More than tracheomalacia, Biphasic morphology is seen in unilateral main stem bronchial obstruction. This is due to the asynchronous filling and emptying of the air in the lungs. The lung with the main stem bronchial obstruction fills and empties slowly than the normal lung. So the initial inspiratory and expiratory phase represents the normal lung, so it is of normal shape. But the latter part the inspiratory and expiratory curve is like a straight line due to the flow resistance in the obstructed main stem bronchus. So the biphasic morphology is present in both inspiratory and expiratory phase. Coming to Biphasic morphology in Tracheobronchomalacia, it is present only in the expiratory phase.
Best explanation on flow volume loops I’ve ever seen! Thank you
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This was AMAZING. You really explained it like no one else. Amazing. Much much appreciated
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Thank you so much!!! This was an excellent presentation, very clear and easy to understand. Looking forward to seeing more!
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Excellent presentation. One of the simplest and best explanations of flow vol loops I've heard. Thank you!
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Excellent explanation! Much appreciation from the Netherlands:)
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So thankful for your informative lecture
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One of the best videos I ever seen
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This is 5th video I am watching on this topic and finally I understand this topic. Thanks for better presentation
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Thank you for the video!! I'm curious if the inspiration curve is considered effort dependent or effort independent. Does anyone know?
you're welcome. Inspiration is effort dependent
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Explained wonderfully in short time
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Thank you! That was really concise, clear and well explained!
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Explained in very simple way thanks 👍🏼
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Thanks for creating this to help us understanding better
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Simple, sharp, crisp and precise 💖
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Excellent explanation sir thankyou
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Very helpful. Thankyou
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Details 💯
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Thank you
I read that in tracheomalacia, there can be "biphasic morphology" of flow loop. Could you please explain what it means?
More than tracheomalacia, Biphasic morphology is seen in unilateral main stem bronchial obstruction. This is due to the asynchronous filling and emptying of the air in the lungs. The lung with the main stem bronchial obstruction fills and empties slowly than the normal lung. So the initial inspiratory and expiratory phase represents the normal lung, so it is of normal shape. But the latter part the inspiratory and expiratory curve is like a straight line due to the flow resistance in the obstructed main stem bronchus. So the biphasic morphology is present in both inspiratory and expiratory phase. Coming to Biphasic morphology in Tracheobronchomalacia, it is present only in the expiratory phase.
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