TIMI flow grade 2: Difference between revisions

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{{SI}}
__NOTOC__
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{{Coronary angiography2}}
{{CMG}}
{{CMG}}
{{SK}} TIMI 2, TIMI 2 flow, TIMI 2 flow grade, TFG 2, TFG2


==Overview==
==Overview==
Thrombolysis In Myocardial Infarction (TIMI) grade 2 flow is a scenario in which dye travels slowly down a coronary artery.
TIMI Grade 2 Flow is defined as partial perfusion. Contrast material passes across the obstruction and opacifies the coronary bed distal to the obstruction. However, the rate of entry of contrast material into the vessel distal to the obstruction or its rate of clearance from the distal bed (or both) are perceptibly slower than its flow into or clearance from comparable areas not perfused by the previously occluded vessel (i.e. opposite coronary artery or the coronary bed proximal to the obstruction).<ref name="Gibson"> Gibson, CM; Ryan, K; Sparano, A; Rizzo, M; Moynihan, J; Kelley, M; Marble, SJ; Dodge, JT; Antman, EM. Methodologic drift in the assessment of TIMI grade 3 flow and its implications with respect to the reporting of angiographic trial results. Am Heart J. 1999;137:1179–1184. PMID 10347349</ref> <ref name="Gibson2">Gibson CM, Cannon CP, Daley WL, Dodge JT Jr, Alexander B Jr, Marble SJ, McCabe CH, Raymond L, Fortin T, Poole WK, Braunwald E. TIMI frame count: a quantitative method of assessing coronary artery flow. Circulation. 1996 Mar 1;93(5):879-88. PMID 8598078</ref> <ref name="Gibson3">Gibson CM, Murphy S, Menown IB, Sequeira RF, Greene R, Van de Werf F, Schweiger MJ, Ghali M, Frey MJ, Ryan KA, Marble SJ, Giugliano RP, Antman EM, Cannon CP, Braunwald E. Determinants of coronary blood flow after thrombolytic administration. TIMI Study Group. Thrombolysis in Myocardial Infarction. J Am Coll Cardiol. 1999 Nov 1;34(5):1403-12. PMID 10551685</ref>
 
==Definition==
Partial perfusion. Contrast material passes across the obstruction and opacifies the coronary bed distal to the obstruction. However, the rate of entry of contrast material into the vessel distal to the obstruction or its rate of clearance from the distal bed (or both) are perceptibly slower than its flow into or clearance from comparable areas not perfused by the previously occluded vessel (i.e. opposite coronary artery or the coronary bed proximal to the obstruction).<ref name="Gibson"> Gibson, CM; Ryan, K; Sparano, A; Rizzo, M; Moynihan, J; Kelley, M; Marble, SJ; Dodge, JT; Antman, EM. Methodologic drift in the assessment of TIMI grade 3 flow and its implications with respect to the reporting of angiographic trial results. Am Heart J. 1999;137:1179–1184. PMID 10347349</ref> <ref name="Gibson2">Gibson CM, Cannon CP, Daley WL, Dodge JT Jr, Alexander B Jr, Marble SJ, McCabe CH, Raymond L, Fortin T, Poole WK, Braunwald E. TIMI frame count: a quantitative method of assessing coronary artery flow. Circulation. 1996 Mar 1;93(5):879-88. PMID 8598078</ref> <ref name="Gibson3">Gibson CM, Murphy S, Menown IB, Sequeira RF, Greene R, Van de Werf F, Schweiger MJ, Ghali M, Frey MJ, Ryan KA, Marble SJ, Giugliano RP, Antman EM, Cannon CP, Braunwald E. Determinants of coronary blood flow after thrombolytic administration. TIMI Study Group. Thrombolysis in Myocardial Infarction. J Am Coll Cardiol. 1999 Nov 1;34(5):1403-12. PMID 10551685</ref>


'''This category is subdivided into''':
'''This category is subdivided into''':
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* [http://www.wikidoc.org/images/archive/b/b2/20080125205849%21LAD_2.swf TIMI Flow Grade 2 - Left Anterior Descending Artery]
* [http://www.wikidoc.org/images/archive/b/b2/20080125205849%21LAD_2.swf TIMI Flow Grade 2 - Left Anterior Descending Artery]


* [http://www.wikidoc.org/images/3/33/2.5TFG.swf TIMI Flow Grade 2.5 - Right Coronary Artery]
==Additional Examples==
Click '''[[TIMI flow grade 2 case studies|here]]''' for other examples of TIMI flow grade 2.


==References==
==References==
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{{Coronary Angiography}}
{{Coronary Angiography}}
{{Electrocardiography}}
{{Circulatory system pathology}}


[[Category:Angiographic Definitions]]
[[Category:Angiographic Definitions]]

Latest revision as of 15:36, 3 May 2014

Coronary Angiography

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: TIMI 2, TIMI 2 flow, TIMI 2 flow grade, TFG 2, TFG2

Overview

TIMI Grade 2 Flow is defined as partial perfusion. Contrast material passes across the obstruction and opacifies the coronary bed distal to the obstruction. However, the rate of entry of contrast material into the vessel distal to the obstruction or its rate of clearance from the distal bed (or both) are perceptibly slower than its flow into or clearance from comparable areas not perfused by the previously occluded vessel (i.e. opposite coronary artery or the coronary bed proximal to the obstruction).[1] [2] [3]

This category is subdivided into:

  • 2.0: TIMI 2 slow flow, dye markedly delayed in opacifying distal vasculature.
  • 2.5: TIMI 2 fast flow, dye minimally delayed in opacifying distal vasculature.

Examples

Additional Examples

Click here for other examples of TIMI flow grade 2.

References

  1. Gibson, CM; Ryan, K; Sparano, A; Rizzo, M; Moynihan, J; Kelley, M; Marble, SJ; Dodge, JT; Antman, EM. Methodologic drift in the assessment of TIMI grade 3 flow and its implications with respect to the reporting of angiographic trial results. Am Heart J. 1999;137:1179–1184. PMID 10347349
  2. Gibson CM, Cannon CP, Daley WL, Dodge JT Jr, Alexander B Jr, Marble SJ, McCabe CH, Raymond L, Fortin T, Poole WK, Braunwald E. TIMI frame count: a quantitative method of assessing coronary artery flow. Circulation. 1996 Mar 1;93(5):879-88. PMID 8598078
  3. Gibson CM, Murphy S, Menown IB, Sequeira RF, Greene R, Van de Werf F, Schweiger MJ, Ghali M, Frey MJ, Ryan KA, Marble SJ, Giugliano RP, Antman EM, Cannon CP, Braunwald E. Determinants of coronary blood flow after thrombolytic administration. TIMI Study Group. Thrombolysis in Myocardial Infarction. J Am Coll Cardiol. 1999 Nov 1;34(5):1403-12. PMID 10551685


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