
- The Copenhagen City Heart Study, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Rasmus Møgelvang
- The Copenhagen City Heart Study, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark; Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nis Høst
- Department of Cardiology, Nordsjællands Hospital, Denmark
| | - Kristian Kragholm
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Unit of Clinical Biostatistics and Epidemiology, Aalborg University Hospital, Aalborg, Denmark
| | - Niels H Andersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Peter Søgaard
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| |
Collapse
|
3
|
Katsarou M, Mandigers TJ, Berczeli M, Mujeeb Zubair M, Belvroy VM, Bissacco D, van Herwaarden JA, Trimarchi S, Bismuth J. Sex-Specific Morphometric Analysis of Ascending Aorta and Aortic Arch for Planning Thoracic Endovascular Aortic Repair: A Retrospective Cohort Study. J Endovasc Ther 2023:15266028231210228. [PMID: 37936418 DOI: 10.1177/15266028231210228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
OBJECTIVE In many studies on aortic disease, women are underrepresented. The present study aims to assess sex-specific morphometric differences and gain more insight into endovascular treatment of the ascending aorta (AA) and arch. METHODS Electrocardiogram-gated cardiac computed tomography scans of 116 consecutive patients who were evaluated for transcatheter aortic valve replacement were retrospectively reviewed. Measurements of the AA and aortic arch were made in multiplanar views, perpendicular to the semi-automatic centerline. Multiple linear regression analysis was performed to identify predictors affecting AA and aortic arch diameter in men and women. Propensity score matching was used to investigate whether sex influences aortic morphology. RESULTS In both sexes, body surface area (BSA) was identified as a positive predictor and diabetes as a negative predictor for aortic diameters. In men, age was identified as a positive predictor and smoking as a negative predictor for aortic diameters. Propensity score matching identified 40 pairs. Systolic and diastolic mean diameters and AA length were significantly wider in men. On average, male aortas were 7.4% wider than female aortas, both in systole and diastole. CONCLUSIONS The present analysis demonstrates that, in women, increased BSA is associated with increased aortic arch diameters, while diabetes is associated with decreased AA and arch diameters. In men, increased BSA and age are associated with increased AA and arch diameters, while smoking and diabetes are associated with decreased AA and arch diameters. Men were confirmed to have 7.4% greater AA and arch diameters than women. CLINICAL IMPACT Men had 7.4% greater ascending aorta and arch diameters than women in a retrospective cohort, gated computed tomography-based study of 116 patients. Sex-specific differences in ascending aortic and arch size should be considered by aortic endovascular device manufacturers and physicians when developing ascending and arch endografts and planning aortic interventions.
Collapse
Affiliation(s)
- Maria Katsarou
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
- Section of Vascular Surgery, Cardio Thoracic Vascular Department, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Milan, Italy
| | - Tim J Mandigers
- Section of Vascular Surgery, Cardio Thoracic Vascular Department, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Milan, Italy
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marton Berczeli
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
- Department of Vascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - M Mujeeb Zubair
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
- Division of Cardiothoracic Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Viony M Belvroy
- Houston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
- Department of Vascular Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Daniele Bissacco
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Joost A van Herwaarden
- Department of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Santi Trimarchi
- Section of Vascular Surgery, Cardio Thoracic Vascular Department, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Jean Bismuth
- Division of Vascular Surgery, LSU School of Medicine, New Orleans, LA, USA
| |
Collapse
|
4
|
Elefteriades JA. Aortic Root Diameter in Elite Athletes. Can J Cardiol 2023; 39:898-900. [PMID: 36963721 DOI: 10.1016/j.cjca.2023.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023] Open
|
5
|
Ban E, Kalogerakos PD, Khosravi R, Ziganshin BA, Ellauzi H, Ramachandra AB, Zafar MA, Humphrey JD, Elefteriades JA. Extended law of laplace for measurement of the cloverleaf anatomy of the aortic root. Int J Cardiovasc Imaging 2023; 39:1345-1356. [PMID: 37046157 PMCID: PMC10250276 DOI: 10.1007/s10554-023-02847-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/27/2023] [Indexed: 04/14/2023]
Abstract
The cross-sectional shape of the aortic root is cloverleaf, not circular, raising controversy regarding how best to measure its radiographic "diameter" for aortic event prediction. We mathematically extended the law of Laplace to estimate aortic wall stress within this cloverleaf region, simultaneously identifying a new metric of aortic root dimension that can be applied to clinical measurement of the aortic root and sinuses of Valsalva on clinical computerized tomographic scans. Enforcing equilibrium between blood pressure and wall stress, finite element computations were performed to evaluate the mathematical derivation. The resulting Laplace diameter was compared with existing methods of aortic root measurement across four patient groups: non-syndromic aneurysm, bicuspid aortic valve, Marfan syndrome, and non-dilated root patients (total 106 patients, 62 M, 44 F). (1) Wall stress: Mean wall stress at the depth of the sinuses followed this equation: Wall stress = BP × Circumscribing circle diameter/(2 × Aortic wall thickness). Therefore, the diameter of the circle enclosing the root cloverleaf, that is, twice the distance between the center, where the sinus-to-commissure lines coincide, and the depth of the sinuses, may replace diameter in the Laplace relation for a cloverleaf cross-section (or any shaped cross-section with two or more planes of symmetry). This mathematically derived result was verified by computational finite element analyses. (2) Diameters: CT scan measurements showed a significant difference between this new metric, the Laplace diameter, and the sinus-to-commissure, mid-sinus-to-mid-sinus, and coronal measurements in all four groups (p-value < 0.05). The average Laplace diameter measurements differed significantly from the other measurements in all patient groups. Among the various possible measurements within the aortic root, the diameter of the circumscribing circle, enclosing the cloverleaf, represents the diameter most closely related to wall stress. This diameter is larger than the other measurements, indicating an underestimation of wall stress by prior measurements, and otherwise provides an unbiased, convenient, consistent, physics-based measurement for clinical use. "Diameter" applies to circles. Our mathematical derivation of an extension of the law of Laplace, from circular to cloverleaf cross-sectional geometries of the aortic root, has implications for measurement of aortic root "diameter." The suggested method is as follows: (1) the "center" of the aortic root is identified by drawing three sinus-to-commissure lines. The intersection of these three lines identifies the "center" of the cloverleaf. (2) The largest radius from this center point to any of the sinuses is identified as the "radius" of the aortic root. (3) This radius is doubled to give the "diameter" of the aortic root. We find that this diameter best corresponds to maximal wall stress in the aortic root. Please note that this diameter defines the smallest circle that completely encloses the cloverleaf shape, touching the depths of all three sinuses.
Collapse
Affiliation(s)
- Ehsan Ban
- Department of Biomedical Engineering, Yale University, New Haven, USA
| | | | - Ramak Khosravi
- Department of Biomedical Engineering, Yale University, New Haven, USA
| | - Bulat A Ziganshin
- Aortic Institute, Yale School of Medicine, CB-3, 789 Howard Ave., New Haven, CT, 06510, USA
| | - Hesham Ellauzi
- Aortic Institute, Yale School of Medicine, CB-3, 789 Howard Ave., New Haven, CT, 06510, USA
| | | | - Mohammad A Zafar
- Aortic Institute, Yale School of Medicine, CB-3, 789 Howard Ave., New Haven, CT, 06510, USA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, USA
| | - John A Elefteriades
- Aortic Institute, Yale School of Medicine, CB-3, 789 Howard Ave., New Haven, CT, 06510, USA.
| |
Collapse
|
6
|
Morello F, Bima P, Castelli M, Nazerian P. Acute aortic syndromes: An internist's guide to the galaxy. Eur J Intern Med 2022; 106:45-53. [PMID: 36229285 DOI: 10.1016/j.ejim.2022.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/05/2022] [Accepted: 10/05/2022] [Indexed: 11/03/2022]
Abstract
Acute aortic syndromes (AASs) are severe conditions defined by dissection, hemorrhage, ulceration or rupture of the thoracic aorta. AASs share etiological and pathophysiological features, including long-term aortic tissue degeneration and mechanisms of acute aortic damage. The clinical signs and symptoms of AASs are unspecific and heterogeneous, requiring large differential diagnosis. When evaluating a patient with AAS-compatible symptoms, physicians need to integrate clinical probability assessment, bedside imaging techniques such as point-of-care ultrasound, and blood test results such as d-dimer. The natural history of AASs is dominated by engagement of ischemic, coagulative and inflammatory pathways at large, causing multiorgan damage. Medical treatment, multiorgan monitoring and outcome prognostication are therefore paramount, with internal medicine playing a key role in non-surgical management of AASs.
Collapse
Affiliation(s)
- Fulvio Morello
- S.C. Medicina d'Urgenza U (MECAU), A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy; Dipartimento di Scienze Mediche, Università degli Studi di Torino, Italy
| | - Paolo Bima
- S.C. Medicina d'Urgenza U (MECAU), A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy; Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
| | - Matteo Castelli
- Department of Emergency Medicine, Careggi University Hospital, Firenze, Italy
| | - Peiman Nazerian
- Department of Emergency Medicine, Careggi University Hospital, Firenze, Italy.
| |
Collapse
|
7
|
The Clinical Role of 2D and Doppler Echocardiography Artifacts: a Review. CURRENT CARDIOVASCULAR IMAGING REPORTS 2022. [DOI: 10.1007/s12410-022-09573-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|