PMID- 31482216 OWN - NLM STAT- MEDLINE DCOM- 20201026 LR - 20231205 IS - 1615-2573 (Electronic) IS - 0910-8327 (Linking) VI - 35 IP - 3 DP - 2020 Mar TI - Spontaneous coronary collateral recruitment in patients with recurrent ST elevation myocardial infarction (STEMI). PG - 291-296 LID - 10.1007/s00380-019-01493-z [doi] AB - The spontaneous recruitment of acute coronary collaterals in the setting of an ST elevation myocardial infarction (STEMI) is seen frequently in those patients undergoing primary percutaneous coronary intervention (pPCI) and is associated with improved clinical outcomes. However, it is unknown whether in patients who present with a recurrent STEMI, the degree of collateral recruitment remains the same as in the index procedure. We reviewed all patients presenting to our tertiary centre with a STEMI undergoing primary or rescue percutaneous coronary intervention (PCI) from July 2010 until December 2018. We identified patients who presented with a recurrent STEMI following their index procedure. We defined patients with poor collateral recruitment as Rentrop grade 0 or 1, whilst patients with robust collateral recruitment as Rentrop grade 2 or 3. Of the 1795 patients who were identified, there were 27 cases in 25 patients who presented with a repeat STEMI following their index procedure. The median time between cases was 12.8 days (IQR 2.3-589.5 days). Compared to the index case, there was no statistically significant difference in the degree of collateral recruitment in recurrent presentations (Z = - 0.378, p = 0.70). In those patients presenting more than 6 months following the index procedure, the median time between cases was 654.5 days (IQR 479.5-1151.9). There was no difference in the degree of collateral recruitment in recurrent presentations (Z = 0.000, p = 1.0). Cases which had poorer collateral recruitment in recurrent presentations were less likely to be current smokers (0% vs 50%, p < 0.001) and less likely to have diabetes (0% vs 27.3%, p < 0.05) The recruitment of spontaneous coronary collaterals remains constant in recurrent STEMI presentations suggesting an innate biological process rather than merely a manifestation of alteration of haemodynamic blood flow. Further investigations to identify these processes is required. FAU - Allahwala, Usaid K AU - Allahwala UK AUID- ORCID: 0000-0001-7178-4744 AD - Department of Cardiology, Royal North Shore Hospital, Reserve Rd, St. Leonards, Sydney, 2065, Australia. usaid.allahwala@gmail.com. AD - The University of Sydney, Sydney, Australia. usaid.allahwala@gmail.com. FAU - Weaver, James C AU - Weaver JC AD - Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia. AD - The University of New South Wales, Sydney, NSW, Australia. FAU - Bhindi, Ravinay AU - Bhindi R AD - Department of Cardiology, Royal North Shore Hospital, Reserve Rd, St. Leonards, Sydney, 2065, Australia. AD - The University of Sydney, Sydney, Australia. LA - eng PT - Journal Article DEP - 20190903 PL - Japan TA - Heart Vessels JT - Heart and vessels JID - 8511258 SB - IM MH - Acute Coronary Syndrome/diagnostic imaging/physiopathology/*therapy MH - Aged MH - *Collateral Circulation MH - *Coronary Circulation MH - Female MH - Humans MH - Male MH - Middle Aged MH - Percutaneous Coronary Intervention/*adverse effects MH - Recovery of Function MH - Recurrence MH - Retrospective Studies MH - Risk Factors MH - ST Elevation Myocardial Infarction/diagnostic imaging/physiopathology/*therapy MH - Time Factors MH - Treatment Outcome OTO - NOTNLM OT - Acute coronary syndrome OT - Collaterals OT - Coronary collaterals OT - Rentrop OT - STEMI EDAT- 2019/09/05 06:00 MHDA- 2020/10/27 06:00 CRDT- 2019/09/05 06:00 PHST- 2019/06/13 00:00 [received] PHST- 2019/08/23 00:00 [accepted] PHST- 2019/09/05 06:00 [pubmed] PHST- 2020/10/27 06:00 [medline] PHST- 2019/09/05 06:00 [entrez] AID - 10.1007/s00380-019-01493-z [pii] AID - 10.1007/s00380-019-01493-z [doi] PST - ppublish SO - Heart Vessels. 2020 Mar;35(3):291-296. doi: 10.1007/s00380-019-01493-z. Epub 2019 Sep 3.