Publications by authors named "Vojnar B"

Postoperative nausea and vomiting (PONV) is defined as the joint or individual occurrence of nausea, retching and vomiting within 24-48h after an operation. The peripheral and central nervous systems are involved in the development of PONV. The pathogenesis of PONV is multifactorial.

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Aim: This cross-sectional study aimed to determine whether medical students with little to no ultrasound experience could correctly distinguish between 'pulsation present' and 'no pulsation present' after a short introductory video on the subject using ultrasound videos of the common carotid artery (CCA).

Methods: Ultrasound videos (B-mode, M-mode, and Color Doppler) of pulsatile (systolic blood pressure 70-80 mmHg) and non-pulsatile (cardiopulmonary bypass surgery, clamped aorta) CCA were created. These were demonstrated to the medical students for a period of ten seconds - corresponding to the duration of the manual pulse palpation during cardiopulmonary resuscitation (CPR).

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The correlation between circulating microbes and sepsis as well as proinflammatory diseases is increasingly gaining recognition. However, the detection of microbes' cell-free DNA (cfDNA), which exist at concentrations of a billion times lower than blood proteins, poses a significant challenge for early disease detection. Here, we present Nano mechanics combined with highly sensitive readout sequences to address the challenges of ultralow counts of disease biomarkers, thus enabling robust quantitative monitoring of chronic medical conditions at different stages of human disease progression.

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Pain is often the main symptom in trauma patients. Although peripheral nerve blocks (PNB) provide fast, safe, and adequate analgesia, they are currently only rarely used outside the perioperative setting. In Germany, intravenous analgesia with non-opioid analgesics (NOPA) and strong opioids is the main treatment concept for prehospital pain.

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Article Synopsis
  • The study aimed to create a model to understand how various factors influence the blood pressure and heart rate response to a combination medication (cafedrine and theodrenaline) used for treating low blood pressure in patients.
  • Data from 315 patients was analyzed using complex statistical methods, revealing that factors like age, sex, BMI, and other health conditions significantly affect the medication's effectiveness.
  • The findings will help doctors personalize treatment by considering these covariates to better manage blood pressure in patients.
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Background: Various prognostic prediction models exist for evaluating the risk of nausea and vomiting in the postoperative period (PONV). So far, no systematic comparison of these prognostic scores is available.

Method: A systematic literature search was carried out in seven medical databases to find publications on prognostic PONV models.

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Background: Intraoperative hypotension is associated with organ injury. Current intraoperative arterial pressure management is mainly reactive. Predictive haemodynamic monitoring may help clinicians reduce intraoperative hypotension.

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Objective: Intraoperative arterial hypotension (IOH) is associated with poor patient outcome. This study aims to compare the hemodynamic effects of Cafedrine/Theodrenaline (C/T) and Noradrenaline (NA) for the treatment of hypotension in patients who develop IOH after anesthesia induction.

Research Design And Methods: This is a national, randomized, parallel-group, multicenter, and open-label study.

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With focused transthoracic echocardiography (TTE) we rapidly and non-invasively receive up-to-date information on a patient's hemodynamic status. These can subsequently influence our therapy and thus our risk management. Postoperatively, TTE has proved its worth as an examination method in the recovery room and in the intensive care unit to promptly diagnose life-threatening causes of circulatory depression.

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Background: In the postoperative period, immediate recovery of muscular power is essential for patient safety, but this can be affected by anaesthetic drugs, opioids and neuromuscular blocking agents (NMBA). In this cohort study, we evaluated anaesthetic and patient-related factors contributing to reduced postoperative muscle power and pulse oximetric saturation.

Methods: We prospectively observed 615 patients scheduled for minor surgery.

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