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result(s) for
"Alexa, Alexandru Leonard"
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Neutrophils and Anesthetic Drugs: Implications in Onco-Anesthesia
by
Ionescu, Daniela
,
Alexa, Alexandru Leonard
,
Sargarovschi, Sergiu
in
Anesthesia
,
Anesthesia - adverse effects
,
Anesthetics - adverse effects
2024
Apart from being a significant line of defense in the host defense system, neutrophils have many immunological functions. Although there are not many publications that accurately present the functions of neutrophils in relation to oncological pathology, their activity and implications have been studied a lot recently. This review aims to extensively describe neutrophils functions’; their clinical implications, especially in tumor pathology; the value of clinical markers related to neutrophils; and the implications of neutrophils in onco-anesthesia. This review also aims to describe current evidence on the influence of anesthetic drugs on neutrophils’ functions and their potential influence on perioperative outcomes.
Journal Article
Oxidative stress as a potential target in acute kidney injury
by
Ciumarnean, Lorena
,
Tomsa, Anamaria Magdalena
,
Alexa, Alexandru Leonard
in
Acute kidney injury
,
Anatomy and Physiology
,
Apoptosis
2019
Acute kidney injury (AKI) is a major problem for health systems being directly related to short and long-term morbidity and mortality. In the last years, the incidence of AKI has been increasing. AKI and chronic kidney disease (CKD) are closely interconnected, with a growing rate of CKD linked to repeated and severe episodes of AKI. AKI and CKD can occur also secondary to imbalanced oxidative stress (OS) reactions, inflammation, and apoptosis. The kidney is particularly sensitive to OS. OS is known as a crucial pathogenetic factor in cellular damage, with a direct role in initiation, development, and progression of AKI. The aim of this review is to focus on the pathogenetic role of OS in AKI in order to gain a better understanding. We exposed the potential relationships between OS and the perturbation of renal function and we also presented the redox-dependent factors that can contribute to early kidney injury. In the last decades, promising advances have been made in understanding the pathophysiology of AKI and its consequences, but more studies are needed in order to develop new therapies that can address OS and oxidative damage in early stages of AKI.
We searched PubMed for relevant articles published up to May 2019. In this review we incorporated data from different types of studies, including observational and experimental, both in vivo and in vitro, studies that provided information about OS in the pathophysiology of AKI.
The results show that OS plays a major key role in the initiation and development of AKI, providing the chance to find new targets that can be therapeutically addressed.
Acute kidney injury represents a major health issue that is still not fully understood. Research in this area still provides new useful data that can help obtain a better management of the patient. OS represents a major focus point in many studies, and a better understanding of its implications in AKI might offer the chance to fight new therapeutic strategies.
Journal Article
Continuous Non-Invasive Hemodynamic Monitoring in Cirrhotic Patients—Friend or Foe?
2025
Background and Objectives: Liver cirrhosis leads to significant hemodynamic changes, particularly portal hypertension and a hyperdynamic circulatory state. Traditional invasive methods for hemodynamic monitoring, while accurate, carry risks such as infection and hemorrhage in a patient predisposed to these conditions. This study evaluates the accuracy of non-invasive continuous hemodynamic monitoring compared to a minimally invasive method in patients with decompensated liver cirrhosis. Materials and Materials and Methods: The study enrolled 51 patients with decompensated liver cirrhosis requiring continuous hemodynamic monitoring in the ICU. Patients underwent simultaneous monitoring via the minimally invasive FloTrac system and continuous non-invasive ClearSight sensor over 24 h, with measurements registered at 6 h intervals. Hemodynamic parameters measured included cardiac output (CO), cardiac index (CI), stroke volume (SV), stroke volume variation (SVV), systemic vascular resistance (SVR), and mean arterial pressure (MAP). Results: Significant discrepancies were observed between the two monitoring methods for most parameters, particularly CO, CI, and MAP, at most time intervals. However, SVV measurements showed no significant differences, indicating similar efficacy in assessing fluid responsiveness between the devices. Conclusions: The ClearSight system, although a valuable non-invasive alternative, demonstrated lower accuracy compared to the FloTrac system for hemodynamic measurements in patients with decompensated liver cirrhosis. Its effectiveness in assessing fluid responsiveness, particularly by SVV, suggests it could play a role in the monitoring of these patients, especially when invasive techniques have increased risks.
Journal Article
Trends in Preoperative Airway Assessment
by
Negrut, Matei Florin
,
Crihan, Mirela
,
Marchis, Ioan Florin
in
airway assessment
,
Airway management
,
Algorithms
2024
Airway management is a vital part of anesthesia practices, intensive care units, and emergency departments, and a proper pre-operative assessment can guide clinicians’ plans for securing an airway. Complex airway assessment has recently been at the forefront of anesthesia research, with a substantial increase in annual publications during the last 20 years. In this paper, we provide an extensive overview of the literature connected with pre-operative airway evaluation procedures, ranging from essential bedside physical examinations to advanced imaging techniques such as ultrasound (US), radiography, computed tomography (CT), and magnetic resonance imaging (MRI). We discuss transnasal endoscopy, virtual endoscopy, 3D reconstruction-based technologies, and artificial intelligence (AI) as emerging airway evaluation techniques. The management of distorted upper airways associated with head and neck pathology can be challenging due to the intricate anatomy. We present and discuss the role of recent technological advancements in recognizing difficult airways and assisting clinical decision making while highlighting current limitations and pinpointing future research directions.
Journal Article
Fat Embolism Syndrome Mimicking a COVID-19 Infection
2021
Fat embolism syndrome (FES) is a multiple organ disorder that can appear after pelvic and long bone fractures. The most common clinical finding is hypoxia, accompanied by diffuse petechiae, alveolar infiltrates, altered mental status, fever, polypnea, and tachycardia. We present a mild FES case on a 32-year-old man with no medical history admitted for an orthopedic procedure, following both tibia and fibulae fractures. Thirty hours postoperatively, he developed respiratory failure with altered mental status and needed admission in the intensive care unit. The chest radiography and later chest tomography raised the suspicion of a COVID-19 disease, even if our first suspicion was FES. After being carefully investigated in a dedicated COVID-19 ward and three negative RT-PCR SARS-CoV-2 tests, he returned to continue supportive treatment in the orthopedic intensive care ward. His evolution was favorable with discharge at ten days, without sequelae. In the context of the SARS CoV-2 pandemic, differential diagnosis has become an increasingly challenging process. Added to the variety of preexisting respiratory diseases and disorders, the COVID-19 infection, with its symptomatology so similar to multiple other pulmonary diseases, must not cloud our clinical judgement.
Journal Article