Use of monitor to transfuse blood in patients undergoing spine surgeries. A comparison with laboratory tests.

Use of non-invasive hemoglobin estimation for blood transfusion in spine surgeries; a comparison with conventional hemoglobin estimation method: A pilot study

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2019/05/019084

Enrollment

Registered

2019-05-13

Start date

Unknown

Completion date

Unknown

Last updated

2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: G988- Other disorders of nervous system

Interventions

Intervention1: noninvasive monitor: The non-invasive hemoglobin monitoring [SpHbÂ®] probe will be applied to the patient immediately after the induction of anesthesia, but before the start of surgery

Eligibility

Inclusion criteria

Inclusion criteria: undergoing spine instrumentation surgery under general anesthesia.

Exclusion criteria

Exclusion criteria: patients with a history of previous intracranial surgery, any history of peripheral vascular disease, hemoglobinopathy, sickle cell disease or non-consenting patients and PI <1.4

Design outcomes

Primary

Measure	Time frame
1. We aimed to compare invasive hemoglobin (Hb) values versus non-invasive Hb values at the trigger point for blood transfusion [9 gm%]. Timepoint: The non-invasive hemoglobin monitoring [SpHbÂ®] probe will be applied to the patient immediately after the induction of anesthesia, but before the start of surgery and approximately every 30 minutes thereafter till end of surgery. Intraoperatively at any time point if the non-invasive Hb value reaches the trigger point for blood transfusion i.e 9 gm%, arterial blood sample will be collected for Hb estimation using arterial blood gas (ABG) machine (aHb).	—

Measure

Time frame

1. We aimed to compare invasive hemoglobin (Hb) values versus non-invasive Hb values at the trigger point for blood transfusion [9 gm%]. Timepoint: The non-invasive hemoglobin monitoring [SpHbÂ®] probe will be applied to the patient immediately after the induction of anesthesia, but before the start of surgery and approximately every 30 minutes thereafter till end of surgery. Intraoperatively at any time point if the non-invasive Hb value reaches the trigger point for blood transfusion i.e 9 gm%, arterial blood sample will be collected for Hb estimation using arterial blood gas (ABG) machine (aHb).

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Secondary

Measure	Time frame
2. We will also assess the cerebral oxygenation at the above time point using near infrared spectroscopy [NIRS]Timepoint: Intraoperatively at any time point if the non-invasive Hb value reaches the trigger point for blood transfusion i.e 9 gm%, arterial blood sample will be collected for Hb estimation using arterial blood gas (ABG) machine (aHb). Simultaneously, the cerebral oxygenation value will be recorded at same time point.	—

Measure

Time frame

2. We will also assess the cerebral oxygenation at the above time point using near infrared spectroscopy [NIRS]Timepoint: Intraoperatively at any time point if the non-invasive Hb value reaches the trigger point for blood transfusion i.e 9 gm%, arterial blood sample will be collected for Hb estimation using arterial blood gas (ABG) machine (aHb). Simultaneously, the cerebral oxygenation value will be recorded at same time point.

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Countries

India

Contacts

Public Contactindu kapoor

AIIMS, NEW DELHI

dr.indu.me@gmail.com9013439134

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026