Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Breast Diseases

Skin Diseases

Central Nervous System Depressants

All Drugs and Chemicals

Analgesics

Anesthetics

Ropivacaine

Morphine

Anesthetics, Local

Analgesics, Opioid

Anesthetics, General

Patients in the experimental arm will receive an erector spinae plane block prior to induction of general anesthetic :- 150 mg of Ropivacaine : 40cc of Ropivacaine (3.75mg/cc)

* An intravenous patient controlled analgesia device will be given to the patients postoperatively

Patients allocated to the placebo-control arm will receive a sham erector spinae plane block .they will receive a placebo injection of normal saline in a fashion almost identical to that of the ESP block:- 40 cc of normal saline will be injected

-An intravenous patient controlled analgesia device will be given to the patients postoperatively

The ESPB will be done in a sitting position using linear ultrasound probe (L10) of MySonoU6 machine. The blocks will be performed at the T4-T5 level of the spine using an in-plane approach. A linear probe will be placed 2-3 cm laterally to the spine using a sagittal approach. Three muscles will be identified superficial to the transverse process shadow as follows: trapezius, rhomboid major, and erector spinae. Local anesthetic (LA) is injected between the erector spinae muscle and transverse process. Following confirmation of the correct position of the needle tip with administration of 0.5-1 ml of the fluid. Then 40cc of Ropivacaine (3.75mg/cc) will be injected .The distribution will be observed in both cranial and caudal directions.

erector spinae plane block

The sham ESPB will be done in a sitting position using linear ultrasound probe (L10) of MySonoU6 machine. The blocks will be performed at the T4-T5 level of the spine using an in-plane approach. A linear probe will be placed 2-3 cm laterally to the spine using a sagittal approach. Three muscles will be identified superficial to the transverse process shadow as follows: trapezius, rhomboid major, and erector spinae. Following confirmation of the correct position of the needle tip with administration of 0.5-1 ml of the fluid a total of 40 mL of fluid will be injected next between the erector spinae muscle and transverse process. Then 40cc of normal saline will be injected.The distribution will be observed in both cranial and caudal directions.

sham erector spinae plane block

Hayen Maghrebi, PROFESSOR

Breast cancer surgery is one of the most common surgeries, due to the high incidence of breast cancer. Unfortunately, patients experience significant postoperative acute pain, placing them at risk for increased clinical morbidity and the development of disabling chronic pain which may rich up to 55% . The intensity of perioperative pain experienced by the patient is one of the best predictors of chronic pain.

However, postoperative analgesia in breast cancer surgery is difficult due to the extensive nature of the surgery and the complex innervation of the breast.

Several newly described regional anesthesia techniques exist to control perioperative pain, including the Paravertebral block (PVB) which has been proved to be the most effective one. The anatomic proximity of the pleura and central neuraxial system makes it a particularly challenging technique and carrying a risk of pneumothorax.

The Erector Spinae Plane Block (ESPB) is a novel interfascial plane block described by Forero et al in September 2016. Local anesthetic injection is performed beneath the erector spinae muscle. Local anesthetic (LA) expected to achieve paravertebral spread of three vertebral levels cranially and four levels caudally, blocking the dorsal and ventral rami of the spinal nerves.The easy, fast and safe execution of ESPB makes it a promising technique in the context of surgical pain during breast cancer surgery.

There is no sufficient randomized controlled trials that assess the effectiveness of ESPB in controlling post-operative breast surgery pain.

The main purpose of this study is to evaluate the postoperative analgesic effect of Ultrasound-guided ESPB in patients undergoing breast cancer surgery.

It is a prospective double blind trial. Sixty female patient aged between 20-65 years old with American Society of Anesthesiologists (ASA) physical status I-II and scheduled for elective surgery for breast cancer were included in the study. Only unilateral surgical procedures will be included. The patients will be randomized into two groups:

Group B (ESP block): Patients in the experimental arm will receive an ESPB prior to induction of general anesthetic.

Group P: (sham ESP block): Patients allocated to the placebo-control arm will receive a placebo injection of normal saline in almost identical fashion to that of the ESP block.

Intravenous access will be obtained with an 18-gauge intravenous (IV) cannula in the contralateral upper limb of the surgical site and monitors (pulse oximeter, electrocardiography, non-invasive blood pressure (NIBP) will be applied.

All blocks will be performed before induction of general anesthesia.

ESPB technique:

The ESPB will be done in the sitting position using linear ultrasound probe (L10) of MySonoU6 machine. The blocks will be performed at the T4-T5 level of the spine using an in-plane approach. A linear probe will be placed 2-3 cm laterally to the spine using a sagittal approach. Three muscles will be identified superficial to the transverse process shadow as follows: trapezius, rhomboid major, and erector spinae. Local anesthetic (LA) is injected between the erector spinae muscle and transverse process. Following confirmation of the correct position of the needle tip with administration of 0.5-1 ml of the fluid a total of 40 mL of fluid will be injected next. The distribution will be observed in both cranial and caudal directions.

* Group B (ESP block) will receive 150 mg of Ropivacaine : 40cc of Ropivacaine (3.75mg/cc).
* Group P (Sham ESP block) will receive 40 cc of normal saline.

General Anesthesia:

All patients will receive pre-oxygenation with 100% O2 for 3 min. Anesthesia will be induced by using fentanyl 2μg/kg, Propofol 2-3 mg/kg and Atracurium 0.5 mg/kg. During anesthesia maintenance, monitoring will include Pulse Oximetry, an Electrocardiogram, Non-Invasive Blood Pressure (NIBP), end-tidal Carbon Dioxide, End-Tidal Sevoflurane, and Fraction of Inspired Oxygen.

The reinjection of 0.5μg/kg of fentanyl will be given intraoperatively either when heart rate or Non-Invasive Blood Pressure (NIBP) report an increase by more than 20% of the basal records.

Paracetamol 1 g IV and Ketoprofen 100 mg intramuscular (IM) will be administered for postoperative analgesia at the end of surgery. Anesthesia will be discontinued and tracheal extubation will be done once patient fulfilled the extubation criteria. In the recovery room, all patients will be given a patient-controlled analgesia device (PCA) containing morphine 1 mg/ml-1 ,set to deliver a 1 mg bolus dose of morphine, with an 5 min lockout time and 12mg 1 h limit. Postoperative pain will be assessed using a visual analogue scales (VAS) scores ranging from zero (no pain) to 10 (worst imaginable pain). The VAS scores will be recorded at 1,2,4,8 6, 12, 16, 20 and 24 h postoperatively.If VAS scores are superior to 6 the investigators will resort to rescue analgesia as following: If 6\<VAS\<8: paracetamol 1g IV will be administered and if VAS\>8: paracetamol 1g IV associated to ketoprofen100mg IM.

Incidence of nausea and vomiting, and total morphine consumption during the 24-h postoperative period will be recorded.

Postoperative Analgesia in Breast Cancer Surgery: Safety and Efficiency of Ultrasound Guided Erector Spinae Plane Block

Postoperative Analgesia in Breast Cancer Surgery: Safety and Efficiency of Ultrasound Guided Erector Spinae Plane Block, a Randomized Controlled Double Blinded Trial

All patients will be provided with IV morphine PCA and morphine consumption within 24 hour postoperatively will be recorded for both groups.

Postoperative pain will be assessed using a VAS ranging from 0 (no pain) to 10 (worst imaginable pain).The VAS will be recorded at 1,2,4,8 6, 12 ,16,20 and 24 h postoperatively.

The investigators will compare total morphine demand in both groups during the first 24h after surgery.

The investigators will compare the timing of the first request for morphine in both groups during the first 24h after surgery.

The investigators will record and compare the timing of first rescue analgesia and total rescue analgesia requirement.

If 6\<VAS\<8: paracetamol 1g iv will be administered If VAS\>8:paracetamol 1g iv associated to ketoprofen100mg IM will be administered.

The investigators will record the total dose of Fentanyl (µg) required during surgery.

Fentanyl will be given intraoperatively either when heart rate or Non-Invasive Blood Pressure (NIBP) report an increase by more than 20% of the basal records.

Incidence of postoperative nausea and vomiting will be recorded.

The occurence of morphine related side effects such as pruritus,urinary retention,hypotension,respiratory distress and sedation will be recorded.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Postoperative Analgesia in Breast Cancer Surgery: Safety and Efficiency of Ultrasound Guided Erector Spinae Plane Block	NCT03769428	Breast Cancer S... Postoperative A...	erector spinae ... sham erector sp...	20 Years - 65 Years	University Tunis El Manar
Postoperative Analgesia in Breast Cancer Surgery: Safety and Efficiency of Ultrasound Guided Erector Spinae Plane Block	NCT03769428	Breast Cancer S... Postoperative A...	erector spinae ... sham erector sp...	20 Years - 65 Years	University Tunis El Manar

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