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Arterial oxygen desaturation during peripheral venous cannulation in children
K K Gombar1, S S Nain, B Singh
1Department of Anaesthesiology, Medical College and Hospital, Rohtak, India.
Insights
Peripheral venous cannulation in children can cause undetected drops in arterial oxygen saturation (SpO2). Continuous pulse oximetry monitoring is recommended during this procedure to ensure patient safety.
Area of Science:
- Pediatric Anesthesiology
- Critical Care Medicine
- Respiratory Physiology
Background:
- Peripheral venous cannulation is a common procedure in pediatric anesthesia.
- Oxygen desaturation can occur during anesthetic procedures, potentially leading to adverse outcomes.
- Limited data exists on oxygen desaturation specifically during peripheral venous cannulation in infants and young children.
Purpose of the Study:
- To investigate the incidence and severity of arterial oxygen saturation (SpO2) desaturation during peripheral venous cannulation in healthy children across different age groups.
- To determine if clinically significant desaturation occurs and to identify risk factors.
Main Methods:
- A prospective study involving 120 healthy children (40 in each of three age groups: 1-4 months, 4-12 months, 12-24 months).
- Patients received oral trimeprazine tartrate premedication.
- Continuous SpO2 monitoring was performed during peripheral venous cannulation before anesthesia induction.
- Maximum SpO2 decrease and duration of SpO2 below 90% were recorded.
Main Results:
- Significant decreases in mean SpO2 were observed across all age groups (P < 0.001), with the youngest group (1-4 months) showing the largest mean decrease (3.2 ± 1.4%).
- Desaturation of ≥4% occurred in 17 children in Group I, 10 in Group II, and 6 in Group III.
- Two children (one in Group I, one in Group II) experienced SpO2 < 90% for 30 and 80 seconds, respectively.
Conclusions:
- Clinically significant, yet often undiagnosed, arterial oxygen desaturation occurs during peripheral venous cannulation in healthy children.
- Continuous SpO2 monitoring using pulse oximetry should be a routine part of peripheral venous cannulation in pediatric patients.
- This monitoring can help detect and manage desaturation events, improving patient safety during anesthesia induction.
Abstract:
Arterial oxygen saturation (SpO2) was measured to determine oxygen desaturation during peripheral venous cannulation prior to induction of anaesthesia in 40 consecutive patients in each of the three age groups; Group I: 1-4 mo, Group II: 4-12 mo, Group III: 12-24 mo. Following premedication with oral trimeprazine tartarate 3 mg.kg-1, one to two hours before operation, baseline SpO2 was noted with child breathing room air. Continuous monitoring during peripheral venous cannulation was done and maximum decrease and duration of SpO2 < 90% was noted. Decreases in mean SpO2, 3.2 +/- 1.4 in Group I, 2.6 +/- 2.0 in Group II and 1.7 +/- 1.9 in Group III, were observed (P < 0.001). Desaturation > or = 4% was noted in 17 patients in Group I, ten patients in Group II and six patients in Group III. Two children, one each in Groups I and II, experienced SpO2 < 90% for 30 sec and 80 sec respectively. We conclude that clinically undiagnosed desaturation occurs during peripheral venous cannulation in healthy children. The authors suggest that continuous monitoring of SpO2 using pulse oximetry should be performed routinely during peripheral venous cannulation.