Published April 30, 2024 | Version http://impactfactor.org/PDF/IJTPR/14/IJTPR,Vol14,Issue4,Article1.pdf
Journal article Open

A Study to Determine the Efficacy of 0.3M Sodium Citrate as an Antacid Prophylaxis against Aspiration Pneumonitis in Obstetric Patients Undergoing Elective Caesarean Section under General Anesthesia

  • 1. Associate Professor, Department of Anesthesiology, Government Medical College, Kadapa
  • 2. Assistant Professor, Department of Obstetrics & Gynecology, Government Medical College, Kadapa
  • 3. Assistant Professor, Department of Anesthesiology, Sri Venkateswara Medical College, Tirupati

Description

Background: Aspiration pneumonitis is a syndrome resulting from the ingestion of gastric contents. The incidence in obstetric anesthesia has fallen, largely due to improved anesthetic techniques and the increased use of regional anesthesia at caesarean section. However, aspiration pneumonitis is still a cause of maternal morbidity and mortality, and it is important to use effective prophylaxis, 0.3M sodium citrate has been shown to elevate gastric pH when given as a single dose prior to induction and thereby minimizing the risk of aspiration. Aims & Objectives: aim of this study was to determine the effectiveness of 0.3M  sodium citrate, a non-particulate antacid, in neutralizing secreted gastric acid as prevention of aspiration pneumonia. To assess the ph of the gastric aspirate after induction and at the time of extubation in the study and control groups. To assess the change in gastric ph before and after giving 0.3M sodium citrate. Materials and Methods: 50 patients selected and evaluated were randomized by simple random sampling into two groups of 25 patients each. Group A-25 received 30 mL of test solution A. Group B-25 received 30 mL of Control Solution B. Both solutions were stored in identical amber bottles. 25 patients who received 30 mL of 0.3M sodium citrate were categorized into group A or study group. The remaining 25 patients who received 30 ml of distilled water were categorized into group B or control group. Conclusion: We conclude that the non-particulate antacid 0.3M sodium citrate, given orally about 20 min before induction of anesthesia, is an effective and safe antacid for prophylaxis against aspiration pneumonitis in all elective obstetric surgeries without producing any side effects.

Abstract (English)

Background: Aspiration pneumonitis is a syndrome resulting from the ingestion of gastric contents. The incidence in obstetric anesthesia has fallen, largely due to improved anesthetic techniques and the increased use of regional anesthesia at caesarean section. However, aspiration pneumonitis is still a cause of maternal morbidity and mortality, and it is important to use effective prophylaxis, 0.3M sodium citrate has been shown to elevate gastric pH when given as a single dose prior to induction and thereby minimizing the risk of aspiration. Aims & Objectives: aim of this study was to determine the effectiveness of 0.3M  sodium citrate, a non-particulate antacid, in neutralizing secreted gastric acid as prevention of aspiration pneumonia. To assess the ph of the gastric aspirate after induction and at the time of extubation in the study and control groups. To assess the change in gastric ph before and after giving 0.3M sodium citrate. Materials and Methods: 50 patients selected and evaluated were randomized by simple random sampling into two groups of 25 patients each. Group A-25 received 30 mL of test solution A. Group B-25 received 30 mL of Control Solution B. Both solutions were stored in identical amber bottles. 25 patients who received 30 mL of 0.3M sodium citrate were categorized into group A or study group. The remaining 25 patients who received 30 ml of distilled water were categorized into group B or control group. Conclusion: We conclude that the non-particulate antacid 0.3M sodium citrate, given orally about 20 min before induction of anesthesia, is an effective and safe antacid for prophylaxis against aspiration pneumonitis in all elective obstetric surgeries without producing any side effects.

Files

IJTPR,Vol14,Issue4,Article1.pdf

Files (349.6 kB)

Name Size Download all
md5:b03a1184e91fbcc97d1026e27c283d23
349.6 kB Preview Download

Additional details

Dates

Accepted
2024-03-26

References

  • 1. Textbook of anaesthesiology-Aitkenhead 4th ed 2. Ng A, Smith G: Gastroesophageal reflux and aspiration of gastric contents in anesthetic practice. Anesth Analg 2001; 93:494-513 3. Gibbs CP, Modell JH. Pulmonary aspiration of gastric contents: pathophysiology, prevention, and management. 1994:1437-64 4. Sodium citrate pretreatment in elective cesarean section patients- dewan dm, floydh m, thistle wood j m, bogard td , spielman fj 5. Effect of single dose oral ranitidine and sodium citrate on gastric pH during &after general anesthesia, C J A 1995/42:5/ 382-6 6. Sellick BA: Cricoid pressure to control regurgitation of stomach contents during induction of anaesthesia. Lancet 1961; 2: 404 7. Benumofs Airway Management- 2nd ed 8. Report by the ASA Task Force on Preoperative Fasting. Anesthesiology 1999. 9. Puig I, Calzado S, Suárez D, Sánchez-Delgado J, López S, Calvet X. Meta- analysis: comparative efficacy of H2-receptor antagonists and proton pump inhibitors for reducing aspiration risk during anaesthesia depending on the administration route and schedule. Pharmacol Res. 2012 Apr;65(4):480- 90 10. Lim SK, Elegbe EO. The use of single dose of sodium citrate as a prophylaxis against acid aspiration syndrome in obstetric patients undergoing caesarean section. Med J Malaysia. 1991 Dec; 46(4):349-55. 11. Salik I, Doherty TM. Mendelson Syndrome. 2023 Jun 12. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan 12. Roberts RB, Shirley MA: Reducing the risk of acid aspiration during cesarean section. Anesth Analg 1974; 53:859-868 13. Warner MA, Warner ME, Weber JG. Clinical significance of pulmonary aspirationduring the perioperative period. Anesthesiology. 1993 Jan;78(1):56-62