Dr Vida Hamilton FCARCSI FJFICMI National Clinical Lead Sepsis
Bone 1996
Control inflammation – improve outcome Multiple studies • Steroids • Anti- TNF • Anti-IL1 • Anti-IL6 • Other monoclonal antibodies At best – no improvement Often – increased mortality
NEJM 2003
Regulated • Innate & Adaptive Cellular: Dendritic cells, T-cells, B-cells PAMPs that bind TLR 2,3,4, Mannin-binding lecithin receptors (DAMPs) Molecular: complement, acute phase, cytokines Anti-viral: Interfon, local cellular immunity, apoptosis
Micro-organism • Virulence • Innoculation dose • Multi-drug resistance Host • Genetic polymorphisms • Co-morbidities Age Chronic health status Immuno-modulatory medications
Hotchkiss 2013
Multi-organ dysfunction then failure • Little necrosis • Apoptosis of the cellular immune system • ‘Hibernation’ theory
D4 Lymphopenia HLA – DR expression • Eosinopenia – Eckhart 1890’s Recrudescence of latent viruses • CMV, HSV New therapies • ‘Stimulate immune system – improve outcome’ • GM-CSF
• SOFA score Rise ≥ 2 points • Respiration Coagulation • Liver Cardiovascular • CNS Renal qSOFA 2/3 • RR> 22, Altered Mental status, SBP <100 1 o outcome: increased specificity in predicting Mortality > 10%; ICU LOS > 3 days
Not a trigger to treat Identifies a cohort of patients with high risk of mortality and intensive care requirement Trigger to treat remains • INFECTION + SYSTEMIC INFLAMMATION and/ or NEW ONSET ORGAN DYSFUNCTION
Common Sepsis: 330 per 100,000 per annum AMI: 208 per 100,000 per annum Mortality: 20 - 55% 2013: 187 cases per 100,000
40% 35% 30% Mortality Rate 25% 20% 15% 10% 5% 0% 0-14 15-34 35-44 45-54 55-64 65-74 75-84 85+ Years Years Years Years Years Years Years Years
50.0% 45.0% 40.0% 35.0% Mortality Rate 30.0% 25.0% 20.0% 15.0% 10.0% 5.0% 0.0% 0-14 15-34 35-44 45-54 55-64 65-74 75-84 85+ Years Years Years Years Years Years Years Years
50 45 40 35 30 Australia 25 Ireland 20 15 10 5 0 < 44 years 45 - 64 65 - 84 >= 85
Recognised outcome measures of acute care quality Number per Mortality Change in annum Mortality 2004 - 2013 40% 6125 6.4% AMI 1456 26% H. Stroke 13.6% 4485 10% I. Stroke 9859 20.4% Sepsis
90% of cases with poor outcome in the Australian sepsis database, inadequate recognition was found to be the most common feature
The categorisation of the severity of a patients illness The early detection of that deterioration The use of a standardised and structured communication tool such as ISBAR Early medical review that is prompted by evidence based trigger points A definite escalation plan that is monitored and audited on a regular basis
Sepsis is increasing in incidence It is expensive, health and financial Patients who receive • Oxygen • Antimicrobials • IV fluids Within 1 hour in severe sepsis Compliant < 20% mortality Non-compliant > 30%
Give 3 Take 3 1. OXYGEN: Titrate O 2 to saturations 1. CULTURES : Take blood cultures of 94 -98% or 88-92% in chronic lung before giving antimicrobials (if no disease. significant delay i.e. >45 minutes) and consider source control. 2. FLUIDS : Start IV fluid resuscitation 2. BLOODS : Check point of care if evidence of hypovolaemia. 500ml lactate & full blood count. Other tests bolus of isotonic crystalloid over 15mins and investigations as per history and & give up to 30ml/kg, reassessing for examination. signs of hypovolaemia, euvolaemia, or fluid overload. 3. ANTIMICROBIALS : Give IV 3. URINE OUTPUT : Assess urine antimicrobials according to local output antimicrobial guidelines .
It is a continuum Infection • Pathological invasion of a normally sterile site Sepsis Severe sepsis Septic shock Multi-organ failure
General variables • T o C, HR, RR, WCC, BSL, Mental status Inflammatory variables • CRP, Procalcitonin Organ dysfunction variables Tissue hypo-perfusion variables • Lactate, CRT Haemodynamic insufficiency variables • Sys BP <90, MAP < 65, CO
New onset organ dysfunction Worsening organ dysfunction • Due to infection SIRS SOFA Treatment • O 2 / Ventilation Cultures/source control • IV fluids/ pressors Tests/ investigations • Antimicrobials Urine output/ other organs
Re-assess Repeat lactate if the 1 st was abnormal (or if patient deteriorates)
Apply vasopressors for hypotension not responding to fluid resuscitation • CVC • Arterial line Repeat lactate as clinically indicated
Trzeciak et al; Intensive Care Med (2007) 33:970 – 977
NEJM 2003
Figure 3. Mean hospital mortality among patients with decreased lactate within 8 hours of index test, stratified by total fluid received in increments of 7.5 ml/kg based on medication administration record. Annals ATS, 2013 http://www.atsjournals.org/doi/abs/10.1513/AnnalsATS.201304-099OC
Respiratory 38% Urinary tract 21% Intra-abdominal 16.5% CRBSI 2.3% Device 1.3% CNS 0.8% Others 11.3%
Reduces the relative risk of death by 46.6% 1 additional life saved for every 5 care episodes Mortality reduced from 44% to 20% Daniels et al, Emergency medicine journal 2011
Inital Sepsis Bundle 100 90 80 Percent in Compliance 70 60 50 40 30 20 10 0 Oct-14 Nov-14 Dec-14 Jan-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Serum lactate within 3 Hrs Blood Culture before Antibiotics Antibiotic Compliance Fluids for hypotension or elevated lactate
Bacteria, viruses, fungi, parasites Sepsis is the common fatal pathway H1N1 – Immunocompromised host Elderly Co-morbidities Pregnant Presented with organ failure Treatment supportive, anti-virals Vaccinate – prevention better than cure
Black death • Famine induced immuno-compromised host • Poverty, lack of knowledge Spanish ‘flu • Pathogen mutation – increased virulence • War, mass movement, lack of knowledge EVD • Poverty, lack of knowledge, cultural practice Hand hygiene/ Sanitation / Education
High or very low temperature Fast heart rate Fast respiratory rate Little urine output Altered mental state Severe leg pain ‘I feel like I am dying’ • Survivors self reported symptoms and signs • UK Sepsis trust
Source control • Drainage • Debridement Responding • Stabilisation De-escalation
Decrease mortality x 20% over 5 yrs Decrease chronic sequelae More efficient use of limited healthcare resources Promote preventative practices
Guideline 2014 Implementation 2015 Pathways • Paramedic • Maternity • Paediatrics • Primary care • Prison service • Nursing homes
Awareness • Hospital site visits • Community awareness Education • Undergraduate, • Postgraduate • National intern training • (Safe start programme) • E-learning • Smart phone app
National Sepsis Outcome Report • Incidence • Mortality rate • Median LOS • ICU admission rate Compliance audit • Clinical decision support tool usage • Time to 1 st dose antimicrobials
Ist update of National Guideline Quantify the burden of sequelae in survivors of severe sepsis and septic shock Develop and assess a rehabilitation programme
Any questions? www.hse.ie/sepsis @vidamthamilton
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