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Yang Y, Richter R, Halfmann MC, Graafen D, Hell M, Vecsey-Nagy M, Laux G, Kavermann L, Jorg T, Geyer M, Varga-Szemes A, Emrich T. Prospective ECG-gated High-Pitch Photon-Counting CT Angiography: Evaluation of measurement accuracy for aortic annulus sizing in TAVR planning. Eur J Radiol 2024; 178:111604. [PMID: 38996738 DOI: 10.1016/j.ejrad.2024.111604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Accepted: 07/03/2024] [Indexed: 07/14/2024]
Abstract
PURPOSE In planning transcatheter aortic valve replacement (TAVR), retrospective cardiac spiral-CT is recommended to measure aortic annulus with subsequent CT-angiography (CTA) to evaluate access routes. Photon-counting detector (PCD)-CT enables to assess the aortic annulus in desired cardiac phases, using prospective ECG-gated high-pitch CTA. The aim of this study was to evaluate the measurement accuracy of aortic annulus using prospective ECG-gated high-pitch CTA against retrospective spiral-CT reference. METHOD Thirty patients underwent cardiac spiral-CT and prospective ECG-gated (30% R-R on aortic valve level) high-pitch CTA. Using propensity score matching, another 30 patients were identified whose CTA was performed using high-pitch mode without ECG-synchronization. Two investigators measured annular diameter, perimeter, and area on cardiac spiral-CT and high-pitch CTA. RESULTS The aortic valve was imaged in systole in 90 % of prospective ECG-gated CTA cases but only 50 % of non-ECG-gated CTA cases (p = 0.002). There was a strong correlation (r ≥ 0.94) without significant differences (p ≥ 0.09) between cardiac spiral-CT and prospective ECG-gated high-pitch CTA for all annulus measurements. In contrast, significant differences were found in annular short-axis diameter and area between cardiac spiral-CT and non-ECG-gated high-pitch CTA (p ≤ 0.03). Furthermore, prospective ECG-gated high-pitch CTA showed significantly reduced radiation exposure compared with cardiac spiral-CT (CTDI 4.52 vs. 24.10 mGy; p < 0.001). CONCLUSION PCD-CT-based prospective ECG-gated high-pitch scans with targeted systolic acquisition at the level of the aortic valve can simultaneously visualize TAVR access routes and accurately measure systolic annulus size. This approach could aid in optimizing protocols to achieve lower radiation doses in the growing population of younger, low-risk TAVR patients.
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Affiliation(s)
- Y Yang
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - R Richter
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - M C Halfmann
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - D Graafen
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - M Hell
- Department of Cardiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - M Vecsey-Nagy
- Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC 29425, United States; Heart and Vascular Center, Semmelweis University, 68. Varosmajor Street, Budapest 1122, Hungary
| | - G Laux
- Department of Cardiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - L Kavermann
- Department of Cardiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - T Jorg
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - M Geyer
- Department of Cardiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - A Varga-Szemes
- Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC 29425, United States
| | - T Emrich
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC 29425, United States.
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Serafin-Andrzejewska M, Jama-Rodzeńska A, Helios W, Kozak M, Lewandowska S, Zalewski D, Kotecki A. Influence of nitrogen fertilization, seed inoculation and the synergistic effect of these treatments on soybean yields under conditions in south-western Poland. Sci Rep 2024; 14:6672. [PMID: 38509150 PMCID: PMC10954626 DOI: 10.1038/s41598-024-57008-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 03/13/2024] [Indexed: 03/22/2024] Open
Abstract
Soybean, belonging to legumes, has a specific ability to biological nitrogen fixation, which can be reinforced by seeds inoculation. However, support with a starter dose of mineral nitrogen fertilizer may be necessary to achieve high seed yields. A four-year field experiment was conducted to determine the effect of mineral N fertilization (0, 30, 60 kg ha-1), seed inoculation with two commercial inoculants and combinations of these treatments on yield components and yielding of soybean in conditions of south-western part of Poland. The synergistic effect of mineral fertilization at dose 30 kg ha-1 and inoculation on soybean productivity was the most beneficial. Similar effects were observed when 60 kg N ha-1 was applied both separately and with inoculation. However, due to the environmental impact of mineral fertilizers and to promote plants to biological nitrogen fixation (BNF), it is advisable to use lower doses of N fertilizer (at 30 kg ha-1) and inoculate soybean seeds in agro- climatic conditions of south-western Poland. Therefore, based on this study we recommend to apply starter dose of N and inoculation.
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Affiliation(s)
- Magdalena Serafin-Andrzejewska
- Institute of Agroecology and Plant Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
| | - Anna Jama-Rodzeńska
- Institute of Agroecology and Plant Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
| | - Waldemar Helios
- Institute of Agroecology and Plant Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
| | - Marcin Kozak
- Institute of Agroecology and Plant Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
| | - Sylwia Lewandowska
- Department of Genetics, Plant Breeding and Seed Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland.
| | - Dariusz Zalewski
- Department of Genetics, Plant Breeding and Seed Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
| | - Andrzej Kotecki
- Institute of Agroecology and Plant Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki Sq. 24 A, 50-363, Wrocław, Poland
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Ciampi Q, Cortigiani L, Rivadeneira Ruiz M, Barbieri A, Manganelli F, Mori F, D’Alfonso MG, Bursi F, Villari B. ABCDEG Stress Echocardiography in Aortic Stenosis. Diagnostics (Basel) 2023; 13:1727. [PMID: 37238211 PMCID: PMC10217228 DOI: 10.3390/diagnostics13101727] [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: 04/19/2023] [Revised: 05/06/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Rest and stress echocardiography (SE) plays a pivotal role in the evaluation of valvular heart disease. The use of SE is recommended in valvular heart disease when there is a mismatch between resting transthoracic echocardiography findings and symptoms. In aortic stenosis (AS), rest echocardiographic analysis is a stepwise approach that begins with the evaluation of aortic valve morphology and proceeds to the measurement of the transvalvular aortic gradient and aortic valve area (AVA) using continuity equations or planimetry. The presence of the following three criteria suggests severe AS: AVA < 1.0 cm2, a peak velocity > 4.0 m/s, or a mean gradient > 40 mmHg. However, in approximately one in three cases, we can observe a discordant AVA < 1 cm2 with a peak velocity < 4.0 m/s or a mean gradient <40 mmHg. This is due to reduced transvalvular flow associated with LV systolic dysfunction (LVEF < 50%) defined as "classical" low-flow low-gradient (LFLG) AS or normal LVEF "paradoxical" LFLG AS. SE has an established role in evaluating LV contractile reserve (CR) patients with reduced LVEF. In classical LFLG AS, LV CR distinguished pseudo-severe AS from truly severe AS. Some observational data suggest that long-term prognosis in asymptomatic severe AS may not be as favorable as previously thought, offering a window of opportunity for intervention prior to the onset of symptoms. Therefore, guidelines recommend evaluating asymptomatic AS with exercise stress in physically active patients, particularly those younger than 70 years, and symptomatic classical LFLG severe AS with low-dose dobutamine SE. A comprehensive SE assessment includes evaluating valve function (gradients), the global systolic function of the LV, and pulmonary congestion. This assessment integrates considerations of blood pressure response, chronotropic reserve, and symptoms. StressEcho 2030 is a prospective, large-scale study that employs a comprehensive protocol (ABCDEG) to analyze the clinical and echocardiographic phenotypes of AS, capturing various vulnerability sources which support stress echo-driven treatment strategies.
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Affiliation(s)
- Quirino Ciampi
- Cardiology Division, Fatebenefratelli Hospital, 82100 Benevento, Italy;
| | | | | | - Andrea Barbieri
- Department of Biomedical, Cardiology Division, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41121 Modena, Italy;
| | - Fiore Manganelli
- Cardiology Division, San Giuseppe Moscati Hospital, 83100 Avellino, Italy;
| | - Fabio Mori
- Cardiology Division, Careggi Hospital, 50134 Florence, Italy; (F.M.); (M.G.D.)
| | | | - Francesca Bursi
- Department of Health Science, University of Milan, Cardiology Division, San Paolo Hospital, ASST Santi Paolo e Carlo, 20142 Milano, Italy;
| | - Bruno Villari
- Cardiology Division, Fatebenefratelli Hospital, 82100 Benevento, Italy;
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Guo R, Fan C, Sun Z, Zhang H, Sun Y, Song L, Jiang Z, Liu L. Clinical efficacy and safety of Cox-maze IV procedure for atrial fibrillation in patients with aortic valve calcification. Front Cardiovasc Med 2023; 10:1092068. [PMID: 37077739 PMCID: PMC10106572 DOI: 10.3389/fcvm.2023.1092068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
ObjectiveAtrial fibrillation is associated with a high incidence of heart valve disease. There are few prospective clinical research comparing aortic valve replacement with and without surgical ablation for safety and effectiveness. The purpose of this study was to compare the results of aortic valve replacement with and without the Cox-maze IV procedure in patients with calcific aortic valvular disease and atrial fibrillation.MethodsWe analyzed one hundred and eight patients with calcific aortic valve disease and atrial fibrillation who underwent aortic valve replacement. Patients were divided into concomitant Cox maze surgery (Cox-maze group) and no concomitant Cox-maze operation (no Cox-maze group). After surgery, freedom from atrial fibrillation recurrence and all-cause mortality were evaluated.ResultsFreedom from all-cause mortality after aortic valve replacement at 1 year was 100% in the Cox-maze group and 89%, respectively, in the no Cox-maze group. No Cox-maze group had a lower rate of freedom from atrial fibrillation recurrence and arrhythmia control than those in the Cox-maze group (P = 0.003 and P = 0.012, respectively). Pre-operatively higher systolic blood pressure (hazard ratio, 1.096; 95% CI, 1.004–1.196; P = 0.04) and post-operatively increased right atrium diameters (hazard ratio, 1.755; 95% CI, 1.182–2.604; P = 0.005) were associated with atrial fibrillation recurrence.ConclusionThe Cox-maze IV surgery combined with aortic valve replacement increased mid-term survival and decreased mid-term atrial fibrillation recurrence in patients with calcific aortic valve disease and atrial fibrillation. Pre-operatively higher systolic blood pressure and post-operatively increased right atrium diameters are associated with the prediction of recurrence of atrial fibrillation.
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Boxhammer E, Berezin AE, Paar V, Bacher N, Topf A, Pavlov S, Hoppe UC, Lichtenauer M. Severe Aortic Valve Stenosis and Pulmonary Hypertension: A Systematic Review of Non-Invasive Ways of Risk Stratification, Especially in Patients Undergoing Transcatheter Aortic Valve Replacement. J Pers Med 2022; 12:jpm12040603. [PMID: 35455719 PMCID: PMC9026430 DOI: 10.3390/jpm12040603] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 02/01/2023] Open
Abstract
Patients with severe aortic valve stenosis and concomitant pulmonary hypertension show a significantly reduced survival prognosis. Right heart catheterization as a preoperative diagnostic tool to determine pulmonary hypertension has been largely abandoned in recent years in favor of echocardiographic criteria. Clinically, determination of echocardiographically estimated systolic pulmonary artery pressure falls far short of invasive right heart catheterization data in terms of accuracy. The aim of the present systematic review was to highlight noninvasive possibilities for the detection of pulmonary hypertension in patients with severe aortic valve stenosis, with a special focus on cardiovascular biomarkers. A total of 525 publications regarding echocardiography, cardiovascular imaging and biomarkers related to severe aortic valve stenosis and pulmonary hypertension were analyzed in a systematic database analysis using PubMed Central®. Finally, 39 publications were included in the following review. It was shown that the current scientific data situation, especially regarding cardiovascular biomarkers as non-invasive diagnostic tools for the determination of pulmonary hypertension in severe aortic valve stenosis patients, is poor. Thus, there is a great scientific potential to combine different biomarkers (biomarker scores) in a non-invasive way to determine the presence or absence of PH.
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Affiliation(s)
- Elke Boxhammer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Alexander E. Berezin
- Internal Medicine Department, State Medical University of Zaporozhye, 69035 Zaporozhye, Ukraine;
| | - Vera Paar
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Nina Bacher
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Albert Topf
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Sergii Pavlov
- Department of Clinical Laboratory Diagnostics, State Medical University of Zaporozhye, 69035 Zaporozhye, Ukraine;
| | - Uta C. Hoppe
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Michael Lichtenauer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
- Correspondence:
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