System and method for detecting worsening of heart failure based on rapid shallow breathing index

US9743889B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• Yi Zhang · Mountain View, US
• Viktoria A. Averina · Shoreview, US
• Kenneth C. Beck · North Ogden, US
• Pramodsingh Hirasingh Thakur · Woodbury, US
• Ramesh Wariar · Tampa, US

Key dates

• Filing date: Aug 4, 2014
• Grant date: Aug 29, 2017
• Expiry date: Sep 1, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/746
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and methods for detecting a worsening of patient's heart failure condition based, at least in part, on an increasing trend in a representative rapid shallow breathing index (RSBI) value over multiple days. The RSBI value may be a minimum RSBI, and more particularly may be a minimum RSBI value determined for an afternoon portion of each of the multiple days. The minimum RSBI value measured during an afternoon portion of the day may be more sensitive to changes in a patient's respiration, particularly when a patient is expected to be more active, and thus, may more readily exhibit an increasing trend when patient's heart failure is in decline.