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Trial registered on ANZCTR
Registration number
ACTRN12617000661370
Ethics application status
Approved
Date submitted
2/03/2017
Date registered
8/05/2017
Date last updated
11/04/2019
Date data sharing statement initially provided
11/04/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
Comparison of the effects of Spinal Anesthesia on QT Dispersion in women electing to undergo Caesarean section.
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Scientific title
Comparison of the effects of Spinal Anesthesia on QT Dispersion in women electing to undergo Caesarean section: prospective study.
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Secondary ID [1]
291215
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none
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Universal Trial Number (UTN)
U1111-1168-3483
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Trial acronym
CESAQTCS
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
otherwise healthy parturients planned for cesarean section
302201
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Condition category
Condition code
Anaesthesiology
301810
301810
0
0
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Other anaesthesiology
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Reproductive Health and Childbirth
302316
302316
0
0
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Childbirth and postnatal care
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Surgery
302317
302317
0
0
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Other surgery
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
patients will allocate to two group
Group 1: Equal and over 39th gestational age
Group 2: Under 39th gestational age
All patients will be monitored and the basal vital functions (HR, SpO2, NIBP, ECG ) will be recorded with admission into the OR. ECG monitorization will perform and their control ECG records was take.
All patients will placed into a sitting position and spinal anesthesia will be performed with a median approach at a level of L3-L4, with a 25 G Quincke type spinal needle and % 0.5 2.0 ml bupivacaine by anaesthesiologist.
After succesful administration of anesthesia, all patients will be placed into supine position, monitored and administered oxygene via a venturi mask after administration of spinal anesthesia until the completion of surgery in %21 inspirated fraction.
ECG records will take 1 , 5 , and 10 minutes after the block. Bromage scale (BS) scores, heart rate, blood pressure, peripheral oxygen saturation, respiration rate values and sensory block levels with pinprick test will record at minutes 1, 5 and 10 of spinal anesthesia
and every 5 minutes thereafter after the end of surgery. end of surgery will record ECG.
Standard 12 derivation ECG recordings obtained with a paper speed of 25 mm.sec-1 and a defl ection of 10 mm.mV-1 of patients participating in the study will analyze (Nihon Kohden cardiofaxm ). We will calculate heart rate using mean RR time.
Spinal block levels, duration of surgery, APGAR scores, vasopressor consumption will be recorded.
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Intervention code [1]
297285
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Prevention
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Intervention code [2]
297915
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Treatment: Drugs
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Comparator / control treatment
patients will allocate to two group
Group 1: Equal and over 39th gestational age
Group 2: Under 39th gestational age
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Control group
Active
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Outcomes
Primary outcome [1]
301319
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The examine the effects of spinal anesthesia on QT in different pregnancy week women is the primary goal of the study.
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Assessment method [1]
301319
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Timepoint [1]
301319
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ECG monitorization will perform and Pre-operatively ECG records will take. After the block is done ECG records will take every 5 minutes for duration of the procedure until the operation is complete. post-operative 60 minutes, ECG records will take.
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Primary outcome [2]
301723
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The examine the effects of spinal anesthesia on QTc in different pregnancy week women is the primary goal of the study.
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Assessment method [2]
301723
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Timepoint [2]
301723
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ECG monitorization will perform and Pre-operatively ECG records will take. After the block is done ECG records will take every 5 minutes for duration of the procedure until the operation is complete. post-operative 60 minutes, ECG records will take.
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Primary outcome [3]
301724
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The examine the effects of spinal anesthesia on QT dispersion in different pregnancy week women is the primary goal of the study.
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Assessment method [3]
301724
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Timepoint [3]
301724
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ECG monitorization will perform and Pre-operatively ECG records will take. After the block is done ECG records will take every 5 minutes for duration of the procedure until the operation is complete. post-operative 60 minutes, ECG records will take.
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Secondary outcome [1]
332293
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APGAR scores which will be evaluated in the OR after delivery by a pediatrist.
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Assessment method [1]
332293
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Timepoint [1]
332293
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APGAR scores in 1 minute and 5 minutes after delivery
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Eligibility
Key inclusion criteria
Forty pregnant women age between greater than or equal to 18 and less than or equal to 45,
height greater than or equal to 1.60 cm, weight between greater than or equal to 60 and less than or equal to 100 kg,
placed in the ASA risk group I-II in their preanesthetic evaluation and scheduled for elective cesarean surgery will included in the study.
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Minimum age
18
Years
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Maximum age
45
Years
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Sex
Females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Exclusion criteria is refusal to participate in the study, the existence of brain tumors, scalded skin syndrome (SSS infection), spinal cord and peripheral nervous system diseases (poliomyelitis, multiple sclerosis, demyelinating diseases), hemorrhagic and hypovolemic shock, severe anemia, increased intracranial pressure, aortic and valvular heart disease, cardiac decompensation, systemic infection (generalized sepsis and bacteremia), local infection (dermal infections in puncture site of spinal needle, etc.), congenital spinal anomalies, scoliosis, post-traumatic vertebral injuries, vertebral colon metastatic lesions, increased abdominal pressure, chronic severe headache, anticoagulant drug use and anatomic diffi culties, electrolyte disturbances diabetes mellitus, hypothyroidism, hyperthyroidism, cardiomyopathy, atrial and/or ventricular hypertrophy on ECG, cardiomegaly, valvular disease, cardiac failure or chronic disease, patients with excessive smoking and alcohol consumption and used medication causing QT interval prolongation.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people administering the treatment/s
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Intervention assignment
Parallel
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Other design features
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Phase
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
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Actual
4/09/2017
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Date of last participant enrolment
Anticipated
17/05/2017
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Actual
2/10/2017
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Date of last data collection
Anticipated
19/05/2017
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Actual
8/01/2018
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Sample size
Target
40
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Accrual to date
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Final
40
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Recruitment outside Australia
Country [1]
8703
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Turkey
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State/province [1]
8703
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sanliurfa
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Funding & Sponsors
Funding source category [1]
295663
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University
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Name [1]
295663
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Harran University
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Address [1]
295663
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Harran University School of Medicine, Research and Training Hospital
Osmanbey Campus
Sanliurfa-Mardin Karayolu Uzeri 18.Km
Sanliurfa/Turkey
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Country [1]
295663
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Turkey
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Primary sponsor type
Hospital
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Name
Harran University School of Medicine, Research and Training Hospital
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Address
Harran University School of Medicine, Research and Training Hospital
Osmanbey Campus
Sanliurfa-Mardin Karayolu Uzeri 18.Km
Sanliurfa/Turkey
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Country
Turkey
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Secondary sponsor category [1]
294509
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None
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Name [1]
294509
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Address [1]
294509
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Country [1]
294509
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
296979
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Harran university medical faculty ethics committe
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Ethics committee address [1]
296979
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Ethics committee country [1]
296979
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Turkey
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Date submitted for ethics approval [1]
296979
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Approval date [1]
296979
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09/02/2017
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Ethics approval number [1]
296979
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Summary
Brief summary
The principal cardiovascular changes in pregnancy are increased sympathetic hyperactivity and systemic vascular resistance. Blood volume, heart rate, venous pressure in the lower extremity, and heart rate increase.In addition, peripheral resistance and pulmonary vascular resistance and blood pressure can be reduced. As the gestation week progresses It also affects the heart conduction system and makes patients more susceptible to arrhythmia. Regional anesthesia in cesarean surgeries has the advantages of allowing the mother to be awake during delivery and not neeeding airway manipulation, keeping mother’s airway reflexes, decreasing blood loss, reducing the risk of druginduced fetal depression, and carrying the need for analgesia over to the postoperative stage. But Neuroaxial blockade, such as spinal anesthesia, has been shown to modulate the effects of the stress response and sympathetic overactivity in pregnancy . The QT interval, a marker of ventricular repolarization is diagnosed when this value is more than 440 ms . A prolonged QT interval can cause serious cardiac rhythm problems such as ventricular tachydysrhythmias. Therefore, We aimed to investigate the effects of Spine Anesthesia on QT Dispersion in patients with different gestational weeks who were scheduled for elective cesarean section.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
72606
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A/Prof Mahmut Alp Karahan
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Address
72606
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Harran University School of Medicine, Research and Training Hospital
Osmanbey Campus
Sanliurfa-Mardin Karayolu Uzeri 18.Km
Sanliurfa/Turkey
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Country
72606
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Turkey
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Phone
72606
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+905327808997
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Fax
72606
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Email
72606
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[email protected]
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Contact person for public queries
Name
72607
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Mahmut Alp Karahan
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Address
72607
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Harran University School of Medicine, Research and Training Hospital
Osmanbey Campus
Sanliurfa-Mardin Karayolu Uzeri 18.Km
Sanliurfa/Turkey
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Country
72607
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Turkey
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Phone
72607
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+905327808997
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Fax
72607
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Email
72607
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[email protected]
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Contact person for scientific queries
Name
72608
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Mahmut Alp Karahan
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Address
72608
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Harran University School of Medicine, Research and Training Hospital
Osmanbey Campus
Sanliurfa-Mardin Karayolu Uzeri 18.Km
Sanliurfa/Turkey
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Country
72608
0
Turkey
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Phone
72608
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+905327808997
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Fax
72608
0
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Email
72608
0
[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Dimensions AI
The relationship between gestational week and QT dispersion in cesarean section patients undergoing spinal anaesthesia: A prospective study
2021
https://doi.org/10.1111/ijcp.14154
N.B. These documents automatically identified may not have been verified by the study sponsor.
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