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Study · Non-randomized trial · n = 6 · 1995

17 results

Short-term effects of methylene blue on hemodynamics and gas exchange in humans with septic shock.

Gachot B, Bedos JP, Veber B, Wolff M, Regnier B

Intensive care medicine1 Dec 1995Cited by 72 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study17

17 results from studies that gave the peptide. 17 results from people.

  1. 01HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, methylene blue increased mean arterial pressure compared with baseline.

    In plain wordsMethylene blue increased mean blood pressure compared with baseline in patients with septic shock.

    Outcome
    IncreaseMean arterial pressure
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood pressure · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Mean arterial pressure
    69.7 mmHg
    Before methylene blue (+/- 4.5)
    Mean arterial pressure
    83.7 mmHg
    20 min after infusion (+/- 5.1)

    Source sentences

    Summary
    Methylene blue increased the mean arterial pressure from 69.7 +/- 4.5 to 83.7 +/- 5.1 mmHg (p = 0.028) and the mean pulmonary artery pressure, from 34.3 +/- 7.2 to 38.7 +/- 8.0 mmHg (p = 0.023).
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  2. 02HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, methylene blue increased mean pulmonary artery pressure compared with baseline.

    In plain wordsMethylene blue increased lung artery pressure compared with baseline in patients with septic shock.

    Outcome
    IncreaseMean pulmonary artery pressure
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood pressure · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Mean pulmonary artery pressure
    34.3 mmHg
    Before methylene blue (+/- 7.2)
    Mean pulmonary artery pressure
    38.7 mmHg
    20 min after infusion (+/- 8.0)

    Source sentences

    Summary
    Methylene blue increased the mean arterial pressure from 69.7 +/- 4.5 to 83.7 +/- 5.1 mmHg (p = 0.028) and the mean pulmonary artery pressure, from 34.3 +/- 7.2 to 38.7 +/- 8.0 mmHg (p = 0.023).
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  3. 03HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, methylene blue increased systemic vascular resistance index compared with baseline.

    In plain wordsMethylene blue increased blood vessel resistance compared with baseline in patients with septic shock.

    Outcome
    IncreaseSystemic vascular resistance index
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Vascular function · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Systemic vascular resistance index
    703.1 dyne.s.cm(-5).m(-2)
    Before methylene blue (+/- 120.6)
    Systemic vascular resistance index
    903.7 dyne.s.cm(-5).m(-2)
    20 min after infusion (+/- 152.2)

    Source sentences

    Summary
    Systemic vascular resistance index was increased from 703.1 +/- 120.6 to 903.7 +/- 152.2 dyne.s.cm(-5).m(-2) (p = 0.028) and pulmonary vascular resistance index, from 254.6 +/- 96.9 to 342.2 +/- 118.9 dyne.s.cm(-5) .m(-2) (p = 0.027).
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  4. 04HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, methylene blue increased pulmonary vascular resistance index compared with baseline.

    In plain wordsMethylene blue increased lung blood vessel resistance compared with baseline in patients with septic shock.

    Outcome
    IncreasePulmonary vascular resistance index
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Vascular function · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Pulmonary vascular resistance index
    254.6 dyne.s.cm(-5) .m(-2)
    Before methylene blue (+/- 96.9)
    Pulmonary vascular resistance index
    342.2 dyne.s.cm(-5) .m(-2)
    20 min after infusion (+/- 118.9)

    Source sentences

    Summary
    Systemic vascular resistance index was increased from 703.1 +/- 120.6 to 903.7 +/- 152.2 dyne.s.cm(-5).m(-2) (p = 0.028) and pulmonary vascular resistance index, from 254.6 +/- 96.9 to 342.2 +/- 118.9 dyne.s.cm(-5) .m(-2) (p = 0.027).
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  5. 05HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, methylene blue decreased the PaO2/FIO2 ratio compared with baseline.

    In plain wordsMethylene blue reduced the blood oxygen to inhaled oxygen ratio compared with baseline in patients with septic shock.

    Outcome
    DecreasePaO2/FIO2 ratio
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Respiratory function · Respiratory
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    PaO2/FIO2
    229.2 mmHg
    Before methylene blue (+/- 54.4)
    PaO2/FIO2
    162.2 mmHg
    20 min after infusion (+/- 44.1)

    Source sentences

    Summary
    The PaO2/FIO2 decreased from 229.2 +/- 54.4 to 162.2 +/- 44.1 mmHg (p = 0.028), without significant modification of intrapulmonary shunting.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  6. 06HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, intrapulmonary shunting did not change significantly after methylene blue.

    In plain wordsBlood flow bypassing lung oxygen exchange did not change significantly from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeIntrapulmonary shunting
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Respiratory function · Respiratory
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    The PaO2/FIO2 decreased from 229.2 +/- 54.4 to 162.2 +/- 44.1 mmHg (p = 0.028), without significant modification of intrapulmonary shunting.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  7. 07HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, heart rate remained essentially unchanged after methylene blue.

    In plain wordsHeart rate remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeHeart rate
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Heart function · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  8. 08HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, cardiac index remained essentially unchanged after methylene blue.

    In plain wordsHeart pumping output relative to body size remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeCardiac index
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Heart function · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  9. 09HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, right atrial pressure remained essentially unchanged after methylene blue.

    In plain wordsRight heart filling pressure remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeRight atrial pressure
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Heart function · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  10. 10HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, oxygen delivery remained essentially unchanged after methylene blue.

    In plain wordsOxygen delivery remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeOxygen delivery
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood oxygenation and oxygen transport · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  11. 11HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, oxygen consumption remained essentially unchanged after methylene blue.

    In plain wordsOxygen consumption remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeOxygen consumption
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood oxygenation and oxygen transport · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  12. 12HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, oxygen extraction remained essentially unchanged after methylene blue.

    In plain wordsOxygen extraction remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeOxygen extraction
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood oxygenation and oxygen transport · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  13. 13HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, arterial lactate remained essentially unchanged after methylene blue.

    In plain wordsArterial lactate remained essentially unchanged from baseline after methylene blue in patients with septic shock.

    Outcome
    No significant changeArterial lactate
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Metabolic pathways and metabolomics · Metabolic and weight
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    Heart rate, cardiac index, right atrial pressure, DO2, VO2, oxygen extraction and arterial lactate were essentially unchanged.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  14. 14HumanNon-randomized trialEfficacy outcome

    In patients with septic shock, arterial pressure returned to baseline in 2-3 h after methylene blue.

    In plain wordsBlood pressure returned to baseline after methylene blue in patients with septic shock.

    Outcome
    Not applicableArterial pressure return to baseline
    Study

    n = 6

    Comparator
    Baseline
    Outcome group
    Blood pressure · Cardiovascular
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Time to return to baseline arterial pressure
    2 to 3 h
    After methylene blue

    Source sentences

    Summary
    Sequential measurements of arterial pressure demonstrated a return to baseline level in 2-3 h.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  15. 15HumanNon-randomized trialSafety outcome

    Among septic shock patients given methylene blue, all but one died, three in shock and two in multiple organ failure.

    In plain wordsAll but one septic shock patient given methylene blue died.

    Outcome
    Not applicableDeaths
    Study

    n = 6

    Outcome group
    Mortality · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Source sentences

    Summary
    All but one patients died, three in shock and two in multiple organ failure.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  16. 16HumanNon-randomized trialSafety outcome

    Among septic shock patients given methylene blue, three died in shock.

    In plain wordsThree septic shock patients given methylene blue died in shock.

    Outcome
    Not applicableDeaths in shock
    Study

    n = 6

    Outcome group
    Mortality · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Deaths in shock
    3 patients
    Septic shock patients given methylene blue

    Source sentences

    Summary
    All but one patients died, three in shock and two in multiple organ failure.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).
  17. 17HumanNon-randomized trialSafety outcome

    Among septic shock patients given methylene blue, two died in multiple organ failure.

    In plain wordsTwo septic shock patients given methylene blue died in multiple organ failure.

    Outcome
    Not applicableDeaths in multiple organ failure
    Study

    n = 6

    Outcome group
    Mortality · Whole body
    Studied dose
    3 mg kg(-1) · intravenousAs given in this study (human).

    Measurements

    Deaths in multiple organ failure
    2 patients
    Septic shock patients given methylene blue

    Source sentences

    Summary
    All but one patients died, three in shock and two in multiple organ failure.
    3 context sentences
    Summary · context
    A prospective, open, single-dose study.
    Summary · context
    Six patients with severe septic shock.
    Summary · context
    Complete hemodynamic values were recorded before and 20 min after the infusion of intravenous MB (3 mg kg(-1)).

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    14 Oct 2026, 05:02 UTC

    Study results updated

  2. Version 1

    14 Oct 2026, 01:46 UTC

    First added · source update from Europe PMC

Subjects

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