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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04213040
Other study ID # 2013.3/11
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 1, 2013
Est. completion date December 31, 2013

Study information

Verified date February 2020
Source Kartal Kosuyolu Yuksek Ihtisas Education and Research Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

The aim of this study was to investigate the impact of serum values of procalcitonin (PCT), C-reactive protein (CRP) and lactate to predict postoperative complications in the early postoperative period after open-heart surgery with cardiopulmonary bypass (CPB).


Description:

The cardiopulmonary bypass (CPB) causes an inflammatory response secondary to the activation of cytokine systems in the whole body. The causes of this inflammation have been discussed extensively in the literature. As a concise summary the causes can be listed as; 1- the surgical stress, 2- the recognition of bypass circuit as an artificial surface by the blood components, 3- ischemia-reperfusion injury, 4- endotoxemia. After open-heart surgery with CPB, the development of several postoperative complications including myocardial dysfunction, respiratory failure, renal and neurologic dysfunction, bleeding disorders, altered liver function, and, multiple organ failure has been demonstrated to be related to the inflammatory response. Procalcitonin (PCT), is a 116-amino-acid protein that is produced in the liver and peripheral mononuclear cells and the normal serum PCT value is below 0.1 ng/mL in patients without signs of systemic inflammation. Serum PCT levels increase postoperatively after open-heart surgery and a peak level of 0.5 to 7.0 ng/mL is reported at 24 hours after the operation and serum PCT values decrease to normal values within seven days.

Serum C-reactive protein (CRP) values are often abnormally elevated after open-heart surgery as a result of an inflammatory response and it has not been found to be a useful prognostic marker due to its prolonged elevation after cardiac surgeries. In the literature, there are studies showing that serum PCT levels are consistently higher in patients with postoperative complications, however, a cutoff point for serum PCT to determine the risk of possible poor outcome has not been well studied. A recent study demonstrated that after CPB, serum PCT increased in patients with poor outcome especially in those who developed renal and hepatic dysfunction in addition to respiratory and circulatory insufficiency. This study demonstrated a cut off value of 2 ng/mL to predict postoperative complications. In another study, a PCT level of 2.8 ng/mL was found to be a cut off value to predict 28-day mortality in patients after coronary artery bypass grafting (CABG) however, it has been pointed out that there is a need for further studies.

The aim of our study was to investigate a relation between serum values of CRP, PCT, and lactate and development of postoperative complications (circulatory failure, pneumonia, respiratory insufficiency, sepsis, reoperation, hemorrhage, tamponade, need of inotropic support, myocardial infarction, acute kidney injury), in patients undergoing open-heart surgery with CPB. A sample size of 72 patients would have a power (1-ß) of 80% to detect a difference in serum PCT level of 10% (1 standard deviation) difference between patients with postoperative complications (n=36) and without postoperative complications (n=36) using 2-sided significance and an α=0.05.


Recruitment information / eligibility

Status Completed
Enrollment 214
Est. completion date December 31, 2013
Est. primary completion date July 31, 2013
Accepts healthy volunteers No
Gender All
Age group 19 Years to 80 Years
Eligibility Inclusion Criteria:

1. Older than 18 and younger than 80 years old,

2. Elective open heart surgery with cardiopulmonary bypass (CPB),

3. American Society of Anesthesiology (ASA) physical status of 2 or 3.

Exclusion Criteria:

1. Perioperative signs of infection (preoperatively, during operation or postoperatively during the study period) including a report of fever greater than 38 degrees centigrade, increase in white blood cell count, increase in C-reactive protein value,

2. The detection of pneumonia including infiltration in chest x-ray,

3. The diagnosis of multiple organ failure,

4. The use of corticosteroids or non-steroidal anti-inflammatory drugs within the last seven days before surgery.

Study Design


Intervention

Diagnostic Test:
Serum levels of Procalcitonin, C-reactive protein, lactate
Serum PCT, CRP, and lactate values were collected postoperatively every day starting on postoperative 12 hours, postoperative days 1 through 5. After the operation, all postoperative complications were recorded during the first seven days period. The relations between diagnostic tests and postoperative complications are sought by the use of the statistical analysis methods.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Kartal Kosuyolu Yuksek Ihtisas Education and Research Hospital

References & Publications (9)

Adamik B, Kübler-Kielb J, Golebiowska B, Gamian A, Kübler A. Effect of sepsis and cardiac surgery with cardiopulmonary bypass on plasma level of nitric oxide metabolites, neopterin, and procalcitonin: correlation with mortality and postoperative complicat — View Citation

Aouifi A, Piriou V, Blanc P, Bouvier H, Bastien O, Chiari P, Rousson R, Evans R, Lehot JJ. Effect of cardiopulmonary bypass on serum procalcitonin and C-reactive protein concentrations. Br J Anaesth. 1999 Oct;83(4):602-7. — View Citation

Fritz HG, Brandes H, Bredle DL, Bitterlich A, Vollandt R, Specht M, Franke UF, Wahlers T, Meier-Hellmann A. Post-operative hypoalbuminaemia and procalcitonin elevation for prediction of outcome in cardiopulmonary bypass surgery. Acta Anaesthesiol Scand. 2 — View Citation

Klingele M, Bomberg H, Schuster S, Schäfers HJ, Groesdonk HV. Prognostic value of procalcitonin in patients after elective cardiac surgery: a prospective cohort study. Ann Intensive Care. 2016 Dec;6(1):116. doi: 10.1186/s13613-016-0215-8. Epub 2016 Nov 23 — View Citation

Meisner M, Rauschmayer C, Schmidt J, Feyrer R, Cesnjevar R, Bredle D, Tschaikowsky K. Early increase of procalcitonin after cardiovascular surgery in patients with postoperative complications. Intensive Care Med. 2002 Aug;28(8):1094-102. Epub 2002 Jul 6. — View Citation

Sablotzki A, Dehne MG, Friedrich I, Grond S, Zickmann B, Mühling J, Silber RE, Czeslick EG. Different expression of cytokines in survivors and non-survivors from MODS following cardiovascular surgery. Eur J Med Res. 2003 Feb 21;8(2):71-6. — View Citation

Sponholz C, Sakr Y, Reinhart K, Brunkhorst F. Diagnostic value and prognostic implications of serum procalcitonin after cardiac surgery: a systematic review of the literature. Crit Care. 2006;10(5):R145. Review. — View Citation

Vohra HA, Whistance R, Modi A, Ohri SK. The inflammatory response to miniaturised extracorporeal circulation: a review of the literature. Mediators Inflamm. 2009;2009:707042. doi: 10.1155/2009/707042. Epub 2010 Jan 13. Review. — View Citation

Warren OJ, Smith AJ, Alexiou C, Rogers PL, Jawad N, Vincent C, Darzi AW, Athanasiou T. The inflammatory response to cardiopulmonary bypass: part 1--mechanisms of pathogenesis. J Cardiothorac Vasc Anesth. 2009 Apr;23(2):223-31. doi: 10.1053/j.jvca.2008.08.007. Epub 2008 Oct 19. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary The comparison of serum procalcitonin values postoperatively Serum Procalcitonin values were collected postoperatively for five days and a change from the postoperative 12 hours value was evaluated using appropriate statistical analysis. Later, a repeated measures statistical analysis was also performed. Postoperatively every day starting on postoperative 12 hours, postoperative days 1 through 5.
Primary The comparison of serum-reactive protein values postoperatively Serum C-reactive protein values were collected postoperatively for five days and a change from the postoperative 12 hours value was evaluated using appropriate statistical analysis. Later, a repeated measures statistical analysis was also performed. Postoperatively every day starting on postoperative 12 hours, postoperative days 1 through 5.
Primary The comparison of serum lactate values postoperatively Serum Lactate values were collected postoperatively for five days and a change from the postoperative 12 hours value was evaluated using appropriate statistical analysis. Later, a repeated measures statistical analysis was also performed. Postoperatively every day starting on postoperative 12 hours, postoperative days 1 through 5.
Secondary Complications Postoperative complications were collected and recorded. Postoperatively for a duration of seven days after operation.
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