@article{MTMT:34309338, title = {Effects of N95 Masks on Cerebral Oxygen Saturation and End-Tidal Carbon Dioxide Partial Pressure in Healthcare Workers}, url = {https://m2.mtmt.hu/api/publication/34309338}, author = {Ghorbani, Jahangir and Doraneh-Gard, Fatemeh and Mirtajani, Seyed Bashir and Shirvani, Mohammad and Golestani Eraghi, Majid and Seied-Mohammad Doulabi, Seied-Reza and Jahangirifard, Alireza}, doi = {10.5812/aapm-135081}, journal-iso = {ANESTH PAIN MED}, journal = {ANESTHESIOLOGY AND PAIN MEDICINE}, volume = {13}, unique-id = {34309338}, issn = {2228-7523}, abstract = {Background: Healthcare workers must wear masks throughout their shifts, especially those in operating rooms for long periods. Objectives: This study evaluated the effects of wearing N95 masks on blood and cerebral oxygen saturation levels for three hours. Methods: The present case-control study enrolled 20 operating room workers wearing N95 masks. Their blood oxygen saturation (SaO2), end-tidal carbon dioxide partial pressure (PETCO2), and right- and left-sided cerebral oxygenation (rSO2) were measured in the beginning (0 h) and after wearing N95 masks for one and three hours. Results: Wearing a mask affected PETCO2, rSO2, and pulse rate and caused fatigue and lightheadedness in some cases. The participants' mean PETCO2 increased significantly, from 32 mmHg before putting on a mask to 38 mmHg after wearing it for three hours (P < 0.05). No significant change was observed in the participants' mean rSO2, though changes in their rSO2 levels were recorded (P > 0.05). Conclusions: We showed evidence of changes in different physiology parameters due to using masks for 1 to 3 h. Notably, wearing an N95 mask increased end-tidal carbon dioxide partial pressure and decreased cerebral oxygen saturation in individual cases, not all cases.}, year = {2023}, eissn = {2228-7531}, pages = {1}, orcid-numbers = {Ghorbani, Jahangir/0000-0001-6209-1081; Mirtajani, Seyed Bashir/0000-0003-4373-1383; Shirvani, Mohammad/0000-0003-2844-1361; Seied-Mohammad Doulabi, Seied-Reza/0000-0003-1372-3710; Jahangirifard, Alireza/0000-0002-2705-4055} } @article{MTMT:34620212, title = {Comparison of the effects of low-flow and normal-flow anesthesia on intracranial pressure, cerebral oxygenation and bispectral index in laparoscopic cholecystectomy operation}, url = {https://m2.mtmt.hu/api/publication/34620212}, author = {Mermer, A. and Kozanhan, B.}, journal-iso = {EUR REV MED PHARMACOL SCI}, journal = {EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES}, volume = {27}, unique-id = {34620212}, issn = {1128-3602}, abstract = {OBJECTIVE: Pneumoperitoneum in laparoscopic surgeries can raise intracranial pressure (ICP). Low-flow anesthesia offers benefits such as improved clearance, temperature preservation, fluid reduction, cost savings, and lower emissions. However, the impact of low-flow anesthesia on ICP during laparoscopic cholecystectomy remains unclear. This study aimed to compare the effects of low-flow anesthesia (0.75 l/min) to those of normal-flow anesthesia (1.5 l/ min) on optic nerve sheath diameter (ONSD) in laparoscopic cholecystectomy patients.PATIENTS AND METHODS: A total of 80 elective laparoscopic cholecystectomy patients were included in the study. Patients were randomly allocated (1:1) into two study groups: a low-flow anesthesia group and a normal-flow group. ONSD, BIS, left and right rSO2, SAP, DAP, MAP, HR, SpO2, EtCO2, peak inspiratory pressure (P-Peak), Mini-Mental State Exam (MMSE), and duration of surgery were recorded.RESULTS: The results showed that low-flow anesthesia (0.75 l/min) during laparoscopic cholecystectomy had a preventive effect on the increase in ONSD at 30 minutes (T4) into the operation (p = 0.014). BIS values of left and right rSO2 during the preoperative and intraoperative periods were similar.CONCLUSIONS: In conclusion, low-flow anesthesia during laparoscopic cholecystectomy may benefit ICP by preventing an increase in ONSD.}, keywords = {Intracranial Pressure; Laparoscopic cholecystectomy; optic nerve sheath diameter; low-flow anesthesia; Normal-flow anesthesia}, year = {2023}, eissn = {2284-0729}, pages = {8514-8522} } @article{MTMT:33705118, title = {Bilateral cerebral oxygen saturation monitoring in carotid body tumour excision under general anaesthesia: a case report}, url = {https://m2.mtmt.hu/api/publication/33705118}, author = {Singh, Jagriti and Karandikar, Gayatri and Zirpe, Kaustubh and Govardhane, Balasaheb}, doi = {10.18203/2320-6012.ijrms20230681}, journal-iso = {IJRMS}, journal = {INTERNATIONAL JOURNAL OF RESEARCH IN MEDICAL SCIENCES}, volume = {1}, unique-id = {33705118}, issn = {2320-6071}, abstract = {Carotid Body tumour is an uncommon non-chromaffin paraganglioma arising from chemoreceptor cells at the external and internal carotid artery bifurcation. The reported incidence is 1-2 cases per 1,00,000 population. Surgical excision is extremely difficult and possess challenges to both surgeon and the anaesthetist. We report here a case of CBT excision with the use of cerebral oximetry to reduce the chances of intra-operative cerebral ischemia.}, year = {2023}, eissn = {2320-6012}, pages = {1} } @article{MTMT:32872043, title = {Intraoperative hyperoxygenation may negatively affect postoperative cognitive functions in coronary artery bypass graft operations: A randomized controlled study}, url = {https://m2.mtmt.hu/api/publication/32872043}, author = {Onur, Tuğba and Karaca, Ümran and Ata, Filiz and Sayan, Halil E. and Onur, Anıl and Yilmaz, Canan and Balkaya, Ayşe N. and Eriş, Cüneyt}, doi = {10.1111/jocs.16661}, journal-iso = {J CARD SURG}, journal = {JOURNAL OF CARDIAC SURGERY}, volume = {1}, unique-id = {32872043}, issn = {0886-0440}, year = {2022}, eissn = {1540-8191}, pages = {1}, orcid-numbers = {Onur, Tuğba/0000-0002-5080-4555; Karaca, Ümran/0000-0001-5922-2300; Ata, Filiz/0000-0003-2472-1681; Sayan, Halil E./0000-0003-3943-5549; Onur, Anıl/0000-0002-3957-922X; Yilmaz, Canan/0000-0002-6626-3626; Balkaya, Ayşe N./0000-0001-8031-6264} } @article{MTMT:33097148, title = {Correlation and agreement of regional cerebral oxygen saturation measured from sensor sites at frontal and temporal areas in adult patients undergoing cardiovascular anesthesia}, url = {https://m2.mtmt.hu/api/publication/33097148}, author = {Tribuddharat, Sirirat and Ngamsaengsirisup, Kriangsak and Mahothorn, Phatcharakamon and Sathitkarnmanee, Thepakorn}, doi = {10.7717/peerj.14058}, journal-iso = {PEERJ}, journal = {PEERJ}, volume = {10}, unique-id = {33097148}, issn = {2167-8359}, year = {2022}, eissn = {2167-8359}, orcid-numbers = {Sathitkarnmanee, Thepakorn/0000-0002-8401-1510} } @article{MTMT:32441512, title = {Theta burst stimulation over the prefrontal cortex: Effects on cerebral oximetry and cardiovascular measures in healthy humans}, url = {https://m2.mtmt.hu/api/publication/32441512}, author = {Pinto, Nuno and Goncalves, Helena and Silva, Ricardo and Duarte, Marta and Gama, Jorge and Pato, Maria Vaz}, doi = {10.1016/j.neulet.2021.135792}, journal-iso = {NEUROSCI LETT}, journal = {NEUROSCIENCE LETTERS}, volume = {752}, unique-id = {32441512}, issn = {0304-3940}, abstract = {Theta Burst Stimulation (TBS) is a non-invasive neurophysiological technique, able to induce changes in synaptic activity. Research suggests that TBS may induce changes in cerebral oxygenation, cerebral blood flow, blood pressure and heart rate but there are conflicting results across studies. Thus, the objective of our sham-controlled study is to evaluate if TBS applied to the dorsolateral prefrontal cortex (DLPFC) of healthy volunteers produces changes in cerebral oximetry, heart rate and blood pressure. Forty-nine volunteers of both sexes were randomly allocated to one of five stimulation groups. Before and after real TBS or sham stimulation, blood pressure, heart rate, and cerebral oxygenation of the volunteers were measured. Cerebral oxygenation values were obtained with a near infra-red spectroscopy system. We found a significant reduction in left cortex oximetry after continuous TBS (cTBS) over the left DLPFC (p = 0.039) and a non-significant reduction in right cortex oximetry (p = 0.052). Right hemisphere inhibition (using cTBS) seemed to originate a significant reduction of 8 mmHg in systolic arterial pressure. No other changes were seen in oximetry, cardiac frequency and diastolic arterial pressure. In our group of normal subjects, cTBS applied to the left DLPFC was able to reduce oxygenation in the left cortex. Right hemisphere inhibition was associated with a significant reduction in systolic pressure.}, keywords = {Blood Pressure; near infrared spectroscopy; transcranial magnetic stimulation; oximetry; theta burst stimulation}, year = {2021}, eissn = {1872-7972}, orcid-numbers = {Goncalves, Helena/0000-0002-9750-8665} } @article{MTMT:31394908, title = {THE IMPORTANCE OF NON-INVASIVE REGIONAL BRAIN OXIMETRY IN PREVENTING POSTOPERATIVE COGNITIVE DYSFUNCTION DURING LAPAROSCOPIC CHOLECYSTECTOMY IN ELDERLY AND SENILE PATIENTS}, url = {https://m2.mtmt.hu/api/publication/31394908}, author = {Bielykh, Olena}, doi = {10.21303/2504-5679.2020.001351}, journal = {EUREKA: Health Sciences}, volume = {4}, unique-id = {31394908}, issn = {2504-5679}, year = {2020}, pages = {11-17}, orcid-numbers = {Bielykh, Olena/0000-0001-9479-6262} } @article{MTMT:31259109, title = {Regional Cerebral Oxygen Saturation Monitoring during Spinal Surgery in Order to Identify Patients at Risk for Cerebral Desaturation}, url = {https://m2.mtmt.hu/api/publication/31259109}, author = {Murniece, Sniedze and Soehle, Martin and Vanags, Indulis and Mamaja, Biruta}, doi = {10.3390/app10062069}, journal-iso = {APPL SCI-BASEL}, journal = {APPLIED SCIENCES-BASEL}, volume = {10}, unique-id = {31259109}, year = {2020}, eissn = {2076-3417} } @article{MTMT:30466827, title = {Comparison of effects of low-flow and normal-flow anesthesia on cerebral oxygenation and bispectral index in morbidly obese patients undergoing laparoscopic sleeve gastrectomy: a prospective, randomized clinical trial}, url = {https://m2.mtmt.hu/api/publication/30466827}, author = {Akbas, Sedat and Ozkan, Ahmet Selim}, doi = {10.5114/wiitm.2018.77265}, journal-iso = {WIDEOCHIRURGIA TEC M}, journal = {VIDEOSURGERY AND OTHER MINIINVASIVE TECHNIQUES / WIDEOCHIRURGIA I INNE TECHNIKI MALO INWAZYJNE}, volume = {14}, unique-id = {30466827}, issn = {1895-4588}, abstract = {Introduction: The effects of low-flow anesthesia on cerebral oxygenation in high-risk, morbidly obese patients are not well known.}, keywords = {morbid obesity; BISPECTRAL INDEX; Anesthesia management; bariatric/metabolic surgery; low flow anesthesia; regional cerebral oximetry}, year = {2019}, eissn = {2299-0054}, pages = {19-26} } @article{MTMT:27562106, title = {CEREBRAL OXIMETRY AND APPLICATIONS UNDER ANESTHESIA}, url = {https://m2.mtmt.hu/api/publication/27562106}, author = {Celik, Erkan Cem and Ciftci, Bahadir}, journal-iso = {J ISTANB FAC MED}, journal = {JOURNAL OF ISTANBUL FACULTY OF MEDICINE-ISTANBUL TIP FAKULTESI DERGISI}, volume = {81}, unique-id = {27562106}, issn = {1305-6433}, year = {2018}, eissn = {1305-6441}, pages = {33-36} }