The Effect of Combined Spinal Epidural Anaesthesia on QTc Interval Undergoing Cesarean Section

NCT06018805 | Recruiting

• 1 other identifier: B.30.2.ATA.0.01.00/408
• Study Type: interventional
• Target: 50
• Locations: 1 country
• Sites: 1

Brief Summary

Cesarean section is the operation to deliver the fetus, placenta and membranes by making an abdominal incision in the uterus. Cesarean section is performed for reasons such as head-pelvis incompatibility, fetal malposition, fetal distress, and previous cesarean section. The most important side effects of spinal anaesthesia are problems such as hypotension, bradycardia, low back pain, headache, nausea, vomiting, meningitis, meningismus, and urinary retention. Combined spinal-epidural (BSI) anaesthesia is the application of spinal and epidural anaesthesia together. High-dose local anaesthetics can cause significant hypotension when the epidural block is administered alone. The administration of spinal anaesthesia alone causes changes in arterial resistance, stroke volume, heart rate, cardiac output and arterial blood pressure. Sympathetic blockade leads to arterial vasodilation, and arterial resistance may decrease by 5-20% during spinal anaesthesia. Due to the increased risk of maternal complications in obese pregnant, fetal morbidity and mortality have increased. In addition, supine hypotension syndrome is a common problem in obese pregnant women. The aim of this study is to compare the change in QTc interval in obese and non-obese term pregnancies planned for elective cesarean section with combined spinal epidural anaesthesia. Thus, it is aimed to develop new protocols that will minimize cardiac pathologies during and after surgery in obese pregnant women.

Conditions

Analgesia

Outcome Measures

Primary Outcomes (1)

• QTc interval

  The primary aim of this study was to reveal the difference in QTc interval between groups.

  first 2 hour starting from the time of CSE performed.

Study Arms (2)

Body Mass Index≥30 kg/m2

ACTIVE COMPARATOR

Pregnant women with a Body Mass Index≥30 kg/m2 will be included.

Other: BMI≥30; Combined Spinal Epidural Anesthesia

Body Mass Index: 18,5 - 24,9 kg/m2

ACTIVE COMPARATOR

Pregnant women with a Body Mass Index between 18.5 and 24.9 kg/m2 will be included.

Other: BMI:18,5-24,9; Combined Spinal Epidural Anesthesia

Interventions

BMI≥30; Combined Spinal Epidural Anesthesia OTHER

Combined epidural spinal anesthesia will be performed with the loss of resistance method at constant volume and concentration ( in both patient groups. For QT interval measurements, ECG recordings will be taken before spinal anesthesia, 5 and 30 minutes after the block, and 60 and 120 minutes postoperatively.

Body Mass Index≥30 kg/m2

BMI:18,5-24,9; Combined Spinal Epidural Anesthesia OTHER

Combined epidural spinal anesthesia will be performed with the loss of resistance method at constant volume and concentration in both patient groups. For QT interval measurements, ECG recordings will be taken before spinal anesthesia, 5 and 30 minutes after the block, and 60 and 120 minutes postoperatively.

Body Mass Index: 18,5 - 24,9 kg/m2

Eligibility Criteria

• Age: 18 Years - 45 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Participants with BMI≥30 and BMI values between 18.5 and 24.9.

You may not qualify if:

• allergic to the drugs used in the study,
• who do not accept regional anesthesia,
• under 150 cm in height,
• who received treatment other than perinatal iron and vitamin drugs,
• smoking or drinking alcohol,
• with a known fetal anomaly,
• with placental disorders such as placenta previa,
• with multiple pregnancy
• have renal or liver disease,
• diagnosed with hypertension or preeclampsia,
• uncooperative and previously treated or currently receiving treatment for a psychiatric disorder
• Mothers who do not want to participate in the study will not be included in the study.

Sponsors & Collaborators

• Ataturk University: lead

Study Sites (1)

Ataturk University

Erzurum, 25100, Turkey (Türkiye)

RECRUITING

Related Publications (2)

• Kumar T, Jha K, Sharan A, Sakshi P, Kumar S, Kumari A. Study of the effect of obesity on QT-interval among adults. J Family Med Prim Care. 2019 May;8(5):1626-1629. doi: 10.4103/jfmpc.jfmpc_168_19.

  PMID: 31198727 BACKGROUND

• Song JH, Yang C, Lee W, Kim H, Kim Y, Kim H. QTc interval prolongation due to spinal anesthesia in patients with and without diabetes: an observational study. BMC Anesthesiol. 2022 May 13;22(1):143. doi: 10.1186/s12871-022-01614-8.

  PMID: 35562669 BACKGROUND

MeSH Terms

Conditions

Agnosia

Condition Hierarchy (Ancestors)

Perceptual Disorders; Neurobehavioral Manifestations; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Mehmet Aksoy

  Ataturk University

  STUDY DIRECTOR

Central Study Contacts

Mehmet Aksoy

CONTACT

+905058193526; drmaksoy@hotmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: July 24, 2023
• First Posted: August 31, 2023
• Study Start: July 24, 2023
• Primary Completion: November 30, 2024
• Study Completion: December 31, 2024
• Last Updated: February 6, 2024

Record last verified: 2024-02

Locations

TU (1)