Diagnosis and Management of Neonatal Shock

NCT ID: NCT03691233

Last Updated: 2018-10-01

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 100 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2018-11-01
• Study Completion Date: 2019-12-30

Brief Summary

The aim of this clinical audit is to assess the degree of adherence of medical physicians in Assiut university children hospital protocol for diagnosis and management of neonatal shock to the international guidelines.

Detailed Description

Introduction Shock is defined as a state of impaired cellular energy (ATP) synthesis when tissue oxygen delivery no longer satisfies tissue oxygen demand (Kleinman etal., 2012)

Shock is an independent predictor of early neonatal mortality and more often a problem in preterm infants than in term infants, even late preterm infants are at much higher risk (Femitha and Bhat, 2012)

In the first phase of shock, perfusion and oxygen delivery is maintained towards the so-called vital organs (heart, brain, and adrenal glands) by selective regional vasodilation in combination with vasoconstriction to non-essential tissues, such as muscles, skin, kidneys, and the splanchnic tissues. This is the compensated stage of shock. As the product of cardiac output (which falls) and systemic vascular resistance (which increases), blood pressure actually remains in the normal range in a compensated shock. When this redistribution fails, perfusion and oxygenation of the vital organs will become impaired, resulting in multi-organ dysfunction. In this phase of uncompensated shock, systemic hypotension might be expected (Willem etal., 2018)

Echocardiography is one of the emerging technologies that can be used to measure cardiac output in critically ill newborn infants, especially since the clinical estimation of cardiac output is rather inaccurate (de Boode, 2010)

Diagnosis of Shock

The clinical diagnosis of shock in the early compensated phase often depends on assessment of peripheral perfusion,pulse volume, heart rate changes, metabolic acidosis and urine output.

Ideally, shock should be diagnosed at this stage. In the later uncompensated phase, blood pressure (BP) becomes a key parameter for monitoring and for titrating inotropes and fluids Willem etal.,2018). )

Clinicians rely on BP measurements to diagnose hypotension and to titrate therapy. Hypotension in preterm infants has been associated with an increased risk of intraventricular hemorrhage (Vishnu and Plakkal, 2015)

Treatment of Shock:

1. Volume Expanders

It is common practice to give one or two normal saline boluses when neonates present in shock, before assessing the need for inotropes.

Apart from saline, albumin or other colloids are also sometimes used for volume expansion.

2. Drug Therapy of Neonatal Shock

Dopamine is an endogenous catecholamine and has been shown to raise the blood pressure in hypotensive infants better than either albumin or dobutamine (Osborn and Evan, 2005) Cardiac arrhythmias And extravasation injury are potential adverse effects (Osborn etal., 2004)

Dobutamine, unlike dopamine, does not have endocrine effects and does not depend on the release of endogenous catecholamines for effect. It is predominantly inotropic, with some vasodilator effects, Indeed, there is some evidence that dobutamine is better than dopamine at increasing and maintaining systemic blood flow in preterm infants with low systemicblood flow (Subhedar and Shaw, 2003).

Epinephrine is usually used when shock is refractory to dopamine and dobutamine, although some use it as a first line drug, especially when septic shock is suspected (Maria etal., 2004)

Norepinephrine use in neonates is uncommon due to its vasoconstrictive effects, resulting in organ hypoperfusion and increased myocardial work (Pierre etal., 2008)

Hydrocortisone is most commonly used in catecholamine resistant shock in treatment of hypotension in very low birth weight infants (vishnu and plakkal, 2015). Hyperglycemia can be a troublesome short-term side effect (Ng etal., 2006)

Vasopressin is a potent vasoconstrictor and useful in vasodilatory shock (Brierley etal., 2009).

Supportive Treatment:

Pulmonary Support. Most neonates with shock requiring inotropic support will also require mechanical ventilation.(especially <28 wk) (Saugstad and Aune, 2014].

Antibiotics.

• Empirical antibiotics should be chosen based on prevailing infection patterns in each NICU (Adrienne etal., 2003)

Newer Developments in the Management of Neonatal Shock

Milrinone and amrinone are phosphodiesterase III inhibitors. they are vasodilators, hypotension can result. However, they are excellent inotropes and can also reduce pulmonary pressures (Nick etal., 2009)

Levosimendan is a newer drug which causes vasodilatation and improves calcium coupling to troponin, resulting in an increase in myocardial contractility (Papoff etal., 2012)

Conditions

Neonatal Disorder

Study Design

• Observational Model Type: CASE_ONLY
• Study Time Perspective: PROSPECTIVE

Interventions

Clinical audit on diagnosis and management of neonatal shock

intervenous

Intervention Type: DRUG

Other Intervention Names

fliuds

Eligibility Criteria

Inclusion Criteria

• All neonates (preterm or full term) who are developing shock

Exclusion Criteria

• Neonates with multiple congenital anomalies

• Minimum Eligible Age: 1 Minute
• Maximum Eligible Age: 28 Days
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Assiut University

OTHER

Sponsor Role: lead

Responsible Party

Walaa Ahmed Ezzat Sadak

Principal investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Safwat M Abd Al-ziz, lecture

Role: PRINCIPAL_INVESTIGATOR

Safwatabdelaziz371@yahoo.com

Central Contacts

Nagwa Ali Mohamed, professer

Role: CONTACT

Namma65@yahoo.com

01096260950

Safwat M Abd Al-ziz, lecture

Role: CONTACT

Safwatabdelaziz371@yahoo.com

01003918080

References

Bhat BV, Plakkal N. Management of Shock in Neonates. Indian J Pediatr. 2015 Oct;82(10):923-9. doi: 10.1007/s12098-015-1758-7. Epub 2015 May 21.

Reference Type: BACKGROUND

PMID: 25990594 (View on PubMed)

de Boode WP, van der Lee R, Horsberg Eriksen B, Nestaas E, Dempsey E, Singh Y, Austin T, El-Khuffash A; European Special Interest Group 'Neonatologist Performed Echocardiography' (NPE). The role of Neonatologist Performed Echocardiography in the assessment and management of neonatal shock. Pediatr Res. 2018 Jul;84(Suppl 1):57-67. doi: 10.1038/s41390-018-0081-1.

Reference Type: BACKGROUND

PMID: 30072807 (View on PubMed)

Osborn DA, Evans N. Early volume expansion versus inotrope for prevention of morbidity and mortality in very preterm infants. Cochrane Database Syst Rev. 2001;2001(2):CD002056. doi: 10.1002/14651858.CD002056.

Reference Type: BACKGROUND

PMID: 11406028 (View on PubMed)

Ng PC, Lee CH, Bnur FL, Chan IH, Lee AW, Wong E, Chan HB, Lam CW, Lee BS, Fok TF. A double-blind, randomized, controlled study of a "stress dose" of hydrocortisone for rescue treatment of refractory hypotension in preterm infants. Pediatrics. 2006 Feb;117(2):367-75. doi: 10.1542/peds.2005-0869.

Reference Type: BACKGROUND

PMID: 16452355 (View on PubMed)

Femitha P, Bhat BV. Early neonatal outcome in late preterms. Indian J Pediatr. 2012 Aug;79(8):1019-24. doi: 10.1007/s12098-011-0620-9. Epub 2011 Dec 10.

Reference Type: BACKGROUND

PMID: 22161578 (View on PubMed)

Saugstad OD, Aune D. Optimal oxygenation of extremely low birth weight infants: a meta-analysis and systematic review of the oxygen saturation target studies. Neonatology. 2014;105(1):55-63. doi: 10.1159/000356561. Epub 2013 Nov 15.

Reference Type: BACKGROUND

PMID: 24247112 (View on PubMed)

Brierley J, Carcillo JA, Choong K, Cornell T, Decaen A, Deymann A, Doctor A, Davis A, Duff J, Dugas MA, Duncan A, Evans B, Feldman J, Felmet K, Fisher G, Frankel L, Jeffries H, Greenwald B, Gutierrez J, Hall M, Han YY, Hanson J, Hazelzet J, Hernan L, Kiff J, Kissoon N, Kon A, Irazuzta J, Lin J, Lorts A, Mariscalco M, Mehta R, Nadel S, Nguyen T, Nicholson C, Peters M, Okhuysen-Cawley R, Poulton T, Relves M, Rodriguez A, Rozenfeld R, Schnitzler E, Shanley T, Kache S, Skippen P, Torres A, von Dessauer B, Weingarten J, Yeh T, Zaritsky A, Stojadinovic B, Zimmerman J, Zuckerberg A. Clinical practice parameters for hemodynamic support of pediatric and neonatal septic shock: 2007 update from the American College of Critical Care Medicine. Crit Care Med. 2009 Feb;37(2):666-88. doi: 10.1097/CCM.0b013e31819323c6.

Reference Type: BACKGROUND

PMID: 19325359 (View on PubMed)

Osborn DA, Evans N. Early volume expansion for prevention of morbidity and mortality in very preterm infants. Cochrane Database Syst Rev. 2004;2004(2):CD002055. doi: 10.1002/14651858.CD002055.pub2.

Reference Type: BACKGROUND

PMID: 15106166 (View on PubMed)

Subhedar NV, Shaw NJ. Dopamine versus dobutamine for hypotensive preterm infants. Cochrane Database Syst Rev. 2003;(3):CD001242. doi: 10.1002/14651858.CD001242.

Reference Type: BACKGROUND

PMID: 12917901 (View on PubMed)

Related Links

http://www.ncbi.nlm.nih.gov/pubmed/25990594

pupmed

http://www.ncbi.nlm.nih.gov/pubmed/11406028?dopt=Abstract

pupmed

Other Identifiers

neonatal shock

Identifier Type: -

Identifier Source: org_study_id