Blood Product Total - Cryoprecipitate

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Description

This phenotype returns the total amount of cryoprecipitate administered per case in both milliliters and units.

Limitation

Blood products can be charted in units or milliliters in any given case. All cryoprecipitate products are totaled and reported in units and milliliters. Concepts of 'units' of blood product are ambiguous in pediatric populations and may refer to split units. For this reason, no conversions are performed when age is less than 8 years. Data which appears to be documented in units below this should be handled on a project specific basis.

Source data must be charted in units, units/hr, ml or ml/hr.
Administration start time must be between anesthesia start and anesthesia end.
Only looks in specified MPOG Concept IDs.
Conversion from Units to ml is based on a fixed conversion factor - 100ml

Data quality is limited to individual site documentation accuracy, completeness, and variable mapping, which is performed by each site, independently. MPOG, as the coordinating center, reviews data quality at each data upload and monthly via Data Diagnostics and Case Validation tools. This review, while thorough, may not contain all data elements relevant to this phenotype and thus should be carefully reviewed by the user.

Value Type

Enumeration

Value	Value Code	Definition

Return Columns

Name	Data Type

Granularity

Logic

Input MPOG Concept IDs:

10495 CRYOPRECIPITATE

Each case will return four results for this phenotype:

- Volume in Units

- Volume in Milliliters

- Source documentation type (numeric code to indicate how the original values were reported to MPOG as units, milliliters or both)

- Source documentation description (actual description of how the original values were reported to MPOG, i.e. units, milliliters, or both)

Step 1: Determine if the case has the cryoprecipitate concept listed above and with administration start time(s) between anesthesia start and anesthesia end.

a) If none, return:

1) Volume in units: 0

2) Volume in milliliters: 0

3) Source documentation type: 0

4) Source documentation Description: “No Cryo Documented in Case”

b) If the cryoprecipitate concept is identified, continue to step 2.

Step 2: Convert any time based units (units/hr or ml/hr) to full non-time based units (units or ml) + round

Step 3: Address any 5 or 10 pack charting ambiguity. For values charted in units:

5 = 1 Unit
10 = 1 Unit
15 = 3 Units
20 = 2 Units
25 = 5 Units
30 = 3 Units

Step 4: Generate case totals + indicator flags:

Step 4a: If charting is exclusively in ml’s:

Sum all volumes to generate a ml value – return “Volume in ml”
Return “Primary Documentation Type” = 1
Return “Documentation Descriptor” = “Cryo Documented in mls”

If patient age >= 8 yrs:

Divide ml value by 100, round to whole number – return “Volume in Units”

Else age < 8 yrs

Set volume in units to Null.

Step 4b: If charting is exclusively in Units:
If patient age >= 8 yrs:

Sum all volumes to generate a unit value – return “Volume in unit”
Multiply unit value by 100 – return “Volume in ml”
Return “Primary Documentation Type” = 2
Return “Documentation Descriptor” = “Cryo Documented in Units”

Else age < 8 yrs:

Set Volume in ml + Volume in Units to Null
Return “Primary Documentation Type” = 9
Return “Documentation Descriptor” = “Unable to Derive Data – Patient Age”

Step 4c: If charting is both in Units + mls
If patient age >= 8 yrs:

Sum all volumes in units to generate a raw unit value
Sum all volumes in ml to generate raw ml value
Divide volume in ml’s by 100, round, add to raw unit value.
Return calculated unit value in “Value in Units”
Multiply volume in units’s by 100, round, add to raw ml value.
Return calculated unit value in “Value in ml”
Return “Primary Documentation Type” = 3
Return “Documentation Descriptor” = “Cryo Documented in Both Units and mls”

Else Age < 8 yrs

Set Volume in ml + Volume in Units to Null
Return “Primary Documentation Type” = 9
Return “Documentation Descriptor” = “Unable to Derive Data – Patient Age”

Step 5: If unit value > 30

Set Volume in ml + Volume in Units to Null
Return “Primary Documentation Type” = 8
Return “Documentation Descriptor” = “Unable to Derive Data – Extremely High Charted Values”