The Effect of Breast Reconstruction Surgery Using Tissue Expanders on Respiratory Functions

NCT ID: NCT02491762

Last Updated: 2015-07-15

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

Total Enrollment

45 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-08-31

Study Completion Date

2017-08-31

Brief Summary

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This study evaluates the effect of breast reconstruction surgery on respiratory functions. 45 patients elected for unilateral or bilateral breast reconstruction surgery will go through respiratory function examinations a month prior to the surgery, one month after surgery and three months after surgery.

Detailed Description

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Breast reconstruction surgery using tissue expander and implant technique is the most common breast reconstruction surgery. During this procedure, the surgeon will insert a silicone expander under the Pectoralis Major muscle. In order to fully cover the expander, the surgeon will detach the Serratus Anterior \[SA\] muscle from its natural attachments in the rib cage and will attach the free edges to the lateral edge of the Pectoralis Major muscle. After the wound is healed, a gradual inflation of the expander with a physiological fluid will be done by injecting the fluid into a subcutaneous filling port connected to the expander by silicone tubing. When the tissues around the expander will reach the required size, the tissue expander can be replaced by a permanent silicone implant.

The SA attachments are to the superior angle, medial border and inferior angle of the scapula and to the first to eighth ribs. Its main functions are stabilization and protraction of the scapula and turning the glenoid cavity superiorly in abduction of arms. In addition, the SA is an accessory respiratory muscle: when the scapula is stabilized, its contraction will lift the rib cage in order to help breathing. The importance of the SA in breathing has been examined since the late 19th century and until this day it is not fully agreed upon. Most studies agree that the SA major role in breathing is in deep breaths and is that the muscle is most effective for this purpose when arms are lifted.

Since breast reconstruction procedure includes detachment of the SA from the rib cage and there by canceling its respiratory function, an examination of the respiratory functions before and after the procedure is in order to determine whether or not the overall respiratory functions had been effected.

45 patients elected for unilateral or bilateral breast reconstruction surgery will go through respiratory function examinations a month prior to the surgery, one month after surgery and three months after surgery. The examinations will include the following tests: Spirometry: FVC, FEV1, MVV. Lung capacities: FRC, RV, TLC. Breathing muscle strength: MIP, MEP.

Conditions

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Respiratory Function Breast Reconstruction

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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bilateral

bilateral breast construction candidates will go through respiratory function tests a month prior to surgery, a month after surgery and three months after surgery

respiratory function tests

Intervention Type PROCEDURE

FVC, FEV1, MVV, FRC, RV, TLC, MIP, MEP

unilateral

unilateral breast construction candidates will go through respiratory function tests a month prior to surgery, a month after surgery and three months after surgery

respiratory function tests

Intervention Type PROCEDURE

FVC, FEV1, MVV, FRC, RV, TLC, MIP, MEP

Interventions

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respiratory function tests

FVC, FEV1, MVV, FRC, RV, TLC, MIP, MEP

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* all subjects were elected for a unilateral or bilateral breast reconstruction using tissue expander by the Oncoplastic Committee of the plastic surgery unit in Carmel Medical Center.
* all subjects agrees to enroll in research

Exclusion Criteria

* subject is in a mental or physical condition that does not allow her to go through respiratory function tests.
* subject was found with a respiratory disfunction or disease in the first respiratory function tests.
Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Yaron Har-Shai

OTHER

Sponsor Role lead

Responsible Party

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Yaron Har-Shai

Clinical Professor Yaron Har-Shai

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Yaron Har-Shai, Proffesor

Role: PRINCIPAL_INVESTIGATOR

Carmel Medical Center-Israel

Locations

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Carmel Medical Center

Haifa, , Israel

Site Status

Countries

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Israel

Central Contacts

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Yaron Har-Shai, Proffesor

Role: CONTACT

0507866206

Raviv Allon

Role: CONTACT

0523460305

References

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Other Identifiers

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CMC-15-0029-CTIL

Identifier Type: -

Identifier Source: org_study_id

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