How three cardiac procedures changed in the COVID era
PCI in New York
Before the pandemic, the cardiac catheterization laboratory at Mount Sinai Morningside Hospital in New York handled a monthly average of 140-150 PCIs, including 6-10 primary PCIs for ST-segment elevation myocardial infarction.
When electives were halted by the hospital in March and the City became the global epicenter for COVID-19, the cath lab went quiet. “Even though we were still able to do urgent cases or emergent cases, the case volume dropped tremendously,” said Jacqueline E. Tamis-Holland, MD, associate director of the cardiac catheterization laboratory and director of the interventional cardiology fellowship. “There weren’t many outpatients in our hospital … and by late March and through April, there wasn’t a single acute infarction.”
She and Tak W. Kwan, MD, director of the cardiac catheterization laboratory and professor of medicine at Icahn School of Medicine at Mount Sinai, New York, were prepared to move true STEMI patients into the cath lab for primary PCI without delay unless the staff or system were overrun.
That primary PCI should remain the first-line treatment for STEMI even in cases of confirmed or suspected COVID-19 was recommended by SCAI guidance issued in March and by a consensus statement released by the SCAI, ACC, and American College of Emergency Physicians in April – and “we were very much of the same frame of mind,” Dr. Tamis-Holland said.
Deciding which elective cases could not be delayed required a completely individualized approach, the cardiologists emphasized. Dr. Tamis-Holland had a few patients scheduled for elective PCI when the hold began, and “we spoke every few days or once a week in the beginning, then transitioned to once every 2 weeks,” she said. “With medical therapy and given that they were relatively sedentary, my patients did okay [with the delays].”
For subsequent patients, she considered their symptoms or stress test results. “If it’s someone who I’d [normally] wait until next week to schedule the cath, then we would wait 2 or 3 more weeks, or a month more with careful monitoring,” she said. “Certainly, there was a decrease in the number of abnormal stress tests that I referred to the cath lab during [the surge period].”
Dr. Kwan described one patient who had new-onset congestive heart failure in late March “with a markedly positive nuclear stress test.” The patient was monitored with twice-weekly telemedicine visits and office visits, and a cardiac catheterization was performed in early May as an urgent elective case. “He had severe three-vessel and left main disease,” he said. “Subsequently, [coronary artery bypass surgery] was done.”
There were no changes in the PCI procedure itself in terms of hospital stay (most elective cases at Mt. Sinai are same-day procedures) or in staffing, other than a ban on visiting students or residents. The most important changes during the surge – in addition to stocking enough personal protective equipment – concerned testing. Patients undergoing elective PCI are tested for the novel coronavirus 72 hours before the procedure, and rapid testing is performed in the emergency room for STEMI patients to determine patient disposition after the procedure.
“Until we have the results back we should treat all patients as if they are a patient under investigation or have COVID,” said Dr. Tamis-Holland, who helped develop emergency guidance on STEMI systems of care during the pandemic for the American Heart Association.
In early May, the hospital freed up additional space for cardiac care, allowing more “urgent-elective” PCIs to be done. Some patients were reluctant to proceed, the cardiologists said, because of a no-visitor policy. In mid-June, the hold on elective procedures was lifted, and around the same time, the hospital shifted to a one-visitor policy. Still, some patients opted to continue longer with medical therapy.
Patients need to feel comfortable, and “there is a lag time from the time everything opens up and when patients get their stress tests and their evaluations, and then arrive for PCI,” said Dr. Tamis-Holland.
By mid-July, the cardiologists were anticipating an increase in complications from infarctions among patients who “waited them out at home” – heart failure or mitral valve regurgitation, for instance – but, in their hospital at least, “we haven’t really seen that,” she added.
