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ICU REACH
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Effects of Changing Contractility, Arterial Elastance, and Preload on LV Pressure-volume loop
In this video, we delve into the intricate dynamics of the left ventricular (LV) pressure-volume (PV) loop and explore how changes in contractility, arterial elastance, and preload impact cardiac function. Understanding these parameters is crucial for clinicians and students of cardiovascular physiology, as they provide valuable insights into the heart's performance under various physiological and pathological conditions.
Key Topics Covered:
Overview of the LV Pressure-Volume Loop
Definition and Significance of Contractility, Arterial Elastance, and Preload
Impact of Increased and Decreased Contractility on the PV Loop
Effects of Changes in Arterial Elastance on Cardiac Function
How Variations ...
Key Topics Covered:
Overview of the LV Pressure-Volume Loop
Definition and Significance of Contractility, Arterial Elastance, and Preload
Impact of Increased and Decreased Contractility on the PV Loop
Effects of Changes in Arterial Elastance on Cardiac Function
How Variations ...
Просмотров: 56
Видео
Stroke Volume and Pressure-volume Boxes
Просмотров 16019 часов назад
In this video, we’ll delve into the intricacies of stroke volume and the use of pressure-volume (PV) boxes to simplify our understanding of cardiac function. Stroke volume is the amount of blood pumped by the left ventricle with each heartbeat, calculated by subtracting the end-systolic volume from the end-diastolic volume. We’ll explore the PV loop, a graphical representation of the changes in...
Understanding the Effects of Preload on Arterial Elastance in the LV Pressure-Volume Loop
Просмотров 18619 часов назад
In this video, we dive deep into the crucial cardiovascular concepts of preload and arterial elastance and their impact on the left ventricular (LV) pressure-volume loop. You will learn about the fundamentals of the LV pressure-volume loop, the definition and significance of preload, how increased preload affects the LV pressure-volume loop, what arterial elastance (Ea) is and how it is calcula...
Understanding Arterial Elastance from the Left Ventricular Pressure-Volume Loop
Просмотров 137День назад
Arterial elastance (Ea) is a key parameter that helps us understand the afterload faced by the heart, and it plays a crucial role in assessing cardiovascular health. We'll explain the relationship between arterial elastance and the left ventricular pressure-volume loop, using clear visuals and easy-to-follow explanations. You'll learn how the formula ΔP = Q x R (change in pressure equals blood ...
Contractility and Stroke Volume on Left Ventricular Pressure Volume Loop
Просмотров 81День назад
In this video, we explore the concept of cardiac contractility and the End-Systolic Pressure-Volume Relationship (ESPVR). Contractility refers to the heart muscle's intrinsic ability to contract and is influenced by various factors including the autonomic nervous system, hormones, and drugs. The ESPVR is a crucial graphical representation that shows the relationship between end-systolic pressur...
What is Afterload?
Просмотров 18614 дней назад
This video provides an in-depth yet accessible explanation of the concept of afterload in cardiac physiology. Starting with a basic overview of the pressure-volume loop, the video visually illustrates key components like the end-diastolic and end-systolic pressure-volume relationships. It then delves into the definition of afterload as left ventricular wall stress during ejection, highlighting ...
What is the End-diastolic Pressure Volume Relationship (EDPVR)
Просмотров 20214 дней назад
the end-diastolic pressure-volume curve helps us understand the relationship between blood volume and pressure in the left ventricle at the end of diastole. By halting the heart, adjusting the volume, measuring the pressure, and plotting these points, we can generate a curve that provides valuable insights into heart function.
What is the End-Systolic Pressure-Volume Relationship (ESPVR)?
Просмотров 214Месяц назад
The End-Systolic Pressure-Volume Relationship (ESPVR) is a crucial concept in understanding cardiac function. It represents the relationship between the pressure in the left ventricle and the volume of blood in it when the heart is fully contracted, which is the end of the systolic phase of the cardiac cycle
Left Ventricular Pressure Volume Loop
Просмотров 254Месяц назад
The volume-pressure loop of the heart, also known as the left ventricular pressure-volume loop, is a graphical representation of the relationship between the pressure and volume in the left ventricle during one cardiac cycle. It is divided into several distinct phases that illustrate the mechanical function of the heart. The first phase, isovolumetric contraction, begins with the closure of the...
What is Preload?
Просмотров 376Месяц назад
A debate exists over whether end-diastolic pressure or end-diastolic volume should be used as the indicator of preload. While both are critical factors, relying solely on pressure or volume does not provide a complete picture. Pressure can vary significantly with changes in ventricular compliance, while volume alone does not account for the actual stress experienced by the ventricular wall. In ...
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Просмотров 308Месяц назад
مقاربة باثوفيزيولوجية للصدمة وانخفاض الضغط الشرياني
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Просмотров 5215 месяцев назад
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Sleep Disruption & Promotion in the ICU
Просмотров 3736 месяцев назад
Sleep Disruption & Promotion in the ICU
Early Progressive Mobility in the ICU
Просмотров 3616 месяцев назад
Early Progressive Mobility in the ICU
ICU Delirium Definition, Etiology, and Outcomes
Просмотров 9927 месяцев назад
ICU Delirium Definition, Etiology, and Outcomes
Non-pharmacological Interventions in the Management of Pain in the ICU
Просмотров 5467 месяцев назад
Non-pharmacological Interventions in the Management of Pain in the ICU
Pharmacologic Management of Pain in the ICU
Просмотров 4767 месяцев назад
Pharmacologic Management of Pain in the ICU
Richmond Agitation-Sedation Scale (RASS)
Просмотров 4,3 тыс.7 месяцев назад
Richmond Agitation-Sedation Scale (RASS)
Current Insights in ICU Nutrition
Просмотров 1,5 тыс.10 месяцев назад
Current Insights in ICU Nutrition
Flow Waveform Assessment on Mechanical Ventilation
Просмотров 1,2 тыс.11 месяцев назад
Flow Waveform Assessment on Mechanical Ventilation
Fluid Stewardship in Sepsis De escalation and De resuscitation
Просмотров 1,8 тыс.11 месяцев назад
Fluid Stewardship in Sepsis De escalation and De resuscitation
Prolonged Beta-lactam Antibiotic Infusion in the Treatment of Sepsis in ICU
Просмотров 83711 месяцев назад
Prolonged Beta-lactam Antibiotic Infusion in the Treatment of Sepsis in ICU
De-resuscitation & De-treatment in Sepsis and Septic Shock
Просмотров 1,1 тыс.11 месяцев назад
De-resuscitation & De-treatment in Sepsis and Septic Shock
Nicotine replacement therapy in ICU, what does the evidence say?
Просмотров 572Год назад
Nicotine replacement therapy in ICU, what does the evidence say?
Dr.mazen thank you so much ❤❤❤
My pleasure
الله يرحمه ويغفر له
جزاك الله خيرا د مازن . جعله الله في ميزان حسناتك . واحدة من أروع المحاضرات
شكرا لك
دكتور بعد ازن حضرتك المشاكل دي بسبب اي ساعدني ارجوك انا بموت
APRV should be banned. It is not effective and in the cases in which the outcome is positive, an equal or superior outcome could be achieved with another mode.
Can be used ABG guided rususciation fluid,?
You can use the A-v CO2 gap to guide resuscitation in addition to lactic acid
يا دكتور انا مصابة بالصم منذ 6 اشهر هل انا مصابة بكورونا ارجو الاجابة بالتعليقات من فضلك😭😭😭😭😭😭😭😭😭😭😭🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺
Thanks for the tip. 👍
انا عند تعب المزمن مند عملت تلقيح فايزر 2022ماعندي طاقة احس بتعب شديد وعدم القدرة على لوقوف ولا فعل اي شي هل من احد اتعفا؟؟؟؟
ارجوك دكتور انا لم اصب الحمد لله بالكورونا بس داءما راسي من الخلف يولمني وادوخ ازاةركبت بالسيارة وفكي يولمني عمري 32
و هل لكل هذا علاج
Excellent talk
ارجو الدعاء لوالدتي من هذا المرض وجزاكم الله خيرا
انا اخدت جرعتين سينوفارم ولى عندي شحا في القرجوطة
Thanks for your explanation I have questions sines the patient can breath in top of the p high dose he exhale if yes what’s the benefit of the rales then ?
Yes he exhales, which rate do you mean?
ربي يرحمها ويرحمنا
Never understood this logic of pressure volume loop .and never done it clinical..?
It is really very simple if you follow the phased carefully
👍
A very comprehensive lecture! Thank you for sharing your knowledge
فقدت الشم وبعدها التذوق ذهبت لدكتور اعطاني علاج ادويه رجع كلشي تمام بعد ما خلص الدواء ارجعت من الصفر ..
Thank you so much for the presentation! helpful for me 29/5/2024
I'm sorry, do you mean compliance, rather than elastance? Elastance is the inverse of compliance.
It is the same whether you use compliance or elastance, as you mentioned compliance is the reverse of elastance or it is volume divided by pressure. Whereas elastance is pressure divided by volume. The idea is on the PV curve, the most compliant area (or the lowest elastance) is the middle part of the curve.
بظبططط 😢
مشكور thanks
كل الشكر والتقدير لجهودكم المبذولة في هذه المحاضرة.
دكتور.اختي.عندها.كرسطرول.لعملة.للقاح.مرتين..ماتت
Great video!
Thanks!
Thanks a lot for clarifying complicated concept, it helps my practice and my patients care…would like to see more videos 😊
Thanks
اسأل الله العظيم رب العرش العظيم ان يشفي كل مريض يتألم اللهم امين يارب العالمين
جزاك الله خيرا د مازن و نفع بك💐
Thanks
يا دكتور اعطيني جرعة الاستعمال للطفيليات ارجوك رد عليا للفركمتين
توفي ابي اثر هذا المرض عنده شهرين متوفى رحمه الله واسكنه فسيح جناته ياريت لو الاطباء فهمونا عن هذا المرض بطريقة صحيحة عوض الله ابي بالجنة ان شاء الله
زاوى لالز وتتة توووةلو ةة ؤىىة ى. ة. ىةىلى ة راى. ىةة ةاااى. ة ب. ى. ىليا ىةىي. ، رر ؤؤة ر ةل
يعطيك العافية حكيم محاضرة اكثر من رائعة ❤
22:11 What did Khaled mean when he asked why we use SIMV +PS? Isn't it the best mode for ARDS patients in intensive care?
No SIMV PS mode is not the best and I do not see a reason why you should use it, better to do PRVC on all patients and when ready to wean you do SBT
طولو بالكم ليه مستعجلين انا صار لي ١٥ مابشم
دعواتكوم لامي بالرحمة توفيت بهذا المرض
فيديوامطمن صحيح مدتة اسبوعين جزاك الله خيريادكتور
يا دكتور صارلي شهر تقريباً فاقد حاسة الشم والتذوق والله نفسيتي تعبت
طريقة فاشله جدا صارلي شهر احاول اشم واكل ثوم وليمون وبصل ومافي فائده لسه ما اشم
انا فقدت حاسة الشم بسبب السائل الأنفية
الرضع اقيائهم بلغم مع الشرقه المنكرره هو يعتبر سعال لانهم لا يعرفون ان يسعلو مثل الكبار مع خنفرة او احتقان وربما اسهال
انا صرلي ٦ شهور فاقدة الحاستين ولهلأ مارجعت😭
اهلا دكتور كيف حالك
لي مادارش اللقاح يدير جام🇩🇿
مستحيل ما تقول
Thanks alot , it was really helpful
د. أ
كل ده من التطعيم
ولكن دكتور انت ما عندك علم هما شو مخلين باللقاح ولهذا لا تدافع عن اللقاح