Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The principal objective is to notice the relevance of timing performance of femoral block for knee replacement surgery during general anesthesia and analyze the relationship with bilateral bispectral index (BIS) monitoring during induction and maintenance of anesthesia. Otherwise the investigators try to investigate if the timing of performance of this block influence in postoperative variables as pain or blood loss.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Femoral block preoperative | In one group (T1) with performance of femoral block before general anesthesia and administration of bolus of local anesthetic through stimulating catheter (combined anesthesia) | ||
| Femoral block postoperative | In second group (T2) with a administration of local anesthetic through stimulating femoral catheter until awareness of patient (balanced anesthesia). |
Not provided
| Measure | Description | Time Frame |
|---|---|---|
| Sevoflurane requirements | Combined ( femoral block and general anesthesia) or balanced anesthesia ( intravenous analgesics and general anesthesia) is evaluated on the requirements of inhalational hypnotics during surgery. Schedule time when BIS has to be in proper range (40-60): T1 T2 T3 T4 T5 T6 T1 Induction T2 Inflated cuff ischemia T3 Incision T4 Unlocking cuff ischemia T5 End surgery T6 Time to wake the patient from the close of the sevoflurane vaporizer Each time include a period of adjustment in 5 minutes | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Intraoperative and postoperative opiates requirements and relations with CVI | Time surgery and 24,48 and 72 h postoperative |
Not provided
Inclusion Criteria:
-
Exclusion Criteria:
ASA IV, patients with difficult airway management, patients with antecedent of cerebral ischemia, presence of atrioventricular fistula, patients with absent distal pulses or history of vascular surgery in the involved limbs, patients with high risk of deep vein thrombosis.-
Not provided
Not provided
ASA physical status I-III patients scheduled for total knee arthoplasty
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Antoni Sabate Pes, MD PhD DEEA | Hospital Universitari Bellvitge | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Antoni Sabate Pes | L'Hospitalet de Llobregat | Barcelona | 08907 | Spain |
Not provided
Not provided
Not provided
Not provided