{
  "abstract": "Background\n\nControlled hypotension is a widely adopted anesthetic method in shoulder arthroscopy to improve visual clarity. However, hypotension-related hypoperfusion may lead to postoperative acute kidney injury (AKI). The renal resistive index (RRI) is considered an effective and reliable parameter for identifying prerenal AKI. This study aimed to evaluate perioperative changes in RRI during shoulder arthroscopy with controlled hypotension.Methods\n\nFollowing ethics committee approval, 90 adult patients undergoing elective shoulder arthroscopy were prospectively assessed. Controlled hypotension was achieved by adjusting the intravenous remifentanil infusion (0.01-0.2 µg/kg/min). RRI was measured pre- and postoperatively in pain-free, hemodynamically and respiratory stable patients. AKI was defined according to the Kidney Disease: Improving Global Outcomes criteria.Results\n\nData from 65 patients were analyzed. The postoperative RRI values (mean ± SD: 0.683 ± 0.085) were significantly higher than the preoperative values (mean ± SD: 0.648 ± 0.077) (p < 0.001). The mean change in RRI (delta RRI), calculated as (postoperative RRI - preoperative RRI) / preoperative RRI, was 5.6%. Stage I AKI was observed in 3 patients (4.6%). Preoperative RRI showed a positive correlation with both age and Simple Postoperative AKI Risk (SPARK) score, and a negative correlation with baseline glomerular filtration rate. Postoperative RRI showed a positive correlation with age.Conclusions\n\nThe observed increase in RRI suggests that controlled hypotensive anesthesia during shoulder arthroscopy may affect renal perfusion. Perioperative RRI assessment may therefore serve as a tool to evaluate renal perfusion changes.Trial registration\n\nClinicalTrials.gov, TRN: NCT05945706, Registration date: 07 May 2023.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Anesthesiology and Reanimation, Ankara Etlik City Hospital, Ankara, Türkiye. ftmozkan_uzmdr@yahoo.com.",
    "Department of Anesthesiology and Reanimation, Ankara Etlik City Hospital, Ankara, Türkiye."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Fatma Ozkan Sipahioglu",
      "orcid": "0000-0002-9350-2653"
    },
    {
      "affs": [
        1
      ],
      "name": "Funda Atar"
    },
    {
      "affs": [
        1
      ],
      "name": "Merve Bayraktaroglu"
    },
    {
      "affs": [
        1
      ],
      "name": "Filiz Karaca Akaslan"
    },
    {
      "affs": [
        1
      ],
      "name": "Derya Ozkan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3q4rg36aty8cp.bib",
  "cited_by": 0,
  "doi": "10.1186/s12871-026-04196-x",
  "fulltext_url": "https://europepmc.org/articles/PMC13729579",
  "id": "3q4rg36aty8cp",
  "issns": [
    "1471-2253"
  ],
  "landing_url": "https://europepmc.org/article/MED/42972515",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research"
    ],
    [
      "openalex",
      "2727|Acute Kidney Injury Research"
    ]
  ],
  "openalex": "W7204597954",
  "pdf_url": "https://europepmc.org/articles/PMC13729579?pdf=render",
  "pmcid": "PMC13729579",
  "pmid": "42972515",
  "published": "2026-08-28",
  "publisher": "BMC",
  "ris": "https://research.draconitic.com/paper/3q4rg36aty8cp.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:20:44Z",
      "native_id": "MED:42972515",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42972515"
    },
    {
      "first_seen": "2026-11-07T12:22:19Z",
      "native_id": "PMC13729579",
      "source": "pmc",
      "url": "https://doi.org/10.1186/s12871-026-04196-x"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2727|Acute Kidney Injury Research",
      "subfield": "general"
    }
  ],
  "title": "Evaluation of renal resistive index in patients undergoing arthroscopic shoulder surgery with controlled hypotension.",
  "title_text": "Evaluation of renal resistive index in patients undergoing arthroscopic shoulder surgery with controlled hypotension.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:22:19Z",
  "url": "https://research.draconitic.com/paper/3q4rg36aty8cp",
  "venue": "BMC anesthesiology",
  "versions": []
}