{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T10:40:36Z","timestamp":1789728036581,"version":"4.0.1"},"reference-count":40,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T00:00:00Z","timestamp":1755648000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.mdpi.com"],"crossmark-restriction":true},"short-container-title":["Life"],"abstract":"<jats:p>Background: Severe sepsis and septic shock remain major contributors to ICU mortality. Polymyxin B hemoperfusion (PMX-HP) has been widely adopted as adjunctive therapy in Asian ICUs for endotoxemia, but its real-world effectiveness and prognostic factors remain uncertain, especially in high Gram-negative settings. Methods: This retrospective cohort study included 64 adult patients with severe sepsis or septic shock who received at least one session of PMX-HP in a 25-bed tertiary medical ICU in Taiwan between July 2013 and December 2019. Demographic, clinical, microbiological, and treatment data were extracted. The primary outcome was 28-day mortality. Prognostic factors were analyzed using logistic regression. Results: The mean age was 66.1 \u00b1 12.3 years; 67.2% were male. Pneumonia (29.7%) and intra-abdominal infection (18.8%) were the most common sources of sepsis, with E. coli and K. pneumoniae as leading pathogens. Median APACHE II score at ICU admission was 26 (IQR 21\u201332), and 79.7% received two PMX-HP sessions. The 28-day mortality rate was 46.9%, with ICU and hospital mortality both 53.1%. Non-survivors were older, had higher APACHE II scores, and more frequent use of continuous renal replacement therapy (CRRT). Positive changes in vasoactive-inotropic score (VIS) after PMX-HP were also more common among non-survivors. Multivariate analysis identified advanced age, higher APACHE II score, and CRRT requirement as independent predictors of mortality. Conclusions: In this real-world Asian ICU cohort, PMX-HP was used mainly for severe cases with a high disease burden and Gram-negative predominance. Despite its frequent use, overall mortality remained high. Prognosis was primarily determined by underlying disease severity, organ dysfunction (especially renal failure), and persistent hemodynamic instability. In this high-severity cohort, mortality appeared to be primarily driven by baseline organ dysfunction and persistent hemodynamic instability; PMX-HP session number or sequencing showed no association with survival. Given the absence of a contemporaneous non-PMX-HP control group, mortality observations in this cohort cannot be causally attributed to PMX-HP and should be interpreted with caution as hypothesis-generating rather than definitive evidence of efficacy. Further multicenter studies are needed to clarify the optimal role of PMX-HP in modern sepsis management.<\/jats:p>","DOI":"10.3390\/life15081317","type":"journal-article","created":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T07:50:46Z","timestamp":1755676246000},"page":"1317","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Real-World Outcomes and Prognostic Factors of Polymyxin B Hemoperfusion in Severe Sepsis and Septic Shock: A Seven-Year Single-Center Cohort Study from Taiwan"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-8179-0486","authenticated-orcid":false,"given":"Wei-Hung","family":"Chang","sequence":"first","affiliation":[{"name":"Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8251-3808","authenticated-orcid":false,"given":"Ting-Yu","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan"},{"name":"Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li-Kuo","family":"Kuo","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1007\/s00134-021-06506-y","article-title":"Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2021","volume":"47","author":"Evans","year":"2021","journal-title":"Intensive Care Med."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"304","DOI":"10.1007\/s00134-017-4683-6","article-title":"Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016","volume":"43","author":"Rhodes","year":"2017","journal-title":"Intensive Care Med."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"801","DOI":"10.1001\/jama.2016.0287","article-title":"The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3)","volume":"315","author":"Singer","year":"2016","journal-title":"JAMA"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1478","DOI":"10.1001\/jama.2020.2717","article-title":"Prevalence and outcomes of infection among patients in intensive care units in 2017","volume":"323","author":"Vincent","year":"2020","journal-title":"JAMA"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1056\/NEJMp1707170","article-title":"Recognizing sepsis as a global health priority\u2014A WHO resolution","volume":"377","author":"Reinhart","year":"2017","journal-title":"N. 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