Horaţiu Dan Comşa

Dr. Horaţiu Dan Comşa

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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27 September 2021 in Journal of Personalized Medicine
Verified
Journal Article
Open access
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DGDiana Gurzău
Diana Gurzău
ASAdela-Viviana Sitar-Taut
Adela-Viviana Sitar-Taut
BCBogdan Caloian
Bogdan Caloian
GGGabriel Gusetu
Gabriel Gusetu
HCHoraţiu Dan Comşa
Horaţiu Dan Comşa
DPDana Pop
Dana Pop
Background: Microvascular angina is a common clinical entity, with about a three-fold higher frequency in women. The pathogenesis of microvascular angina has not been much studied, but inflammation and endothelial dysfunction have been incriminated as the main mechanisms of this disease. Methoss: Our purpose was to analyze whether certain inflammatory markers, i.e., interleukin 6 (IL-6) and endothelin 1 (ET-1), can play a role in the diagnosis of microvascular angina in women. Results: Ninety women with ischemic heart disease were divided into two groups, based on their affliction with either microvascular or macrovascular disease. In general, the levels of IL6 and ET1 were similar between the two groups. Analyzing these marker levels according to the number of coronary lesions, we obtained an increased IL6 value that was similar for patients with microvascular angina, one-vessel, and two-vessel coronary disease, but significantly lower than in women with three-vessel coronary lesions. Also, in microvascular angina, IL6 level was correlated with the NYHA IV functional class. Unexpectedly, the level of ET1 was correlated with left ventricular systolic dysfunction. Conclusions: In women with an increased suspicion of microvascular angina, in whom microvascular dysfunction cannot be tested invasively, IL-6 level, unlike the ET-1 level, might be considered a diagnostic marker of this disease.

Verified
Journal Article
Open access
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IFIulia Fagarasan
Iulia Fagarasan
ARAdriana Rusu
Adriana Rusu
HCHoraţiu Dan Comşa
Horaţiu Dan Comşa
TSTudor Dan Simu
Tudor Dan Simu
DVDamiana-Maria Vulturar
Damiana-Maria Vulturar
DTDoina Adina Todea
Doina Adina Todea
Inflammation along with coagulation disturbances has an essential role in the evolution towards a severe disease in patients with the coronavirus disease 2019 (COVID-19). This study aimed to evaluate inflammatory and coagulation biomarkers when predicting the need to visit an intensive care unit (ICU) in diabetes mellitus (DM) patients. In a retrospective study, laboratory parameters were examined for 366 participants: ICU = 90, of which 44 patients had DM and no ICU admittance = 276. The ability of inflammatory and coagulation markers to distinguish the severity of COVID-19 was determined using univariate and multivariate regression analysis. In all patients, lactate dehydrogenase was the only predictor for ICU admittance in the multivariate analysis. In the DM group, the results showed that the interleukin (IL)-6 and neutrophil/lymphocyte ratio (NLR) values at admission could predict the need for ICU admittance. Even though there were significant differences between the ICU and no ICU admittance groups regarding the coagulation markers, they could not predict the severity of the disease in DM patients. The present study showed for the first time that the IL-6 and NLR admission values could predict ICU admittance in DM patients. This finding could help clinicians manage the infection more easily if the COVID-19 pandemic strikes again.

25 November 2021 in Medical Ultrasonography
Verified
Journal Article
Closed access
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IMIoan-Alexandru Minciuna
Ioan-Alexandru Minciuna
MPMihai Puiu
Mihai Puiu
Gabriel CismaruGabriel Cismaru
Gabriel Cismaru
RRRadu Rosu
Radu Rosu
RTRaluca Tomoaia
Raluca Tomoaia
DPDana Pop
Dana Pop
Aims: Intracardiac echocardiography (ICE) is a relatively young technique used during complex electrophysiology proce-dures, such as atrial fibrillation (AF) ablation. The aim of this study was to assess whether the use of ICE modifies the radia-tion exposure at the beginning of the learning curve in AF ablation. Materials and methods: In this retrospective study, 52 patients, in which catheter ablation for paroxysmal or persistent AF was performed, were included. For 26 patients we used ICE guidance together with fluoroscopy, whereas for the remaining 26 patients we used fluoroscopy alone, all supported by electroanatomical mapping. We compared total procedure time and radiation exposure, including fluoroscopy dose and time between the two groups and along the learning curve. Results: Most of the patients included were suffering from paroxysmal AF (40, 76%), pulmonary vein isolation being performed in all patients, without secondary ablation sites. The use of ICE was associated with a lower fluoroscopy dose (11839.60±6100.6 vs. 16260.43±8264.5 mGy, p=0.041) and time (28.00±12.5 vs. 42.93±12.7 minutes, p=0.001), whereas the mean procedure time was similar between the two groups (181.54±50.3 vs 197.31±49.8 minutes, p=0.348). Radiation exposure was lower in the last 9 months compared to the first 9 months of the study (p<0.01), decreasing gradually along the learning curve. Conclusions: The use of ICE lowers radiation exposure in AF catheter ablation from the beginning of the learning curve, without any difference in terms of acute safety or efficacy. Aware-ness towards closest to zero radiation exposure during electrophysiology procedures should increase in order to achieve better protection for both patient and medical staff.

28 February 2023 in Medicina
Verified
Journal Article
Open access
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HCHoraţiu Dan Comşa
Horaţiu Dan Comşa
GGGabriel Gusetu
Gabriel Gusetu
Gabriel CismaruGabriel Cismaru
Gabriel Cismaru
BCBogdan Caloian
Bogdan Caloian
RRRadu Rosu
Radu Rosu
DPDana Pop
Dana Pop
Background and Objectives: Revascularization has been proven to be superior to medication for symptom improvement in patients with peripheral arterial disease (PAD). There are well known gender differences in therapeutic strategies for PAD. The influence of gender on post-angioplasty prognosis is not fully understood though. The present study aims to identify potential peculiarities between men and women undergoing peripheral angioplasty, as well as factors responsible for those differences. Material and methods: 104 consecutive subjects (50 women and 54 men) who underwent percutaneous angioplasty (PTA) between January and October 2019 for symptomatic PAD were included. Demographics, PAD history, cardiovascular risk factors, comorbidities, the associated coronary or cerebrovascular diseases, biological parameters, drug-treatment and PTA type and technique were taken into account. The follow-up period was 2 years, during which major adverse limb events (MALE) were documented. Results: The mean age was 67 ± 10 years. Women were 4 years older than the men (69 ± 10 years vs. 65 ± 9.2 years—p = 0.04). Smoking was more prevalent in men (p = 0.0004), while other cardiovascular risk factors did not differ significantly. The mean follow-up of the two groups was 21 ± 2.4 months. Women had infra-inguinal involvement more frequently (78%), while men exhibited mixed disease, with supra + infra-inguinal (37%) or solely supra-inguinal (20.3%) involvement (p = 0.0012). Rates of MALE were similar in the two groups (p = 0.914). Gender did not influence the incidence of PAD-related adverse events. The only parameter that proved to have a significant influence on the occurrence of MALE was the ankle–brachial index (ABI). A value below 0.5 was found to be an independent predictor for MALE (p = 0.001). Conclusions: There was no significant difference in the incidence rates of MALE between the two genders over a 2-year follow-up period post-PTA. Regardless of sex, an ankle–brachial index value below 0.5 was the sole independent predictor for limb-related adverse events.

2 January 2026 in In Vivo
Verified
Journal Article
Open access
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ACAdina David ComșA
Adina David ComșA
HCHoraţiu Dan Comşa
Horaţiu Dan Comşa
GCGabriel Cismaru
Gabriel Cismaru
RRRadu RoșU
Radu RoșU
DPDana Pop
Dana Pop
SGLT2 inhibitors (SGLT2is) and GLP-1 receptor agonists (GLP-1RAs) are two novel anti-diabetic therapeutic classes with an important impact on cardiovascular outcomes. Ongoing clinical trials are further investigating their potential beneficial effects on multiple cardiovascular conditions. Even though the underlying mechanisms are not yet fully understood, it is speculated that their cardiovascular protection goes beyond simply lowering plasma glucose levels. By reducing chronic inflammation through multiple pathways, these therapeutic agents seem to have pleiotropic effects on the cardiovascular system. This descriptive review summarizes the most important anti-inflammatory pathways of SGLT2 is and GLP1-RAs, as described in present literature. We focus on inflammatory cytokines, oxidative stress, immune cell and mitochondrial function modulation, inflammatory pathway regulation and endothelial dysfunction improvement, with particular emphasis on their role in cardiovascular protection. A better understanding of the molecular mechanisms leading to the beneficial effects of these drugs could be crucial in developing a more specific therapeutic approach to various cardiovascular diseases.

Verified
Journal Article
Open access
PDF file
DGDiana Gurzău
Diana Gurzău
ADAlexandra Dădârlat-Pop
Alexandra Dădârlat-Pop
BCBogdan Caloian
Bogdan Caloian
Gabriel CismaruGabriel Cismaru
Gabriel Cismaru
HCHoraţiu Dan Comşa
Horaţiu Dan Comşa
DPDana Pop
Dana Pop
Left bundle branch block is not a benign pathology, and its presence requires the identification of a pathological substrate, such as ischemic heart disease. Left bundle branch block appears to be more commonly associated with normal coronary arteries, especially in women. The objectives of our study were to describe the particularities of left bundle branch block in women compared to men with ischemic heart disease. Result: We included seventy patients with left bundle branch block and ischemic heart disease, with a mean age of 67.01 ± 8.89 years. There were no differences in the profile of risk factors, except for smoking and uric acid. The ventricular depolarization (QRS) duration was longer in men than women (136.86 ± 8.32 vs. 132.57 ± 9.19 msec; p = 0.018) and also men were observed to have larger left ventricular diameters. Left bundle branch block duration was directly associated with ventricular diameters and indirectly associated with left ventricular ejection fraction value, especially in women (R = −0.52, p = 0.0012 vs. R = −0.50, p = 0.002). In angiography, 80% of women had normal epicardial arteries compared with 65.7% of men; all these patients presented with microvascular dysfunction. Conclusion: The differences between the sexes were not so obvious in terms of the presence of risk factors; instead, there were differences in electrocardiographic, echocardiographic, and angiographic aspects. Left bundle branch block appears to be a marker of microvascular angina and systolic dysfunction, especially in women.