Management of AKI in Paediatrics · 2018. 5. 14. · Fluid overload in children Increase...
Transcript of Management of AKI in Paediatrics · 2018. 5. 14. · Fluid overload in children Increase...
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Management of AKI in Paediatrics
Mignon McCulloch Associate Professor
Consultant PICU/Paediatric Nephrologist
Red Cross Children’s Hospital (RXH)
University of Cape Town
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Prevention is Better than Cure
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What if fluid was considered as an IVI drug?
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Joe Carcillo – pCRRT 2017 Orlando
Package of care including examining patients carefully in Emergency room
Reduce AKI – individualise care
Crystalloid type – N/S vs Balanced solutions
Hypotension vs Antibiotics
SVO2 vs USCOM
Peripheral inotropes
Intra-abdominal pressure via urinary catheter
Renal blood flow scan
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Fluid overload in children
Increase ventilation days
Increase ICU stay
Increase mortality Arikan Ped Crit Care Med 2012;13:253
Valentine Crit Care Med 2012 40:2883
Sinitsky Ped Crit Care Med 16:205
Bhaskar Intensive Care Medicine 2015 41: 1446
Paridon Critical Care 2015 19: 293
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Role of Fluid after admission
FO >20% @ time of CRRT initiation
%FO = (Fluid In – Fluid Out) x 100%
(PICU Admission weight)
Goldstein et al(2005). KI 67:653-658
But what happens before?
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Fluid
Balance
Time
Maintenance/
Homeostasis
Removal/
Recovery
R
E
S
U
C
I
T
A
T
I
O
N
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Stuart Goldstein
AKI UO less than 0.5ml/kg/hr x 6hours
AWARE – 5000 paeds cases in 31 PICU 2014 NEJM 2017
Severe AKI – UO & Creatinine(KDIGO 2012)
Odds ratio 1.77 increased ratio of death associated with morbidity and mortality
Attention at R of RIFLE
Biomarkers – use clinically
Renal Angina
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Renal Angina Index
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Incidence
Assessment of Worldwide AKI, Renal Angina and Epidemiology in Children: The International AWARE Study
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Variable Count
Patients, n 5237
Male gender, n (%) 2878 (55.0)
Race, n (%)
Caucasian 3120 (59.5)
African American 883 (16.9)
Native American 61 (1.2)
Asian 480 (9.2)
Hawaiian/Pacific Islander 27 (0.5)
Other or Unknown 702 (13.4)
Age in months, Median (IQR) 66.0 (18.8 – 151.1)
Primary ICU Diagnoses Group, n (%)
Shock
Cardiovascular
Respiratory
Surgical/Trauma
Central nervous system
Pain management or sedation
1244 (23.8)
210 (4.0)
1986 (37.9)
1597 (30.5)
958 (18.3)
182 (3.5)
History of Transplant, n (% of total) 219 (4.2)
Bivariate analysis Multivariable logistic regression
model
Survivors
N= 4815
Non-Survivors
N= 169
p Odds Ratio1 95% Confidence
Interval
Primary PICU diagnosis group, n (%)
Shock
Cardiovascular
Respiratory
Surgical/Trauma
CNS/Neurology
Pain/Sedation
1101 (22.9)
178 (3.7)
1814 (37.7)
1481 (30.8)
873 (18.1)
164 (3.4)
92 (54.4)
28 (16.6)
87 (51.5)
12 (7.1)
46 (27.2)
2 (1.1)
<0.001
<0.001
0.003
<0.001
0.003
0.056
1.93
2.71
1.27
0.42
2.42
0.33
1.31 – 2.84
1.50 – 4.89
0.86 – 1.86
0.22 – 0.80
1.60 – 3.68
0.07 – 1.54
History of Transplantation, n (%) 195 (4.1) 15 (8.9) 0.007 0.86 0.43 – 1.70
Maximum AKI status, n (%)
0
1
2
3
Severe AKI (Stage 2 or 3)
3337 (74.0)
691 (15.3)
279 (6.2)
203 (4.5)
481 (10.7)
85 (49.1)
27 (15.6)
15 (8.67)
46 (26.6)
61 (36.4)
<0.001
<0.001
-
-
-
-
1.77
-
-
-
-
1.17 – 2.68
Ventricular assist device, n (%) 7 (0.15) 0 (0) 0.49 - -
ECMO, n (%) 20 (0.4) 6 (3.6) 0.002 1.12 0.37 – 3.39
RRT, n (%) 49 (1.0) 24 (14.2) <0.001 3.38 1.74 – 6.54
Mechanical ventilation, n (%) 1456 (30.3) 125 (70.6) <0.001 3.02 2.16 – 4.76
Vasoactive support, n (%) 618 (12.8) 108 (63.9) <0.001 4.67 3.18 - 6.87
Kaddourah A, Basu RK, Bagshaw SM, Goldstein SL:
“Epidemiology of Acute Kidney Injury in Critically Ill Children and Young Adults”
www.nejm.org
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Where We Want to Go
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AWAKEN FIGURE 2. Schematic representation of GA distribution and AKI incidence by GA
32
Jennifer G. Jetton; Louis J. Boohaker,; Sidharth K. Sethi…............... David Askenazi for NKC. Accepted Lancet Child & Adolescent Health
24 units 4 countries Australia, Canada, India, US Jan-March 2014
AKI 585/2162 27%
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AWAKEN Neonatal AKI 585/2162 27%
Prevalence Mortality AKI versus no AKI
VLBW 18% 40%
55% vs 5% 14% vs 4%
ELBW 13% 70% vs 22%
Sick near term/term
18% 22% vs 0%
Sepsis 26% 70% vs 25%
Asphyxiated 38% 73% vs 20%
ECMO 71%
David Askenazi for NKC.
Accepted Lancet Child & Adolescent Health 2017
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Red Cross Children’s Hospital(RXH)
University of Cape Town Experience
Increasing incidence in association with multi-organ failure in paediatric ICU’s
22 Beds – 29 initially – 39 May 2018
1 400 admissions per year Acute medical cases 600/yr
Cardiac cases 300/yr
Burns 50/yr
Head injuries 50/yr
Other Rest
Mortality 5% predicted 10-12%
Dialysis 3.5%
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Causes of Acute Kidney Injury
Sepsis 46(22%)
Post-cardiac surgery 36(17%)
Undiagnosed chronic renal disease
21(10%)
Gastroenteritis 19(9%)
Haemolytic uraemic syndrome
19(9%)
Necrotizing enterocolitis 15(7%)
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Causes of Acute Kidney Injury
Leukaemia/Lymphoma 14(6%)
Myocarditis 11(5%)
Rapidly progressive nephritis 10(5%)
Trauma/Burns 8(4%)
Toxin ingestion 7(3%)
Kwashiorkor** 6(3%)
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Diuretics
Controversial long term outcomes but easier to manage patient with some urine output than anuria
Furosemide – bolus or infusion
Aminophylin 1mg/kg/dose 6hrly
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AKI: Treatment Modality
Selection
Ashita Tolwani, M.D., M.Sc. University of Alabama at Birmingham
Critical Care Nephrology – Vicenza
June 2015
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RRT MODALITIES
Intermittent
IHD PIRRT
Continuous
CRRT
SCUF
CVVH
CVVHD
CVVHDF
PD
Ashita Tolwani,
Which mode of RRT is
‘best’ in the ICU?
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New Technology
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Infants and young children
Preferred choices for continuous renal replacement therapy (CRRT)
Peritoneal dialysis…but not always possible
CVVH…Not always possible either!
Unavailable in low resource settings due to lack of size-appropriate lines and filters
Perceived as not possible due to lack of experience
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CVVHD/F in Children
Gaining more experience in Acute HD
Better machine suited for children
Lines/Circuits /Filters – paeds and neonatal with low priming volumes
Haemocatheters difficult to source
Acute range to 6.5FR(5Fr Arrow)
Internal jugular vessels
Acute – metabolic conditions
Smallest weight 1.7kg
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Complications
Line access
Frequent problems were blood pressure related
Blood primes
Clotting circuits
Heparin bolus/infusion
Fluid boluses
Skilled and motivated personnel
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Controversies
Citrate/Heparin/Prostacyclin
Timing of starting…and ending CRRT
Dialysis dose?
Survival and Outcomes?
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CRRT Machines: Modern Generation
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Pediatric patients in the range of
2-10 kgs
(approximate BSA of 0.15–0.5 m2)
DESIGNED BY THE INTERNATIONAL RENAL RESEARCH INSTITUTE
OF VICENZA, DIRECTED BY CLAUDIO RONCO (2011)
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Peristaltic pumps with cradle
movements instead of the rotors
to reduce risk of hemolisys
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International Pediatric Dialysis Survey
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650 Ped Nephs internet survey Dialysis modalities
34% response rate
PD available in all centres
CRRT available
60% Developed & 33.3% Developing
Infants preferred modality
Developed HD 72% CRRT 24%
Developing 68.5%
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RRT MODALITIES
Intermittent
IHD PIRRT
Continuous
CRRT
SCUF
CVVH
CVVHD
CVVHDF
PD
Ashita Tolwani,
Which mode of RRT is
‘best’ in the ICU?
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Use of Peritoneal Dialysis in AKI:
A Systematic Review
Ashita Tolwani
24 studies identified
19/24 from Asia, Africa, and South America
13 studies with PD only
11 studies with PD and EBP
7 observational
4 randomized
Chionh CY et al. Clin J Am Soc Nephrol 8: 1649–1660, 2013
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PD Techniques Manual - PD paeds – acute PD for
children
Automated machines
Home choice/Sleep safe
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Practicalities of PD
Prescription Start off with 10-20ml/kg fluid per exchange Adapted to ventilatory requirements
Dialysis fluid Lactate buffered – Dianeal or
Bicarbonate based - Bicavera Weak 1.5%/Medium 2.5%/Strong 4.25% ‘Home-made solutions’ – Ringers and 50%
Dextrose
Cycles: Fill/Dwell/Drain 10/30-90/20mins
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PD Fluid Prescription Adjustments
Fluid overload – increase sugar solution Solute removal eg. K+ - increase frequency of cycle
(Ensure K+ free solution)
Additives
Heparin 500-1000u/litre Antibiotics ?
Neonates /liver failure– better to use bicarbonate
based solution Lactate based fluids may confuse lactate reading
on gas
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New Generation Cook Catheters
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Kimal ‘Peel-away’ Tenckhoff
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Quick and Easy
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Automated Dialysis Home choice machine
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Manual Dialysis with Fluid Warmer
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IPNA/ISN Training for Africa Nigeria
Nigeria Benin Uganda
Kenya
Ghana
Nigeria
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Kenya
Sudan
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Challenges on Return
Poor Staffing 100%
Lack of Facilities & Equipment 86%
Radiology – Ultrasound only 86%
Support from Home Institutions 71%
Histology support 57%
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Scanned by CamScanner
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• Prospective, Observational • 41 countries • 2014 • >350 children
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The Saving Young
Lives project
A partnership to deliver care of Acute Kidney
Injury in low resource settings
Have we succeeded?
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Current SYL Sites
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Training Teams of People
• Including Nurses – ‘1 Doctor and 1-2 Nurses’
• Total 148 trained Acute Renal Skills
– 47 Teams of Doctors and Nurses
– All parts of Africa – including some French areas
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Surgical Support
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Learning is fun !
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Doctor Nurse Teams
Bloemfontein, SA
Ghana
Malawi + Zambia
Kenya Nigeria
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Adult Team
‘BRETT BELLY’
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Equipment
• PD catheters – bedside insertion
– Infants – problem – Cook multipurpose catheters
– Older children and Adults – PD catheters with Seldinger insertion kits – Mexican, Kimal, Covidien, Arrow
• Fluid
– “Home-made”
– Ringers Lactate and 50% Dextrose
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Training and Education
SYL faculty teaching catheter insertion methods to a group of 40 delegates from West Africa, Yaoundé, March 2017
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Advocacy
SYL delegation meeting with the Cameroon Minister of Health to advocate for free treatment of PD, March 2017, Yaoundé
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Tim Bunchman pic
IMG_5847.JPG
Appropriate Research for Your Region
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Boston Children’s Hospital Register and Login at
openpediatrics.org
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Modern Teaching Techniques
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Precision CRRT/Dynamic CRRT
Inline sensors for urea nitrogen measurement
Timing of initiation – demand/capacity imbalance
Clinical application of biomarkers
Fluid overload – FO% initiation for CRRT
Regional Citrate anti-coagulation and anti-thrombogenic membranes
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Overall recommendations: Critically ill patient with AKI
Caution with fluid resuscitation
Early consultation and assessment of %FO
Early initiation of CRRT + Inotropes over fluid administration to maintain BP
Appropriate expertise in management of RRT
DO what you are good at!
Do not delay
Call a friend
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Where is the kid?
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Family Centred Care
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SYL CLINICAL DIALYSIS SKILLS COURSE
Including Vascular Access, Acute Peritoneal Dialysis and Airway & Resuscitation
Aimed at Pairs of “Doctor and Nurse Teams”
19 – 23 February 2018
Surgical Skills Training Centre Red Cross War Memorial Children’s Hospital
Departments of Paediatrics, Anaesthetics & Paediatric Surgery
www.surgicalskills.co.za Debbie Rorich