Nikolaos Memos

Dr. Nikolaos Memos

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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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11 October 2024 in Cancers
Verified
Journal Article
Open access
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Anastasia StergioulaAnastasia Stergioula
Anastasia Stergioula
TKTheodoros Kormas
Theodoros Kormas
SKStefania Kokkali
Stefania Kokkali
NMNikolaos Memos
Nikolaos Memos
EPEvaggelos Pantelis
Evaggelos Pantelis
GAGeorgios Agrogiannis
Georgios Agrogiannis
Background/Objectives: The relationship between pathologic findings in soft tissue sarcoma (STS) after neoadjuvant treatment and oncological outcomes remains uncertain due to varying evaluation methods and cut-off values. This study aims to assess pathologic findings after neoadjuvant radiotherapy in STS using the EORTC-STBSG response score and evaluate its prognostic value. Methods: Clinical and outcome data from 44 patients were reviewed. Resected specimens were re-evaluated to measure viable cells, necrosis, fibrosis, and hyalinization. Local recurrence-free survival (LRFS), distant metastasis-free survival (DMFS), and overall survival (OS) were analyzed using Kaplan–Meier survival analysis. Cox proportional hazards regression was used for univariate and multivariate analyses to correlate outcomes with pathologic response. Results: The median percentages of viable cells, necrosis, and fibrosis/hyalinization were 20%, 11%, and 40%, respectively. A pathologic complete response (pCR), defined as ≤5% viable cells, was achieved in 25% of cases. Local recurrence occurred in 33% of cases, with a significantly higher rate of 64% after R1 resection compared to 22% after R0 resection. Distant metastases were observed in 42% of patients, primarily in the lungs. The 3-year rates for LRFS, DMFS, and OS were 65%, 54%, and 67%, respectively. A correlation between outcomes and tumor size, grade and histological subtype was observed. Classifying pathologic response by the EORTC-STBSG score failed to show an association with outcomes. Patients achieving pCR showed lower risk of LR and improved OS. Conclusions: While the EORTC-STBSG score did not show a prognostic value, resection specimens with ≤5% viable cells were linked to improved LRFS and OS.

25 May 2022 in Journal of Surgical Case Reports
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Journal Article
Open access
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TKThomas Kotsis
Thomas Kotsis
PCPanagitsa Christoforou
Panagitsa Christoforou
ΑΧΑΧΙΛΛΕΥΣ ΧΑΤΖΗΙΩΑΝΝΟΥ
ΑΧΙΛΛΕΥΣ ΧΑΤΖΗΙΩΑΝΝΟΥ
NMNikolaos Memos
Nikolaos Memos
Kassiani TheodorakiKassiani Theodoraki
Kassiani Theodoraki
MKManousos M. Konstadoulakis
Manousos M. Konstadoulakis
We report the case of a single 46-year-old woman presenting with huge uterine fibroids growing for the last 12 years, resulting in a recent common iliac vein thrombosis. Due to the high risk for pulmonary embolism, an occluding balloon was inserted through the right jugular vein before the abdominal incision and occluded the vena cava just inferior to the renal veins. The tumor was easily mobilized, and the vena cava bifurcation was exposed and controlled until the uterus with the masses was resected. We recommend this method for oncovascular surgeries involving deep vein thrombosis and vein thromboembolism.

13 September 2024 in Biomedicines
Verified
Journal Article
Open access
PDF file
LCLeonidas Chardalias
Leonidas Chardalias
ASAndroniki-Maria Skreka
Androniki-Maria Skreka
NMNikolaos Memos
Nikolaos Memos
ANAlexandra-Stavroula Nieri
Alexandra-Stavroula Nieri
DPDimitrios Politis
Dimitrios Politis
IPIoannis Papaconstantinou
Ioannis Papaconstantinou
Anemia is the most common extraintestinal symptom of colorectal cancer, with a prevalence of 30–75%. While the preoperative anemia in this patient population has been well studied and its correction 4–6 weeks prior to surgery is recommended when feasible, there is a paucity of data regarding the management of postoperative anemia, which has a prevalence of up to 87% in these patients. To address this issue, we conducted an observational cohort study of surgically treated postoperative anemic patients with colorectal cancer. The objective of this study was to evaluate the effect of intravenous ferric carboxymaltose on the correction of postoperative anemia by postoperative day 30 (POD30). The primary outcome was the change in hemoglobin on POD30, while the secondary outcomes were the change in iron and other laboratory parameters, postoperative complications and transfusions. The results demonstrated that patients treated with intravenous iron exhibited a significant increase in hemoglobin levels by POD30, along with a concomitant increase in hematocrit, ferritin, and transferrin saturation levels, compared to the control group. The findings imply that patients undergoing colorectal cancer surgery with anemia that was not corrected in the preoperative setting may benefit from early postoperative intravenous iron infusion.