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Surgery-induced pain reveals its own metabolic and inflammatory responses, resulting in a further increase in noxious pathways that are already occurring. Even though it is difficult to distinguish whether the metabolic and inflammatory responses are pain-induced or surgical-induced, it is clear that pain can cause a response. This study aims to investigate the effects of erector spinae plane block on surgery-related stress response with enhanced recovery after cardiac surgery protocol.
The Enhanced Recovery After Cardiac Surgery (ERAS Cardiac) program includes a perioperative multimodal, opioid-sparing pain management plan as an essential component of any comprehensive program. A multimodal pain management plan is nonopioid systemic analgesic agents, regional and local anesthetic techniques, and judicious use of opioids. This study aims to examine inflammatory and hematological parameters in patients who underwent cardiac surgery with ERAS, with and without preoperative bilateral erector spinae plane block (ESP). For this purpose, the presence of an obstacle ESP block application in the preoperative period will be investigated in patients who are prepared for cardiac surgery according to ERAS principles, and the patient's group will be determined accordingly. An analgesia protocol that does not include a regional technique will be applied to the patient in cases such as the patient's refusal to allow preoperative block and the presence of a situation that does not allow blockage in the block area. The perioperative characteristics of ERAS patients with and without ESP block will be examined, intraoperative lactate, and preop-postoperative hemogram-albumin-C reactive protein parameters will be recorded.
ERAS patients with ESP block: After preparation in accordance with the ERAS protocol, ultrasound-guided bilateral ESP block will be performed with 20 ml of 0.025% bupivacaine at T5-7 levels in patients taken to the operating room in the preoperative period, and will be administered intraoperative low-dose remifentanil infusion and sevoflurane anesthesia.
ERAS patients without ESP block: After preparation according to the ERAS protocol, patients will be administered lidocaine, ketamine, paracetamol, and intraoperative low-dose remifentanil infusion and sevoflurane anesthesia.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ESP group | Active Comparator | ESP group patients will be performed ultrasound-guided erector spinae plane block with 20 ml 0.025% Bupivacaine, preoperatively and will receive ERAS cardiac anesthesia protocol |
|
| Conventional group | No Intervention | The conventional group will receive ERAS cardiac anesthesia protocol |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Erector spinae plane block | Procedure | Preoperative ultrasound-guided bilateral erector spinae plane block with 20 ml 0.025% bupivacaine. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Basal measurements- after anesthesia induction | After induction of anesthesia, blood gas analysis will be performed and lactate level (mmol/L) will be recorded. | After anesthesia induction, an average of 5 minutes |
| Basal measurements- after anesthesia induction | After induction of anesthesia, blood gas analysis will be performed and hemoglobin level (g/dL) will be recorded. | After anesthesia induction, an average of 5 minutes |
| Second measurements- after cardiopulmonary bypass initiation | After cardiopulmonary bypass initiation, blood gas analysis will be performed and lactate level (mmol/L) will be recorded. | After cardiopulmonary bypass inititation, an average of 5 minutes |
| Second measurements- after cardiopulmonary bypass initiation | After cardiopulmonary bypass initiation, blood gas analysis will be performed and hemoglobin level (g/dL) will be recorded. | After cardiopulmonary bypass inititation, an average of 5 minutes |
| Third measurements- during cardiopulmonary bypass, at lowest temperature | During cardiopulmonary bypass, at lowest temperature, blood gas analysis will be performed and lactate level (mmol/L) will be recorded. | During cardiopulmonary bypass, an average of 10 minutes |
| Third measurements- during cardiopulmonary bypass, at lowest temperature | During cardiopulmonary bypass, at lowest temperature, blood gas analysis will be performed and hemoglobin level (g/dL) will be recorded. |
| Measure | Description | Time Frame |
|---|---|---|
| Preoperative complete blood count | Preoperative complete blood count will be evaluated and recorded. | The day before surgery, 24 hours |
| Preoperative albumin | Preoperative albumin levels will be evaluated and recorded. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Serdar Günaydın, Professor | Ankara City Hospital Bilkent | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara City Hospital | Ankara | Select State/Province | 06800 | Turkey (Türkiye) |
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| ID | Term |
|---|---|
| D015775 | Fractures, Stress |
| ID | Term |
|---|---|
| D050723 | Fractures, Bone |
| D014947 | Wounds and Injuries |
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| During cardiopulmonary bypass, an average of 10 minutes |
| Fourth measurements- end of cardiopulmonary bypass | At the end of cardiopulmonary bypass, blood gas analysis will be performed and lactate level (mmol/L) will be recorded. | At the end of cardiopulmonary bypass, an average of 10 minutes |
| Fourth measurements- end of cardiopulmonary bypass | At the end of cardiopulmonary bypass, blood gas analysis will be performed and hemoglobin level (g(dL) will be recorded. | At the end of cardiopulmonary bypass, an average of 10 minutes |
| Fifth measurements- end of surgery | At the end of surgery, blood gas analysis will be performed and lactate level (mmol/L) will be recorded. | At the end of surgery, an average of 20 minutes |
| Fifth measurements- end of surgery | At the end of surgery, blood gas analysis will be performed and hemoglobin level (g/dL) will be recorded. | At the end of surgery, an average of 20 minutes |
| The day before surgery, 24 hours |
| Postoperative C reactive protein | Postoperative C reactive protein levels will be evaluated and recorded. | 6 hours after surgery |
| Postoperative complete blood count | Postoperative complete blood count will be evaluated and recorded. | 6 hours after surgery |
| Postoperative albumin | Postoperative albumin levels will be evaluated and recorded. | 6 hours after surgery |