Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
EARLY_PHASE1
140 participants
INTERVENTIONAL
2016-04-30
2019-02-28
Brief Summary
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Detailed Description
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After arrived in the operating room，the participants in the control group are accepted the general anesthesia.Whereas，after anesthesia induction，the participants in the Pecs group receive an ultrasound-guided Pecs block and a 15 minute observation time prior before the start of the operation.
Pecs block technology： A broadband (5-12 hertz) linear array probe of Sonosite Edge portable ultrasound system (Sonosite Inc,Bethel,Washington) is used, with an imaging depth of 4 to 6 cm. After cleaning the infraclavicular and axillary regions with chlorhexidine, the probe is placed below the lateral third of the clavicle, similar to what is done when performing infraclavicular brachial plexus block. After recognition of the appropriate anatomical structures, the skin puncture point is infiltrated with 2% lignocaine, then the block is performed by using a 20-gauge Tuohy needle. The needle is advanced to the tissue plane between the pectoralis major and pectoralis minor muscle at the vicinity of the pectoral branch of the acromiothoracic artery, and 10 mL of 0.35% ropivacaine deposited. In a similar manner, 20 mL is deposited at the level of the third rib below the serratus anterior muscle with the intent of spreading injectate to the axilla.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
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Ropivacaine
Ropivacaine hydrochloride injection； Generic name：Naropin； Dosage form：Liquid、Injectable formulation； Dosage：105mg；30ml； Frequency：Once.
Ropivacaine
Local injection of local anesthetic into the fascial spaces
Normal saline
Medical Normal saline Generic name：Normal saline； Dosage form：Liquid、Injectable formulation； Dosage：30ml； Frequency：Once.
Normal saline
Sodium chloride solution commonly used in clinical which equal to human plasma osmotic pressure.
Interventions
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Ropivacaine
Local injection of local anesthetic into the fascial spaces
Normal saline
Sodium chloride solution commonly used in clinical which equal to human plasma osmotic pressure.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* American Society of Anesthesiologists physical status 1-3
* BMI 18-35 kg/m2
Exclusion Criteria
* Uncontrolled hypertension；
* Allergy to local anesthetics；
* Pregnancy；
* Alcohol or drug abuse；
* Prior breast surgery except for diagnostic biopsies；
* Contraindication to the use of regional anesthesia；
* History of chronic pain or psychiatric disorder and pregnant patients；
* Consumption of NSAID, cyclooxygenase-2 inhibitors or paracetamol within 24 hours before the investigation；
* Infection at the needle site.
* Inability to properly describe postoperative pain to investigators (eg, language barrier, neuropsychiatric disorder)
18 Years
70 Years
FEMALE
No
Sponsors
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First Affiliated Hospital Xi'an Jiaotong University
OTHER
Responsible Party
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Locations
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First Affiliated Hosipital of Xi'an Jiaotong Univercity
Xi'an, Shaanxi, China
Countries
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Central Contacts
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Facility Contacts
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References
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Amaya F, Hosokawa T, Okamoto A, Matsuda M, Yamaguchi Y, Yamakita S, Taguchi T, Sawa T. Can acute pain treatment reduce postsurgical comorbidity after breast cancer surgery? A literature review. Biomed Res Int. 2015;2015:641508. doi: 10.1155/2015/641508. Epub 2015 Oct 1.
Oeffinger KC, Fontham ET, Etzioni R, Herzig A, Michaelson JS, Shih YC, Walter LC, Church TR, Flowers CR, LaMonte SJ, Wolf AM, DeSantis C, Lortet-Tieulent J, Andrews K, Manassaram-Baptiste D, Saslow D, Smith RA, Brawley OW, Wender R; American Cancer Society. Breast Cancer Screening for Women at Average Risk: 2015 Guideline Update From the American Cancer Society. JAMA. 2015 Oct 20;314(15):1599-614. doi: 10.1001/jama.2015.12783.
Bolin ED, Harvey NR, Wilson SH. Regional anesthesia for breast surgery: Techniques and benefits. Current Anesthesiology Reports 2015;5:217-224.
Bashandy GM, Abbas DN. Pectoral nerves I and II blocks in multimodal analgesia for breast cancer surgery: a randomized clinical trial. Reg Anesth Pain Med. 2015 Jan-Feb;40(1):68-74. doi: 10.1097/AAP.0000000000000163.
Poleshuck EL, Katz J, Andrus CH, Hogan LA, Jung BF, Kulick DI, Dworkin RH. Risk factors for chronic pain following breast cancer surgery: a prospective study. J Pain. 2006 Sep;7(9):626-34. doi: 10.1016/j.jpain.2006.02.007.
Gartner R, Jensen MB, Nielsen J, Ewertz M, Kroman N, Kehlet H. Prevalence of and factors associated with persistent pain following breast cancer surgery. JAMA. 2009 Nov 11;302(18):1985-92. doi: 10.1001/jama.2009.1568.
Jung BF, Ahrendt GM, Oaklander AL, Dworkin RH. Neuropathic pain following breast cancer surgery: proposed classification and research update. Pain. 2003 Jul;104(1-2):1-13. doi: 10.1016/s0304-3959(03)00241-0. No abstract available.
Blanco R. The 'pecs block': a novel technique for providing analgesia after breast surgery. Anaesthesia. 2011 Sep;66(9):847-8. doi: 10.1111/j.1365-2044.2011.06838.x. No abstract available.
Blanco R, Fajardo M, Parras Maldonado T. Ultrasound description of Pecs II (modified Pecs I): a novel approach to breast surgery. Rev Esp Anestesiol Reanim. 2012 Nov;59(9):470-5. doi: 10.1016/j.redar.2012.07.003. Epub 2012 Aug 29.
Perez MF, Miguel JG, de la Torre PA. A new approach to pectoralis block. Anaesthesia. 2013 Apr;68(4):430. doi: 10.1111/anae.12186. No abstract available.
Perez MF, Duany O, de la Torre PA. Redefining PECS Blocks for Postmastectomy Analgesia. Reg Anesth Pain Med. 2015 Nov-Dec;40(6):729-30. doi: 10.1097/AAP.0000000000000243. No abstract available.
Ibarra MM, S-Carralero GC, Vicente GU, Cuartero del Pozo A, Lopez Rincon R, Fajardo del Castillo MJ. [Chronic postoperative pain after general anesthesia with or without a single-dose preincisional paravertebral nerve block in radical breast cancer surgery]. Rev Esp Anestesiol Reanim. 2011 May;58(5):290-4. doi: 10.1016/s0034-9356(11)70064-0. Spanish.
Karmakar MK, Samy W, Li JW, Lee A, Chan WC, Chen PP, Ho AM. Thoracic paravertebral block and its effects on chronic pain and health-related quality of life after modified radical mastectomy. Reg Anesth Pain Med. 2014 Jul-Aug;39(4):289-98. doi: 10.1097/AAP.0000000000000113.
Vilholm OJ, Cold S, Rasmussen L, Sindrup SH. The postmastectomy pain syndrome: an epidemiological study on the prevalence of chronic pain after surgery for breast cancer. Br J Cancer. 2008 Aug 19;99(4):604-10. doi: 10.1038/sj.bjc.6604534.
Other Identifiers
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XJTU1AF-CRS-2016-003
Identifier Type: -
Identifier Source: org_study_id
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