Tracking the probability for imminent hypoglycemia in diabetes from self-monitoring blood glucose (SMBG) data
First Claim
1. A method for maintaining the health of a diabetic patient by preventing the occurrence of a hypoglycemic event in said patient, comprising:
- obtaining self monitoring blood glucose (SMBG) readings from the patient;
measuring glycemic variability of said patient and low blood glucose (BG) of said patient based on said obtained SMBG readings;
creating in a processor a bivariate distribution that maps probability for an upcoming hypoglycemic event in said patient jointly to values of said measured glycemic variability and said measured low blood glucose (BG);
optimizing in said processor the bivariate distribution to achieve prediction of a predetermined percentage of hypoglycemic events below a predetermined BG value occurring in said patient within a predetermined future time period;
tracking in said processor the optimized distribution over time using routine SMBG readings from the patient;
outputting via said processor a message to said patient when said optimized distribution indicates a certain probability for the occurrence of a hypoglycemic event in said patient within said predetermined future time period, based on SMBG data obtained from said patient; and
causing said patient to take a physical action in response to receiving said message to prevent a hypoglycemic event from occurring in said patient.
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Accused Products
Abstract
A method, system and related computer program product for tracking the probability of hypoglycemia from routine self-monitoring of blood glucose (SMBG) data in patients with diabetes. A specific bivariate probability distribution of low BG events based jointly on the Low BG Index (LBGI) and the Average Daily Risk Range (ADRR) is used to predict hypoglycemia probability of occurrence from inputted SMBG data. The SMBG data is retrieved from a series of SMBG data of a patient available from the patient'"'"'s glucose meter and allows tracking of the probability for future hypoglycemia over a predetermined duration, e.g., a 24 or 48 hour period. The tracking includes presentation of visual and/or numerical output, as we construction of hypoglycemia risk trajectories that would enable warning messages for crossing of predefined thresholds, such as 50% likelihood for upcoming hypoglycemia below 50 mg/dl.
16 Citations
43 Claims
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1. A method for maintaining the health of a diabetic patient by preventing the occurrence of a hypoglycemic event in said patient, comprising:
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obtaining self monitoring blood glucose (SMBG) readings from the patient; measuring glycemic variability of said patient and low blood glucose (BG) of said patient based on said obtained SMBG readings; creating in a processor a bivariate distribution that maps probability for an upcoming hypoglycemic event in said patient jointly to values of said measured glycemic variability and said measured low blood glucose (BG); optimizing in said processor the bivariate distribution to achieve prediction of a predetermined percentage of hypoglycemic events below a predetermined BG value occurring in said patient within a predetermined future time period; tracking in said processor the optimized distribution over time using routine SMBG readings from the patient; outputting via said processor a message to said patient when said optimized distribution indicates a certain probability for the occurrence of a hypoglycemic event in said patient within said predetermined future time period, based on SMBG data obtained from said patient; and causing said patient to take a physical action in response to receiving said message to prevent a hypoglycemic event from occurring in said patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 37, 38)
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19. A system for maintaining the health of a diabetic patient by preventing the occurrence of a hypoglycemic event in said patient, comprising:
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a processor configured to obtain self monitoring blood glucose (SMBG) readings from the patient and to measure glycemic variability of said patient and low blood glucose (BG) of said patient based on said obtained SMBG readings; a storage medium; a bivariate distribution stored in said storage medium, which maps probability for an upcoming hypoglycemic event in said patient jointly to values of said measured glycemic variability and said measured low blood glucose (BG), wherein said bivariate distribution allows said processor to predict a predetermined percentage of hypoglycemic events below a predetermined BG value occurring in said patient within a predetermined future time period; said processor being configured to optimize said bivariate distribution and to track the optimized distribution over time using routine SMBG readings received from the patient; said processor being configured to output a message to said patient when said optimized distribution indicates a certain probability for the occurrence of a hypoglycemic event in said patient within said predetermined future time period, based on SMBG data obtained from said patient; and in response to receiving said message said patient is caused to take a physical action to prevent a hypoglycemic event from occurring in said patient. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 39, 40)
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41. A computer program product comprising a non-transitory computer-readable storage medium containing computer-executable instructions for maintaining the health of a diabetic patient by preventing the occurrence of a hypoglycemic event in said patient, said instructions causing a computer to:
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obtain self monitoring blood glucose (SMBG) readings from the patient; measure glycemic variability of said patient and low blood glucose (BG) of said patient based on said obtained SMBG readings; create a bivariate distribution in said storage medium, which maps probability for an upcoming hypoglycemic event in said patient jointly to values of said measured glycemic variability and said measured low blood glucose (BG), wherein said bivariate distribution allows prediction of a predetermined percentage of hypoglycemic events below a predetermined BG value occurring within a predetermined future time period; optimize said bivariate distribution and track the optimized distribution over time using routine SMBG readings received from the patient; output a message to said patient when said optimized distribution indicates a certain probability for the occurrence of a hypoglycemic event in said patient within said predetermined future time period, based on SMBG data obtained from said patient; and cause said patient in response to receiving said message to take a physical action to prevent a hypoglycemic event from occurring in said patient. - View Dependent Claims (42, 43)
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Specification