Ebook Principles and practice of mechanical ventilation (3/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Principles and practice of mechanical ventilation (3/E): Part 2
Ebook Principles and practice of mechanical ventilation (3/E): Part 2
PHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECH Ebook Principles and practice of mechanical ventilation (3/E): Part 2HANICALVENTILATION ON FEEDBACK SYSTEMSChemical FeedbackResponse of Respiratory Motor Output to Chemical StimuliOperation of Chemical FeedbackNeuromechanical FeedbackNeuromechanical InhibitionBehavioral FeedbackINTERACTIVE EFFECTS OFPATIENT RELATED FACTORS ANDVENTILATOR ON CONTROL OF BREATHINGMechani Ebook Principles and practice of mechanical ventilation (3/E): Part 2cs of Respiratory SystemCharacteristics of Muscle Pressure WaveformFUTURECONCLUSIONThe main reasons for instituting mechanical ventilation are to decrEbook Principles and practice of mechanical ventilation (3/E): Part 2
ease the work of breathing, support gas exchange, and buy time for other interventions to reverse the cause of respiratory failure.1 Mechanical ventilPHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECH Ebook Principles and practice of mechanical ventilation (3/E): Part 2ely.1 In patients without respiratory efforts, the respiratory system represents a passive structure, and thus the ventilator is the only system that controls breathing. During assisted modes of ventilator support, the patients system of control of breathing is under the influence of the ventilator Ebook Principles and practice of mechanical ventilation (3/E): Part 2pump.2"’ In the latter instance, ventilatory output is the final expression of the interaction between the ventilator and the patients system of contrEbook Principles and practice of mechanical ventilation (3/E): Part 2
ol of breathing. Thus, physicians who deal with ventilated patients should know the effects of mechanical ventilation on control of breathing, as wellPHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECH Ebook Principles and practice of mechanical ventilation (3/E): Part 2OGYThe respiratory control system consists of a motor arm, which executes the act of breathing, a control center located in the medulla, and a number of mechanisms that convey information to the control center.'-* Based on information, the control center activates spinal motor neurons thatsubserve t Ebook Principles and practice of mechanical ventilation (3/E): Part 2he respiratory muscles (inspiratory and expiratory); the intensity and rate of activity vary substantially between breaths and between individuals. ThEbook Principles and practice of mechanical ventilation (3/E): Part 2
e activity of spinal motor neurons is conveyed, via peripheral nerves, to respiratory muscles, which contract and generate pressure (Pmus). According PHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECH Ebook Principles and practice of mechanical ventilation (3/E): Part 2(inertia is assumed to be negligible) as follows:Pmus(r) = Rrs X V(r) + Ers X A Vịt) (1) where AV(0 is instantaneous volume relative to passive functional residual capacity and V(t) is instantaneous flow. Equation (1) determines the volume-time profile and. depending on the frequency of respiratory Ebook Principles and practice of mechanical ventilation (3/E): Part 2muscle activation. ventilation. Volume-time profile affects Pinus via neuromechanical feedback; inputs generated from other sources (cortical inputs)Ebook Principles and practice of mechanical ventilation (3/E): Part 2
may modify the function of control center. Ventilation, gas-exchange properties of the lung, and cardiac function determine arterial blood gases, termPHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECH Ebook Principles and practice of mechanical ventilation (3/E): Part 2nd central chemoreceptors (chemical feedback). This system can be influenced at any level by diseases or therapeutic interventions.During mechanical ventilation, the pressure provided by the ventilator (Paw) is incorporated into the system.’ Thus, the total pressure applied to respiratory system at8 Ebook Principles and practice of mechanical ventilation (3/E): Part 205806 Part IX Physiologic Effect of Mechanical VentilationVentilator factorsĩr/ỊỊỊỊertng 1Conlro/ fViinitWcsCycling off)Patient factorsHS mechanicsPmưEbook Principles and practice of mechanical ventilation (3/E): Part 2
s waveformResponse of Pmus to ventilator-delivered breath> Pmus(i) + Paw(0 = V(f) - Hrs + Ú V(0 • ErsVolume time profilePHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECHPHYSIOLOGIC EFFECT OF MECHANICAL VENTILATIONEFFECTS OF MECHANICAL VENTILATION ON CONTROL OF BREATHINGDimitris Geo rgopou I OSPHYSIOLOGYEFFECTS OF MECHGọi ngay
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