The Relationship between Body Mass Index and Frontal QRS-T Angle in Pregnant Women Undergoing Cesarean Section with Spinal Anesthesia

• Published in: Medicina (Kaunas, Lithuania) Lithuania), 2024-08, Vol.60 (8), p.1277
• Main Authors: Tercan, Mehmet, Bingol Tanriverdi, Tugba, Komurcu, Nurseda, Esercan, Alev, Kaya, Ahmet, Ozyurt, Erhan, Tanriverdi, Zulkif
• Format: Article
• Language: English
• Subjects: Adult; Anesthesia; Anesthesia, Spinal - methods; Blood pressure; Body Mass Index; Bupivacaine; Cardiac arrhythmia; Cesarean section; Cesarean Section - adverse effects; Cesarean Section - methods; Congenital heart disease; Correlation analysis; Diabetes; Electrocardiography; Electrocardiography - methods; Female; frontal QRS-T angle; Genetic disorders; Heart diseases; Heart rate; Humans; Hypertension; Mortality; myocardial repolarization; Normal distribution; Obesity; Obstetrics; Physiology; Pregnancy; Pregnant women; Statistical analysis; Surgery; Variance analysis; Womens health
• ISSN: 1648-9144; 1010-660X; 1648-9144
• DOI: 10.3390/medicina60081277

: The frontal QRS-T angle is a novel parameter of myocardial repolarization. Weight gain during pregnancy and physiological changes during a cesarian section may affect the frontal QRS-T angle. We aimed to assess the effect of body mass index (BMI) on the frontal QRS-T angle in pregnant women undergoing cesarean section with spinal anesthesia. : This study included 90 pregnant women. BMI was calculated for all pregnant women. The study population was divided into two groups: BMI < 30 (n = 66) and BMI ≥ 30 (n = 24). QT interval measurements and the frontal QRS-T angle were obtained from the report of an electrocardiography machine. : It was found that the pre-operative and post-operative frontal QRS-T angle ( = 0.045 and = 0.007) and QTc interval ( = 0.037 and < 0.001) were higher in pregnant women with a BMI ≥ 30 than in pregnant women with a BMI < 30. In addition, when compared to pre-operative values, the post-operative frontal QRS-T angle (from 24.0 [20.0-41.5] to 34.5 [19.5-50.0], = 0.031) and QTc interval (from 420.6 ± 13.3 to 431.7 ± 18.3, = 0.010) were increased in the BMI ≥ 30 group, whereas no significant post-operative increase was observed in the BMI < 30 group. In correlation analysis, BMI was positively correlated with the frontal QRS-T angle and QTc interval. : The frontal QRS-T angle and QTc interval were importantly increased in pregnant women with a BMI ≥ 30 than in pregnant women with a BMI < 30. Also, after cesarean section operation with spinal anesthesia, the frontal QRS-T angle and QTc were increased significantly in the BMI ≥ 30 group, whereas no significant change was observed in the BMI < 30 group. Therefore, it is suggested to perform close post-operative monitoring in pregnant women with a BMI ≥ 30 undergoing cesarean section with spinal anesthesia.