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Aim of this trial is to define if Concentration at the effector site (Ce) of Ketamine, during a continuous infusion and calculated with DOMINO model infusion pump are correlated with Bispectral Index BIS values during general anaesthesia for breast surgery.
Correlation between Concentration at the effector site (Ce) of Ketamine and Bispectral Index (BIS) values during general anaesthesia for breast surgery has not been defined yet during a continuous infusion.
Authors want to analyze this correlation during general anaesthesia conducted using Propofol, ketamine and remifentanil. All of these drugs will be delivered with Target-Controlled Infusion pumps (in particular Eleveld for Propofol, Minto for Remifentanil and Domino for Ketamine).
Ketamine will be observationally set at anaesthesiologist's discretion, but only CeK 0.1, 0.2, 0.4 and 0.6 for at least 30 minutes will be considered for analysis.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| CeK 0.1 | Data about Continuous infusion with Concentration at the effector site of Ketamine (CeK) set (at anesthesiologist's discretion) at 0.1 ug/ml for at least 30 minute and BIS during a propofol-remifentanil general anesthesia will be correlated. |
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| CeK 0.2 | Data about Continuous infusion with Concentration at the effector site of Ketamine (CeK) set (at anesthesiologist's discretion) at 0.2 ug/ml for at least 30 minute and BIS during a propofol-remifentanil general anesthesia will be correlated. |
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| CeK 0.4 | Data about Continuous infusion with Concentration at the effector site of Ketamine (CeK) set (at anesthesiologist's discretion) at 0.4 ug/ml for at least 30 minute and BIS during a propofol-remifentanil general anesthesia will be correlated. |
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| CeK 0.6 | Data about Continuous infusion with Concentration at the effector site of Ketamine (CeK) set (at anesthesiologist's discretion) at 0.1 ug/ml for at least 30 minute and BIS during a propofol-remifentanil general anesthesia will be correlated. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ketamine | Drug | CeK will be set at anesthesiologist's discretion. Only patients with continuous infusion of CeK 0.1, 0.2, 0.4 or 0.6 for at least 30 minutes will be considered. |
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| Measure | Description | Time Frame |
|---|---|---|
| Correlation between Concentration at the effector site of Ketamine and BIS values | Discover if there is linear correlation between Concentration at the effector site of Ketamine and BIS values during standard general anaesthesia conducted with Propofol, remifenatnil and ketamine delivered with targeted controlled infusion pumps, usually adopted in our Hospital to delivery general anaesthesia | Data about Drugs concentration and BIS during general anaesthesia will be collected, in particular BIS and TCI Ketamine values during all the duration of anesthesia, from the start of ketamine infusion until the stop of ketamine infusion(30minutes) |
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Inclusion Criteria:
Exclusion Criteria:
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Authors will recruit patients who will undergo breast oncologic surgery and anesthetized with TIVA-TCI propofol,remifentanil and ketamine anesthesia.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Treviso Regional Hospital | Treviso | TV | 31100 | Italy |
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| ID | Term |
|---|---|
| D007649 | Ketamine |
| ID | Term |
|---|---|
| D003510 | Cyclohexanes |
| D003516 | Cycloparaffins |
| D006840 | Hydrocarbons, Alicyclic |
| D006844 | Hydrocarbons, Cyclic |
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| D006838 |
| Hydrocarbons |
| D009930 | Organic Chemicals |