Victor V. Costan

Prof. Victor V. Costan

Grigore T. Popa University of Medicine and Pharmacy, Iaşi, Romania
orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

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

Representative Publications

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25 June 2018 in PLOS ONE
Verified
Journal Article
Open access
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RURamona Gabriela Ursu
Ramona Gabriela Ursu
Mihai DanciuMihai Danciu
Mihai Danciu
ISIrene Alexandra Spiridon
Irene Alexandra Spiridon
RRRuediger Ridder
Ruediger Ridder
SRSusanne Rehm
Susanne Rehm
TGTarik Gheit
Tarik Gheit
Limited information is available about the involvement of human papillomavirus (HPV) in head and neck squamous cell carcinomas (HNSCCs) in Romanian patients. To evaluate the HPV-attributable fraction in HNSCCs collected in Northeastern Romania. In total, 189 formalin-fixed paraffin-embedded tissue samples (99 oral cavity tumors, 28 oropharynx, 48 pharynx, and 14 larynx/hypopharynx) were analyzed for HPV DNA and RNA using Luminex-based assays, and for overexpression of p16INK4a (p16) by immunohistochemistry. Of the 189 cases, 23 (12.2%) were HPV DNA-positive, comprising half of the oropharyngeal cases (14/28, 50.0%) and 9/161 (5.6%) of the non-oropharyngeal cases. HPV16 was the most prevalent HPV type (20/23, 86.9%), followed by HPV18 (5/23, 21.7%) and HPV39 (1/23, 4.3%). Only two (2/189, 1.1%) HNSCC cases were HPV-driven, i.e. positive for both HPV DNA and RNA. A very small subset of HNSCC cases within this cohort from Northeastern Romania appeared to be HPV-driven.

9 October 2021 in Medicina
Verified
Journal Article
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VCVlad Ioan Covrig
Vlad Ioan Covrig
DLDiana Elena Lazăr
Diana Elena Lazăr
Victor V. CostanVictor V. Costan
Victor V. Costan
RPRoxana Postolica
Roxana Postolica
Beatrice Gabriela IoanBeatrice Gabriela Ioan
Beatrice Gabriela Ioan
Background and Objectives: It is well known that among all cancers, cancers of the head and neck (HNC) have a major impact on patients’ quality of life. Disfigurement, anxiety and disabling physical and psychological symptoms affect people with HNC to such an extent that the suicide rate in this category of patients is exceeded only by that of patients with pancreatic cancer. The aim of this review was to summarize the published literature describing the severity of body image and quality of life impairment in patients with HNC over time, and to examine the psychosocial and functional associations and interventions implemented to improve body image and quality of life. Materials and Methods: We conducted a literature search from 1 January 2018 to June 2021 that included electronic searches of six major databases (PubMed, ScienceDirect, ProQuest, PsycINFO, PsychArticles and Scopus) and review of references of articles screened. Of 620 records, only 9 articles met the eligibility criteria. Results: Numerous studies have been conducted to analyze various psychological variables, but there is still a lack of standardization in the assessment of body image perception (BI) and quality of life, resulting in small-scale testing of interventions with poor results. Conclusions: Expected longitudinal studies describing the flow of body image problems and the mediation and balance factors associated with body image will allow researchers to design methods aimed at limiting body image disorders and thus improving quality of life of patients with head and neck cancer.

4 July 2024 in Materials
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Journal Article
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AGAnca Irina Gradinariu
Anca Irina Gradinariu
CRCarmen Racles
Carmen Racles
Iuliana StoicaIuliana Stoica
Iuliana Stoica
CSCarmen Gabriela Stelea
Carmen Gabriela Stelea
ASAna-Maria Andreea Simionescu
Ana-Maria Andreea Simionescu
Victor V. CostanVictor V. Costan
Victor V. Costan
The biomedical applications of silicones are countless due to their outstanding properties. In dentistry, silicone for maxillofacial and plastic surgery has become indispensable, from both physiological and aesthetic points of view. In this mini-review, silicone materials for dentistry and facial prostheses are discussed, focusing on their properties and alterations when exposed for long periods to different environments. A significant number of studies reported in the literature have been conducted in vitro, mimicking some of the main degradative factors which have been identified as triggers for discoloration and deterioration of the mechanical properties. Among these, in artificial aging and accelerated natural aging studies, UV radiation is considered the most important. Other weathering factors, biological contamination, and disinfection agents may have dramatic effects as well. Several general properties of silicones are described at the beginning, with a focus on biocompatibility, cross-linking mechanisms, and applications in dentistry and maxillofacial prosthetics. We discuss the ongoing cross-linking and/or possible exudation after manufacturing, which also affects the stability of the prosthesis over time, and possibly the patient. Next, the main environmental factors that affect the prostheses in service are presented, including the role of cigarettes smoke, which has been discussed very little so far. A few aspects, such as biofilm formation, its negative effects, and proposed solutions to overcome this phenomenon regarding silicones, are also described. We conclude by proposing a set of topics for future research and development based on the gaps that have been identified in the literature. Although silicones are probably irreplaceable in maxillofacial prosthetics, improvements in terms of base materials, additives, surface treatments, and maintenance are possible and necessary for long-lasting and safer prostheses.

1 April 2021 in Journal of Oral and Maxillofacial Surgery
Verified
Journal Article
Closed access
Victor V. CostanVictor V. Costan
Victor V. Costan
ANAndrei Nicolau
Andrei Nicolau
DSDANIELA D. SULEA
DANIELA D. SULEA
MCMihai Liviu Ciofu
Mihai Liviu Ciofu
OBOtilia Boișteanu
Otilia Boișteanu
EPEugenia Popescu
Eugenia Popescu

29 September 2019 in Medicina
Verified
Journal Article
Open access
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CDCristian Ilie Drochioi Drochioi
Cristian Ilie Drochioi Drochioi
DSDANIELA D. SULEA
DANIELA D. SULEA
Daniel TimofteDaniel Timofte
Daniel Timofte
VMVeronica Mocanu
Veronica Mocanu
EPEugenia Popescu
Eugenia Popescu
Victor V. CostanVictor V. Costan
Victor V. Costan
Due to the anatomical and functional complexity of the region, craniofacial tumor removal requires some of the most challenging surgical approaches, often complemented with advanced chemo-radiotherapy techniques. However, these modern therapies often lead to sequelae that can drastically reduce the quality of life for the surviving patients. Recent advances in the field of regenerative medicine opened new avenues for craniofacial reconstruction following head and neck cancer treatment. One of the most promising recent strategies relies on the use of autologous fat transplant. In this mini review, we briefly present some of the fat’s biological properties that make it an ideal tissue for craniofacial reconstruction following cancer treatment. We then outline the recent advances that led to a better understanding of the detailed anatomy of the craniofacial fat depots. Furthermore, we provide a succinct review of the methods used for fat harvesting, processing and engrafting in the craniofacial area after head and neck tumor removal, discussing their main applications, advantages and limitations.

8 October 2021 in Applied Sciences
Verified
Journal Article
Open access
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Ramona Gabriela UrsuRamona Gabriela Ursu
Ramona Gabriela Ursu
Ionut LuchianIonut Luchian
Ionut Luchian
NGNicolae Ghetu
Nicolae Ghetu
Victor V. CostanVictor V. Costan
Victor V. Costan
OSOvidiu Stamatin
Ovidiu Stamatin
EAElena Porumb- Andrese
Elena Porumb- Andrese
(1) Background: Head and neck squamous cell carcinomas (HNSCCs) are some of the most frequent malignancies globally. Oncogenic viruses MCPyV, EBV and HPVs are recognized to be related to HNSCCs and skin cancers. There are no data from Romania regarding the involvement of herpes viruses and polyomaviruses in these types of cancer. We aim to evaluate the association of oncogenic viruses from Papillomaviridae, Herpesviridae, and Polyomaviridae families in HNSCCs and skin cancers. (2) Methods: A total of 26 fresh tumors (6/26 women) were tested for 67 viral agents using a multiplex PCR genotyping assay. (3) Results: A total of 23/26 (88.5%) samples were positive for one or more viruses. All the tested tumors were negative for any HPV (alpha or beta types). In total, we detected as positive samples: 16 (61.63%) EBV1, 12 (46.15%) HHV7, 8 (30.76%) MCV, 6 (23.07%) CMV and HHV6, 2 (7.69%) HHV8, 1 (3.8%) HPyV6 and EBV2. (4) Conclusions: We detected HPV-negative cases that are HPyV and HHV positive. In these fractions of HPV-negative HNSCCs cases, other oncogenic viruses may be involved, such as EBV1, MCV or CMV. Additional research is required for clarifying the natural history of these viruses in HNSCCs, as virus detection would have a decisive impact on diagnostic and decisional algorithms.