Title: Elevation of Troponin-I in Sepsis & Septic Shock

Authors: Dr Veena Santhoshi Avva, Dr Vedavathi

 DOI:  https://dx.doi.org/10.18535/jmscr/v5i1.113

Abstract

The study of Elevation of troponin I in sepsis and septic shock on 40 patients was conducted in KIMS Hospital and research centre ICU, Bangalore during the period from November 2012 to May 2014. Cases were selected according to the sepsis criteria and enrolled for study. Objective: To determine the association of elevated cTnI levels in patients with sepsis and septic shock.

Methodology & Results: Data were analyzed between sepsis and septic shock groups and between troponin I positive and negative groups. The average age groups in sepsis were 47.7 and in septic shock were 53.8. Males were mostly affected in both sepsis and septic shock groups (67%) than females (32.5%). ECG was normal in majority of patients and sinus tachycardia seen in majority of patients with septic shock. ECHO showed normal in all patients expect in two patients in septic shock group who had global hypokinesia. Majority of Patients were diagnosed with Pneumonia (45%). Troponin I showed positive in 29(72.5%) patients and normal in 11(27.5%) patients which was statistically significant. Troponin I showed positive, more in septic shock group 19(95%) as compared to sepsis group 10(50%). In majority of cTnI positive patients CK (18(62.0%) and CK-MB 17(58.6%) was elevated which is not significant. Troponin I positive patients requiring ventillatory support (82.7%), dialysis (24.1%), ionotropic support (65.5%) were more than patients in negative group requiring ventillatory support (45%), dialysis 2(18.1%) and ionotropic support(9%). In troponin I positive group from all cultures gram positive isolated was 11(63.6%) and gram negative was 28(96.5%). In troponin I negative group from all culture gram positive isolated were 7(37.9%) and gram negative were 5(45.4%). Isolation of gram positive and gram negative organisms in troponin I positive group was 39(134.4%) compared to negative group which is 12(109.09%). Isolation of fungi and virus (H1N1) in troponin I positive group showed 6(20.6%) compared to negative group which is 1(90.9%) showing statistically significant.

Conclusion: Elevation of troponin I in sepsis and septic shock indicates inflammatory and toxic damage to heart apart from ischemic damage caused by myocardial Infarction.

References

1.      Andrew R Chapman. Assessment and classification of patients with myocardial injury and infarction in clinical practice. Heart 2017;103:10-18

2.      Alfredo Bardají. Troponin Elevation in Patients Without Acute Coronary Synd-rome. Rev Esp Cardiol. 2015;68:469-76

3.      Jaffe AS, Ravkilde J, Roberts R, et al. It’s time for a change to a troponin standard. Circulation. 2000; 102: 1216–1220.

4.      Myocardial infarction redefined: a Consensus document of The Joint European Society of Cardiology/American College of Cardiology Committee for the redefinition of myocardial infarction. J Am Coll Cardiol. 2000; 36: 959–969.

5.      Hamm CW, Braunwald E. A classification of unstable angina revisited. Circulation. 2000; 102: 118–122

6.      Bertrand ME, Simoons ML, Fox KAA, et al. Management of acute coronary syndromes: acute coronary syndromes without persistent ST segment elevation: recommendations of the Task Force of the European Society of Cardiology. Eur Heart J. 2000; 21: 1406–1432.

7.      Braunwald E, Antman EM, Beasley JW, et al. ACC/AHA guidelines for the management of patients with unstable angina and non-ST-segment elevation myocardial infarction: executive summary and recommendations: a report of the American College of Cardiology/-American Heart Association task force on practice guidelines (committee on the management of patients with unstable angina). Circulation. 2000; 102: 1193–1209

8.      Amman P, Maggiorini M, Bertel O, et al. Troponin as a risk factor for mortality in critically ill patients with acute coronary syndrome. J Am Coll Cardiol. 2003; 41 (11):2004–2009.

9.      Elevated Cardiac Troponin I in sepsis and septic shock: No Evidence for Thrombus Associated Myocardial Necrosis. David R Altmann , Korte W, Maeder MT, Fehr T, Haager P, et al. PLoS ONE. 5(2) February 3 2010.

Corresponding Author

Dr Veena Santhoshi Avva

KIMS Hospital