Publications by authors named "Yovcho Yovtchev"

Purpose: The prognostic performance of urea-to-albumin ratio (UAR) has been assessed in various pulmonary and nonpulmonary conditions, but never in thoracic empyema. Therefore, our aim was to determine whether this marker has the ability to predict outcome in such patients.

Methods: A single-center retrospective study was conducted in a Clinic of Thoracic Surgery at a University Hospital between January 2021 and October 2023.

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The urea to albumin ratio (UAR) has shown a prognostic value in various clinical settings, however, no study has yet investigated its ability to predict outcome in complicated intra-abdominal infections (cIAIs). Therefore, our aim was to evaluate the association between UAR and mortality in such patients. A single-center prospective study including 62 patients with cIAIs was performed at a University Hospital Stara Zagora for the period November 2018 to August 2021.

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Aim: The ability of neutrophil CD16 (nCD16) expression to predict outcome in complicated intra-abdominal infections (cIAIs) has not yet been studied; therefore we aimed to evaluate its potential prognostic value in such patients.

Methods: Between November 2018 and August 2021 a single-center prospective study was performed in the Department of Surgical Diseases at a University Hospital Stara Zagora. A flow cytometry was used to measure the levels of nCD16 before surgery and on the 3rd postoperative day (POD) in 62 patients with cIAIs.

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There is still no study investigating the prognostic performance of CD14CD16, CD14CD16 and CD14CD16 monocyte subpopulations in complicated intra-abdominal infections (cIAIs); therefore, we aimed to evaluate the association between monocyte subtypes and outcome in such patients. A single-center prospective study was conducted at a University Hospital Stara Zagora between November 2018 and August 2021. Preoperatively and on the 3rd postoperative day (POD), we measured the levels of CD14CD16, CD14CD16 and CD14CD16 monocytes in peripheral blood using flow cytometry in 62 patients with cIAIs and 31 healthy controls.

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No study yet analyzed the prognostic abilities of neutrophil CD64 expression (nCD64) in complicated intra-abdominal infections (cIAIs), therefore our aim was to evaluate the possible association between this biomarker and outcome in such patients. This single-center prospective study was conducted in the Department of Surgical Diseases at a University Hospital 'Prof. Dr.

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Introduction: Prognostic scores in patients with local peritonitis (LP) have not yet been studied exhaustively.

Aim: We, therefore, aimed in this study to evaluate the ability of several scoring systems to predict death in LP.

Materials And Methods: A retrospective analysis including 68 patients with LP was conducted at Prof.

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Acute pancreatitis (AP) is characterized by a potent pro-inflammatory response and concomitant anti-inflammatory response leading to a state of immunosuppression. Decreased HLA (Human Leukocyte Antigen)-DR expression on monocytes is a reliable cellular marker of immune suppression. The main objective of this study was to investigate the clinical value of the percentage of peripheral blood CD14+ HLA-DR+ monocytes (mHLA-DR) for diagnosis and assessment of severity, development of organ failures (OF), local complications (LC), and infected necrosis (IN), and outcome in patients with AP.

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Complicated intra-abdominal infections (cIAIs) are still associated with high morbidity and mortality levels. Early prognostic evaluation is a great challenge, and a serious amount of resources have been used to find the perfect mortality predictor. Monocyte human leukocyte antigen-DR (mHLA-DR) expression has been studied as a biomarker in patients with sepsis and other infections.

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Introduction: Complicated intra-abdominal infections (cIAIs) remain a serious challenge because of their unacceptably high mortality rates. Among different prognostic scoring systems quick-sequential organ failure assessment (qSOFA) score is the most recent. However, as mortality predictor in surgical patients, qSOFA showed lack of sensitivity.

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Complicated intra-abdominal infections (cIaIs) respresent a serious cause of morbidity and mortality. Early diagnosis and well-timed treatment can improve patients' outcome, whereas the delay in management often result in rapid progression to circulatory collapse, multiple organ failure, and death. Neutrophil CD64 antigen expression has been studied for several years as infectious and sepsis biomarker and has several characteristics that make it good for clinical employment.

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Objective: Early detection of severe forms with unfavorable outcome is the cornerstone that could provide reduction of morbidity and mortality in acute pancreatitis (AP).

Methods: The percentage of circulating CD4CD25CD127 regulatory T-cells (Tregs) was determined at admission, on the 48th hour, and on the fifth day in 72 patients with AP. We divided patients in 2 groups-Sev1, which includes 19 patients (26.

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Background: No definitive data about open abdomen (OA) epidemiology and outcomes exist. The World Society of Emergency Surgery (WSES) and the Panamerican Trauma Society (PTS) promoted the International Register of Open Abdomen (IROA).

Methods: A prospective observational cohort study including patients with an OA treatment.

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Development of acute pancreatitis illustrates the need to understand the basic mechanisms of disease progression to drive the exploration of therapeutic options. Cytokines play a major role in the pathogenesis of acute pancreatitis as underlying systemic inflammatory response, tissue damage, and organ dysfunction. However, little is known about circulating concentrations of these inflammatory markers and their real impact on clinical practice.

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Purpose: To evaluate the detection of epithelial cells in bone marrow of breast cancer patients as an indicator of metastatic disease.

Patients And Methods: Between 2001 and 2005, bone marrow biopsies were taken from 79 breast cancer patients during primary surgery. Specimens were stained immunocytochemically for epithelial cells expressing cytokeratins or epithelial membrane antigen.

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