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International Articles
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Effects of External Oblique Intercostal Plane Block and Subcostal Transversus Abdominis Plane Block on Postoperative Pulmonary Functions After Laparoscopic Cholecystectomy: A Prospective Observational Study

Gürbüz, Z , Incegül, BGK , Baytar, Ç , Baytar, MS , Bollucuoglu, K (5 more authors)
JOURNAL OF PAIN RESEARCH Volume 19 | 2026

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Effect of Continuous Non-Invasive Hemoglobin Monitoring on Blood Transfusion and Mortality in Hip Surgeries: A Randomized Controlled Study

Yesilnacar, MED , Piskin, Ö , Köksal, G , Baytar, Ç , Okyay, RD (4 more authors)
JOURNAL OF CLINICAL PRACTICE AND RESEARCH Volume 48 | 2026

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Effect of Continuous Non-Invasive Hemoglobin Monitoring on Blood Transfusion and Mortality in Hip Surgeries: A Randomized Controlled Study

DİNÇER YEŞİLNACAR MERVE EZGİ, PİŞKİN ÖZCAN, KÖKSAL İNCEGÜL BENGÜ GÜLHAN, BAYTAR ÇAĞDAŞ, OKYAY RAHŞAN DİLEK (4 more authors)
Journal of Clinical Practice and Research Volume 48 issue 2 | 2026

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The effect of tourniquet application on optic nerve sheath diameter and cerebral oxygenation during lower extremity surgery: A prospective observational study

Aktas, B , Okyay, RD , Piskin, Ö , Incegül, BGK , Kücükosman, G (4 more authors)
MEDICINE Volume 105 | 2026

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The effect of tourniquet application on optic nerve sheath diameter and cerebral oxygenation during lower extremity surgery: A prospective observational study

AKTAŞ BAHAR, OKYAY RAHŞAN DİLEK , PİŞKİN ÖZCAN, KÖKSAL İNCEGÜL BENGÜ GÜLHAN, KÜÇÜKOSMAN GAMZE (4 more authors)
Medicine Volume 105 issue 8 | 2026

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Automatic Gas Control Mode Versus Manual Minimal-flow and Medium-flow Anaesthesia in Breast Surgery: A Comparative Study

ÇEVİKER GÖKHAN, PİŞKİN ÖZCAN, BAYTAR ÇAĞDAŞ, OKYAY RAHŞAN DİLEK , BOLLUCUOĞLU KEZİBAN (4 more authors)
Turkish Journal of Anaesthesiology and Reanimation Volume 53 issue 6 | 2025

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Intraoperative analgesia management by monitoring the analgesia nociception index in gynecological surgeries involving erector spinae plane block: a randomized controlled study

KOÇ Zeynep, BAYTAR ÇAĞDAŞ, OKYAY RAHŞAN DİLEK , BOLLUCUOĞLU KEZİBAN, KÖKSAL İNCEGÜL BENGÜ GÜLHAN (2 more authors)
Journal of Clinical Monitoring and Computing Volume 39 issue 6 | 2025

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The effect of adding lateral femoral cutaneous nerve block to pericapsular nerve group (PENG) block in hip surgery on postoperative morphine consumption: A randomized controlled trial

ŞEKER DİNÇER FIRAT, BOLLUCUOĞLU KEZİBAN, BAYTAR ÇAĞDAŞ, OKYAY RAHŞAN DİLEK , KÖKSAL İNCEGÜL BENGÜ GÜLHAN (3 more authors)
Medicine Volume 104 issue 38 | 2025

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Evaluation of the relationship between the STOP-Bang score with oxygen reserve index and dif ficult airway: a prospective observational study

Alp, ID , Koksal, B , Bollucuoglu, K , Kücükosman, G , Piskin, Ö (3 more authors)
BRAZILIAN JOURNAL OF ANESTHESIOLOGY Volume 74 | 2024

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Effect of Spinal Needles used by Anesthesia Residents on Procedural Success and the Perception of Click Sensation: A Randomized Prospective Trial

Kucukosman, G , Koksal, B , Ozturk, T , Bollucuoglu, K , Koksal, B (3 more authors)
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 62 | 2024

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Anesthesia Management in Tracheobronchial Anomaly Case Detected During Tracheotomy: A Case Report

Kucukosman, G , Gurbuz, Z , Altuncu, S , Okyay, RD , Erdem, D
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 62 | 2024

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Effects of Supraglottic Airway Devices on Hemodynamic Response and Optic Nerve Sheath Diameter: Proseal LMA, LMA Supreme, and I-gel LMA

Okyay, RD , Kücükosman, G , Koksal, B , Piskin, Ö , Ayoglu, H
MEDICINA-LITHUANIA Volume 59 | 2023

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Comparison of the effects of TIVA and inhalation anesthetic techniques on olfactory functions and olfactory memory: a randomized prospective study

Sezer, Ü , Okyay, RD , Ayoglu, H , Koksal, B , Kücükosman, G (5 more authors)
CUKUROVA MEDICAL JOURNAL Volume 48 | 2023

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Investigation of preoxygenation methods in cesarean surgeries with the oxygen reserve index

Kocakulak, D , Kücükosman, G , Koksal, B , Koksal, B , Okyay, RD (4 more authors)
SAUDI MEDICAL JOURNAL Volume 43 | 2022

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Effect of head position during thyroidectomy on cerebral oxygenation and cognition: Prospective observational study

Gülçek, N , Koksal, B , Küçükosman, G , Piskin, Ö , Okyay, RD (2 more authors)
ANNALS OF CLINICAL AND ANALYTICAL MEDICINE Volume 13 | 2022

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Effects of different fresh gas flows on carboxyhemoglobin levels: non-invasive carbon monoxide monitoring A randomized clinical trial

Koksal, B , Kücükosman, G , Özcan, P , Koksal, B , Bollucuoglu, K (2 more authors)
SAUDI MEDICAL JOURNAL Volume 43 | 2022

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Evaluation of Oxygenation in Low- and High-Flow Anesthesia Applications by Oxygen Reserve Index: A Randomized Prospective Study

Oztoprak, H , Kücükosman, G , Koksal, B , Okyay, RD , Piskin, Ö (1 more authors)
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 60 | 2022

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Effect of infraclavicular and interscalene block on oxygenation of the forearm: a randomized controlled study

Açikgöz, E , Piskin, Ö , Koksal, B , Okyay, RD , Küçükosman, G (1 more authors)
CUKUROVA MEDICAL JOURNAL Volume 47 | 2022

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Effects of continuous erector spinae plane block on postoperative pain in video-assisted thoracoscopic surgery: a randomized controlled study

Piskin, Ö , Gökçe, M , Altinsoy, B , Koksal, B , Koksal, B (4 more authors)
GENERAL THORACIC AND CARDIOVASCULAR SURGERY Volume 70 | 2022

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Effects of different fresh gas flows on carboxyhemoglobin levels: non-invasive carbon monoxide monitoring

KÖKSAL BENGÜ GÜLHAN, KÜÇÜKOSMAN GAMZE, PİŞKİN ÖZCAN, BAYTAR ÇAĞDAŞ, BOLLUCUOĞLU KEZİBAN (2 more authors)
Saudi Medical Journal Volume 43 issue 8 | 2022

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Changes in cerebral oxygenation and cognitive functions during controlled hypotension

Koksal, B , Kücükosman, G , Piskin, Ö , Gülçek, N , Okyay, RD (1 more authors)
CUKUROVA MEDICAL JOURNAL Volume 46 | 2021

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The effect of laryngoscope types on hemodynamic response and optic nerve sheath diameter McCoy, Macintosh, and C-MAC video-laryngoscope

Kücükosman, G , Koksal, B , Gülçek, N , Okyay, RD , Piskin, Ö (1 more authors)
SAUDI MEDICAL JOURNAL Volume 41 | 2020

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Peri-operative blood transfusion in elective major surgery: incidence, indications and outcome - an observational multicentre study

ÜNAL DİLEK, ŞENAYLI YEŞİM, POLAT REYHAN, SPAHN DONAT R, TORAMAN FEVZİ (115 more authors)
Blood Transfus Volume 18 issue 4 | 2020

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Peri-operative blood transfusion in elective major surgery: incidence, indications and outcome – an observational multicentre study

ÜNAL DİLEK, ŞENAYLI YEŞİM, POLAT REYHAN, DONAT SPAHN, TORAMAN FEVZİ (147 more authors)
Blood Transfusion Volume 18 issue 4 | 2020

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Perfusion Index and ultrasonography in the evaluation of infraclavicular block

Bereket, MM , Koksal, B , Küçükosman, G , Piskin, Ö , Okyay, RD (2 more authors)
MINERVA ANESTESIOLOGICA Volume 85 | 2019

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Effects of Preoperative Anxiety and General Anesthetic Administration on Intraoperative Awareness in Patients Undergoing Cesarean Section

Gençoglu, NN , Kücükosman, G , Aydin, BG , Okyay, RD , Piskin, Ö (3 more authors)
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 57 | 2019

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Difficult Mask Ventilation in Obese Patients: New Predictive Tests?

Aydin, BG , Küçükosman, G , Piskin, Ö , Okyay, RD , Ayoglu, H
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 57 | 2019

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The role of neutrophil-lymphocyte ratio as a predictor of acute hepatic failure in mushroom poisoning

Aydin, BG , Küçükosman, G , Piskin, Ö , Acikgoz, B , Okyay, RD (1 more authors)
CUKUROVA MEDICAL JOURNAL Volume 44 | 2019

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Pseudocholinesterase levels in patients under electroconvulsive therapy

Küçükosman, G , Piskin, Ö , Hanci, V , Okyay, RD , Ayoglu, H (3 more authors)
SAUDI MEDICAL JOURNAL Volume 39 | 2018

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Anesthesia methods used by anesthetic specialists for circumcision cases National survey study for Turkey

Altas, C , Küçükosman, G , Yurtlu, S , Okyay, RD , Aydin, BG (5 more authors)
SAUDI MEDICAL JOURNAL Volume 38 | 2017

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The effect of sugammadex on postoperative cognitive function and recovery

Piskin, Ö , Küçükosman, G , Altun, DU , Çimencan, M , Ozen, B (4 more authors)
REVISTA BRASILEIRA DE ANESTESIOLOGIA Volume 66 | 2016

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Effects of peroperative intravenous paracetamol and lornoxicam for lumbar disc surgery on postoperative pain and opioid consumption: A randomized, prospective, placebo-controlled study

Bilir, S , Yurtlu, S , Hanci, V , Okyay, RD , Erdogan, G (2 more authors)
AGRI-THE JOURNAL OF THE TURKISH SOCIETY OF ALGOLOGY Volume 28 | 2016

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Impact of the practising anesthesiologist team member on the laryngeal mask cuff pressures and adverse event rate. Impacto do anestesiologista em treinamento sobre as pressões do manguito de máscara laríngea e incidência de eventos adversos

YURTLU BÜLENT SERHAN, HANCI VOLKAN, KÖKSAL BENGÜ GÜLHAN, OKYAY RAHŞAN DİLEK , AYOĞLU HİLAL (1 more authors)
Revista Brasileira de Anestesiologia Volume 65 issue 6 | 2015

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Effects of various anesthesia maintenance on serum levels of selenium, copper, zinc, iron and antioxidant capacity Efeitos da manutenção de várias anestesias sobre os níveis séricos de selênio, cobre, zinco e ferro e a capacidade antioxidante

AKIN MEHMET, AYOĞLU HİLAL, OKYAY RAHŞAN DİLEK , AYOĞLU FERRUH NİYAZİ, GÜR ABDULLAH (5 more authors)
Revista Brasileira de Anestesiologia Volume 65 issue 1 | 2015

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The comparison of levobupivacaine in continuous or single dose spinal anesthesia for transurethral resection of prostate surgery

Baydilek, Y , Yurtlu, S , Hanci, V , Ayoglu, H , Okyay, RD (4 more authors)
REVISTA BRASILEIRA DE ANESTESIOLOGIA Volume 64 | 2014

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Effects of esmolol, lidocaine and fentanyl on P wave dispersion, QT, QTc intervals and hemodynamic responses to endotracheal intubation during propofol induction: a comparative study

Hanci, V , Yurtlu, S , Karabag, T , Okyay, RD , Hakimoglu, S (4 more authors)
REVISTA BRASILEIRA DE ANESTESIOLOGIA Volume 63 | 2013

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Dexmedetomidine did not reduce the effects of tourniquet-induced ischemia-reperfusion injury during general anesthesia

Bostankolu, E , Ayoglu, H , Yurtlu, S , Okyay, RD , Erdogan, G (4 more authors)
KAOHSIUNG JOURNAL OF MEDICAL SCIENCES Volume 29 | 2013

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Effects of esmolol, lidocaine and fentanyl on P wave dispersion, QT, QTc intervals and hemodynamic responses to endotracheal intubation during propofol induction: a comparative study Efeitos de esmolol, lidocaína e fentanil nos intervalos dispersão da onda P, QT, QTc e respostas hemodinâmicas à intubação endotraqueal durante indução com propofol: um estudo comparativo

HANCI VOLKAN, YURTLU BÜLENT SERHAN, KARABAĞ TURGUT, OKYAY RAHŞAN DİLEK , HAKİMOĞLU SEDAT (4 more authors)
Revista Brasileira de Anestesiologia Volume 63 issue 3 | 2013

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Postoperative Analgesic Effects of Wound Infiltration With Tramadol and Levobupivacaine in Lumbar Disk Surgeries

Ozyilmaz, K , Ayoglu, H , Okyay, RD , Yurtlu, S , Koksal, B (3 more authors)
JOURNAL OF NEUROSURGICAL ANESTHESIOLOGY Volume 24 | 2012

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Effects on hypotension incidence: hyperbaric, isobaric, and combinations of bupivacaine for spinal anesthesia in cesarean section

Yurtlu, S , Hanci, V , Okyay, RD , Bostankolu, SE , Erdogan, G (5 more authors)
TURKISH JOURNAL OF MEDICAL SCIENCES Volume 42 | 2012

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The Effects of a Subhypnotic Dose of Ketamine on Neuromuscular Block Characteristics of Rocuronium and Intubation Quality

Abdusoglu, M , Özkoçak, I , Yurtlu, S , Hanci, V , Okyay, RD (1 more authors)
TURKIYE KLINIKLERI TIP BILIMLERI DERGISI Volume 32 | 2012

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The Effect of Erythropoietin on Anastomotic Healing of Irradiated Rats

Turkcu, UO , Çakmak, GK , Demir, EO , Bakkal, BH , Oner, MO (3 more authors)
JOURNAL OF INVESTIGATIVE SURGERY Volume 25 | 2012

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Preoperative Abnormal P and QTc Dispersion Intervals in Patients with Metabolic Syndrome

Hanci, V , Yurtlu, S , Aydin, M , Bilir, S , Erdogan, G (3 more authors)
ANESTHESIA AND ANALGESIA Volume 112 | 2011

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A subhypnotic dose of ketamine reduces pain associated with injection of propofol and rocuronium

Abdusoglu, M , Özkoçak, I , Yurtlu, S , Hanci, V , Okyay, RD (1 more authors)
EUROPEAN JOURNAL OF ANAESTHESIOLOGY Volume 28 | 2011

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Nitrous Oxide and Nitrous Oxide-Free Low-Flow Anesthesia Using Bispectral Index Monitoring: Effects on Hemodynamics, Recovery Times, Volatile Anesthetic Consumption and Costs

Koksal, B , Hanci, V , Erdogan, G , Yurtlu, S , Okyay, RD (2 more authors)
HASEKI TIP BULTENI-MEDICAL BULLETIN OF HASEKI Volume 48 | 2010

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ANESTHESIA INDUCTION WITH SEVOFLURANE AND PROPOFOL: EVALUATION OF P-WAVE DISPERSION, QT AND CORRECTED QT INTERVALS

Hanci, V , Aydin, M , Yurtlu, S , Ayoglu, H , Okyay, RD (4 more authors)
KAOHSIUNG JOURNAL OF MEDICAL SCIENCES Volume 26 | 2010

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The Effects of the Menstrual Cycle on the Hemodynamic Response to Laryngoscopy and Tracheal Intubation

Hanci, V , Yurtlu, S , Hakimoglu, S , Yilmaz, M , Ayoglu, H (4 more authors)
ANESTHESIA AND ANALGESIA Volume 111 | 2010

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EFFECT OF LOW-FLOW ANESTHESIA EDUCATION ON KNOWLEDGE, ATTITUDE AND BEHAVIOR OF THE ANESTHESIA TEAM

Hanci, V , Yurtlu, S , Ayoglu, H , Okyay, RD , Erdogan, G (3 more authors)
KAOHSIUNG JOURNAL OF MEDICAL SCIENCES Volume 26 | 2010

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Effect of menstrual cycle on the injection pain due to propofol

Hanci, V , Ayoglu, H , Yilmaz, M , Yurtlu, S , Okyay, RD (3 more authors)
EUROPEAN JOURNAL OF ANAESTHESIOLOGY Volume 27 | 2010

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EFFECTS OF FENTANYL-LIDOCAINE-PROPOFOL AND DEXMEDETOMIDINE-LIDOCAINE-PROPOFOL ON TRACHEAL INTUBATION WITHOUT USE OF MUSCLE RELAXANTS

Hanci, V , Erdogan, G , Okyay, RD , Yurtlu, S , Ayoglu, H (2 more authors)
KAOHSIUNG JOURNAL OF MEDICAL SCIENCES Volume 26 | 2010

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Anesthesia induction with sevoflurane and propofol: Evaluation of P‐wave dispersion, QT and corrected QT Intervals

HANCI VOLKAN, AYDIN MUSTAFA, YURTLU BÜLENT SERHAN, AYOĞLU HİLAL, OKYAY RAHŞAN DİLEK (4 more authors)
Kaohsiung Journal of Medical Sciences Volume 26 issue 9 | 2010

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Effect of low‐flow anesthesia education on knowledge, attitude and behavior of the anesthesia team

HANCI VOLKAN, YURTLU BÜLENT SERHAN, AYOĞLU HİLAL, OKYAY RAHŞAN DİLEK , ERDOĞAN KAYHAN GÜLAY (3 more authors)
Kaohsiung Journal of Medical Sciences Volume 26 issue 8 | 2010

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Effects of fentanyl‐lidocaine‐propofol and dexmedetomidine‐lidocaine‐propofol on tracheal intubation without use of muscle relaxants

HANCI VOLKAN, ERDOĞAN KAYHAN GÜLAY, OKYAY RAHŞAN DİLEK , YURTLU BÜLENT SERHAN, AYOĞLU HİLAL (2 more authors)
Kaohsiung Journal of Medical Sciences Volume 26 issue 5 | 2010

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Effects of Dexmedetomidine Pretreatment on Bupivacaine Cardiotoxicity in Rats

Hanci, V , Karakaya, K , Yurtlu, S , Hakimoglu, S , Can, M (4 more authors)
REGIONAL ANESTHESIA AND PAIN MEDICINE Volume 34 | 2009