archetype (adl_version=1.4; uid=92cdf944-0002-4faf-837d-8fa5b6b7a3f9)
	openEHR-EHR-CLUSTER.sade.v0

concept
	[at0000]	-- Sade Classification
language
	original_language = <[ISO_639-1::en]>
description
	original_author = <
		["name"] = <"Ian McNicoll">
		["organisation"] = <"Ocean Informatics, UK">
		["email"] = <"ian.mcnicoll@oceaninformatics.com">
		["date"] = <"2012-09-07">
	>
	details = <
		["en"] = <
			language = <[ISO_639-1::en]>
			purpose = <"To record the grading of tympanic membrane pars tensa retraction based on the classification by Sade.">
			use = <"Use to record the grading of tympanic membrane retraction, particularly by specialist physicians. 

Designed to be optionally nested within the CLUSTER.exam_tympanic_membrane archetype to provide additional detail on tympanic membrane retraction, if it is useful within a given clinical scenario.

This archetype extends the Sade Classification to allow recording of 'No visible retraction' where applicable.
Sade Stage 5 (spontaneous perforation) is described in some documentation but is not described in the original paper and appears not to be in common usage.">
			keywords = <"retraction", "atelectasis", "tympanic", "membrane", "drum", "pars tensa">
			misuse = <"">
			copyright = <"© openEHR Foundation">
		>
	>
	lifecycle_state = <"in_development">
	other_contributors = <"Heather Leslie, Ocean Informatics, Australia", ...>
	other_details = <
		["custodian_organisation"] = <"openEHR Foundation">
		["references"] = <"Derived from: Sade classification, Draft Archetype [Internet]. Digital Health Agency, Australian Digital Health Agency Clinical Knowledge Manager. No longer available.
Personal communication with clinical domain experts.

Sadé J, Berco E. Atelectasis and secretory otitis media. Ann. Otol. Rhinol. Laryngol. 1976 Apr;85(2 Suppl 25 Pt 2):6

Lancaster J, Srinivasan V. Management of tympanic membrane retraction pockets. Australian Journal of Otolaryngology 2002;5(1):17–20.">
		["original_namespace"] = <"org.openehr">
		["original_publisher"] = <"openEHR Foundation">
		["custodian_namespace"] = <"org.openehr">
		["MD5-CAM-1.0.1"] = <"47E9553AAAE9E71CBFECF41402E17256">
		["build_uid"] = <"b87219de-00f6-46a4-b6e6-4af0cf04bf5a">
		["revision"] = <"0.0.1-alpha">
	>

definition
	CLUSTER[at0000] matches {	-- Sade Classification
		items cardinality matches {1..*; unordered} matches {
			ELEMENT[at0001] occurrences matches {0..1} matches {	-- Sade Classification
				value matches {
					0|[local::at0003], 	-- No visible retraction
					1|[local::at0004], 	-- Stage 1 :  Mild retraction
					2|[local::at0005], 	-- Stage 2 : Retraction onto incudostapedial joint
					3|[local::at0006], 	-- Stage 3 :  Retraction onto promontory
					4|[local::at0007], 	-- Stage 4 : Adhesion of pars tensa to medial wall
					5|[local::at0008]  	-- Stage 5 : Spontaneous perforation with otorrhea and polyp formation
				}
			}
		}
	}



ontology
	term_definitions = <
		["en"] = <
			items = <
				["at0000"] = <
					text = <"Sade Classification">
					description = <"Grading of the degree of tympanic membrane pars tensa retraction / atelectasis.">
				>
				["at0001"] = <
					text = <"Sade Classification">
					description = <"Grading of the degree of tympanic membrane pars tensa retraction / atelectasis based on the Sade Classification.">
				>
				["at0003"] = <
					text = <"No visible retraction">
					description = <"The tympanic membrane pars tensa is not visibly retracted.">
				>
				["at0004"] = <
					text = <"Stage 1 :  Mild retraction">
					description = <"The tympanic membrane pars tensa is mildly retracted.">
				>
				["at0005"] = <
					text = <"Stage 2 : Retraction onto incudostapedial joint">
					description = <"The tympanic membrane pars tensa is retracted onto the incudostapedial joint.">
				>
				["at0006"] = <
					text = <"Stage 3 :  Retraction onto promontory">
					description = <"The tympanic membrane pars tensa is retracted onto the promontary.">
				>
				["at0007"] = <
					text = <"Stage 4 : Adhesion of pars tensa to medial wall">
					description = <"The tympanic membrane pars tensa is adherent to the medial wall.">
				>
				["at0008"] = <
					text = <"Stage 5 : Spontaneous perforation with otorrhea and polyp formation">
					description = <"The tympanic membrane is spontaneously perforated with evidence of otorrhea and polyp formation.">
				>
			>
		>
	>