Bilge Olgun Keleş

Dr. Bilge Olgun Keleş

Anesthesiology and Reanimation, Giresun University, Giresun, Turkey (Türkiye)
orcid
Department of Anesthesiology and Reanimation, Giresun Univer...

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2012 in Magnesium Research
Verified
Journal Article
Closed access
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BKBilge Olgun Keleş
Bilge Olgun Keleş
GOGonca Oğuz
Gonca Oğuz
MKMensure Kaya
Mensure Kaya
SŞSerpil Şavlı
Serpil Şavlı
HEHamit Erdal Eskiçırak
Hamit Erdal Eskiçırak
NKNihal Kadıoğulları
Nihal Kadıoğulları
We evaluated the effects of magnesium sulphate infusion on anesthetic requirement, early recovery and postoperative analgesia in desflurane-remifentanil-based, balanced anaesthesia. 60, ASA (American Society of Anesthesiologists) group 1-2 patients who were scheduled for laparoscopic cholecystectomy were randomly divided into two groups. Before anesthesia, the magnesium-treated group (n = 30) received a 15 min infusion of 40 mg/kg of magnesium sulphate followed by 10 mg/kg/h by continuous i.v. infusion during the operation. The same volume of isotonic saline was administered to the control group (n = 30). Anesthesia was induced with propofol, remifentanil and vecuronium, and maintained with desflurane 3-6%, O(2)/air and remifentanil infusion. Desflurane was titrated to maintain BIS (bispectral index) values of 40-60. The times from cessation of anesthesia to spontaneous breathing, eye opening, extubation, reaching BIS 70, and Aldrete scores were recorded. After surgery, patients received a patient-controlled, morphine analgesia device. demographic variables were similar. During the 15 min infusion of magnesium sulphate, the BIS value was significantly lower in the magnesium sulphate-treated group. The amounts of propofol and desflurane used were less in the magnesium sulphate-treated group, by 18% and 22% respectively (p<0.05). The groups did not differ with respect to the time taken to reach BIS 70, spontaneous breathing, eye opening and extubation. Alderete and VAS (visual analogue scale) pain scores, and total morphine consumption were significantly lower in the magnesium sulphate-treated group. There were no differences in side effects, but the rate of re-intubation was higher in the group receiving magnesium sulphate (p = 0.03). perioperative use of magnesium sulphate reduced propofol and desflurane consumption, and the postoperative morphine requirement, while causing a delay in recovery by decreasing the Aldrete score.

1 February 2024 in Korean Journal of Anesthesiology
Verified
Journal Article
Open access
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BKBilge Olgun Keleş
Bilge Olgun Keleş
NSNecati Salman
Necati Salman
EYElvan TEKİR YILMAZ
Elvan TEKİR YILMAZ
HBHabip Resul Birinci
Habip Resul Birinci
AAAlparslan Apan
Alparslan Apan
AUAysun Uz
Aysun Uz
Background: Erector spinae plane block (ESPB) is a well-established method for managing postoperative and chronic pain. ESPB applications for the sacral area procedures are called sacral ESPBs (SESPBs). This cadaveric study aimed to determine the distribution of local anesthesia using the median and intermediate approaches to the SESPB.Methods: Four cadavers were categorized into the median and intermediate approach groups. Ultrasound-guided SESPBs were performed using a mixture of radiopaque agents and dye. Following confirmation of the solution distribution through computed tomography (CT), the cadavers were dissected to observe the solution distribution.Results: CT images of the median group demonstrated subcutaneous pooling of the radiopaque solution between the S1 and S5 horizontal planes. Radiopaque solution also passed from the sacral foramina to the anterior sacrum via the spinal nerves between S2 and S5. In the intermediate group, the solution distribution was observed along the bilateral erector spinae muscle between the L2 and S3 horizontal planes; no anterior transition was detected. Dissection in the median group revealed blue solution distribution in subcutaneous tissue between horizontal planes S1 and S5, but no distribution in superficial fascia or muscle. In the intermediate group, red solution was detected in the erector spinae muscle between the L2 and S3 intervertebral levels.Conclusions: Radiologic and anatomic findings revealed the presence of radiopaque dye in the superficial and erector spinae compartments in both the median and intermediate groups. However, anterior transition of the radiopaque dye was detected only in the median group.

1 January 2024 in Revista da Associação Médica Brasileira
Verified
Journal Article
Open access
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EYElvan TEKİR YILMAZ
Elvan TEKİR YILMAZ
DGDuygu Demiriz Gülmez
Duygu Demiriz Gülmez
AAAlparslan Apan
Alparslan Apan
BKBilge Olgun Keleş
Bilge Olgun Keleş
MCMücahit Coşkun
Mücahit Coşkun
ISIlker Sengul
Ilker Sengul
OBJECTIVE: Erector spinae plane block is an updated method than paravertebral block, possessing a lower risk of complications. This study aimed to compare erector spinae plane and paravertebral blocks to safely reach the most efficacious analgesia procedure in laparoscopic cholecystectomy cases.

1 May 2024 in Minerva Anestesiologica
Verified
Journal Article
Closed access
BKBilge Olgun Keleş
Bilge Olgun Keleş
EYElvan Teki̇r Yilmaz
Elvan Teki̇r Yilmaz
Article: The effect of an ultrasound-guided sacral erector spinae plane block on the postoperative pain of lumbar discectomy: a randomized controlled trial - Minerva Anestesiologica 2024 Mar 14 - Minerva Medica - Journals

Verified
Journal Article
Open access
PDF file
BKBilge Olgun Keleş
Bilge Olgun Keleş
EYElvan TEKİR YILMAZ
Elvan TEKİR YILMAZ
AAAli Altınbaş
Ali Altınbaş
Objective: Catheter-related bladder discomfort (CRBD) due to indwelling urinary catheterization in patients undergoing transurethral resection of the prostate (TURP) is difficult to tolerate and needs to be treated. This randomized prospective study aimed to compare the efficacy of sacral erector spinae plane block (SESPB) and pudendal nerve block (PNB) in reducing the incidence and score of CRBD. Methods: This study was conducted between November and December 2023. ASA I-III, fifty-four TURP patients were divided into two groups: Group 1 received SESPB (n = 27) and Group 2 received PNB (n = 27) under ultrasound guidance at the end of surgery. The incidence of CRBD, CRBD score, numerical rating scale (NRS) score, use of rescue analgesics, block performance time, first call for analgesics, patient satisfaction, and side effects were recorded for 24 h. Results: The incidence of CRBD was lowest at 33.3% and highest at 48.1% in Group 1 and lowest at 25.9% and highest at 48.1% in Group 2, with no significant difference between the groups at all measurement times. CRBD scores and NRS scores were low and similar between the two groups. Block performance times were 9 ± 1.7 min in SESPB and 20 ± 2.5 min in PNB, and there was a significant difference between the mean times (p < 0.001). Patient satisfaction was adequate and similar in both groups. Conclusions: SESPB demonstrated a similar decreasing effect to PNB on the incidence and scores of CRBD in the first 24 h following TURP operations. The duration of SESPB administration was shorter than PNB.

12 January 2024 in Annals of Cardiac Anaesthesia
Verified
Journal Article
Open access
BKBilge Olgun Keleş
Bilge Olgun Keleş
EYElvan Tekir Yılmaz
Elvan Tekir Yılmaz
AAAli Altınbaş
Ali Altınbaş
SZSabür Zengin
Sabür Zengin
SYSeyhan Yılmaz
Seyhan Yılmaz
Introduction: The aim of this study was to evaluate the prediction of vasoactive inotropic score (VIS) on early mortality and morbidity after coronary artery bypass grafting (CABG) and to determine the ideal time for score calculation. Materials and Methods: The study included patients who underwent isolated on-pump CABG surgery between November 2021 and November 2022. Pre, intra, and postoperative data were obtained by retrospective chart review. The final VIS value in the operating room (VISintra) and the highest VIS value in the first 24 hours in the intensive care unit (VISmax) were calculated. The patients were divided into two groups; Group 1 who developed early postoperative morbidity and mortality and Group 2 who did not. And the data were analyzed by groups. Results: A total of 221 patients with a mean age of 63.49 ± 9.96 years were evaluated and 73 (33%) were in Group 1. The cut-off value for VISintra was determined to be 6.20, VISmax was 6,05. VISintra and VISmax values were significantly higher in the poor outcome group. Multivariate analysis showed that only VISmax value was an independent variable on mortality-morbidity. Conclusions: Our results imply that the vasoactive inotropic score is an easy and inexpensive score to calculate and can be used as a specific scoring system to predict poor early outcomes in CABG patients. According to statistical analyses, the most predictive time among VIS measurements was VISmax, the highest value calculated in the ICU in the first 24 hours postoperatively.