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After reaching 1 MAC level with 4 lt / min fresh gas flow and 2.5% sevoflurane concentration in the initial stage in 35 patients, anesthesia maintenance will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 MAC. For 35 patients, after reaching 1 (MAC) level with 1 lt / min fresh gas flow and 8% sevoflurane concentration in the initial phase, maintenance of anesthesia will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration, targeting 1 MAC.
The primary aim of this study is to compare the instantaneous and total consumption of sevoflurane using 2 different concentrations and different minute / fresh gas flow to fill the system in the initial phase of anesthesia. Its secondary purpose is to compare the depth of anesthesia and hemodynamic parameters between the two groups.
A total of 70 patients between the ages of 18-65 will be included in the study.in 2.5 % sevoflurane grup After reaching 1 MAC level with 4 lt / min fresh gas flow and 2.5% sevoflurane concentration in the initial stage in 35 patients, anesthesia maintenance will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 MAC. in sevoflurane 8 % group for 35 patients, after reaching 1 (MAC) level with 1 lt / min fresh gas flow and 8% sevoflurane concentration in the initial phase, maintenance of anesthesia will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 MAC. . The depth of anesthesia for both groups will be measured by the Bispectral Index (BIS). BIS values between 40 and 60 are appropriate values for general anesthesia, for this value 1 MAC sevoflurane inhalation anesthesia and remifentanil infusion (0.1-0.3mcg / kg / min) will be used.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| sevoflurane 8 % | In the initial phase, after reaching 1 (MAK) level with 1lt / min fresh gas flow and 8% sevoflurane concentration, anesthesia maintenance will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 MAC. |
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| sevoflurane 2.5 % | In the initial phase, after reaching 1 MAK level with 4 lt / min fresh gas flow and 2.5% sevoflurane concentration, anesthesia maintenance will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 MAC. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| 2.5 %sevoflurane | Other | for 35 patients after reaching 1 MAK level with 4 lt / min fresh gas flow and 2,5% sevoflurane concentration in the initial phase, maintenance of anesthesia will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration with the target of 1 minimum alveolar concentration |
| Measure | Description | Time Frame |
|---|---|---|
| sevoflurane versus desflurane | To compare the instant and total consumption of sevoflurane using 2 different concentrations and different minute / fresh gas flow to fill the system in the initial phase of anesthesia. | the study will comlete in one month |
| Measure | Description | Time Frame |
|---|---|---|
| sevoflurane | Its secondary purpose is to compare the depth of anesthesia and hemodynamic parameters between the two groups. | studdy will complete in one month |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Tahsin Şimşek | Istanbul | Kartal | 34000 | Turkey (Türkiye) |
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| ID | Term |
|---|---|
| D053120 | Respiratory Aspiration |
| ID | Term |
|---|---|
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| 8% sevoflurane low flow anesthesia | Other | For 35 patients after reaching 1 (MAC) level with 1 lt / min fresh gas flow and 8% sevoflurane concentration in the initial phase, maintenance of anesthesia will be continued with 0.5 lt / min fresh gas flow and 2 -4% sevoflurane concentration, targeting 1 MAC. . |
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