Study on Changes of Pulse Oximeter Plethysmographic Amplitude Induced by Respiration in Pediatric Patients

Seoul National University

Status: Unknown

Conditions: Children Under General Anesthesia

Treatments: Other: Applying pulse oximeter sensor

Study type: Interventional

Funder types: Other

Identifiers

NCT02940938

H1609-067-791

Details and patient eligibility

About

The purpose of this study is to evaluate the variations of respiratory changes in pulse oximeter plethysmographic amplitude (delta POP) according to different contact forces between finger and sensor of pulse oximeter. During general anesthesia without surgical stimuli, pulse oximeter sensor is applied with serial contact force, from 0 to maximal 1.5N (increased by 0.2N) and POP waveform is obtained for 60 seconds. Delta POP will be calculated and compared.

Enrollment: 35 estimated patients

Sex: All

Ages: 2 to 5 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• children who are aged between 2 and 5 years
• no cardiopulmonary and vascular diseases
• obtained written informed consent from their guardians
• no hemodynamic instability from massive bleeding

Exclusion criteria

• significant cardiopulmonary or vascular disease
• significant hemodynamic instability due to massive bleeding etc.
• cyanotic patients

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

---

35 participants in 1 patient group

Children under general anesthesia

Experimental group

Description:

During general anesthesia without surgical stimuli, pulse oximeter sensor is applied with gradually increased contact force, from 0 to maximal 1.5N (increase by about 0.2N), at an index finger and POP waveform is obtained for 60 seconds at each contact force. Delta POP will be calculated and compared.

Treatment:

Other: Applying pulse oximeter sensor