Brain function monitoring during off pump cardiac surgery: the effect of cardiac output on cerebral perfusion in a patient with severe extracranial vascular disease

2006 ◽  
Vol 23 (Supplement 37) ◽  
pp. 26
Author(s):  
P. Zanatta ◽  
C. Valfrè ◽  
E. Bosco ◽  
V. Salandin ◽  
M. Sarpellon ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Surgery ◽  
Vascular Disease ◽  
Brain Function ◽  
Cerebral Perfusion ◽  
Off Pump ◽  
Brain Function Monitoring

scholarly journals Brain function monitoring during off-pump cardiac surgery: a case report

Cases Journal ◽  
2008 ◽  
Vol 1 (1) ◽  
Author(s):  
Paolo Zanatta ◽  
Enrico Bosco ◽  
Piero Di Pasquale ◽  
Agarwal Nivedita ◽  
Carlo Valfrè ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Case Report ◽  
Brain Function ◽  
Off Pump ◽  
Brain Function Monitoring

scholarly journals Vasoplegic syndrome: A challenge to anaesthetic management

2015 ◽  
Vol 02 (02) ◽  
pp. 139-141 ◽  
Author(s):  
Amarjyoti Hazarika ◽  
Gyaninder Singh ◽  
Vishwas Malik ◽  
Parmod Bithal
Keyword(s):  
Cardiac Output ◽  
Cardiac Surgery ◽  
Anaesthetic Management ◽  
Systemic Resistance ◽  
High Cardiac Output ◽  
Off Pump ◽  
Intraoperative Hypotension ◽  
Severe Hypotension ◽  
Persistent Hypotension ◽  
Vasoplegic Syndrome

AbstractPerioperative hypotension is a well-recognized and relatively common problem during surgery. Vasoplegic syndrome is one such condition which is characterized by severe persistent hypotension with normal to high cardiac output and low systemic resistance. It is commonly seen in patients undergoing cardiac surgery on cardiopulmonary bypass. However, this syndrome has also been reported in off pump surgeries. Management of intraoperative hypotension may be challenging for an anaesthesiologist, if it does not respond or poorly respond to conventional therapy. We report the management of a hypertensive patient posted for spine surgery in prone position, who developed severe hypotension under anaesthesia refractory to treatment.

Is there a difference in circulatory inflammatory response between on- versus off pump cardiac surgery?

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
S Lehmann ◽  
J Garbade ◽  
J Seeburger ◽  
S Leontyev ◽  
S Dhein ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Inflammatory Response ◽  
Off Pump

Risk factors for poor outcome after ECMO treatment of low cardiac output after cardiac surgery

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
S Deiters ◽  
H Welp ◽  
J Graf ◽  
A Löher ◽  
S Schneider ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiac Output ◽  
Cardiac Surgery ◽  
Low Cardiac Output ◽  
Poor Outcome ◽  
Ecmo Treatment

Blood gas analysis in newborns with low cardiac output syndrome after cardiac surgery.

2018 ◽  
Vol 19 (5) ◽  
pp. 676-687
Author(s):  
G.G. Khubulava ◽  
A.B. Naumov ◽  
S.P. Marchenko ◽  
O.Yu. Chupaeva ◽  
A.A. Seliverstova ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Surgery ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Blood Gas ◽  
Low Cardiac Output Syndrome ◽  
Low Cardiac Output

scholarly journals Dobutamine-sparing versus dobutamine-to-all strategy in cardiac surgery: a randomized noninferiority trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rafael Alves Franco ◽  
Juliano Pinheiro de Almeida ◽  
Giovanni Landoni ◽  
Thomas W. L. Scheeren ◽  
Filomena Regina Barbosa Gomes Galas ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Cardiac Surgery ◽  
Prolonged Mechanical Ventilation ◽  
Kidney Injury ◽  
Composite Endpoint ◽  
Tissue Perfusion ◽  
Hospital Length Of Stay ◽  
Low Cardiac Output Syndrome ◽  
Low Cardiac Output ◽  
Noninferiority Trial

Abstract Background The detrimental effects of inotropes are well-known, and in many fields they are only used within a goal-directed therapy approach. Nevertheless, standard management in many centers includes administering inotropes to all patients undergoing cardiac surgery to prevent low cardiac output syndrome and its implications. Randomized evidence in favor of a patient-tailored, inotrope-sparing approach is still lacking. We designed a randomized controlled noninferiority trial in patients undergoing cardiac surgery with normal ejection fraction to assess whether an dobutamine-sparing strategy (in which the use of dobutamine was guided by hemodynamic evidence of low cardiac output associated with signs of inadequate tissue perfusion) was noninferior to an inotrope-to-all strategy (in which all patients received dobutamine). Results A total of 160 patients were randomized to the dobutamine-sparing strategy (80 patients) or to the dobutamine-to-all approach (80 patients). The primary composite endpoint of 30-day mortality or occurrence of major cardiovascular complications (arrhythmias, acute myocardial infarction, low cardiac output syndrome and stroke or transient ischemic attack) occurred in 25/80 (31%) patients of the dobutamine-sparing group (p = 0.74) and 27/80 (34%) of the dobutamine-to-all group. There were no significant differences between groups regarding the incidence of acute kidney injury, prolonged mechanical ventilation, intensive care unit or hospital length of stay. Discussion Although it is common practice in many centers to administer inotropes to all patients undergoing cardiac surgery, a dobutamine-sparing strategy did not result in an increase of mortality or occurrence of major cardiovascular events when compared to a dobutamine-to-all strategy. Further research is needed to assess if reducing the administration of inotropes can improve outcomes in cardiac surgery. Trial registration ClinicalTrials.gov, NCT02361801. Registered Feb 2nd, 2015. https://clinicaltrials.gov/ct2/show/NCT02361801

scholarly journals Off-Pump Technique May Prevent Worsening of Renal Function in CAD with CKD Undergoing CABG

2021 ◽  
Vol 05 (01) ◽  
pp. 007-011
Author(s):  
Shaheen Afsal ◽  
K. Sujani ◽  
Shashank Viswanathan ◽  
Akshay Bhati ◽  
Harish BR ◽  
...  
Keyword(s):  
Renal Function ◽  
Cardiac Surgery ◽  
Serum Creatinine ◽  
Renal Dysfunction ◽  
Normal Renal Function ◽  
Artery Bypass ◽  
Significant Proportion ◽  
Renal Dialysis ◽  
Off Pump ◽  
Preoperative Serum

AbstractCardiovascular disease (CVD) is a major cause for a significant proportion of all deaths and disability worldwide. Postoperative renal dysfunction following cardiac surgery is not an uncommon complication of cardiac surgery, which has serious implications with regard to morbidity, mortality, financial expenditure, and resource utilization. This study was performed to compare outcomes of patients with preoperative renal dysfunction with those having normal renal function undergoing off-pump coronary artery bypass grafting (OPCABG). Patients were divided into two categories, depending on their preoperative serum creatinine and glomerular filtration rate (GFR). The preoperative renal dysfunction was defined as serum creatinine >1.3 mg/dL and/or estimated GFR (eGFR) of <60 mL/min/1.73 m2. The category A patients had normal renal function defined as serum creatinine ≤1.3 mg/dL and/or eGFR of ≥60 mL/min/1.73 m2 while the category B patients had preoperative renal dysfunction that did not necessitate renal dialysis. Blood samples were collected from both category patients for serum creatinine prior to surgery, following surgery, on postoperative days 1, 2, 3, 4, 5, and on the day of discharge. The occurrence of acute kidney injury (AKI) was defined as an increase in the serum creatinine levels of ≥0.3 mg/dL within 48 hours or an increase of ≥1.5 above baseline known or presumed to have occurred within the previous 7 days based on Kidney Disease Improving Global Outcomes criteria. This study demonstrated that there was worsening of renal function in 7.4% of patients with normal renal function and 10.74% of patients with renal dysfunction that was not statistically different. Based on the results, we conclude that preoperative renal dysfunction may be a contributing predictor of AKI following OPCABG, and we recommend that the patients with more severe renal dysfunction with eGFR of 45–60 mL/min should be studied to demonstrate this hypothesis.

Syncope, cerebral perfusion, and oxygenation

2003 ◽  
Vol 94 (3) ◽  
pp. 833-848 ◽  
Author(s):  
Johannes J. Van Lieshout ◽  
Wouter Wieling ◽  
John M. Karemaker ◽  
Niels H. Secher
Keyword(s):  
Cardiac Output ◽  
Cerebral Perfusion ◽  
Near Infrared ◽  
Vasovagal Syncope ◽  
Low Frequencies ◽  
Healthy Humans ◽  
Standing Up ◽  
Arterial Inflow ◽  
Cerebral Blood Velocity ◽  
Critical Reduction

During standing, both the position of the cerebral circulation and the reductions in mean arterial pressure (MAP) and cardiac output challenge cerebral autoregulatory (CA) mechanisms. Syncope is most often associated with the upright position and can be provoked by any condition that jeopardizes cerebral blood flow (CBF) and regional cerebral tissue oxygenation (cO2Hb). Reflex (vasovagal) responses, cardiac arrhythmias, and autonomic failure are common causes. An important defense against a critical reduction in the central blood volume is that of muscle activity (“the muscle pump”), and if it is not applied even normal humans faint. Continuous tracking of CBF by transcranial Doppler-determined cerebral blood velocity ( Vmean) and near-infrared spectroscopy-determined cO2Hb contribute to understanding the cerebrovascular adjustments to postural stress; e.g., MAP does not necessarily reflect the cerebrovascular phenomena associated with (pre)syncope. CA may be interpreted as a frequency-dependent phenomenon with attenuated transfer of oscillations in MAP to Vmeanat low frequencies. The clinical implication is that CA does not respond to rapid changes in MAP; e.g., there is a transient fall in Vmeanon standing up and therefore a feeling of lightheadedness that even healthy humans sometimes experience. In subjects with recurrent vasovagal syncope, dynamic CA seems not different from that of healthy controls even during the last minutes before the syncope. Redistribution of cardiac output may affect cerebral perfusion by increased cerebral vascular resistance, supporting the view that cerebral perfusion depends on arterial inflow pressure provided that there is a sufficient cardiac output.

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