SARS-CoV-2 (COVID-19) PCR cycle threshold: can it help in the timing of urgent cardiac surgery?

Background: The COVID-19 pandemic has resulted in a significant reduction in urgent cardiac surgery due to concerns about safety for both patients and care givers. The timing of safe cardiac surgery is yet to be clarified in the setting of COVID-19 diagnosis.

Methods: Due to the urgency of the cardiac conditions on presentation, we have operated on four patients who exhibited the spectrum of COVID-19 disease from asymptomatic to severe COVID-19 pneumonia. With the evolving knowledge about SARS-CoV-2 and its genetic determinants as well as the cycle threshold levels obtained from real-time reverse transcription polymerase chain reaction, we have attempted to develop a strategy to deal with these patients.

Results: All four patients underwent urgent cardiac surgery following a thorough evaluation and multidisciplinary team approach with guidance based on the virus cycle threshold values obtained by reverse transcription polymerase chain reaction.

Conclusion: We have shown that, with thorough preparations, consideration of the significance of the cycle threshold obtained on reverse transcription polymerase chain reaction and meticulous timing, COVID-19 diagnosed patients may undergo open heart surgery safely.