Impact of Novel Thoracic Wall Blocks With Dexmetomidine on Inflammatory Markers Following Breast Cancer Surgery

NCT ID: NCT04860115

Last Updated: 2021-09-28

Study Results

Results pending

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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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-01

Study Completion Date

2023-12-01

Brief Summary

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The study will test the hypothesis that inflammatory markers measured at 24 hours after breast cancer surgery will be lower in patients receiving PECS II and PIFB blocks, supplemented with dexmetomidine compared to standard care group.

Detailed Description

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Breast cancer is a devastating disease. Surgery is the mainstay of treatment which can lead to ongoing patient difficulties. Severe acute pain after surgery is one of major risk factors for developing persistent postsurgical pain. Subsequent physiological stress caused by this severe pain may negatively influence the immune response leading to a worse prognosis.

Regional anesthesia is very effective in management of peri- and postoperative pain. Epidural block, paravertebral block and intercostal nerve blocks have been proven over time to be effective in preventing postoperative pain. However, their widespread use has been hampered by technical difficulty and inherent risks.

Unlike the aforementioned blocks, novel thoracic wall blocks, namely modified pectoralis block (PECS II) and pecto-intercostal fascial block (PIFB) are safe, simple and effective.

Efforts to prolong and improve analgesia following single shot blocks has led to the introduction of adjuvants into the local anesthetic. Dexmetomidine is a superselective Alpha 2 agonist with a proven ability to prolong the duration of neuraxial, peripheral nerve and interfascial plane blocks.

Chronic inflammation is recognized as a risk factor for initiation, progression and further spread of malignant growth. Surgical insult leads to inflammatory response which facilitates the development of a metastatic disease. Many inflammatory markers were proven to be independent prognostic factors in breast cancer patients.

The investigators propose to study the impact of novel thoracic wall blocks with dexmetomidine on simple inflammatory markers obtained from full blood count (NLR, PLR, NPR, PDW, MPV, RDW) after breast cancer surgery.

Conditions

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Inflammatory Markers

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

120 patients randomized into two groups of 60 patients. Group B (PECS II+PIFB with dexmetomidine) and Group C (control).
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors
Intervention will be done under general anesthesia so participant will be blinded and primary outcome which will be laboratory test will be assessed by a person not aware of intervention.

Study Groups

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Block group

Patients in a Block group will be anesthetized and receive PECS II+PIFB with dexmetomidine prior to their surgery.

Group Type EXPERIMENTAL

Modified pectoralis block (PEC II) and pecto-intercostal fascial plane block (PIFB)

Intervention Type PROCEDURE

PECS II: Ultrasound guided block involving injection of 20 ml of 0.25% L-bupivacaine with dexmetomidine into an interfascial plane between the serratus anterior muscle and the external intercostal muscles followed by the needle withdrawal into an interfascial plane between the pectoralis major and pectoralis minor muscle where further 10ml will be administered.

PIFB: Ultrasound guided block involving injection of 10 ml of 0.25% L-bupivacaine with dexmetomidine into an iterfascial plane between the pectoralis major and the intercostal muscles approximately 2 cm laterally from the sternum to cover T2 to T6 dermatomes.

Control group

Patients in a Control group will receive a standard general anesthesia the same way as patients in the interventional group but without regional anesthesia.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Modified pectoralis block (PEC II) and pecto-intercostal fascial plane block (PIFB)

PECS II: Ultrasound guided block involving injection of 20 ml of 0.25% L-bupivacaine with dexmetomidine into an interfascial plane between the serratus anterior muscle and the external intercostal muscles followed by the needle withdrawal into an interfascial plane between the pectoralis major and pectoralis minor muscle where further 10ml will be administered.

PIFB: Ultrasound guided block involving injection of 10 ml of 0.25% L-bupivacaine with dexmetomidine into an iterfascial plane between the pectoralis major and the intercostal muscles approximately 2 cm laterally from the sternum to cover T2 to T6 dermatomes.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Female patients with ductal carcinoma (stage 1 to 3) undergoing primary potentially curative unilateral mastectomy.
* Older than 18 years
* ASA I-III

Exclusion Criteria

* Weight \< 50 kg
* BMI \> 35
* Allergy to local anaesthetic or dexmetomidine
* Contraindications to NSAIDs use
* Local infection over block site
* Coagulopathy
* Preexisting chronic pain
* Pregnancy
* Autoimmune disease
* Inability to give informed consent
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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F.D. Roosevelt Teaching Hospital with Policlinic Banska Bystrica

OTHER

Sponsor Role collaborator

Louis Pasteur University Hospital Kosice

UNKNOWN

Sponsor Role collaborator

St. Elizabeth Cancer Institute, Slovakia

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Tomas Hitka, MD

Role: PRINCIPAL_INVESTIGATOR

St. Elizabeth Cancer Institute

Central Contacts

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Tomas Hitka, MD

Role: CONTACT

00421902753979

Roman Zahorec, MD

Role: CONTACT

00421 2 32249210

References

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Other Identifiers

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07-2021/EK OUSA

Identifier Type: -

Identifier Source: org_study_id

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