Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study
Objective: In hypertensive patients, the autoregulation curve shifts rightward, making these patients more sensitive than normotensive individuals to hypotension. Hypotension following the induction of anesthesia has been studied in normotensive patients to determine its effects on brain tissue oxyg...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | Brazilian Journal of Anesthesiology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0104001421000233 |
| _version_ | 1811199616539951104 |
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| author | Yasin Taşkaldıran Özlem Şen Tuğba Aşkın Süheyla Ünver |
| author_facet | Yasin Taşkaldıran Özlem Şen Tuğba Aşkın Süheyla Ünver |
| author_sort | Yasin Taşkaldıran |
| collection | DOAJ |
| description | Objective: In hypertensive patients, the autoregulation curve shifts rightward, making these patients more sensitive than normotensive individuals to hypotension. Hypotension following the induction of anesthesia has been studied in normotensive patients to determine its effects on brain tissue oxygenation, but not enough studies have examined the effect of hypotension on brain oxygenation in hypertensive patients. The current study aimed to use near-infrared spectroscopy to evaluate brain tissue oxygen saturation after the induction of anesthesia in hypertensive patients, who may have impaired brain tissue oxygen saturation. Methods: The study included a total of 200 patients aged > 18 years old with ASA I–III. Measurements were taken while the patient was breathing room air, after the induction of anesthesia, when the lash reflex had disappeared following the induction of anesthesia, after intubation, and in the 5th, 10th, and 15th minutes of surgery. The patients were divided into nonhypertensive and hypertensive groups. Results: There was a significant difference in age between the groups (p = 0.000). No correlation was found between cerebral tissue oxygen saturation and age (r = 0.015, p = 0.596). Anesthesia induction was observed to decrease mean arterial blood pressure in both groups (p = 0.000). Given these changes, there was no significant difference in brain tissue oxygen saturation between the nonhypertensive and hypertensive groups (p > 0.05). Conclusion: There was no difference between hypertensive and normotensive groups in terms of the change rates in cSO2 values. However, there was a difference between the groups in terms of cSO2 values. |
| first_indexed | 2024-04-12T01:50:26Z |
| format | Article |
| id | doaj.art-67fc191dc8bc4422a876bb354f41479c |
| institution | Directory Open Access Journal |
| issn | 0104-0014 |
| language | English |
| last_indexed | 2024-04-12T01:50:26Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Brazilian Journal of Anesthesiology |
| spelling | doaj.art-67fc191dc8bc4422a876bb354f41479c2022-12-22T03:52:57ZengElsevierBrazilian Journal of Anesthesiology0104-00142021-05-01713241246Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational studyYasin Taşkaldıran0Özlem Şen1Tuğba Aşkın2Süheyla Ünver3Corresponding author.; Anesthesiology and Reanimation, Health Sciences University Dr. Abdurrahman Yurtaslan Oncology Health Application and Research Center, Ankara, TurkeyAnesthesiology and Reanimation, Health Sciences University Dr. Abdurrahman Yurtaslan Oncology Health Application and Research Center, Ankara, TurkeyAnesthesiology and Reanimation, Health Sciences University Dr. Abdurrahman Yurtaslan Oncology Health Application and Research Center, Ankara, TurkeyAnesthesiology and Reanimation, Health Sciences University Dr. Abdurrahman Yurtaslan Oncology Health Application and Research Center, Ankara, TurkeyObjective: In hypertensive patients, the autoregulation curve shifts rightward, making these patients more sensitive than normotensive individuals to hypotension. Hypotension following the induction of anesthesia has been studied in normotensive patients to determine its effects on brain tissue oxygenation, but not enough studies have examined the effect of hypotension on brain oxygenation in hypertensive patients. The current study aimed to use near-infrared spectroscopy to evaluate brain tissue oxygen saturation after the induction of anesthesia in hypertensive patients, who may have impaired brain tissue oxygen saturation. Methods: The study included a total of 200 patients aged > 18 years old with ASA I–III. Measurements were taken while the patient was breathing room air, after the induction of anesthesia, when the lash reflex had disappeared following the induction of anesthesia, after intubation, and in the 5th, 10th, and 15th minutes of surgery. The patients were divided into nonhypertensive and hypertensive groups. Results: There was a significant difference in age between the groups (p = 0.000). No correlation was found between cerebral tissue oxygen saturation and age (r = 0.015, p = 0.596). Anesthesia induction was observed to decrease mean arterial blood pressure in both groups (p = 0.000). Given these changes, there was no significant difference in brain tissue oxygen saturation between the nonhypertensive and hypertensive groups (p > 0.05). Conclusion: There was no difference between hypertensive and normotensive groups in terms of the change rates in cSO2 values. However, there was a difference between the groups in terms of cSO2 values.http://www.sciencedirect.com/science/article/pii/S0104001421000233Anesthesia inductionCerebral tissue oxygen saturationHypertension |
| spellingShingle | Yasin Taşkaldıran Özlem Şen Tuğba Aşkın Süheyla Ünver Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study Brazilian Journal of Anesthesiology Anesthesia induction Cerebral tissue oxygen saturation Hypertension |
| title | Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study |
| title_full | Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study |
| title_fullStr | Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study |
| title_full_unstemmed | Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study |
| title_short | Effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients: an observational study |
| title_sort | effect of anesthesia induction on cerebral tissue oxygen saturation in hypertensive patients an observational study |
| topic | Anesthesia induction Cerebral tissue oxygen saturation Hypertension |
| url | http://www.sciencedirect.com/science/article/pii/S0104001421000233 |
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