Critical Care Monitoring

Continuous BP monitoring in acute patients
  • Patients in critical care settings are often unstable and need close monitoring
  • Most of those patients are monitored with an intermittent cuff, which misses critical hypotension events.
  • Studies demonstrated that hypotension contributes to the development of MI (myocardial injury) and AKI (acute kidney injury)
  • Sensifree’s continuous and non-invasive BP monitoring device allows timely
    hypotension identification and early intervention

Patients admitted to hospital’s critical care units – operating rooms, post anesthesia care units and intensive care units, are often unstable and require close vital signs monitoring. Continuous BP monitoring would be highly desired for all these patients, however currently available methods for this limit continuous monitoring to a small percentage of the cases.


A number of large studies have shown that episodes of low blood pressure result in an increased risk of mortality, acute kidney injury (AKI) and myocardial injury (MI), both in the ICU1,2 and during surgical operations3,4,5,6. Risk grows with cumulative time under certain MAP levels, thus continuous monitoring is required to effectively mitigate this risk.


There is a high motivation to extend continuous BP monitoring to larger groups of patients. MI is the leading cause of 30 days post-operative mortality7,8, itself the 3rd leading cause of death in the US9.


Sensifree offers a solution for continuous, non-invasive BP monitoring, based on the ubiquitous fingertip optical sensor, typically used for SpO2 monitoring. This affordable, easy to use solution is a real paradigm shift in BP monitoring, bringing a new standard of care in acute patient management.

  1. Maheshwari et al: The relationship between ICU hypotension and in-hospital mortality and morbidity in septic patients. Intensive Care Med. 2018; 44(6): 857-867.
  2. Yapps et al: Hypotension in ICU Patients Receiving Vasopressor Therapy. Sci Rep. 2017; 7: 8551.
  3. Salmasi V. et al: Relationship between Intraoperative Hypotension, Defined by Either Reduction from Baseline or Absolute Thresholds, and Acute Kidney and Myocardial Injury after Noncardiac Surgery. Anesthesiology 2017; 126:47-65
  4. Walsh M. et al: Relationship between Intraoperative Mean Arterial Pressure and Clinical Outcomes after Noncardiac Surgery. Anesthesiology, V 119 : No 3
  5. Monk TG et al: Association between Intraoperative Hypotension and Hypertension and 30-day Postoperative Mortality in Noncardiac Surgery. Anesthesiology 2015; 123:307-19
  6. Sun LY: Association of Intraoperative Hypotension with Acute Kidney Injury after Elective Noncardiac Surgery. Anesthesiology 2015; 123:515-23
  7. Devereaux PJ et al: Association Between Postoperative Troponin Levels and 30-day Mortality Among Patients Undergoing Noncardiac Surgery. JAMA 2012; 307:2295-304
  8. Devereaux PJ, Sessler DI: Cardiac Complications in Patients Undergoing Major Noncardiac Surgery. N Engl J Med 2015; 373:2258-69
  9. Bartels K. et al: Perioperative Organ Injury. Anesthesiology 2013; 119:1474-89