Maricopa Integrated Health System Installs Masimo Patient SafetyNet™ System for Improved Oversight of General Floor

 Maricopa Integrated Health System Installs Masimo Patient SafetyNet™ System
                   for Improved Oversight of General Floor

Installation Is Part of an Organization-Wide Conversion to Masimo SET® Pulse
Oximetry and rainbow® Pulse CO-Oximetry for Advanced Patient Monitoring

PR Newswire

PHOENIX and IRVINE, Calif., Nov. 15, 2012

PHOENIXand IRVINE, Calif., Nov. 15, 2012 /PRNewswire/ --Maricopa Integrated
Health System, among the most trafficked hospital systems in Arizona with more
than 500 licensed beds, and Masimo (NASDAQ: MASI) today announced that
Maricopa has deployed Masimo Patient SafetyNet™, clinically shown to help
improve patient outcomes and save money.^1

The installation is part of the nationally recognized healthcare
organization's standardization to Masimo SET^® Measure-Through Motion and Low
Perfusion pulse oximetry and rainbow^® SET^® Pulse CO-Oximetry.

Maricopa joins a growing list of leading health systems using Patient
SafetyNet, which can help ensure patient safety by noninvasively and
continuously measuring and tracking their underlying physiological conditions
and detect changes or abnormalities that signal declining health status in
real-time. When changes occur in the measured values, which may indicate
deterioration in the patient's condition, the system automatically sends
wireless alerts directly to clinicians – prompting a potentially lifesaving
response to the patient's bedside.

"Patients and their families can be confident that with the Masimo Patient
SafetyNet system, they are being monitored at the bedside even when clinical
staff is not in the room," said Michael O'Reilly, MD, Masimo's Chief Medical
Officer. "We are honored that Maricopa Integrated Health System has selected
Masimo technology to help protect their patients."

Maricopa patients also will benefit from breakthrough rainbow^® technology
that allows clinicians to measure multiple blood constituents, respiration
rate, and other physiological parameters without invasive blood draws and
time-consuming laboratory analysis. Parameters in use include total hemoglobin
(SpHb^®), oxygen content (SpOC™), carboxyhemoglobin (SpCO^®), methemoglobin
(SpMet^®), and Pleth Variability Index (PVI^®), in addition to the
Measure-Through Motion and Low Perfusion performance of Masimo SET^®
oxyhemoglobin (SpO[2]), perfusion index (PI), and pulse rate (PR). The pulse
oximetry standard-of-care at leading hospitals worldwide, Masimo SET^®
virtually eliminates false alarms^2 and increases a clinician's ability to
detect life-threatening events.^3

Blood transfusions carry risks, including a significant link to mortality,
infection, and adult respiratory distress syndrome.^4 Masimo's SpHb has been
clinically shown to help anesthesiologists reduce the frequency of blood

"I've found total hemoglobin (SpHb) to be particularly useful when I'm in the
OR because it offers a continuous measurement," said William Johnson, MD,
Chairman of the Department of Anesthesiology at Maricopa Medical Center. "In
cases where there's insidious blood loss during some of the longer surgeries,
you can keep track of the trend. And when there's relatively rapid loss, the
Masimo monitor produces a graph to show hemoglobin falling. In either of those
extremes, the ability to track blood loss may make you more inclined not to
give a unit of blood when you can predict hemodynamics. When used properly,
SpHb can reduce the urge to give blood when it's not absolutely necessary,
which can improve patient safety and outcomes."

^1 Taenzer A, Blike G, McGrath S, Pyke J, Herrick M, Renaud C, Morgan J.
"Postoperative Monitoring – The Dartmouth Experience." Anesthesia Patient
Safety Foundation Newsletter Spring-Summer 2012. Available online
^2 Shah N, Ragaswamy H, Govindugari K, Estanol L. "Performance of three
new-generation pulse oximeters during motion and low perfusion in
volunteers."Journal of Clinical Anesthesia. 2012
(10.1016/j.jclinane.2011.10.012) Available onlinehere
^3 Taenzer, Andreas H.; Pyke, Joshua B.; McGrath, Susan P.; Blike, George T.
"Impact of Pulse Oximetry Surveillance on Rescue Events and Intensive Care
Unit Transfers: A Before-and-After Concurrence Study."Anesthesiology,
February 2010, Vol. 112, Issue 2. Available onlinehere
^4 Marik, P. E. and H. L. Corwin (2008). "Efficacy of red blood cell
transfusion in the critically ill: a systematic review of the literature."
Crit Care Med 36(9): 2667-74.
^5 Ehrenfeld JM, Henneman JP, Sandberg WS. "Impact of Continuous and
Noninvasive Hemoglobin Monitoring on Intraoperative Blood Transfusions."
American Society Anesthesiologists. 2010;LB05

About Maricopa Integrated Health System
Maricopa Integrated Health System (MIHS) is the public health care system for
the State of Arizona. MIHS includes Maricopa Medical Center, the Arizona Burn
Center, the Arizona Children's Center, the Arizona Cancer Center, and eleven
Family Health Centers located throughout Maricopa County. MIHS also includes
two behavioral health centers and an attendant care program. For more
information, please visit

About Masimo
Masimo (NASDAQ: MASI) is the global leader in innovative noninvasive
monitoring technologies that significantly improve patient care—helping solve
"unsolvable" problems. In 1995, the company debuted Measure-Through Motion and
Low Perfusion pulse oximetry, known as Masimo SET^®, which virtually
eliminated false alarms and increased pulse oximetry's ability to detect
life-threatening events. More than 100 independent and objective studies have
shown that Masimo SET^® outperforms other pulse oximetry technologies, even
under the most challenging clinical conditions, including patient motion and
low peripheral perfusion. In 2005, Masimo introduced rainbow SET^® Pulse
CO-Oximetry technology, allowing noninvasive and continuous monitoring of
blood constituents that previously required invasive procedures, including
total hemoglobin (SpHb^®), oxygen content (SpOC^TM), carboxyhemoglobin
(SpCO^®), methemoglobin (SpMet^®), and Pleth Variability Index (PVI^®), in
addition to SpO[2], pulse rate, and perfusion index (PI). Additional
information about Masimo and its products may be found at

Forward Looking Statements
This press release includes forward-looking statements as defined in Section
27A of the Securities Act of 1933 and Section 21E of the Securities Exchange
Act of 1934, in connection with the Private Securities Litigation Reform Act
of 1995. These forward-looking statements are based on current expectations
about future events affecting us and are subject to risks and uncertainties,
all of which are difficult to predict and many of which are beyond our control
and could cause our actual results to differ materially and adversely from
those expressed in our forward-looking statements as a result of various risk
factors, including, but not limited to: risks related to our assumptions that
the hospital-wide conversion ensures that all Maricopa Integrated Health
System patients will be cared for using the most technologically and
clinically-advanced noninvasive patient monitoring solutions available; risks
related to our belief that Masimo Patient SafetyNet can help keep patients
safer by noninvasively, continuously measuring and tracking their underlying
physiological condition to help hospitals avoid preventable patient deaths and
injuries associated with failure to rescue events, risks related to our
assumptions of the repeatability of clinical results obtained, and risks
related to the system's ability to significantly decrease traumatic critical
events and costly ICU transfers to help improve patient outcomes and reduce
costs; risks related to our belief that SpHb detects low or falling hemoglobin
levels that could be the result of internal bleeding; as well as other factors
discussed in the "Risk Factors" section of our most recent reports filed with
the Securities and Exchange Commission ("SEC"), which may be obtained for free
at the SEC's website at Although we believe that the expectations
reflected in our forward-looking statements are reasonable, we do not know
whether our expectations will prove correct. All forward-looking statements
included in this press release are expressly qualified in their entirety by
the foregoing cautionary statements. You are cautioned not to place undue
reliance on these forward-looking statements, which speak only as of today's
date. We do not undertake any obligation to update, amend or clarify these
forward-looking statements or the "Risk Factors" contained in our most recent
reports filed with the SEC, whether as a result of new information, future
events or otherwise, except as may be required under the applicable securities

Media Contact:
Mike Drummond
Masimo Corporation
Phone: (949) 297-7434

Masimo, SET, Signal Extraction Technology, Improving Patient Outcome and
Reducing Cost of Care... by Taking Noninvasive Monitoring to New Sites and
Applications, rainbow, SpHb, SpOC, SpCO, SpMet, PVI, rainbow Acoustic
Monitoring, RRa, Radical-7, Rad-87, Rad-57,Rad-8, Rad-5,Pulse CO-Oximetry,
Pulse CO-Oximeter, Adaptive Threshold Alarm, and SEDLine are trademarks or
registered trademarks of Masimo Corporation. The use of the trademarks Patient
SafetyNet and PSN is under license from University HealthSystem Consortium.


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