Algorithm for rapid exclusion of clinically relevant plasma levels of DOACs in patients using the DOAC Dipstick. An expert consensus paperHarenberg, Job; Gosselin, Robert C.; Cuker, Adam; Becattini, Cecilia; Pabinger, Ingrid; Poli, Sven; Weitz, Jeffrey Ian; Pikta, MarikaThrombosis and Haemostasis2024 / p. 770-777 https://doi.org/10.1055/a-2261-1811 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Analysis of coagulation factors in fresh-frozen plasmaPikta, Marika; Szanto, Timea; Reimal, Reelika; Muliin, P.; König, H.; Blinova, G.; Banys, ValdasResearch and Practice in Thrombosis and Haemostasis2021 https://abstracts.isth.org/abstract/analysis-of-coagulation-factors-in-fresh-frozen-plasma/

Analysis of factor VIII levels in haemophilia A treated patients – preliminary results of pharmacokinetic studyPikta, Marika; Kaju, Kaspar; Malikov, A.; Urbala, Maike; Saks, K.; Rahuoja, Kaisa; Varik, M.; Lepik, K.; Ross, MarikenHaemophilia2023 / p. 107 https://doi.org/10.1111/hae.14715

Arterial stiffness assessment for early diagnosis of atherosclerosisPikta, Marika; Viigimaa, Margus; Pilt, Kristjan; Kööts, Kristina; Meigas, KaljuCardiology2015 / p. 32 https://www.karger.com/Article/Abstract/431110

Assessment of associations between arterial mechanical properties and biochemical blood markers for early detection of atherosclerosisKööts, Kristina; Pilt, Kristjan; Sepa, Madis; Pikta, Marika; Fridolin, Ivo; Meigas, Kalju; Viigimaa, Margus8th European Medical and Biological Engineering Conference : proceedings of the EMBEC 2020, November 29 – December 3, 2020 Portorož, Slovenia2021 / p. 121-129 https://doi.org/10.1007/978-3-030-64610-3_15 Conference Proceedings at Scopus Article at Scopus

Assessment of biological response to desmopressin in VWD patients: preliminary resultsMettis, Laura Johanna; Szanto, Timea; Pikta, Marika; Saks, K.Haemophilia2025 / p. 149 https://doi.org/10.1111/hae.15148 Journal metrics at WOS Article at WOS

Assessment of biological response to desmopressin using von Willebrand factor multimers analysisPikta, Marika; Zemtsovskaja, Galina; Viigimaa, MargusClinical chemistry and laboratory medicine2017 / p. 727 https://www.degruyter.com/downloadpdf/j/cclm.2017.55.issue-s1/cclm-2017-5019/cclm-2017-5019.pdf

Assessment of the von Willebrand factor multimers profile in patients referred for bleeding tendency evaluation in Estonia : a preliminary report of the von Willebrand disease diagnostics projectPikta, Marika; Saks, Kadri; Varik, Mirja; Hytti, Maria; Ilves, Kreete; Ross, MarikenInternational journal of medical laboratory research2021 / p. 17-27 : ill https://doi.org/10.35503/IJMLR.2021.6103

Association between optical signal derived aortic augmentation index and cardiovascular risk factors in healthy volunteersPikta, Marika; Viigimaa, Margus; Pilt, Kristjan; Kööts, Kristina; Meigas, KaljuReports on global health research2020 / art. 119, 8 p. : ill https://doi.org/10.29011/rghr-119.100019 https://www.gavinpublishers.com/article/view/association-between-optical-signal-derived-aortic-augmentation-index-and-cardiovascular-risk-factors-in-healthy-volunteers

Benefit from lipoprotein apheresis in severe case of coronary heart disease patient with high level of lipoprotein (a)Zemtsovski, Mihhail; Zemtsovskaja, Galina; Pikta, Marika; Luman, Merike; Viigimaa, MargusCardiology2015 / p. 35-36 https://www.karger.com/Article/Abstract/431110

Brain-to-brain loop concept in application to porphyrias : 10-year experience at North Estonia Medical CentreZemtsovskaja, Galina; Pikta, Marika; Borissova, Julia; Pille, Viive; Luman, Merike; Viigimaa, MargusEesti Arst2016 / p. 61 http://ojs.utlib.ee/index.php/EA/article/viewFile/12917/8000 http://www.ester.ee/record=b4600434*est

A common molecular mechanism of vascular wall injure in atherosclerosis and diabetesTikhaze, Alla K.; Lankin, Vadim Z.; Konovalova, Galina G.; Zemtsovskaja, Galina; Pikta, Marika; Viigimaa, MargusCardiology2015 / p. 43-44 https://www.karger.com/Article/Abstract/431110

Comparison of chromogenic STA-R Evolution and CS-2500 assays for Apixaban, Rivaroxaban and DabigatranPikta, Marika; Örd, Lenna; Lind, Ellind; Reitsnik, Tarmo; Banys, ValdasEesti laborimeditsiin : Eesti Laborimeditsiini Ühingu ja Eesti Bioanalüütikute Ühingu ajakiri2024 / lk. 70-71 : ill https://www.ester.ee/record=b4560018*est

Comparison of chromogenic STA-R evolution and CS-2500 assays for Apixaban, Rivaroxaban and DabigatranPikta, Marika; Örd, Lenna; Lind, Ellind; Reitsnik, Tarmo; Banys, Valdas"Hematology and hemostasis" Clinical Chemistry and Laboratory Medicine (CCLM)2023 / p. s1274 https://doi.org/10.1515/cclm-2023-7050

Development of diagnostic algorithm for von Willebrand disease within WFH the Twinning Tallinn-Helsinki programPikta, Marika; Banys, Valdas; Vaide, Ines; Varik, Mirja2018 https://www.postersessiononline.eu/173580348_eu/congresos/WFH2018/aula/-M-P_139_WFH2018.pdf

ELMÜ laboratoorse hematoloogia töörühma soovitused hemogrammi laste referentsväärtuste harmoneerimiseksPikta, MarikaEesti laborimeditsiin : Eesti Laborimeditsiini Ühingu ja Eesti Bioanalüütikute Ühingu ajakiri2023 / lk. 24-25 : ill. https://www.ester.ee/record=b4560018*est https://www.elmy.ee/wp-content/uploads/2023/05/Eesti-Laborimeditsiin_mai2023.pdf

Establishing reference intervals for von Willebrand factor multimersPikta, Marika; Vasse, Marc; Smock, Kristi J.; Moser, Karen A.; Dievoet, Marie-Astrid van; Lejniece, Sandra; Szanto, Timea; Bautista, Hector; Nouadje, Georges; Banys, ValdasJournal of medical biochemistry2022 / p. 115-121 https://doi.org/10.5937/jomb0-31941 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Evaluation of a new semi-automated Hydragel 11 von Willebrand factor multimers assay kit for routine usePikta, Marika; Szanto, Timea; Viigimaa, Margus; Lejniece, Sandra; Balode, Darta; Saks, Kadri; Banys, ValdasJournal of medical biochemistry2021 / p. 167−172 https://doi.org/10.5937/jomb0-26008 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Evaluation of automated urine sediment analysis for routine usePikta, Marika; Jerjomina, J.; Kleinson, I.; Titova, T.; Reitsnik, T.Clinica chimica acta2019 / art. M066, p. s44 https://doi.org/10.1016/j.cca.2019.03.101

Evaluation of DOAC dipstick test for detecting direct oral anticoagulants in urine compared with a clinically relevant plasma threshold concentrationÖrd, Lenna; Marandi, Toomas; Märk, Marit; Raidjuk, Leonid; Kostjuk, Jelena; Banys, Valdas; Krause, Karit; Pikta, MarikaClinical and Applied Thrombosis/Hemostasis2022 / 8 p. : ill https://doi.org/10.1177/10760296221084307 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Evaluation of within-subject variation of VWF multimers assayPikta, Marika; Szanto, Timea; Banys, ValdasISTH 2022 : the 30th Congress of the International Society on Thrombosis and Haemostasis2022 / art. PB0828 https://www.eventscribe.net/2022/program/fsPopup.asp?efp=TUZOTFdCREsxNjMzMw&PresentationID=1079739&rnd=0.134093&mode=presinfo

Hirudin as the anticoagulant of choice for whole blood aggregometryPikta, Marika; Titova, Tatjana; Kleinson, Inge; Dovgi, Jelena; Banys, ValdasClinical Chemistry and Laboratory Medicine (CCLM)2023 / s1873 https://doi.org/10.1515/cclm-2023-7058

Implementation and verification of new VWF:Ac assay system with components from different manufacturersPikta, Marika; Zolotareva, Valeria; Tõnne, Jelena; Viigimaa, Margus; Banys, ValdasLaboratorine medicina2016 / p. 185-188 : ill https://www.researchgate.net/publication/312072535_Implementation_and_Verification_of_New_VWFAc_Assay_System_with_Components_from_Different_Manufacturers

Implementation of alternative ristocetin reagent on impedance aggregometry analyzerPikta, Marika; Zolotarev, V.; Banys, ValdasClinica chimica acta2019 / p. S63-S64 https://doi.org/10.1016/j.cca.2019.03.141

Implementation of innovative techniques in the diagnostic work-up of von Willebrand disease = Innovaatiliste meetodite juurutamine von Willebrandi tõve diagnostikasPikta, Marika2023 https://doi.org/10.23658/taltech.38/2023 https://digikogu.taltech.ee/et/Item/99859b1f-55b3-431c-abf6-4ca2c3fab9ca https://www.ester.ee/record=b5570874*est

In freezer storage of plasmas for delayed coagulation factors testing does not affect the resultsPikta, Marika; Laane, Edward; Zolotareva, Valeria; Titova, Tatjana; Banys, ValdasLaboratorine medicina2018 / p. 35 https://www.balm2018.lt/wp-content/uploads/2018/05/Lab_Med_2018_SPEC.pdf

Influence of non-refrigerated urine storage time on stability of urine particlesPikta, Marika; Kleinson, Inge; Titova, Tatjana; Mishalagina, Polina; Dovgi, JelenaXVII Baltic Congress of Laboratory Medicine, September 5–7, 2024, Vilnius2024 / p. 34 https://zurnalas.llmd.lt/sites/default/files/leidinys_balm_2024_spec_redaguotas.pdf

Investigation of porphyrias : 10-year experience at the North Estonia Medical CentreZemtsovskaja, Galina; Pikta, Marika; Borissova, Julia; Pille, Viive; Luman, Merike; Viigimaa, MargusEesti Arst2016 / p. 61 http://ojs.utlib.ee/index.php/EA/article/viewFile/12917/8000 http://www.ester.ee/record=b4600434*est

Laboratory options for assessing the effects of direct oral anticoagulants in EstoniaPikta, Marika; Örd, Lenna; Viigimaa, Margus; Arjakse, Jüri; Banys, Valdas; Thachil, JeckoLaboratorine medicina2025 / p. 68-73 : ill https://www.researchgate.net/publication/393105667

Level of plasma coenzyme Q10 in patients on statin treatmentPikta, Marika; Zemtsovskaja, Galina; Zemtsovski, Mihhail; Duishvili, Davit; Tikhaze, Alla K.; Lankin, Vadim Z.; Viigimaa, MargusCardiology2015 / p. 36 https://www.karger.com/Article/Abstract/431110

Low-titer group O whole blood implementation in a tertiary care hospital in EstoniaKullaste, Riin; Pikta, Marika; Loot, Mari; Russakova, Stanislava; Laansoo, Eve; Rohtla, Kadri; Khanirzajeva, Gulara; Vadi, Ene; Ljahh, DinaTransfusion2025 / p. S237 - S239 : ill https://doi.org/10.1111/trf.18137 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

The metabolic pattern could be useful for better understanding of the etiology of cardiovascular diseasesTitma, Tiina; Shin, Min-Ji; Ludwig, Christian; Günther, Ulrich L.; Pikta, Marika; Zemtsovskaja, Galina; Viigimaa, Margus; Tanner, Risto1st Nordic Metabolomics Conference, 26–28 August 2018 Örebro, Sweden : abstract book2018 / p. 92-93 https://www.oru.se/contentassets/8ce68e72859b49ad9a8bcb96acd612f6/program_abstract-book_2018.pdf

Otseste suukaudsete antikoagulantide (DOAC) adsorbeerimine plasmast in vitrioPikta, Marika; Mettis, Laura Johanna; Örd, LennaEesti laborimeditsiin : Eesti Laborimeditsiini Ühingu ja Eesti Bioanalüütikute Ühingu ajakiri2024 / lk. 37-38 : ill https://www.ester.ee/record=b4560018*est

Point-of-care DOAC dipstick test for screening of DOAC in urinePikta, Marika; Örd, Lenna; Märk, Marit; Raidjuk, Leonid; Kostjuk, Jelena; Krause, Karit; Banys, Valdas; Marandi, ToomasClinical Chemistry and Laboratory Medicine (CCLM)2021 / p. W036 https://doi.org/10.1515/cclm-2021-5021

Preclinical evaluation of a semi‐automated and rapid commercial electrophoresis assay for von Willebrand factor multimersPikta, Marika; Zemtsovskaja, Galina; Bautista, Hector; Nouadje, Georges; Szanto, Timea; Viigimaa, Margus; Banys, ValdasJournal of clinical laboratory analysis2018 / e22416 : ill https://doi.org/10.1002/jcla.22416 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Preliminary results of the evaluation of pharmacokinetic profiles in Haemophilia A patients receiving Efanesoctocog AlfaPikta, Marika; Mettis, L. J.; Rea, A.; Titova, T.; Arjakse, J.; Siirand, M. S.; Rahuoja, K.; Suursaar, K.; Saks, K.Haemophilia2026 / p. 41 https://doi.org/10.1111/hae.70195

Qualitative screening of DOAC-induced anticoagulation in emergency clinical situations : abstractPikta, Marika; Kütt, Marge; Schneider, Siim; Zolotarjova, V.; Viigimaa, Margus; Marandi, Toomas; Arjakse, J.; Banys, ValdasClinical chemistry and laboratory medicine (CCLM)2018 / eA303 https://doi.org/10.1515/cclm-2018-1038

Real-world data on the use of emicizumab in pediatric patients in Baltic countriesKovalova, Z.; Morkunaite, A.; Saulyte Trakymiene, Sonata; Banys, Valdas; Pikta, MarikaResearch and Practice in Thrombosis and Haemostasis2024 / p. 276 https://www.rpthjournal.org/article/S2475-0379(24)00199-7/pdf

Testing strategy for laboratory monitoring of Hemophilia A patients treated with EmicizumabPikta, Marika; Saks, Kadri; Ross, Mariken; Banys, ValdasClinica chimica acta2022 / p. S186-S186 https://doi.org/10.1016/j.cca.2022.04.750

The metabolic pattern could be used for early detection of stable ischemic heart disease and hypertensive heart diseaseTitma, Tiina; Günther, Ulrich L.; Ludwig, Christian; Pikta, Marika; Zemtsovskaja, Galina; Viigimaa, Margus; Samoson, AgoRevue d'epidemiologie et de sante publique2018 / p. S328 https://doi.org/10.1016/j.respe.2018.05.243

The metabolic profile of ischemic heart disease patients with or without previous MI by serum 1H NMR is similarTitma, Tiina; Günther, Ulrich L.; Ludwig, Christian; Pikta, Marika; Zemtsovskaja, Galina; Shin, Min-Ji; Viigimaa, Margus; Tanner, Risto; Samoson, Ago7th Baltic Atherosclerosis Society Congress : [abstracts]2018 / p. 47-48 http://www.ester.ee/record=b4819912*est

The metabolic profile of ishemic heart disease by serum 1H NMRShin, Min-Ji; Titma, Tiina; Ludwig, Christian; Günther, Ulrich L.; Pikta, Marika; Zemtsovskaja, Galina; Viigimaa, Margus; Tanner, Risto; Samoson, Ago2017 Annual Meeting : abstract supplement : late-breaking abstract submissions : 2017, Baltimore2017 / p. 154 https://www.toxicology.org/pubs/docs/Tox/2017ToxSup.pdf

The metabolic profile of stable ischemic heart disease by serum 1H NMRTitma, Tiina; Shin, Min-Ji; Ludwig, Christian; Günther, Ulrich L.; Pikta, Marika; Zemtsovskaja, Galina; Viigimaa, Margus; Tanner, Risto; Samoson, AgoApplied magnetic resonance2019 / p. 527–539 : ill https://doi.org/10.1007/s00723-018-1084-0 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Von Willebrand factor multimeric assay in acquired von Willebrand disease diagnosis : a report of experience from North Estonia Medical CentrePikta, Marika; Banys, Valdas; Szanto, Timea; Joutsi-Korhonen, Lotta; Vaide, Ines; Varik, Mirja; Lehtinen, Anna-Elina; Giangrande, Paul; Laane, EdwardJournal of laboratory physicians2021 / p. 195-201 https://doi.org/10.1055/s-0041-1730818