• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

EFFECTS OF PERIOPERATIVE APNEIC EPISODES ON ARTERIAL OXYGEN SATURATION AND HEMODYNAMICS IN GERIATRIC PATIENTS

Research Project

Project/Area Number 10671445
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionTeikyo University

Principal Investigator

INADA Eiichi  TEIKYO UNIVERSITY MEDICAL SCHOOL, DEPARTMENT OF ANESTHESIOLOGY, PROFESSOR, 医学部, 教授 (40193552)

Co-Investigator(Kenkyū-buntansha) OHNO Taro  TEIKYO UNIVERSITY MEDICAL SCHOOL, DEPARTMENT OF ANESTHESIOLOGY, ASSISTANT, 医学部, 助手 (40266292)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1999: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1998: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsSPINALA ANESTHESIA / EPIDURAL ANESTHESIA / APNEA / MIDAZOLAM / PORPOFOL / HYPOXEMIA / CONTINUOUS POSITIVE AIRWAY PRESSURE / GERIATRIC PATIENT / 老人 / 鎮静
Research Abstract

PATIENTS UNDERGOING ELECTIVE LOWER ABDOMINAL OR LOWER EXTREMITY SURGERY UNDER REGIONAL ANESTHESIA STUDIED. CONTROL GROUP WAS CONSTITUED OF ADULATS AGE BELOW 65 YEARS OLD UNDERGOING THE SIMILAR SURGERY UNDER REGIONAL ANESTHESIA. AIRFLOW, CHEST MOVEMENT, PERCUTANEOUS OXYGEN SATURATION, HEART RATE, AND BLOOD PRESSURE WERE MEASURED DURING STUDY PERIOD.
CONTROL GROUP PATIENTS EITHER AGE BELOW 65 OR AGE EQUAL TO OR AGE OVER 65 HAD RARE EPISODES OF APNEIC EPISODES UNDER SPINAL ANESTHESIA. GERIATRIC PATIENTS (MEAN AGE OF 74.6 YEARS OLD) UNDER SPINAL ANESTHESIA HAD FREQUENT EPISODES OF OBSTRUCTIVE APNEA WITHIN 90 MINUTES AFTER ONLY 0.014±0.022 MG/KG (RANGE 0.5-1.5 MG) OF MIDAZOLAM. THESE APNEIC EPISODES WERE ASSOCIATED WITH HYPOXEMIA. HALF OF THE PATIENTS HAD THE LOWEST OXYGYEN SATURATION BELOW 90%. THESE APNEIC AND HYOXIC EPISODES WERE NOT ASSOCIATED WITH HEMODYNAMIC CHANGES.
CONTROL PATIENTS CONTROL GROUP PATIENTS EITHER AGE BELOW 65 OR AGE EQUAL TO OR AGE OVER 65 HAD RARE EPISODES OF APNEIC EP … More ISODES UNDER EPIDURAL ANESYHESIA. ADULT PATIENTS UNDER EPIDURAL ANESTHSIA SEDATED WITH PROPOFOL INFUSION AT 2 MG/KG/HR HAD NO EPISODES OF OBSTRUCTIVE APNEA. HOWEVER, GERIATRIC PATIENTS (MEAN AGE OF 74.1 YEARS OLD) UNDER EPIDURAL ANESTHESA SEDATED WITH PROPOFOL INFUTION AT THE SAME RATE HAD MORE FREQUENT EPISODES OF OBSTRUCTIVE APNEA ASSOCIATED WITH OXYGEN DESATURATION. ONE-THIRD OF THE PATINS HAD THE LOWEST OXYGYEN SATURATION BELOW 90%. THESE APNEIC AND HYOXIC EPISODES WERE NOT ASSOCIATED DESATURATION. ONE-THIRD OF THE PATINES HAD THE LOWEST OXYGYEN SATURATION BELOW 90%. THESE APNEIC AND HYOXIC EPISODES WERE NOT ASSOCIATED WITH HEMODYNAMIC CHANGES.
THE OBSTRUCTIVE APNEA AND OXYGEN DESATURATION WAS AMELIOIATED BY CONTINUOUS POSITIVE AIRWAY PRESSURE.
IN CONCLUSION, GERIATRIC PATIENS UNDER EITHER SPINAL OR EPIDURAL ANESTHESIA UP TO T10 LEVEL WERE VERY SENSIYIVE TO RESPIRATORY DEPRESSANT EFFECTS OF LOW DOSE MIDAZOLAM OR PORPOFOL INFUSION. HEMODYNAMIC CHANGES WERE NOT A GOOD INDICATOR OF HYPOXEMIA UNDER REGIONAL ANESTHESIA. POSITIVE AIRWAY PRESSURE WAS EFFECTVE TO AIRWAY OBSTRUCTION AND OXYGEN SATURATIN WITH THESE SEDATIVE AGENTS. Less

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Inada E: "Respiratory depressant effects of propofol infusion for conscious seduction in geriatric patients under regional anesthesia"Anesthesiology. 89. A821 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Inada E: "A low dose midozolam causes apnea in geriatric patients under spinal anesthesia"Anesthesiology. 89. A822 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Inada E: "Effects of low doses of midazolam on respiration and oxygenation in geriatric patients under spinal anesthesia"老人病研究所紀要. 8. 22-27 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 稻田英一: "バランス麻酔-最近の進歩-"克誠堂. 162 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] INADAE, MIZUMOTO K, FUJIOKA S, ET AL.: "A LOW DOSE OF MIDAZOLAM CAUSES APNEA IN GERIATRIC PATIENTS UNDER SPINAL ANESTHESIA"ANESTHESIOLOGY. 89. A822 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] INADAE, MIZUMOTO K, FUJIOKA S, ET AL.: "RESPIRATORY DEPRESSANT EFFECTS OF PROPOFOL INFUSION FOR CONSCIOUS SEDATION IN GERIATRIC PATIENTS UNDER REGIONAL ANESTHESIA"ANESTHESIOLOGY. 89. A821 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] INADAE, OHNO T, FUNAYAMA T, ET AL.: "EFFECTS OF LOW DOSES OF MIDAZOLAM ON RESPIRATION AND OXYGENATION IN GERIATRIC PATIENTS UNDER SPINAL ANESTHESIA"BULLETIN OF INSTITUTION OF GERIATRIC DISEASES. 8. 22-27 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 稲田 英一: "Respiratory depressant effects of propofol infusion for conscious sedation in geriatric patients under pegional apesthesia"Anesthesiology. 89・3A. A821 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 稲田 英一: "A low dose midazolam causes apnea in geriatric patients under spinal anesthesia"Anesthesiology. 89・3A. A822 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 稲田 英一: "高齢者における低用量ミダゾラムの呼吸抑制"Journal of Anesthesia. 12・Suppl. 390 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 稲田 英一: "高齢者におけるプロポフォールを用いた鎮静中の呼吸抑制"Journal of Anesthesia. 12・Suppl. 391 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 稲田 英一: "Effects of low doses of midazolam on respiration and oxygenation in geriatric patients under spinal anesthesia"老人病研究所紀要. 8. 22-27 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] E.Inada: "Repiratory depressant effects of propofol infusion for conscious sedation in geriatric patients under regional anesthesia" Anesthesiology. 89・3A. A821 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] E.Inada: "A low dose of midazolam causes in geriatric patients under spinal anesthesia" Anesthesiology. 89・3A. A822 (1998)

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1998-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi