Paravertebral Block Versus Erector Spinae Plane Block for Modified Radical Mastectomy in Womens.

2018-08-08 16:21:13 | BioPortfolio


postoperative pain following Modified radical mastectomy is severe specially after dissection of tissues .paravertebral plane block provides an excellent postoperative analgesia for women's,but it carry the risk of pneumothorax which it reported in some cases.Erector spinae plane block is a recent block has been mentioned in many case reports as a safe,quick and can be used in outpatient setting. we use a comparative study to compare the postoperative analgesia between both blocks and the affection of postoperative pain following both blocks if any on pulmonary functions.


Postoperative pain is one of the commonest problems encountered by anesthesiologists in their practice, especially after radical mastectomy surgeries , in which post-operative pain would cause a restrictive respiratory dysfunction, which is associated with poor postoperative outcomes.

Postoperative pulmonary complications (PPCs) are the leading cause of death and increase hospital care expenditures in cardiothoracic and non- cardiothoracic surgery. Included under the heading of (PPCs) are respiratory failure, pneumonia, atelectasis, and exacerbation of chronic obstructive pulmonary disease.

Modified radical mastectomy, usually performed for the treatment of breast cancer, is associated with considerable acute postoperative pain and restricted shoulder mobility An estimated 40% of women report significant pain symptoms following mastectomy Poor pain relief has been associated with additional healthcare costs, resource utilization and prolonged inpatient stay after surgery.

the thoracic paravertebral block (TPVB) is the most widely used technique to provide postoperative analgesia after breast surgeries Advantages of a TPVB technique include reduced postoperative pain, analgesic consumption and shorter post anesthesia care unit (PACU) stay There is also evidence to suggest that TPVB may have a favorable impact on cancer recurrence after mastectomy. Paravertebral blockade results in somatosensory and sympathetic blockade after injection of local anesthetic solution to the paravertebral space posterior to the pleura.

Erector spinae plane (ESP) block is a recently described technique which may be an alternative to PVB for providing thoracic analgesia. Numerous case reports and case series describe ESP block for the management of acute and chronic thoracic pain. It involves injection of local anesthetic into the fascial plane deep to erector spinae muscle.

Radiological imaging in a cadaver model has demonstrated that a single injection at the level of the T5 transverse process produced cranio-caudal spread between C7 and T8 . This accounts for the extensive sensory block that has been observed in case reports and is at least as extensive as the spread seen with TPVB ESP is a more superficial block with a better defined end-point - injection between the bony transverse process and erector spinae muscle. A more superficial ultrasound-guided block will be faster to perform and less painful for the patient. Furthermore, ESP does not have the same risk of pneumothorax as TPVB. There have been no randomized controlled trials involving ESP to date. All descriptions of the technique have been in case report / series format.

The investigators hypothesize that ESP block efficacy is not inferior to TPVB with reference to dermatomal sensory spread and analgesic efficacy, while being easier to perform, has less associated discomfort and fewer complication risk ESP has been no randomized in many case trials and they found that it effective as postoperative analgesia in modified radical mastectomy.

Study Design


Pain, Postoperative


Erector spinae plane block, Paravertebral plane block


Not yet recruiting


Assiut University

Results (where available)

View Results


Published on BioPortfolio: 2018-08-08T16:21:13-0400

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Medical and Biotech [MESH] Definitions

Interruption of sympathetic pathways, by local injection of an anesthetic agent, at any of four levels: peripheral nerve block, sympathetic ganglion block, extradural block, and subarachnoid block.

Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.

Imaging methods that result in sharp images of objects located on a chosen plane and blurred images located above or below the plane.

A malocclusion in which maxillary incisor and canine teeth project over the mandiblar teeth excessively. The overlap is measured perpendicular to the occlusal plane and is also called vertical overlap. When the overlap is measured parallel to the occlusal plane it is referred to as overjet.

Impaired or delayed impulse conduction between the right and left HEART ATRIA. Advanced interatrial blocks are often associated with arrhythmias (e.g., ATRIAL FLUTTER; and ATRIAL FIBRILLATION), direct conduction block via the Bachmann's bundle and concomitant left atrial enlargement. Syndrome of advanced interatrial block associated with SUPRAVENTRICULAR TACHYCARDIA is referred to as Bayes syndrome.

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