Vlad Anton

Dr. Vlad Anton

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Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 March 2024 in European Heart Journal
Verified
Journal Article
Open access
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DFDerk Frank
Derk Frank
EDEric Durand
Eric Durand
SLSandra Lauck
Sandra Lauck
DMDouglas F Muir
Douglas F Muir
MSMark Spence
Mark Spence
GMGemma McCalmont
Gemma McCalmont
There is significant potential to streamline the clinical pathway for patients undergoing transcatheter aortic valve implantation (TAVI). The purpose of this study was to evaluate the effect of implementing BENCHMARK best practices on the efficiency and safety of TAVI in 28 sites in 7 European countries. This was a study of patients with severe symptomatic aortic stenosis (AS) undergoing TAVI with balloon-expandable valves before and after implementation of BENCHMARK best practices. Principal objectives were to reduce hospital length of stay (LoS) and duration of intensive care stay. Secondary objective was to document patient safety. Between January 2020 and March 2023, 897 patients were documented prior to and 1491 patients after the implementation of BENCHMARK practices. Patient characteristics were consistent with a known older TAVI population and only minor differences. Mean LoS was reduced from 7.7 ± 7.0 to 5.8 ± 5.6 days (median 6 vs. 4 days; P < .001). Duration of intensive care was reduced from 1.8 to 1.3 days (median 1.1 vs. 0.9 days; P < .001). Adoption of peri-procedure best practices led to increased use of local anaesthesia (96.1% vs. 84.3%; P < .001) and decreased procedure (median 47 vs. 60 min; P < .001) and intervention times (85 vs. 95 min; P < .001). Thirty-day patient safety did not appear to be compromised with no differences in all-cause mortality (0.6% in both groups combined), stroke/transient ischaemic attack (1.4%), life-threatening bleeding (1.3%), stage 2/3 acute kidney injury (0.7%), and valve-related readmission (1.2%). Broad implementation of BENCHMARK practices contributes to improving efficiency of TAVI pathway reducing LoS and costs without compromising patient safety. BENCHMARK: streamlined transcatheter aortic valve implantation (TAVI) pathway with retained safety. CCU, coronary care unit; ICU, intensive care unit; GW, general ward; IMC, intermediate care; PPM, permanent pacemaker. *Includes patients with available data on LoS only.

15 May 2019 in Medicina
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Journal Article
Open access
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PLPolliana Mihaela Leru
Polliana Mihaela Leru
AEAna-Maria Eftimie
Ana-Maria Eftimie
VAVlad Anton
Vlad Anton
Michel ThibaudonMichel Thibaudon
Michel Thibaudon
Background and objectives: Respiratory allergies induced by allergenic pollen represent an important public health problem with increasing prevalence and severity in Europe. Romania has no aerobiology network and pollen measurements have been done for about ten years in the west region only. Materials and Methods: We established the first pollen monitoring center in the capital of Bucharest in 2013, based on collaboration with the Réseau National de Surveillance Aérobiologique (RNSA) from France. The aim of our paper is to present results from five years of pollen monitoring in the city center of Bucharest and preliminary data on distribution and health impact of some allergenic plants, mainly Ambrosia artemisiifolia, which is considered a real danger for the public health. Results: Our data show a significant atmospheric amount and a longer season than previously considered of grass (Gramineae) pollen and short period with a high level of Ambrosia pollen, while tree pollen looks less important in this area. The plant distribution data provided by specialists and information from affected persons showed the wide and increasing spread of Ambrosia in Bucharest and other cities from the south region. Preliminary health data from allergists confirmed that the number of patients with allergies to Ambrosia pollen is increasing from one year to another and almost all patients describe a high urban exposure from their living or working place. Conclusions: We consider that the recently implemented Law 62/2018 against Ambrosia may help reduce weed distribution and the atmospheric pollen load, but a more complex and coordinated strategy for controlling urban vegetation and reducing biologic pollution is needed.

PLPolliana Mihaela Leru
Polliana Mihaela Leru
VAVlad Anton
Vlad Anton
AEAna Maria Eftimie
Ana Maria Eftimie
SSSorin Stefanut
Sorin Stefanut
Ragweed pollen is an important component of biological pollution in the urban environment, responsible for increasing respiratory allergies and significant contribution to the health impact of air pollution in the Bucharest area. The aim of this paper is to present the eight-year ragweed pollen monitoring data from Bucharest, to place them in the context of local air pollution, public health regulations and available data on the health impact of ragweed pollen in the urban environment. Our pollen data were correlated with major air pollutant concentrations and with meteorological factors in a recently published local paper and the clinical data of patients with ragweed-induced respiratory symptoms were collected and published in 2019. The ragweed pollen monitoring data, correlated with field data reported by patients and plant specialists confirm the rapid spread of Ambrosia in the Bucharest city area, in addition to some stringent environmental local problems due to air pollution. The number of patients addressed to allergists almost doubled from one year to another, confirming the real alarming health impact of this environmental hazard. Our study confirms the need for more coherent strategies to control ragweed spread, based on application of existing local and international regulations, air pollution control and evaluation of consequences on human health.

25 October 2018 in Allergy, Asthma & Clinical Immunology
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Journal Article
Open access
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PLPolliana Mihaela Leru
Polliana Mihaela Leru
VAVlad Anton
Vlad Anton
HBHoria Bumbea
Horia Bumbea
Angioedema due to acquired deficiency of C1-inhibitor (C1-INH-AAE) is a rare disease sharing some clinical and laboratory similarities with hereditary angioedema, but with late onset and no positive family history. The underlining cause may be malignant or due to autoimmune diseases, but some cases remain idiopathic. We report a case of a 75 year old woman suffering from recurrent episodes of angioedema since the age of 66, considered first induced by treatment with angiotensin-converting-enzyme inhibitors (ACEI). She continued to have angioedema attacks during 6 years after discontinuation of ACEI, until evaluation in our clinic in 2014, when C1 inhibitor esterase (C1-INH) deficiency was confirmed. The extended medical evaluation for inflammatory, allergic, autoimmune and neoplasic diseases was negative. C1-INH and complement fraction C4 plasma levels were significantly decreased at all measurements, but no diagnostic criteria for diseases known to induce C1-INH deficiency could be found. We first initiated daily prophylactic treatment with tranexamic acid, with no amelioration after 3 months. During the last and most severe attack, with the first facial and laryngeal edema, we have switched to attenuated androgen danazol. The evolution was very good, with prompt remission of angioedema and significant increase of C1-INH and C4 plasma levels after 2 weeks of daily danazol use. She completed 3 years of continuous treatment with low daily maintenance dose of danazol (ongoing), with no angioedema attack. We closely monitored C1-INH and C4 plasma levels, possible danazol side effects and any signs suggesting late onset of C1-INH deficiency causal disease. We reported a particular case of rare angioedema due to acquired deficiency of C1-inhibitor, which has no clear cause after long follow-up, but good response to attenuated androgen. We concluded that the awareness of angioedema due to C1-INH deficiency should be increased within medical community and therapeutic options should be more clearly indicated and available for all diagnosed cases.

17 August 2021 in Cureus
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Journal Article
Open access
PLPolliana Mihaela Leru
Polliana Mihaela Leru
VAVlad Anton
Vlad Anton
Biologic therapy is recommended by Global Initiative for Asthma (GINA) guidelines in asthma patients not controlled with maximal inhaled therapy corresponding to GINA step 4. Omalizumab is an anti- immunoglobulin E (IgE) monoclonal antibody and the first biological available for the add-on treatment of severe allergic asthma, approved by Food and Drug Administration (FDA) in 2003. Diagnosing and managing asthma patients during coronavirus disease 2019 (COVID-19) pandemic since early 2020 has been challenging, mainly due to the risk of contracting COVID-19 disease and to the limited access to hospital care and pulmonary function tests. We report a case of a 52-year-old female patient, diagnosed with adult-onset asthma in 2018, who was first referred to the Allergy Department of our hospital in January 2019 for dyspnea, wheezing, and worsening cough. Despite continuous inhaled therapy and good inhalation technique, she had frequent asthma symptoms, requiring short courses of oral corticosteroids (CS). Physical examination and pulmonary function tests on admission revealed broncho-obstructive syndrome and laboratory tests showed mild inflammation and high total serum IgE. She continued to have two moderate-severe exacerbations after stepping up to maximal inhaled therapy plus oral montelukast and theophylline, according to GINA step 4. By the end of 2019, we additionally started omalizumab, which resulted in prompt clinical benefits and resolution of asthma symptoms. Given the ongoing COVID-19 pandemic limiting in-person visits, virtual follow-ups indicated adequate control of his symptoms, as proved by asthma control test and no need for hospital presentation.

6 September 2019 in Ecocycles
Verified
Journal Article
Open access
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PLPolliana Mihaela Leru
Polliana Mihaela Leru
AEAna Maria Eftimie
Ana Maria Eftimie
VAVlad Anton
Vlad Anton
Michel ThibaudonMichel Thibaudon
Michel Thibaudon
Ambrosia artemisiifolia (ragweed) is an invasive weed with rapid spread during the last decades in many European countries, representing an important problem for environment and for public health, due to its highly allergenic pollen. Data from the European Aeroallergen Network (EAN) confirm the continuous increase of infested areas and of the amospheric ragweed pollen load. Ambrosia is responsible for significant health and economic impact in the most infested areas from Central Europe, mainly Hungary and neighbouring countries, including Romania. Despite generally occurring in dry and abandoned fields, along railways and roadsides, Ambrosia is now recognized as part of urban vegetation in some big cities, contributing to increase risk of air pollution and of respiratory diseases. The aim of our paper is to review the data regarding spread and problematic of Ambrosia in some big cities of Romania, mainly the capital and the actual public activities undertaken to reduce its consequences. Our data showed that Ambrosia is a real and increasing danger for human health in Romania, mainly due to its rapid spread in urban environment and increasing number of affected persons. There is an urgent need for more coordinated efforts and sustainable management of this problem, to reduce impact of Ambrosia in urban environment, to establish a national aerobiology network and to continue collaboration with European institutions and specialists in this field.