Laser Photocoagulation in Twin to Twin Transfusion Syndrome
NCT ID: NCT02506049
Last Updated: 2020-11-13
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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COMPLETED
NA
1 participants
INTERVENTIONAL
2010-04-30
2020-10-28
Brief Summary
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Detailed Description
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More specifically, after initial referral to our center for TTTS management, patients will undergo targeted ultrasound to confirm the diagnosis. If confirmed, patients will undergo extensive counseling regarding various management options. Those patients electing to proceed with selective laser photocoagulation (S-LPC) will undergo the informed consent process. The S-LPC will be performed in the Labor and Delivery (L\&D), Operating Room (OR) at the Regional Medical Center, Regional One Health (RMC,ROH). In the majority of cases, maternal anesthesia will be an epidural. In those cases where the patient is unable to lay supine due to an enlarged uterus (resulting in maternal hypotension or respiratory insufficiency, or maternal anxiety), general anesthesia with intubation will be administered. In rare cases, intravenous sedation with infiltration of a local anesthetic into the skin, deep muscle, and fascia will be used. Following the administration of maternal anesthesia, ultrasound will be performed to assess fetal position, placentation, and select a site for insertion of the operative instruments. A small skin incision will be made following administration of local anesthetic to allow percutaneous access to the recipient gestational sac. An 18 gauge needle will be inserted through the maternal abdomen and uterus into the gestational sac. Once secured in place, the stylet will be removed and a J guide wire will be inserted through the needle. The needle will be removed and a 10-12 Fr (3-3.4 mm) trocar and cannula will be inserted into the sac over the guide wire. The trocar and guide wire will be removed and the fetoscopy instruments will be introduced through the cannula. The procedure is performed under continuous ultrasound guidance. After introduction of the fetoscope and operating sheath, the placenta is inspected by direct visualization for communicating vessels between the recipient and donor twin. A 400-600 micron laser fiber is introduced into the gestational sac via an instrument channel in the operating sheath. The fiber is directed to the communicating vessels, which are then ablated with thermal energy. An average of 7-15 sites will be ablated. At the completion of the procedure the amniotic fluid volume in the recipient sac will be reduced to a normal volume. Follow-up visits to track maternal and fetal progress after the procedure will be scheduled with our group.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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S-LPC:Selective Laser Photocoagulation
S-LPC seals connecting vessels, normalizes flow between twins
S-LPC:Selective Laser Photocoagulation
Under anesthesia (epidural, general anesthesia with intubation, or intravenous sedation with infiltration of a local anesthetic), one treatment with the use of fetoscopy instrument sets for Selective Laser Photocoagulation (S-PLC) to seal the connecting blood vessels, help to normalize blood flow between twins.
Interventions
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S-LPC:Selective Laser Photocoagulation
Under anesthesia (epidural, general anesthesia with intubation, or intravenous sedation with infiltration of a local anesthetic), one treatment with the use of fetoscopy instrument sets for Selective Laser Photocoagulation (S-PLC) to seal the connecting blood vessels, help to normalize blood flow between twins.
Eligibility Criteria
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Inclusion Criteria
16 Weeks
27 Weeks
FEMALE
No
Sponsors
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Regional Medical Center, Regional One Health
UNKNOWN
University of Tennessee
OTHER
Responsible Party
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Principal Investigators
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Giancarlo Mari, M.D., MBA
Role: PRINCIPAL_INVESTIGATOR
Prof. & Chair, UTHSC; Dir.,TN Inst. of Feto-Maternal & Infant Health; Dir., High-Risk Obstetrics Ctr of Excell., Regional Medical Ctr
Locations
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Regional One Health, Regional Medical Center, Rout Center for Women and Children
Memphis, Tennessee, United States
University of Tennessee Health Science Center, OB-GYN
Memphis, Tennessee, United States
Countries
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Other Identifiers
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10-00755-HUD
Identifier Type: -
Identifier Source: org_study_id