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Mach M, Okutucu S, Kerbel T, Arjomand A, Fatihoglu SG, Werner P, Simon P, Andreas M. Vascular Complications in TAVR: Incidence, Clinical Impact, and Management. J Clin Med 2021; 10:jcm10215046. [PMID: 34768565 PMCID: PMC8584339 DOI: 10.3390/jcm10215046] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 12/12/2022] Open
Abstract
Transcatheter aortic valve replacement (TAVR) has replaced surgical aortic valve replacement as the new gold standard in elderly patients with severe aortic valve stenosis. However, alongside this novel approach, new complications emerged that require swift diagnosis and adequate management. Vascular access marks the first step in a TAVR procedure. There are several possible access sites available for TAVR, including the transfemoral approach as well as transaxillary/subclavian, transcarotid, transapical, and transcaval. Most cases are primarily performed through a transfemoral approach, while other access routes are mainly conducted in patients not suitable for transfemoral TAVR. As vascular access is achieved primarily by large bore sheaths, vascular complications are one of the major concerns during TAVR. With rising numbers of TAVR being performed, the focus on prevention and successful management of vascular complications will be of paramount importance to lower morbidity and mortality of the procedures. Herein, we aimed to review the most common vascular complications associated with TAVR and summarize their diagnosis, management, and prevention of vascular complications in TAVR.
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Affiliation(s)
- Markus Mach
- Department of Cardiac Surgery, Medical University Vienna, 1090 Vienna, Austria; (T.K.); (P.W.); (P.S.); (M.A.)
- Correspondence: ; Tel.: +43-1-40400-52620
| | - Sercan Okutucu
- Department of Cardiology, Memorial Ankara Hospital, 06520 Ankara, Turkey;
| | - Tillmann Kerbel
- Department of Cardiac Surgery, Medical University Vienna, 1090 Vienna, Austria; (T.K.); (P.W.); (P.S.); (M.A.)
| | - Aref Arjomand
- Department of Cardiology, St. John of God Hospital, Geelong, VIC 3220, Australia;
| | | | - Paul Werner
- Department of Cardiac Surgery, Medical University Vienna, 1090 Vienna, Austria; (T.K.); (P.W.); (P.S.); (M.A.)
| | - Paul Simon
- Department of Cardiac Surgery, Medical University Vienna, 1090 Vienna, Austria; (T.K.); (P.W.); (P.S.); (M.A.)
| | - Martin Andreas
- Department of Cardiac Surgery, Medical University Vienna, 1090 Vienna, Austria; (T.K.); (P.W.); (P.S.); (M.A.)
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Meincke F, Reinholz C, Spangenberg T, Wienemann H, Arjomand A, Kreidel F, Kuck KH, Ghanem A. Coronary Artery Aneurysm After Bioresorbable Vascular Scaffold Implantation With Post-Dilation: Is Less More? JACC Cardiovasc Interv 2017; 10:96-97. [PMID: 28017314 DOI: 10.1016/j.jcin.2016.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 09/22/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Felix Meincke
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany.
| | - Claudia Reinholz
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany
| | | | - Hendrik Wienemann
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany
| | - Aref Arjomand
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany
| | - Felix Kreidel
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany
| | - Karl-Heinz Kuck
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany
| | - Alexander Ghanem
- Asklepios Klinik St. Georg, Department for Cardiology, Hamburg, Germany; Medizinische Klinik II, Universitaetsklinikum Bonn, Bonn, Germany
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Menssen HD, Schmidt A, Bartelt S, Arjomand A, Thomsen H, Leben R, Kath R, Thiel E. Analysis of Wilms tumor gene (WT1) expression in acute leukemia patients with special reference to the differential diagnosis between eosinophilic leukemia and idiopathic hypereosinophilic syndromes. Leuk Lymphoma 2000; 36:285-94. [PMID: 10674900 DOI: 10.3109/10428190009148849] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Continuous Wilms' tumor gene (WT1) expression is a typical feature of leukemic blasts in AML, ALL, and blast crisis CML patients. It is easily detectable by a variety of RT-PCR protocols, which differ mainly in their sensitivity. The nuclear WT1 protein can be found in blasts of approximately 50-60% of acute leukemia patients at diagnosis. Conversely, WT1 is only transiently expressed in normal hemopoiesis. Early CD34+ hemopoietic progenitors express WT1, whereas no WT1 mRNA transcripts can be found in mature blood cells and differentiation-induced committed CD34- progenitors. As a powerful complementary diagnostic tool, testing for WT1 expression can be helpful to discriminate between eosinophilic leukemia (EoL) patients and patients with idiopathic hypereosinophilic syndromes. Conflicting data about the usefulness of testing for WT1 expression to monitor minimal residual disease (MRD) in treated leukemia patients will be discussed. Finally, research strategies to circumvent shortcomings in detecting leukemia-associated WT1 expression will be outlined.
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Affiliation(s)
- H D Menssen
- Medizinische Klinik III, Hämatologie, Onkologie und Transfusionsmedizin, Universitätsklinikum Benjamin Franklin der Freien Universität Berlin, Germany, EU.
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Buchholz BA, Arjomand A, Dueker SR, Schneider PD, Clifford AJ, Vogel JS. Intrinsic erythrocyte labeling and attomole pharmacokinetic tracing of 14C-labeled folic acid with accelerator mass spectrometry. Anal Biochem 1999; 269:348-52. [PMID: 10222009 DOI: 10.1006/abio.1999.4041] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Long-term physiologic tracing of nutrients, toxins, and drugs in healthy subjects is not possible using traditional decay counting of radioisotopes or stable isotope mass spectrometry due to radiation exposure and limited sensitivity, respectively. A physiologic dose of 14C-labeled folic acid (35 microg, 100 nCi) was ingested by a healthy adult male and followed for 202 days in plasma, erythrocytes, urine, and feces using accelerator mass spectrometry. All samples and generated wastes were classified nonradioactive and the subject received a lifetime-integrated radiological effective dose of only 11 microSv. Radiolabeled folate appeared in plasma 10 min after ingestion but did not appear in erythrocytes until 5 days later. Approximately 0.4% of the erythrocytes were intrinsically labeled with an average of 130 (14)C atoms during erythropoiesis from the pulse of plasma [14C]folate. An appropriate radiocarbon-labeled precursor can intrinsically label DNA or a specific protein during synthesis and obtain limits of quantitation several orders of magnitude below that of stable isotope methods.
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Affiliation(s)
- B A Buchholz
- Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
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Au TV, So-Lui MC, Zhang Y, Arjomand A, Lin Y, Dueker SR, Ho YK, Clifford AJ. Tissue folate binding protein levels in transgenic mice with tumors and in non-transgenic controls. Comp Biochem Physiol C Pharmacol Toxicol Endocrinol 1999; 123:45-52. [PMID: 10390055 DOI: 10.1016/s0742-8413(99)00008-0] [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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Localized folate deficiency may be a risk factor for cancer. Since, folate binding proteins (FBP) and reduced folate carrier proteins (RFC) mediate cellular transport of folate, we compared FBP concentrations in several organs from tumor-bearing transgenic (TBT) mice and tumor-free non-transgenic controls (NTC) of the same strain, age, and fed identical diets. Liver, spleen, brain, small intestine and kidney were individually homogenized in phosphate-buffered saline (PBS) and separated into membrane, cytoplasmic, mitochondrial/lysomal and nuclear fractions (confirmed with marker enzymes). Homogenates and fractions was analyzed for total protein, and FBP. We used rabbit anti-bovine milk antibody and ELISA to measure FBP. FBP concentrations in kidney, small intestine, and spleen of TBT mice were higher than those of NTC mice; the opposite was true in liver and lung. FBP seemed to be upregulated in kidneys (all fractions), small intestine (all fractions), and spleen (cytoplasmic and nuclear fractions only) of TBT mice compared to NTC mice; the opposite appeared true in liver (all fractions) and lung (all fractions). FBP concentrations in brain, heart, and muscle of TBT mice were not different from those in brain, heart and muscle of NTC mice. A longitudinal study will determine if these changes in FBP concentrations precede tumor onset.
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Affiliation(s)
- T V Au
- Chemistry and Biochemistry Department, San Francisco State University, CA 94132, USA
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Clifford AJ, Arjomand A, Dueker SR, Schneider PD, Buchholz BA, Vogel JS. The dynamics of folic acid metabolism in an adult given a small tracer dose of 14C-folic acid. Adv Exp Med Biol 1998; 445:239-51. [PMID: 9781393 DOI: 10.1007/978-1-4899-1959-5_15] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Folate is an essential nutrient that is involved in many metabolic pathways, including amino acid interconversions and nucleotide (DNA) synthesis. In genetically susceptible individuals and populations, dysfunction of folate metabolism is associated with severe illness. Despite the importance of folate, major gaps exist in our quantitative understanding of folate metabolism in humans. The gaps exist because folate metabolism is complex, a suitable animal model that mimics human folate metabolism has not been identified, and suitable experimental protocols for in vivo studies in humans are not developed. In general, previous studies of folate metabolism have used large doses of high specific activity tritium and 14C-labeled folates in clinical patients. While stable isotopes such as deuterium and 13C-labeled folate are viewed as ethical alternatives to radiolabeled folates for studying metabolism, the lack of sensitive mass spectrometry methods to quantify them has impeded advancement of the field using this approach. In this chapter, we describe a new approach that uses a major analytical breakthrough, Accelerator Mass Spectrometry (AMS). Because AMS can detect attomole concentrations of 14C, small radioactive dosages (nCi) can be safely administered to humans and traced over long periods of time. The needed dosages are sufficiently small that the total radiation exposure is only a fraction of the natural annual background radiation of Americans, and the generated laboratory waste may legally be classified non-radioactive in many cases. The availability of AMS has permitted the longest (202 d) and most detailed study to date of folate metabolism in a healthy adult human volunteer. Here we demonstrate the feasibility of our approach and illustrate its potential by determining empirical kinetic values of folate metabolism. Our data indicate that the mean sojourn time for folate is in the range of 93 to 120 d. It took > or = 350 d for the absorbed portion of small bolus dose of 14C-folic acid to be eliminated completely from the body.
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Affiliation(s)
- A J Clifford
- Department of Nutrition, University of California, Davis 95616, USA.
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