Browsing by Author "Doğanay, Zahide"

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    Pubmed
    Can Ultrasound-Guided Femoral Vein Measurements Predict Spinal Anesthesia-Induced Hypotension in Non-Obstetric Surgery? A Prospective Observational Study.
    (2022-11-09T00:00:00Z) Yılmaz, Ayşe; Demir, Ufuk; Taşkın, Öztürk; Soylu, Veysel Garani; Doğanay, Zahide
    : To investigate whether ultrasound (US)-guided femoral vein (FV) and inferior vena cava (IVC) measurements obtained before spinal anesthesia (SA) can be utilized to predict SA-induced hypotension (SAIH) and to identify risk factors associated with SAIH in patients undergoing non-obstetric surgery under SA. : This was a prospective observational study conducted between November 2021 and April 2022. The study included 95 patients over the age of 18 with an American Society of Anesthesiologists (ASA) physical status score of 1 or 2. The maximum and minimum diameters of FV and IVC were measured under US guidance before SA initiation, and the collapsibility index values of FV and IVC were calculated. Patients with and without SAIH were compared. : SAIH was observed in 12 patients (12.6%). Patients with and without SAIH were similar in terms of age [58 (IQR: 19-70) vs. 48 (IQR: 21-71; = 0.081) and sex (males comprised 63.9% of the SAIH and 75.0% of the non-SAIH groups) ( = 0.533). According to univariate analysis, no significant relationship was found between SAIH and any of the FV or IVC measurements. Multiple logistic regression analysis revealed that having an ASA class of 2 was the only independent risk factor for SAIH development ( = 0.014), after adjusting for age, sex, and all other relevant parameters. : There is not enough evidence to accept the feasibility of utilizing US-guided FV or IVC measurements to screen for SAIH development in patients undergoing non-obstetric surgery under SA. For this, multicenter studies with more participants are needed.
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    Pubmed
    Does prolonged prone position affect intracranial pressure? prospective observational study employing Optic nerve sheath diameter measurements.
    (2023-03-14T00:00:00Z) Demir, Ufuk; Taşkın, Öztürk; Yılmaz, Ayşe; Soylu, Veysel G; Doğanay, Zahide
    Our aim in this observational prospective study is to determine whether the prone position has an effect on intracranial pressure, by performing ultrasound-guided ONSD (Optic Nerve Sheath Diameter) measurements in patients with acute respiratory distress syndrome (ARDS) ventilated in the prone position.