Effect of Gestational Weight Gain on Spinal Anesthesia in Elective Cesarean Delivery

Elazıg Fethi Sekin Sehir Hastanesi120 enrolled

Overview

This prospective, observational, non-interventional study aims to evaluate the effect of gestational weight gain on regional anesthesia characteristics in pregnant women undergoing elective cesarean delivery. No additional intervention, medication, or procedure beyond routine clinical care will be performed. Participants will be classified according to gestational weight gain categories based on the Institute of Medicine (IOM) 2009 guidelines, and spinal anesthesia block characteristics, hemodynamic responses, and perioperative outcomes will be assessed.

Study Type

OBSERVATIONAL

Enrollment

120

Conditions

Gestational Weight Gain Regional Anesthesia Cesarean Delivery

Interventions

Gestational Weight GainOTHER

Participants will be categorized into three groups according to total gestational weight gain based on pre-pregnancy body mass index and the 2009 Institute of Medicine recommendations: inadequate, adequate, and excessive gestational weight gain. No intervention will be performed regarding gestational weight gain; it will be evaluated as an observational exposure.

Eligibility

Sex: FEMALEMin age: 18 YearsMax age: 45 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Pregnant women aged 18-45 years * Single pregnancy * Planned elective cesarean section * Spinal anesthesia (regional anesthesia technique) * Pre-pregnancy weight information available (maternal health record, e-Nabız or file record) * Recorded pre-delivery weight information * Gestational weight gain (GWG) calculable according to the IOM 2009 classification * ASA I-II pregnant women * Voluntary participation in the study and informed consent Exclusion Criteria: * Pregnant women with preeclampsia, severe preeclampsia, eclampsia, or HELLP syndrome * Pregnant women with a history of gestational diabetes or pregestational diabetes * Multiple pregnancy (twins, triplets, etc.) * Preterm pregnancy (\<37 weeks) * Failure of spinal anesthesia or need for conversion to general anesthesia * Lack of pre-pregnancy weight information or weight gain data during pregnancy * Pregnancies with fetal anomalies * Morbid obesity (BMI ≥ 45 kg/m²)

Outcomes

Primary Outcomes

Incidence of Spinal Anesthesia-Induced Hypotension

Occurrence of hypotension following spinal anesthesia, defined as a decrease in mean arterial pressure of ≥20% from baseline or an absolute mean arterial pressure \<65 mmHg.

Time frame: During cesarean delivery (first 20 minutes after spinal anesthesia)