Vasile-Claudiu Mihai

Dr. Vasile-Claudiu Mihai

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Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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18 November 2023 in Biomedicines
Verified
Journal Article
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AJAlina Ecaterina Jucan
Alina Ecaterina Jucan
OGOtilia Gavrilescu
Otilia Gavrilescu
MDMihaela Dranga
Mihaela Dranga
IPIolanda Valentina Popa
Iolanda Valentina Popa
IMIoana Ruxandra Mihai
Ioana Ruxandra Mihai
CMCatalina Mihai
Catalina Mihai
Inflammatory bowel disease (IBD) comprises two types of chronic intestinal disorders: Crohn’s disease and ulcerative colitis. In long-standing ulcerative colitis disease activity, histological persistent inflammation has been linked to an increased risk of relapse, and long-term corticosteroid use, even when endoscopic remission is reached. In Crohn’s disease, the discontinuous nature of lesions and transmural inflammation have limited the standardized histological assessment. The current evidence from research proposes that besides clinical and endoscopic healing, the achievement of histological healing constitutes an endpoint to assess disease activity and remission in IBD patients concerning better long-term disease outcomes. Histological alterations may persist even in the absence of endoscopic lesions. For these reasons, new advanced techniques promise to revolutionize the field of IBD by improving the endoscopic and histologic assessment, disease characterization, and ultimately patient care, with an established role in daily practice for objective assessment of lesions. This review outlines the importance of including microscopic evaluation in IBD, highlighting the clinical benefits of a deep state of disease remission using validated diagnostic methods and scoring systems for daily clinical practice.

12 April 2024 in Diagnostics
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Journal Article
Open access
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VMVasile-Claudiu Mihai
Vasile-Claudiu Mihai
LMLiliana Moisii
Liliana Moisii
IRIOANA-IRINA REZUȘ
IOANA-IRINA REZUȘ
AJAlina Ecaterina Jucan
Alina Ecaterina Jucan
MAMihaela Cristiana Andronic
Mihaela Cristiana Andronic
CMCatalina Mihai
Catalina Mihai
Inflammatory bowel diseases (IBDs) affect over 4.9 million individuals worldwide. Colonoscopy (CS) is the gold-standard technique for diagnosis. The remissive–recurrent pattern of evolution raises the need for non-invasive techniques to monitor disease activity. This review aims to present the advantages of intestinal ultrasound (IUS) in managing IBDs. Our search was conducted on the PubMed, Embase, and Cochrane (CENTRAL) databases, selecting original studies comparing IUS with other imaging and invasive monitoring methods. Our search yielded 8654 results, of which 107 met the inclusion criteria. Increased bowel wall thickness (BWT) and colour Doppler signal (CDS) are discriminative for disease activity. IUS can predict disease outcomes and detect response to treatment or postoperative recurrence. Contrast-enhanced ultrasound (CEUS) and elastography help differentiate fibrotic from inflammatory stenoses. The difficult rectal assessment limits the use of IUS in ulcerative colitis (UC). Transmural healing may develop as a therapeutic target as it is associated with better outcomes. Patients are compliant with this technique, and its results correlate well with CS and other imaging methods. In conclusion, IUS proves to be essential in assessing IBD activity and treatment response, predicting outcomes and detecting complications. CEUS and elastography are researched to improve the diagnostic values of IUS.

Verified
Journal Article
Open access
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AJAlina Ecaterina Jucan
Alina Ecaterina Jucan
GSGeorgiana Elena Sârbu
Georgiana Elena Sârbu
VMVasile-Claudiu Mihai
Vasile-Claudiu Mihai
CACarmen Atodiresei
Carmen Atodiresei
SJSimona Stefania Juncu
Simona Stefania Juncu
CMCatalina Mihai
Catalina Mihai
Ulcerative colitis (UC) is a chronic, relapsing inflammatory bowel disease; non-invasive biomarkers that accurately reflect the endoscopic and histological activity of UC require validation. Therefore, our study focused on exploring the potential of serum oncostatin M (OSM) as a biomarker for evaluating UC severity. A total of UC 89 eligible participants (≥18 years) underwent extensive clinical and paraclinical evaluation. Clinical, endoscopic, and histological activity were assessed using the partial Mayo score (pMS), the Mayo endoscopic score (MES), and the Nancy Histological Index (NHI), respectively. Serum OSM levels were determined by ELISA test and measured in pg/mL; fecal calprotectin (FC) was measured in µ/g. In our study, serum OSM was significantly associated with all four outcome measures: higher OSM levels predicted higher pMS (β = 0.471, p < 0.001, R2 = 0.222), MES (β = 0.422, p < 0.001, R2 = 0.178), NHI (β = 0.422, p < 0.001, R2 = 0.256), and FC (β = 0.431, p < 0.001, R2 = 0.186). Furthermore, ROC curve analyses demonstrated that OSM had excellent diagnostic accuracy for active disease, particularly in relation to histological inflammation (AUC = 0.967). In comparison, FC showed good but slightly lower accuracy (AUC = 0.875). Notably, OSM also outperformed FC in discriminating histological remission. Pairwise ROC curve analyses using DeLong’s test further confirmed the diagnostic accuracy of OSM, FC, and combined biomarker scores (OSM+FC) across clinical, endoscopic, and histological endpoints. The combined score PRE1 (OSM + FC based on NHI) achieved perfect discrimination (AUC = 1.000, p < 0.001). Composite models PRE2 and PRE3 (OSM+FC based on MES and pMS) improved diagnostic accuracy relative to OSM, confirming the value of combining OSM with FC. Although both outperformed OSM (p < 0.05), neither achieved a superior advantage over FC. Serum OSM is strongly associated with histological activity in UC and demonstrates superior performance compared with FC in assessing histological remission.

31 March 2025 in Life
Verified
Journal Article
Open access
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AJAlina Ecaterina Jucan
Alina Ecaterina Jucan
OGOtilia Gavrilescu
Otilia Gavrilescu
VMVasile-Claudiu Mihai
Vasile-Claudiu Mihai
MDMihaela Dranga
Mihaela Dranga
MAMihaela Cristiana Andronic
Mihaela Cristiana Andronic
CMCatalina Mihai
Catalina Mihai
Backwash ileitis (BWI) refers to inflammation in the distal ileum in patients with extensive ulcerative colitis (UC) that is thought to be caused by a “reflux” or “backwash” of colonic contents. In the absence of well-defined diagnostic criteria for BWI, more recently, the term UC-associated ileitis was proposed in favor of the backwash theory, which questions the existence of backwash ileitis as a distinct disease-specific subset of patients. Moreover, distinguishing UC-associated BWI from terminal ileitis of Crohn’s disease or other conditions could be a diagnostic challenge and significantly affect treatment management. Therefore, clinical, endoscopic, histologic, and imagistic diagnostic features may aid in making this distinction. This literature review related to BWI outlines the hypothesis that the ileum may also become involved in UC as a primary manifestation of UC based on recent findings. This study also highlights the possibility that associated ileitis in UC patients may represent a potential risk factor for neoplasia, a positive association with primary sclerosing cholangitis, and a higher risk for the subsequent development of pouchitis after restorative proctocolectomy. It synthesizes recent key findings and highlights areas for further research.

4 March 2025 in Diagnostics
Verified
Journal Article
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IRIOANA-IRINA REZUȘ
IOANA-IRINA REZUȘ
VMVasile-Claudiu Mihai
Vasile-Claudiu Mihai
DIDiana-Elena Iov
Diana-Elena Iov
AOAndrei Olteanu
Andrei Olteanu
VVVlad Ionut Vlasceanu
Vlad Ionut Vlasceanu
STSergiu Tudose-Timofeiov
Sergiu Tudose-Timofeiov
Background: Despite advancements in prevention and treatment, peptic ulcer disease (PUD) remains a public health burden, with potentially high mortality rates when not managed properly. Recent studies indicate bleeding as the most prevalent complication, followed by perforation or penetration into adjacent organs and pyloric obstruction. In rare cases, posterior wall or greater curvature ulcers of the stomach can penetrate, leading to splenic artery pseudoaneurysms. With nonspecific symptoms and low incidence, it is highly important that these entities are not overlooked in the diagnosis of patients with upper gastrointestinal bleeding. Case Report: We present the case of a 44-year-old patient presenting for upper abdominal pain and haematemesis while being haemodynamically stable. Emergency ultrasound described a dysmorphic spleen, with a transonic image with a Doppler signal in the splenic hilum. Upper gastrointestinal tract endoscopy detected a blood-filled stomach, without the possibility of identifying the bleeding source. The CT scan revealed active bleeding with peri splenic haematoma. Intraoperatively, a posterior gastric wall penetration into the spleen was identified, and an atypical gastric resection and caudal splenopancreatectomy were performed. The postoperative course was marked by the identification of a staple line leak in the upper pole of the stomach, which was treated conservatively, with a favourable outcome, and the patient was discharged after two weeks. Conclusions: Upper gastrointestinal tract haemorrhage needs fast intervention and suitable management. The multidisciplinary team plays a key role in identifying and treating rare causes such as penetration into the splenic hilum.

18 August 2026 in Biomedicines
Verified
Journal Article
Open access
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VMVasile-Claudiu Mihai
Vasile-Claudiu Mihai
MSMarius Lucian Savin
Marius Lucian Savin
IRIOANA-IRINA REZUȘ
IOANA-IRINA REZUȘ
VBVasile Lucian BOICULESE
Vasile Lucian BOICULESE
AJAlina Ecaterina Jucan
Alina Ecaterina Jucan
CMCatalina Mihai
Catalina Mihai
Introduction: Chronic inflammation in Crohn’s disease (CD) is associated with systemic alterations, including the loss of skeletal muscle mass. While nutritional deficits are known to impact clinical trajectories, the specific prognostic value of muscle wasting remains underutilised. The primary objective of this study is to construct a composite score integrating sarcopenia with paraclinical parameters to predict an unfavourable disease outcome (UO) more accurately. Materials and Methods: We conducted a retrospective study of patients with CD who were hospitalized at our institution between January 2020 and June 2024 and were treated with biologics or small molecules. Using previous CT scans, we measured skeletal muscle area (SMA) and skeletal muscle index (SMI) to assess their association with disease outcomes. Univariate and multivariate analyses were performed to identify significant predictors of UO, and Area Under the Curve (AUC) values were calculated to assess the predictive performance and to construct a composite prognostic score. Results: Multivariate analysis in the study group (52 patients) identified sarcopenia (low SMI), faecal calprotectin levels >129 μg/g, and complicated disease behaviour (Montreal B2/B3) as independent predictors of UO. Integrating these parameters into a composite risk score resulted in a promising predictive model with an Area Under the Curve (AUROC) of 0.864, significantly outperforming individual biomarkers. Conclusions: We performed a hypothesis-generating study suggesting that nutritional assessment in CD could provide an important benefit in stratifying patients for whom additional nutritional interventions may enhance the long-term outcomes.