Bogdan Cosmin Tanase

Dr. Bogdan Cosmin Tanase


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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Madalina (Preda) SolomonMadalina (Preda) Solomon
Madalina (Preda) Solomon
BTBogdan Cosmin Tanase
Bogdan Cosmin Tanase
DZDaniela Luminita Zob
Daniela Luminita Zob
Adelina Silvana GheorgheAdelina Silvana Gheorghe
Adelina Silvana Gheorghe
CLCristian Lungulescu
Cristian Lungulescu
Beatrice MahlerBeatrice Mahler
Beatrice Mahler
Lung cancer and pulmonary tuberculosis are two significant public health problems that continue to take millions of lives each year. They may have similar symptoms and, in some cases, are diagnosed simultaneously or may have a causal relationship. In tuberculosis disease, the chronic inflammation, different produced molecules, genomic changes, and fibrosis are believed to be important factors that may promote carcinogenesis. As a reverse reaction, the development of carcinogenesis and the treatment may induce the reactivation of latent tuberculosis infection. Moreover, the recently used checkpoint inhibitors are a debatable subject since they help treat lung cancer but may lead to the reactivation of pulmonary tuberculosis and checkpoint-induced pneumonitis. Pulmonary rehabilitation is an effective intervention in post-tuberculosis patients and lung cancer patients and should be recommended to improve outcomes in these pathologies.

3 January 2023 in Diagnostics
Verified
Journal Article
Open access
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OTOana Gabriela Trifanescu
Oana Gabriela Trifanescu
LGLaurentia Nicoleta Gales
Laurentia Nicoleta Gales
BTBogdan Cosmin Tanase
Bogdan Cosmin Tanase
SMSerban Andrei Marinescu
Serban Andrei Marinescu
RTRaluca Alexandra Trifanescu
Raluca Alexandra Trifanescu
RARodica Maricela Anghel
Rodica Maricela Anghel
Background: Vascular endothelial growth factor (VEGF) plays an important role in tumor progression in ovarian cancer, but the complex mechanism and interaction with oxidative stress are not fully understood. Methods: A prospective study included 52 patients with ovarian adenocarcinoma stage IIIA-IV. Serum VEGF and reactive oxygen species (ROS) such as malondialdehyde and ceruloplasmin were measured. Results: VEGF levels were elevated (mean 1014.7 ± 165 pg/mL), especially in patients with macroscopic residual disease (1058 vs. 810 pg/mL, p = 0.0001). Median progression-free survival (PFS) and overall survival (OS) were 6 and 40 months in patients with a very high VEGF (over 1200 pg/mL), 11 and 48 months in patients with VEGF between 1000–1200 pg/mL, 18 and 84 months in patients with VEGF between 800–1000 pg/mL, and not reached in patients with normal VEGF. Increased VEGF values were associated with a 2.6-fold increased risk of disease progression (HR = 2.60, 95% CI 1.69–3.99), and a 1.4-fold increased risk of death (HR = 1.4, 95% CI 1.15–1.91, p = 0.002). Receiver operator characteristic (ROC) curves were used to validate VEGF as a prognostic factor and the area under the curve (AUC) was 0.814, p = 0.036 for PFS and 0.729, p = 0.043, for OS. There was a positive correlation between VEGF and malondialdehyde, Pearson coefficient of 0.35, p = 0.0001. Conclusions: VEGF and malondialdehyde are important prognostic markers in ovarian cancer, especially in macroscopic residual disease, and there is a positive correlation between angiogenesis and oxidative stress.

9 March 2023 in Diagnostics
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Journal Article
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Laurentiu SimionLaurentiu Simion
Laurentiu Simion
VRVlad Rotaru
Vlad Rotaru
CCCiprian Cirimbei
Ciprian Cirimbei
Daniela Cristina StefanDaniela Cristina Stefan
Daniela Cristina Stefan
MGMirela Gherghe
Mirela Gherghe
Elena ChitoranElena Chitoran
Elena Chitoran
(1) Background: Among new anti-angiogenesis agents being developed and ever-changing guidelines indications, the question of the benefits/safety ratio remains unclear. (2) Methods: We performed a systematic review combined with a meta-analysis of 23 randomized controlled trials (12,081 patients), evaluating overall survival (OS), progression free survival (PFS) and toxicity (grade ≥ 3 toxic effects, type, and number of all adverse effects. (3) Results: The analysis showed improvement of pooled-PFS (HR, 0.71; 95% CI, 0.64–0.78; I2 = 77%; p < 0.00001) in first-line (HR, 0.85; 95% CI, 0.78–0.93; p = 0.0003) or recurrent cancer (HR, 0.62; 95% CI, 0.56–0.70; p < 0.00001) and regardless of the type of anti-angiogenesis drug used (Vascular endothelial growth factor (VEGF) inhibitors, VEGF-receptors (VEGF-R) inhibitors or angiopoietin inhibitors). Improved OS was also observed (HR, 0.95; 95% CI, 0.90–0.99; p = 0.03). OS benefits were only observed in recurrent neoplasms, both platinum-sensitive and platinum-resistant neoplasms. Grade ≥ 3 adverse effects were increased across all trials. Anti-angiogenetic therapy increased the risk of hypertension, infection, thromboembolic/hemorrhagic events, and gastro-intestinal perforations but not the risk of wound-related issues, anemia or posterior leukoencephalopathy syndrome. (4) Conclusions: Although angiogenesis inhibitors improve PFS, there are little-to-no OS benefits. Given the high risk of severe adverse reactions, a careful selection of patients is required for obtaining the best results possible.

15 June 2023 in Diagnostics
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Laurentiu SimionLaurentiu Simion
Laurentiu Simion
Elena ChitoranElena Chitoran
Elena Chitoran
CCCiprian Cirimbei
Ciprian Cirimbei
Daniela Cristina StefanDaniela Cristina Stefan
Daniela Cristina Stefan
ANAriana Neicu
Ariana Neicu
VRVlad Rotaru
Vlad Rotaru
The aim of our study is to present the particularities of a specific subset of gynecological cancer patients in Romania. We present a review of synchronous gynecological neoplasia (SGN) treated in the Bucharest Oncological Institute’s surgery departments over a decade. Between 2012 and 2022, 7419 female patients with genital malignancies were treated. We identified 36 patients with invasive synchronous primary gynecological cancers (0.5%) and 12 cases with one primary gynecological and another primary invasive pelvic cancer (rectal/bladder). All recurrent, metastatic, or metachronous tumors detected were excluded. Demographic data, personal history, presenting symptoms, pathologic findings, staging, treatment, and evolution for each case were recorded. Usually, the most common SGN association is between ovarian and endometrial cancer of endometrioid differentiation (low-grade malignancies with very good prognosis). However, we noticed that, given the particularities of the Romanian medical system, the most frequent association is between cervical and endometrial, followed by cervical and ovarian cancers. Moreover, the cancer stage at diagnosis is more advanced. In countries with low HPV vaccination rate and low adherence to screening programs, SGNs can present as extremely advanced cases and require extensive surgery (such as pelvic exenterations) to achieve radicality. This multimodal treatment in advanced cases with high tumor burden determines a reduction in survival, time until progression, and quality of life.

2 February 2023 in Preprints.org
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Open access
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Laurentiu SimionLaurentiu Simion
Laurentiu Simion
VRVlad Rotaru
Vlad Rotaru
CCCiprian Cirimbei
Ciprian Cirimbei
Daniela Cristina StefanDaniela Cristina Stefan
Daniela Cristina Stefan
MGMirela Gherghe
Mirela Gherghe
Elena ChitoranElena Chitoran
Elena Chitoran
(1)Background: Among new anti-angiogenetic agents being developed and everchanging guidelines indications, the question of benefits/safety ratio remains unclear. (2)Methods: we have conducted a systematic review and meta-analysis of 25 randomized controlled trials (15487 patients), evaluating overall survival – OS, progression free survival– PFS and toxicity (grade ≥3 adverse effects, type and number of all adverse effects. (3)Results: analysis showed improvement of pooled-PFS (HR 0.72, 95%CI 0.66–0.78, I2 = 77%, P<0.00001) regardless of treatment settings (first-line - HR 0.83, 95%CI 0.77-0.90, P<0.00001, recurrent cancer – HR 0.61, 95%CI 0.54-0.68, P<0.00001 or maintenance – HR 0.82, 95%CI 0.67-1.00, P=0.04) and type of anti-angiogenetic drug used (VEGF inhibitors, VEGF-R inhibitors or angiopoietin inhibitors). Improved OS was also observed (HR 0.95, 95%CI 0.91–0.99, P=0.02). OS benefits were only observed in recurrent platinum-sensitive or platinum-resistant cancers. Grade≥3 adverse effects were increased across all trials. Anti-angiogenetic therapy increased the risk of hypertension, infection, thromboembolic/ hemorrhagic events, gastro-intestinal perforations but not the risk of wound related issues, anemia or posterior leukoencephalopathy syndrome. (4)Conclusions: Although angiogenesis inhibitors improve PFS, there is little to no OS benefits. Given the high risk of severe adverse reactions a careful selection of patients is required for obtaining the best results possible.

6 April 2026 in Medicina
Verified
Journal Article
Open access
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BTBogdan Cosmin Tanase
Bogdan Cosmin Tanase
THTeodor Horvat
Teodor Horvat
ABAlin Burlacu
Alin Burlacu
Elena ChitoranElena Chitoran
Elena Chitoran
VRVlad Rotaru
Vlad Rotaru
Laurentiu SimionLaurentiu Simion
Laurentiu Simion
Introduction: Lymph node status is a key prognostic factor of lung cancer. Although video-assisted thoracoscopic surgery (VATS) is widely used for early-stage disease, its consistency in achieving thorough lymph node dissection remains debated. While many studies show outcomes comparable to thoracotomy, others question its reliability for accurate staging in advanced cases. This study compared the oncologic efficacy of VATS and thoracotomy in pulmonary adenocarcinoma, focusing on lymph node dissection and postoperative outcomes. Materials and Methods: A retrospective analysis was conducted on 111 consecutive patients who underwent curative-intent resection for pulmonary adenocarcinoma between 2019 and 2023 at the “Prof. Dr. Alexandru Trestioreanu” Oncological Institute, 52 undergoing thoracotomy and 59 Video-Assisted Thoracoscopic Surgery (VATS). Results: Demographic and clinical characteristics were comparable between groups. Compared with thoracotomy, VATS was associated with a significantly higher number of harvested lymph nodes at stations 7 and 10. No significant differences between groups in the number of positive lymph nodes, postoperative morbidity, or 30-day mortality were observed. Conclusions: VATS appears to provide comparable lymph node retrieval and short-term outcomes to open surgery. These findings add valuable data from an underrepresented Eastern European population and support the broader adoption of minimally invasive techniques in lung cancer surgery.