xml: <clinical_study>
    <!-- This xml conforms to an XML Schema at:
      https://clinicaltrials.gov/ct2/html/images/info/public.xsd -->
    <required_header>
      <download_date>ClinicalTrials.gov processed this data on September 20, 2023</download_date>
      <link_text>Link to the current ClinicalTrials.gov record.</link_text>
      <url>https://clinicaltrials.gov/ct2/show/NCT06017206</url>
    </required_header>
    <id_info>
      <org_study_id>ChinaPLAGH301IOH</org_study_id>
      <nct_id>NCT06017206</nct_id>
    </id_info>
    <brief_title>Intraopertive Hypotension and Postoperative Cardiovascular Complications Among Chinese Elderly Patients Undergoing Oncardiac Surgery : a Retrospective Cohort Study</brief_title>
    <official_title>Intraopertive Hypotension and Postoperative Cardiovascular Complications Among Chinese Elderly Patients Undergoing Oncardiac Surgery : a Retrospective Cohort Study</official_title>
    <sponsors>
      <lead_sponsor>
        <agency>Hao Li</agency>
        <agency_class>Other</agency_class>
      </lead_sponsor>
    </sponsors>
    <source>Chinese PLA General Hospital</source>
    <brief_summary>
      <textblock>
        To explore the relationship of intraoperative hypotension and perioperative cardiovascular&#xD;
        complications in elderly noncardiac surgical patients&#xD;
      </textblock>
    </brief_summary>
    <overall_status>Completed</overall_status>
    <start_date type="Actual">February 1, 2012</start_date>
    <completion_date type="Actual">May 31, 2023</completion_date>
    <primary_completion_date type="Actual">August 31, 2019</primary_completion_date>
    <study_type>Observational</study_type>
    <has_expanded_access>No</has_expanded_access>
    <study_design_info>
      <observational_model>Cohort</observational_model>
      <time_perspective>Retrospective</time_perspective>
    </study_design_info>
    <primary_outcome>
      <measure>postoperative cardiovascular complications</measure>
      <time_frame>2012-1~2019-8</time_frame>
    </primary_outcome>
    <enrollment type="Actual">35262</enrollment>
    <condition>Hypotension</condition>
    <eligibility>
      <study_pop>
        <textblock>
          age ≥65 years old patients&#xD;
        </textblock>
      </study_pop>
      <sampling_method>Non-Probability Sample</sampling_method>
      <criteria>
        <textblock>
          Inclusion Criteria:&#xD;
  &#xD;
            -  Patients over 65 years&#xD;
  &#xD;
            -  Undergoing general anesthesia&#xD;
  &#xD;
            -  Inpatients who had noncardiac surgery between January 1, 2012 and August 31, 2019&#xD;
  &#xD;
          Exclusion Criteria:&#xD;
  &#xD;
            -  ASA grade V&#xD;
  &#xD;
            -  Low-risk surgery (hysteroscopic and body surface surgery)&#xD;
  &#xD;
            -  Length of surgery ≤30 min&#xD;
  &#xD;
            -  Short operation interval (less than 3 days between procedures)&#xD;
  &#xD;
            -  Without intraoperative blood pressure value at 30s intervals&#xD;
  &#xD;
            -  Missing data on patient characteristics.&#xD;
        </textblock>
      </criteria>
      <gender>All</gender>
      <minimum_age>65 Years</minimum_age>
      <maximum_age>90 Years</maximum_age>
      <healthy_volunteers>No</healthy_volunteers>
    </eligibility>
    <verification_date>August 2023</verification_date>
    <study_first_submitted>June 28, 2023</study_first_submitted>
    <study_first_submitted_qc>August 24, 2023</study_first_submitted_qc>
    <study_first_posted type="Actual">August 30, 2023</study_first_posted>
    <last_update_submitted>August 24, 2023</last_update_submitted>
    <last_update_submitted_qc>August 24, 2023</last_update_submitted_qc>
    <last_update_posted type="Actual">August 30, 2023</last_update_posted>
    <responsible_party>
      <responsible_party_type>Sponsor-Investigator</responsible_party_type>
      <investigator_affiliation>Chinese PLA General Hospital</investigator_affiliation>
      <investigator_full_name>Hao Li</investigator_full_name>
      <investigator_title>associate chief physician</investigator_title>
    </responsible_party>
    <condition_browse>
      <!-- CAUTION:  The following MeSH terms are assigned with an imperfect algorithm            -->
      <mesh_term>Hypotension</mesh_term>
    </condition_browse>
    <!-- Results have not yet been posted for this study                                          -->
  </clinical_study>
  
  
text: download date: ClinicalTrials.gov processed this data on September 20, 2023
  link text: Link to the current ClinicalTrials.gov record.
  url: https://clinicaltrials.gov/ct2/show/NCT06017206
  org study id: ChinaPLAGH301IOH
  nct id: NCT06017206
  lead sponsor: 
  To explore the relationship of intraoperative hypotension and perioperative cardiovascular
        complications in elderly noncardiac surgical patients
  observational model: Cohort
  time perspective: Retrospective
  measure: postoperative cardiovascular complications
  time frame: 2012-1~2019-8
  study pop: 
  sampling method: Non-Probability Sample
  criteria: 
  gender: All
  minimum age: 65 Years
  maximum age: 90 Years
  healthy volunteers: No
  responsible party type: Sponsor-Investigator
  investigator affiliation: Chinese PLA General Hospital
  investigator full name: Hao Li
  investigator title: associate chief physician
  mesh term: Hypotension