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Medico-economic Evaluation Comparing the Use of Ultrasonic Scissors to the Conventional Techniques of Haemostasis in Thyroid Surgery by Cervicotomy (FOThyr)

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ClinicalTrials.gov Identifier: NCT01551914
Recruitment Status : Unknown
Verified June 2014 by Nantes University Hospital.
Recruitment status was:  Active, not recruiting
First Posted : March 13, 2012
Last Update Posted : July 1, 2014
Information provided by (Responsible Party):
Nantes University Hospital

Brief Summary:
The aim of our study is to evaluate the ultrasonic scissors (Harmonic Focus Ethicon Endo-Surgery Laboratory) as a device of hemostasis in thyroid surgery (total thyroidectomy) by cervicotomy, and to show a decrease in transient hypoparathyroidism compared to conventional techniques of haemostasis (clips, ligatures, and bipolar coagulation). Secondary objectives of the study are the evaluation of (i) recurrent nerve morbidity, (ii) postoperative bleeding, (iii) postoperative pain, (iv) cost of both techniques (microcosting), (v) the overall cost of the techniques at six months, (vi) a linking of costs and medical outcomes and (vii) an estimation of the potential impact of new technology on the organization of operating rooms (operating time).

Condition or disease Intervention/treatment Phase
Thyroid Tumor Device: Ultrasonic Scissors (Ethicon) Device: Bipolar Electrosurgical instruments (Medtronic) (SLS- Clips) Phase 3

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 1350 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Medico-economic Evaluation Comparing the Use of Ultrasonic Scissors to the Conventional Techniques of Haemostasis in Thyroid Surgery by Cervicotomy
Study Start Date : March 2012
Estimated Primary Completion Date : October 2014
Estimated Study Completion Date : March 2015

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Thyroid Diseases

Arm Intervention/treatment
Experimental: ultrasonic scissors Device: Ultrasonic Scissors (Ethicon)
Haemostasis using Ultrasonic scissors
Other Name: Harmonic Focus scissors (Ethicon)

Active Comparator: conventional techniques of haemostasis
clips, ligatures, and bipolar coagulation
Device: Bipolar Electrosurgical instruments (Medtronic) (SLS- Clips)
bipolar, monopolar or clip coagulation techniques
Other Names:
  • Bipolar Electrosurgical instruments (Medtronic)
  • SLS- Clips

Primary Outcome Measures :
  1. Immediate hypoparathyroidism (serum calcium <2 mmol/L at day 2) [ Time Frame: Day 2 ]

Secondary Outcome Measures :
  1. Medico-economic evaluation [ Time Frame: Day 0 (Procedure) ]
    Operating time

  2. Medico-economic evaluation [ Time Frame: Day 0 (procedure) ]
    Cost of the two techniques by microcosting

  3. Medico-economic evaluation [ Time Frame: Month 6 ]
    Total cost at month 6

  4. Medico-economic evaluation [ Time Frame: From Day 0 until Month 6 ]
    Incremental cost effectiveness ratio

  5. Operative morbidity [ Time Frame: Month 6 ]
    Final hypoparathyroidism: calcium in the sixth postoperative month inferior than 2 mmol / L

  6. Operative morbidity [ Time Frame: Until Month 6 ]
    Recurrent disease

  7. Operative morbidity [ Time Frame: Day 0 to Day 2 ]
    Hemorrhagic disease

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age > or = 18 yrs
  • With a toxic goiter or not, Graves' disease or thyroid nodule requiring a total thyroidectomy
  • Thyroidectomy under cervicotomy
  • No echographic criteria to suspect a cancer: poorly defined nodules, microcalcifications, cervical nodes
  • Patient covered by social security
  • Patient's informed and written consent
  • Possible follow-up during 6 months

Exclusion Criteria:

  • Minors and adults under guardianship
  • Preoperatively known thyroid cancer by cytology
  • Planned partial thyroidectomy
  • Peri-operatively antiplatelet intake
  • Preoperatively ENT examination (if performed) finding a vocal cords affection
  • Diving goiter (> 3 cm below the sternal notch)
  • Surgery using videoscopy
  • Lack of possible monitoring during the 6 months after surgery
  • History of anterior cervical surgery
  • Pregnancy and breast-feeding
  • hypercalcemia (calcemia> 2.6 mmol/l)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01551914

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CHU Nantes
Nantes, France, 44000
Sponsors and Collaborators
Nantes University Hospital
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Principal Investigator: Eric Mirallié, Professor CHU Nantes
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Nantes University Hospital
ClinicalTrials.gov Identifier: NCT01551914    
Other Study ID Numbers: RC11_0148
First Posted: March 13, 2012    Key Record Dates
Last Update Posted: July 1, 2014
Last Verified: June 2014
Keywords provided by Nantes University Hospital:
Ultrasonic scissors
Additional relevant MeSH terms:
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Thyroid Neoplasms
Thyroid Diseases
Endocrine System Diseases
Endocrine Gland Neoplasms
Neoplasms by Site
Head and Neck Neoplasms