Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study

Introduction: Shock Index (SI), is a simple ratio of Heart Rate (HR) and Systolic Blood Pressure (SBP) and a good marker of haemodynamic stability than HR or SBP individually. Aim: To assess the prognostic value of sequential SI and to compare whether higher SI at admission or worsening SI since ad...

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Main Authors: Gulnaz Nadri, Deepti Jain, Vineeta Wadhwa
Format: Article
Language:English
Published: JCDR Research and Publications Private Limited 2022-01-01
Series:Journal of Clinical and Diagnostic Research
Subjects:
Online Access:https://www.jcdr.net/articles/PDF/15916/47706_CE[Ra1]_F[SH]_GC(AnK)_PF1(DA_SS)_PN(KM).pdf
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author Gulnaz Nadri
Deepti Jain
Vineeta Wadhwa
author_facet Gulnaz Nadri
Deepti Jain
Vineeta Wadhwa
author_sort Gulnaz Nadri
collection DOAJ
description Introduction: Shock Index (SI), is a simple ratio of Heart Rate (HR) and Systolic Blood Pressure (SBP) and a good marker of haemodynamic stability than HR or SBP individually. Aim: To assess the prognostic value of sequential SI and to compare whether higher SI at admission or worsening SI since admission predicts higher mortality in children. Materials and Methods: The present cohort study included 50 children between 1-5 years who presented in the Paediatric emergency with shock. The HR, SBP and SI were calculated at 0 and 6 hours of admission. According to the changes in SI over time, the children were divided into four groups, Group 1 (normal SI at 0 and 6 hours), Group 2 (normal SI at 0 hours and abnormal SI at 6 hours), Group 3 (abnormal SI at 0 hours and normal SI at 6 hours), Group 4 (abnormal SI at 0 and 6 hours). They were followed to their condition at discharge and were further subdivided into two groups (survived/died). The relative risk of death was compared among the groups. Results: Taking the first group as the reference, the relative risk of mortality was 1.442 (Group 2), 1.026 (Group 3), 2.712 (Group 4) i.e., the risk of mortality was highest in the children with worsening SI since admission. Difference in SI at 0 and 6 hours was statistically significant between survivors and non survivors (p=0.001, p<0.001, respectively). In the ROC, SI at 0 hours (0.877) had more sensitivity than SI at 6 hours (0.863). Conclusion: The SI is a simple, non invasive, cost-effective and a quick tool to detect patients with high risk of mortality and can be used as a quick non invasive method for prompt identification and categorisation of critical illness in Emergency Department. It should be added to HR and SBP, thereby assisting in early identification of septic shock and also the need for aggressive management. Sequential SI values can have a better prognostic value than single admission SI.
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spelling doaj.art-4ab4f9f1e43348609208e2cb448667c52023-01-30T11:03:20ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2022-01-01161SC08SC1110.7860/JCDR/2022/47706.15916Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort StudyGulnaz Nadri0Deepti Jain1Vineeta Wadhwa2Paediatrician, Department of Paediatrics, J.N. Medical College, A.M.U, Aligarh, Uttar Pradesh, India.Specialist Grade 1, Department of Paediatrics, Dr. Baba Saheb Ambedkar Medical College and Hospital, New Delhi, India.Chief Medical Officer, Department of Paediatrics, Dr. Baba Saheb Ambedkar Medical College and Hospital, New Delhi, India.Introduction: Shock Index (SI), is a simple ratio of Heart Rate (HR) and Systolic Blood Pressure (SBP) and a good marker of haemodynamic stability than HR or SBP individually. Aim: To assess the prognostic value of sequential SI and to compare whether higher SI at admission or worsening SI since admission predicts higher mortality in children. Materials and Methods: The present cohort study included 50 children between 1-5 years who presented in the Paediatric emergency with shock. The HR, SBP and SI were calculated at 0 and 6 hours of admission. According to the changes in SI over time, the children were divided into four groups, Group 1 (normal SI at 0 and 6 hours), Group 2 (normal SI at 0 hours and abnormal SI at 6 hours), Group 3 (abnormal SI at 0 hours and normal SI at 6 hours), Group 4 (abnormal SI at 0 and 6 hours). They were followed to their condition at discharge and were further subdivided into two groups (survived/died). The relative risk of death was compared among the groups. Results: Taking the first group as the reference, the relative risk of mortality was 1.442 (Group 2), 1.026 (Group 3), 2.712 (Group 4) i.e., the risk of mortality was highest in the children with worsening SI since admission. Difference in SI at 0 and 6 hours was statistically significant between survivors and non survivors (p=0.001, p<0.001, respectively). In the ROC, SI at 0 hours (0.877) had more sensitivity than SI at 6 hours (0.863). Conclusion: The SI is a simple, non invasive, cost-effective and a quick tool to detect patients with high risk of mortality and can be used as a quick non invasive method for prompt identification and categorisation of critical illness in Emergency Department. It should be added to HR and SBP, thereby assisting in early identification of septic shock and also the need for aggressive management. Sequential SI values can have a better prognostic value than single admission SI.https://www.jcdr.net/articles/PDF/15916/47706_CE[Ra1]_F[SH]_GC(AnK)_PF1(DA_SS)_PN(KM).pdfhaemodynamic parametersmortalitysepsissurvival
spellingShingle Gulnaz Nadri
Deepti Jain
Vineeta Wadhwa
Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
Journal of Clinical and Diagnostic Research
haemodynamic parameters
mortality
sepsis
survival
title Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
title_full Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
title_fullStr Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
title_full_unstemmed Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
title_short Sequential Shock Index as a Prognostic Marker in Children with Septic Shock- A Cohort Study
title_sort sequential shock index as a prognostic marker in children with septic shock a cohort study
topic haemodynamic parameters
mortality
sepsis
survival
url https://www.jcdr.net/articles/PDF/15916/47706_CE[Ra1]_F[SH]_GC(AnK)_PF1(DA_SS)_PN(KM).pdf
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