{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T11:39:04Z","timestamp":1778499544999,"version":"3.51.4"},"reference-count":18,"publisher":"BMJ","issue":"9","license":[{"start":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T00:00:00Z","timestamp":1757548800000},"content-version":"unspecified","delay-in-days":10,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2025,8,22]]},"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:sec>\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>To compare in-hospital and long-term outcomes between culprit-only percutaneous coronary intervention (PCI) and multivessel PCI in patients with acute myocardial infarction complicated by cardiogenic shock and multivessel coronary artery disease.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Design<\/jats:title>\n                  <jats:p>Retrospective subgroup analysis of the multicentre Gulf-Cardiogenic Shock registry.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Setting<\/jats:title>\n                  <jats:p>13 tertiary care centres across six Gulf countries (Saudi Arabia, Qatar, Oman, UAE, Kuwait and Bahrain) between January 2020 and December 2022.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Participants<\/jats:title>\n                  <jats:p>961 patients with angiographically confirmed multivessel coronary artery disease who underwent PCI were included from the Gulf-Cardiogenic Shock registry. Patients were divided into culprit-only PCI group (n=792, 82.4%) and multivessel PCI group (n=169, 17.6%). Patients with single-vessel disease were excluded.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Interventions<\/jats:title>\n                  <jats:p>Patients underwent either culprit-only PCI (intervention limited to the culprit artery) or multivessel PCI (immediate intervention to both culprit and non-culprit arteries during the same procedure).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Primary and secondary outcome measures<\/jats:title>\n                  <jats:p>The primary outcome was in-hospital all-cause mortality. Secondary outcomes included reinfarction, cerebrovascular accident, major and minor bleeding events, target lesion revascularisation, target vessel revascularisation, hospital stay duration and freedom from major adverse cardiac and cerebrovascular events (MACCEs) at 6 and 12 months.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Hospital mortality was comparable between multivessel PCI and culprit-only PCI groups (43.2% vs 46.1%; p=0.493). Freedom from MACCE rates at 6 and 12 months were 62% and 46% for multivessel PCI versus 70% and 49% for culprit-only PCI, respectively (log-rank p=0.711). Subgroup analysis revealed that culprit-only PCI was associated with increased hospital mortality in patients older than 70 years (OR 1.55, 95% CI: 1.01 to 2.39). Multivariable analysis of the interaction between revascularisation strategy and the subgroups revealed that culprit vessel revascularisation was associated with increased mortality in patients with left main disease (OR: 1.99 (95% CI: 1.22 to 3.27), p=0.006) and left anterior descending lesions (OR: 1.54 (95% CI: 1.06 to 2.25), p=0.025).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>No statistically significant differences in hospital mortality or long-term MACCE-free survival were observed between culprit-only PCI and multivessel PCI strategies in patients with cardiogenic shock complicating acute myocardial infarction. However, patients older than 70 years may benefit from a multivessel PCI approach. These findings support current guideline recommendations favouring culprit-only PCI due to reduced procedural complexity while highlighting the need for individualised treatment strategies based on patient age and clinical factors. Further prospective randomised studies are needed to validate these age-specific findings and identify optimal patient selection criteria for each revascularisation strategy.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/bmjopen-2025-101843","type":"journal-article","created":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T06:00:40Z","timestamp":1757570440000},"page":"e101843","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Comparative outcomes of culprit-only versus complete revascularisation in cardiogenic shock complicating acute myocardial infarction: insights from the Gulf-Cardiogenic Shock registry"],"prefix":"10.1136","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7269-1195","authenticated-orcid":false,"given":"Amin","family":"Daoulah","sequence":"first","affiliation":[{"name":"Department of Cardiovascular Medicine, King Faisal Specialist Hospital and Research Centre, Jeddah, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3836-2897","authenticated-orcid":false,"given":"Shaber","family":"Seraj","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Baystate Medical Center, Springfield, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7678-5700","authenticated-orcid":false,"given":"Ahmed","family":"Elmahrouk","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, King Faisal Specialist Hospital and Research Centre, Jeddah, Saudi Arabia"},{"name":"Department of Cardiothoracic Surgery, Tanta University, Tanta, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0951-7287","authenticated-orcid":false,"given":"Amr A","family":"Arafat","sequence":"additional","affiliation":[{"name":"Department of Cardiothoracic Surgery, Tanta University, Tanta, Egypt"},{"name":"Adult Cardiac Surgery, Prince Sultan Cardiac Center, Riyadh, Saudi Arabia"},{"name":"Health Research Center, Ministry Of Defense Health Services, Riyadh, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0603-117X","authenticated-orcid":false,"given":"Prashanth","family":"Panduranga","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The Royal Hospital National Heart Center, Muscat, Oman"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0312-9910","authenticated-orcid":false,"given":"Wael","family":"Almahmeed","sequence":"additional","affiliation":[{"name":"Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6581-2574","authenticated-orcid":false,"given":"Abdulrahman","family":"Arabi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Hamad Medical Corporation, Doha, Qatar"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3514-2918","authenticated-orcid":false,"given":"Sultan","family":"Alobaikan","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, King Abdulaziz Medical City in Riyadh, Riyadh, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1278-8475","authenticated-orcid":false,"given":"Mohammed","family":"Al Shehri","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Armed Forces Hospitals Southern Region, Khamis Mushait, Saudi 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