Total Haemoglobin (SpHb®)

Limitations of Traditional Methods Alone

Limitations of Traditional Methods Alone


Without SpHb, clinicians are often limited to invasive blood samples, which provide intermittent and delayed laboratory haemoglobin results

Value of SpHb Monitoring

Value of SpHb Monitoring


SpHb can be used in conjunction with traditional laboratory methods to obtain real-time visibility to changes, or lack of changes, in haemoglobin between invasive blood samples

Masimo - SpHb - Value of SpHb Monitoring Graph

SpHb trend monitoring may provide additional insight between invasive blood samples when:

  • The SpHb trend is stable and the clinician may otherwise think haemoglobin is dropping
  • The SpHb trend is rising and the clinician may otherwise think haemoglobin is not rising fast enough
  • The SpHb trend is dropping and the clinician may otherwise think haemoglobin is stable

Clinical Case

Clinical Case

Masimo - SpHb - Clinical Case Graph

SpHb was retrospectively obtained for the surgical case shown below, in which clinicians could not assess the haemoglobin trend between invasive blood samples during the procedure1

SpHb Utility

SpHb Utility


Studies have shown that SpHb may help clinicians reduce blood transfusions in both low and high blood loss surgeries2,3

A randomised trial of 327 patients undergoing elective orthopaedic surgery, conducted at Massachusetts General Hospital (MGH), found that the use of continuous, noninvasive haemoglobin monitoring reduced the rate of transfusions when compared to standard care without continuous, noninvasive haemoglobin monitoring2

% of Patients Receiving RBC Transfusion2

Masimo - % of Patients Receiving RBC Transfusion

A comparative study of 237 hip surgery patients with and without continuous SpHb monitoring demonstrated that real-time SpHb monitoring led to a financial savings of €20.83 per patient, amounting to an estimated savings of €1.736M nationally3

Savings Per Patient in Euros

Masimo - Savings Per Patient in Euro

Clinical decisions regarding red blood cell transfusions should be based on the clinician’s judgment considering among other factors: patient condition, continuous SpHb monitoring, and laboratory diagnostic tests using blood samples.

SpHb Supports Clinicians in Improving Patient Outcomes

SpHb Supports Clinicians in Improving Patient Outcomes


A single-center quality program involving 18,716 patients, conducted in Limoges, France, demonstrated that monitoring with SpHb and PVi integrated in a vascular filling algorithm was associated with earlier transfusion and reduced 30- and 90-day mortality by 33% and 29%, respectively on a whole hospital scale4

Kaplan–Meier curves estimates of survival at 90 days
with the severity of surgery as covariable

SpHb Monitoring Across the Continuum of Care

SpHb Monitoring Across the Continuum of Care


Monitoring haemoglobin continuously and noninvasively through different care areas

Masimo - SpHb - Continuum of Care
Masimo - SpHb - Continuum of Care
Masimo - SpHb - Continuum of Care
Masimo - SpHb - rainbow SET Technology Platform

Upgradable rainbow SET™ Technology Platform


Masimo rainbow SET is a noninvasive monitoring platform featuring Masimo SET® Measure-through Motion and Low Perfusion™ pulse oximetry with the option to measure multiple additional parameters.


  1. 1.

    Peiris P. et al. Proceeding for the Society for the Advancement of Blood Medicine 2010 Annual Meeting. Abs 4091.

  2. 2.

    Ehrenfeld et al. J Blood Disorders Transf. 2014. 5:9.

  3. 3.

    Ribed-Sánchez B, et al. Sensors (Basel). 2018 Apr 27;18(5). pii: E1367.

  4. 4.

    Cros et al. J of Clinical Monitoring and Computing. Aug 2019.


Masimo - Video, Improve Outcomes with Continuous Total Hemoglobin (SpHb®)


Masimo - Thumbnail of SpHb Studies

Follow the link for available SpHb studies.

Masimo - Thumbnail of  Noninvasive and Continuous SpHb
Follow the link to receive more information about Noninvasive and Continuous SpHb.
Masimo - Noninvasive and Continuous Hemoglobin Whitepaper


Masimo - Noninvasive and Continuous Haemoglobin (SpHb) Monitoring
Masimo - Brochure Perioperative Care Solutions
Masimo - Product Information, RD rainbow SET Sensors

Product Information

Masimo - Thumbnail of SpHb Rev O

Product Information

SABM SpHb Toolkit's Flyer


SpHb monitoring is not intended to replace laboratory blood testing. Blood samples should be analysed by laboratory instruments prior to clinical decision making.

For professional use. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.