Clinical Research Directory

Evaluation Of The Effects Of Changes In Operating Table Position On Perfusion Index And Spinal Anesthesia

The aim of this observational study is to investigate how table position affects the development of block in patients undergoing spinal anesthesia. Perfusion index measurements will be used to answer this question. Patients who will undergo perfusion index measurement during surgery will be included in the study. These patients will be compared with patients whose anesthesiologists chose not to position them on the operating table. The study is planned to continue for approximately 40 days, and the data collected during this period will be used for evaluation.

Perfusion Index and End Diastolic Velocity Ratios as Predictors of Supraclavicular Block Success in Vascular Access Surgery

This is a prospective observational study investigating the correlation between Perfusion Index (PI) ratio and End Diastolic Velocity (EDV) ratio as early predictors of successful supraclavicular brachial plexus block (SCBPB) in patients undergoing superficialization surgery of the upper limb.

Intraoperative Perfusion Index and Mortality

This study will use routinely collected perioperative data to examine the relationship between intraoperative perfusion index and postoperative outcomes, including mortality.

PPI in Weaning Prediction

The aim of this study is to evaluate the predictive role of the Peripheral Perfusion Index (PPI) in forecasting extubation success during the weaning process in intensive care unit (ICU) patients. The study will investigate the ability of PPI to predict extubation failure by comparing it with traditional weaning criteria, including the Rapid Shallow Breathing Index (RSBI), PaO₂/FiO₂ ratio, and respiratory rate.

Perfusion Index in Pediatric Low-Flow Anesthesia

This study aims to evaluate changes in perfusion index (PI) in pediatric patients undergoing elective surgery under low-flow anesthesia. PI will be monitored at multiple intraoperative and postoperative time points to assess its relationship with hemodynamic stability and depth of anesthesia. The study will also investigate whether low-flow anesthesia affects the incidence of emergence agitation (EA). Patients will be assigned to either low-flow or normal-flow anesthesia groups based on routine clinical practice. No intervention will be applied beyond standard care. The findings are expected to provide insight into the predictive value of PI in postoperative recovery and support safer anesthesia practices in pediatric populations.

Observational Study About the Use of Perfusion Index to Use Vasopressor in Sepsis

In this thesis we will use the current state of knowledge that PI can provide a reliable information about the state of peripheral microcirculation during the state of sepsis and septic shock in ICU patients and that can interfere with the timing of starting vasopressor treatment in sepsis and septic shock

The Role of Perfusion Index in Defining Postoperative Shivering

The relationship between perfusion index and postanesthetic shivering has been investigated in limited studies. Previous studies have investigated the relationship between postanesthetic shivering after total intravenous anesthesia and perfusion index. The relationship between inhalational anesthesia and postoperative shivering has been investigated, but the role of perfusion index on shivering has also been evaluated in limited studies. Therefore, investigators aimed to investigate whether perianesthetic changes in perfusion index in patients under general anesthesia (inhalation anesthesia and total intravenous anesthesia) correlate with the incidence of postanesthetic shivering and whether they are useful in predicting postanesthetic shivering.

Comparison of Perfusion Index Monitoring Using a Smartwatch and a Pulse Oximeter

The aim of the study is to experimentally compare measured perfusion index values between smartwatch and a medical grade pulse oximeter in healthy subjects at rest and with and without motion artifacts and during exercise.