Post-extubation: quelle technique pour quel patient...

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Post-extubation: quelle technique pour quel patient ? Créteil 24ème Journée d’Actualités en Ventilation Artificielle 2017 Department of Critical Care Medicine and Anesthesiology (DAR B) Saint Eloi University Hospital and Montpellier School of Medicine Clinical and experimental research unit = INSERM U1046 80 Avenue Augustin Fliche; 34295 Montpellier. FRANCE Mail : [email protected] ; Tel : +33 4 67 33 72 71 Samir JABER

Transcript of Post-extubation: quelle technique pour quel patient...

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Post-extubation: quelle

technique pour quel patient ?

Créteil – 24ème Journée d’Actualités en Ventilation Artificielle 2017

Department of Critical Care Medicine and Anesthesiology (DAR B) Saint Eloi University Hospital and Montpellier School of Medicine

Clinical and experimental research unit = INSERM U1046 80 Avenue Augustin Fliche; 34295 Montpellier. FRANCE

Mail : [email protected] ; Tel : +33 4 67 33 72 71

Samir JABER

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Conflict of interest

*Consultants with honorarium

- Dräger

- Xenios

- Fisher-Paykel

- Medtronic

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1. Background : preventive and/or curative

2. Rationale for use high-flow oxygen ; CPAP and NIV

after extubation

Ventilatory Support after extubation to prevent reintubation

3. In non-selected patients

4. In selected post-operative patients

5. Bedside application : main optimal settings ?

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Noninvasive respiratory support during weaning

Pre-Weaning

Weaning from

mechanical ventilation

Extubation Reintubation

Acute

Respiratory

Failure

Facilitative

(NIV)

1

Prophylactic

(NIV, HFNC)

2

Curative

(NIV, HFNC)

3

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Standard-

Oxygen

Spontaneous

Breathing

CPAP (=PEEP=8)

Paw

PEEP= 0

Flow

NIV (PSV+PEEP)

PEEP= +8

High-Flow

Oxygen

Spontaneous

breathing

(Optiflow)

What are the main Ventilatory Support after extubation to prevent reintubation ?

PSV = +7

(PSV+PEEP) = +15

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Ventilatory Support Management after extubation to prevent reintubation

Curative

Prophylactic (preventive)

ARF : yes (Present)

Objectif : to avoid intubation !

ARF : no (not present…at risk!)

Objectif : to avoid the development of ARF

CPAP (1 pressure level)

CPAP (1 pressure level)

NIV (2 pressure levels)

NIV (2 pressure levels)

Grey zone

Optiflow (1 low pressure )

Optiflow (1 low pressure )

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ICM 2016

Rationale for use

High-Flow Oxygen

Therapy to

prevent or treat acute respiratory

failure after extubation

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1. Haute FiO2

2. Pression Positive – PEP (CPAP-like)

3. Qualité de l’humidification de l’oxygène++

4. Meilleur confort

5. Lavage espace mort

6. Diminution du travail respiratoire

7. Autres…..

Principaux effets de « l’optiflow »

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Rationale for use CPAP and NIV (BIPAP)

to prevent or treat acute respiratory failure after extubation

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Mécanisme(s) de

l’insuffisance respiratoire aigüe ?

1

(poumon)

Insuffisance de

l’échangeur gazeux

Hypoxémie isolée Hypercapnie +/- Hypoxémie

(Diaphragme +/- poumon)

2

Insuffisance de

la pompe ventilatoire

Traitement :

Oxygénation

Traitement :

Ventilation

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VNI

Intubation

+

Ventilation invasive CPAP (mask)

Oxygénation Ventilation +/-Oxygénation

Optiflow (haut débit d’oxygène)

O2

lunettes (faible débit < 5 L/min) Ventilation

Invasive (sonde d’intubation)

O2

Masque Haute

Concentration (faible débit > 10 L/min)

Ventilatory Support

after extubation

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1. Background : preventive and/or curative

2. Rationale for use high-flow oxygen ; CPAP and NIV

after extubation

Ventilatory Support after extubation to prevent reintubation

3. In non-selected patients

4. In selected post-operative patients

5. Bedside application : main optimal settings ?

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Facilitative NIV for weaning in COPD patients

mortality

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Optiflow vs Venturi mask after extubation

Inclusion Criteria: mechanical ventilation> 24h, P/F ≤ 300 at the beginning of SBT, successful

SBT (1 hour: PSV 6-8 cmH2O - PEEP 0, or T-piece)

Exclusion Criteria: tracheostomy, anticipated need for NIV post-extubation (prophylactic),

age<18, pregnancy

Randomization: NHF vs Venturi mask oxygen therapy after extubation

Settings: FiO2 set to obtain SpO2 92-98% (88-95% in COPD), gas flow 50 L/min (with NHF)

Measurements (at 1, 3, 6, 12, 24, 36, and 48 hours):

arterial blood gases, respiratory rate, discomfort related to the interface and to dryness symptoms

(patients’s rating on a numerical scale from 0 – min – to 10 – max), incidence of desaturations

and interface’s displacement, need for reintubation or NIV

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Maggiore SM et al. AJRCCM 2014;190:282-288

Optiflow vs Venturi mask after extubation

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The RINO Trial

(ReINtubation rate after

Oxygen therapy)

• Multicenter, randomized, controlled, phase III, open trial

(NCT02107183)

• 500 patients

• Nasal high-flow vs Venturi mask after extubation

• Study hypothesis: using Optiflow for delivering oxygen therapy

after extubation may reduce the extubation failure rate and the

need for reintubation as compared with the Venturi mask

Inclusion : finished 2016 …..

Analysis in progress……..?

Salvatore Maggiore

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Optiflow to prevent reintubation in low risk patients

Hernandez G et al. JAMA 2016;315:1354-61

Primary outcome: reintubation within 72 h

Low risk for post-extubation ARF: • Age <65 years

• APACHEII <12 at extubation

• BMI<30

• Adequate secretions management

• Simple weaning

• 0-1 comorbidity

• No heart failure or COPD

• No airway patency problems

• No prolonged MV

527 patientswith MV>12h:

263 O2 vs. 264 HFNT for 24h (31 L/min)

12%

5%

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Optiflow vs NIV to prevent post-ext. ARF in high risk patiens

Hernandez G et al. JAMA doi:10.1001/jama.2016.14194, published online October 5, 2016

Primary outcome: reintubation within 72 hours

& post-extubation ARF (non-inferiority)

High risk for post-extubation ARF:

• Age >65 years

• APACHEII >12 at extubation

• BMI >30

• Inadequate secretions management

• Difficult or prolonged weaning

• >1 comorbidity

• Heart failure or mod.-sev. COPD

• Airway patency problems

• Prolonged MV

604 patientswith MV>12h:

314 NIV vs. 290 HFNT for 24h (50L/min)

23%

19%

Postextubation ARF with NIV (40% vs. 27%)

Similar hosp. mortality (18% vs. 20%)

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28%

15%

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Prophylactic NIV only in patients at risk

mortality

We suggest that NIV be used to prevent post-

extubation respiratory failure in high-risk patients

post-extubation. (Conditional recommendation, low certainty of evidence)

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Decrease of lung volumes:

VC ; FRC ; VT

Diaphragmatic dysfunction

Warner. Anesthesiology 2000

Jaber Anesthesiology 2011

Post-operative period = Modifications of respiratory function

Atelectasis

Pain

HYPOXIA, PNEUMONIA

Residual effects of anesthesia-

analgesia cough

Fluid overload

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Thoracic Surgery

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21

50

13

38

0

20

40

60

Intubation Mortalité

VNI

(n = 24)

Standard

(n = 24)

* *

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• Multicenter, randomized,

noninferiority trial

• 830 pts after cardiothoracic surgery

• 1. Pts with post-extubation ARF

(curative strategy), or

2. pts at risk for developing ARF

(preventive strategy)

• HFNT (50 L/min) or NIV (i8/e4)

• PRIMARY OUTCOME: treatment

failure (ETI, switch, or stop) within 7

days

Optiflow vs NIV after cardiothoracic surgery

Stéphan F et al. JAMA 2015;313:2331-2339

Similar reintubation rate (13.7% vs

14%)

Post-hoc analysis

Curative strategy: similar treatment failure rate (27% vs 28%)

Preventive strategy: lower treatment failure with optiflow (6% vs 13%)

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1. Background : preventive and/or curative

2. Rationale for use high-flow oxygen ; CPAP and NIV

after extubation

Ventilatory Support after extubation to prevent reintubation

3. In non-selected patients

4. In selected post-operative patients

5. Bedside application : main optimal settings ?

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Abdominal Surgery

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NIV (Bi-PAP)

Intubation

+

Invasive ventilation CPAP (mask)

Oxygenation Oxygenation

+ ventilation

Optiflow (High Flow Oxygen)

O2 canulae (Low flow < 5 L/min)

Invasive

Ventilation (Intubation-tube)

O2

Mask high

Concentration (High flow > 10 L/min)

OPERA study

(ICM 2016 dec)

Squadrone Study

JAMA 2005

NIVAS study

(JAMA 2016 april)

Post-Operative Ventilatory Support

after abdominal surgery (RCT)

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Optiflow after abdominal surgery (High Flow Oxygen)

OPERA study

(ICM 2016 dec)

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To test the hypothesis that direct (preventive)

application of HFNC after elective extubation,

compared with standard oxygen therapy, can

decrease the incidence of hypoxemia

after major abdominal surgery

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Study Outcomes OPERA study

• Primary outcome: Hypoxemia (defined as an

PaO2/FiO2<300) 1 hour after extubation and at

the end of allocated treatment

• Secondary outcomes

- Postoperative pulmonary complications due to any cause

- Need for additional oxygen therapy after day 1

- Reintubation and/or use of curative NIV because of postoperative

respiratory failure

- Postoperative gas exchange after discontinuation of the treatment

- Respiratory comfort

- Unexpected intensive care unit (ICU) admission or readmission

- ICU and hospital length of stays

- In-hospital mortality

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0

25

50

75

100

0 1 2 3 4 5 6 7

Days since extubation

Pa

tie

nts

wit

ho

ut p

os

top

era

tiv

e

pu

lmo

na

ry c

om

pli

ca

tio

ns

(%

)

HFNC oxygen

Usual care

No. at risk

Usual care

HFNC oxygen

therapy

112

108

62

75

52

66

48

55

47

53

45

52

44

51

44

50

Adjusted Hazard ratio 0.81 (95%CI 0.57-1.15)

Patients without any pulmonary complications until day 7

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Before NIV After NIV

NIV effects (30 min - PSV+15; PEEP+5) on pulmonary volumes (recruitement - atelectasis) in a patient with ARDS at D3 peritonitis surgery

Jaber . Anesthesiology 2010

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- Three-dimensional reconstruction

and volumetry of CT data.

- Specifically designed software

according to methods previously

described (semi-automatic).

- Time acquisition of the whole

lung: 3 - 4 s.

Volumetric analysis of the CT-scans

Before NIV After NIV Jaber . Anesthesiology 2010

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Volumetric analysis of the CT-scans

-900/ -1000

-600/ -900

-200/-600

0/-200

-1000 / -900 : Hyperinflated

-900 / -500 : Normally aerated

-500 / -100 : Poorly aerated

-100 / +100: Non aerated

Before NIV After NIV

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Impact of PEEP on :

1. Lung

2. Upper Airway

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Post-extubation NIV in Acute Respiratory Failure (ARF)

Positive Negative

- Reintubation - ICU and Hospital stay - Nosocomial Infections

Improve outcome ?

- Reintubation delay - Morbidity ? - mortality ?

Worsen outcome ?

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Post-extubation NIV in Acute Respiratory Failure (ARF)

Positive

- Reintubation - ICU and Hospital stay - Nosocomial Infections

Improve outcome ?

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JAMA 2005

Control

CPAP

• N=209 postoperative patients with postoperative hypoxemia

(= PaO2/FiO2<300)

• CPAP 7.5 cmH2O for 6 hours

« Early » application of CPAP may decrease the incidence of endotracheal intubation and other

severe complications in patients who develop hypoxemia after elective major abdominal surgery.

(10%)

(1%)

CPAP Preventive

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Post-extubation NIV in Acute Respiratory Failure (ARF)

Negative

- Reintubation delay - Morbidity ? - mortality ?

Worsen outcome ?

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p<0.05

0

10

20

30

40

50

Intubation (%) mortalité réa (%) Délai de

réintubation (h)

VNI

(n=114)

Standard

(n=107)

NS

p<0.05

Mortality (%) Reintubation delay (h)

p<0.05

In non selected

mixed patients

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NIV to treat post-extubation ARF in non selected patients

mortality

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Post-extubation NIV in Acute Respiratory Failure (ARF)

Positive Negative

- Reintubation - ICU and Hospital stay - Nosocomial Infections

Improve outcome ?

- Reintubation delay - Morbidity ? - mortality ?

Worsen outcome ?

curative NIV on outcome in patients who developed ARF in postoperative period after

abdominal surgery

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Cu

mu

lati

ve In

cid

en

ce o

f In

tub

ati

on

P=0.027 by log-rank test

Jaber et al., JAMA 2016; 315:1345-1353.

Oxygen: 46%

NIV: 33%

293 patients

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P=0.145 by log-rank test

22 vs 15 %

(p= 0.148)

D-90

Mortality (D90)

MORTALITY

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1. Background : preventive and/or curative

2. Rationale for use high-flow oxygen ; CPAP and NIV

after extubation

Ventilatory Support after extubation to prevent reintubation

3. In non-selected patients

4. In selected post-operative patients

5. Bedside application : main optimal settings ?

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Pressure (Paw)

Time

2. Slope

3. Pressure Support level

4. Expiratory Trigger (cyclage I/E)

1. Inspiratory trigger

5. PEEP

More sensitive without auto-triggering (-1 to – 2l/min or -1 à -2 cmH2O)

Mild to max

5 < PSV < 15 cmH2O

Cycling flow : 40-60% Cycling time : 1,0 < Ti max < 1,2 s

Auto-track = automatic

5 < PEEP < 10 cmH2O

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OK STOP

NIV ?

Clinical and gas exchange

improvement

NO Clinical and gas

exchange

improvement

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Post-extubation:

quelle technique pour

quel patient

?

Take Home Message

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Ventilatory Support Management after extubation to prevent reintubation

Curative

Optiflow Optiflow NIV NIV

Prophylactic

1) low-risk pts,

2) moderately

hypoxemic pts

3) postoperative pts at

risk (cardiac and

thoracic surgery)

1) alternative to NIV

in cardio-thoracic pts

2) high-risk ICU pts

1) high-risk pts 1) postoperative

pts (thoracic

and abdominal

surgery)

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1. NIV (BIPAP) requires training and motivation of all the

medical teams (surgeons and others) and paramedical teams (nurses,kine, physiotherapists…)

2. CPAP more easy to use and could be first-line therapy to prevent and/or treat “hyopxemia”

3. Optiflow could be proposed - As first-line therapy to prevent and/or treat “hyopxemia”

- As an alternative to CPAP/BIPAP in selected patients

- Studies are needed ?

Take Home Message (1/2)

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- Post-operative ARF = always eliminate a surgical complication

- Optiflow and/or NIV should not delay "the time of reintubation"

Take Home Message (2/2)