Page last updated: 2024-11-04

tetracaine and Methemoglobinemia

tetracaine has been researched along with Methemoglobinemia in 18 studies

Tetracaine: A potent local anesthetic of the ester type used for surface and spinal anesthesia.
tetracaine : A benzoate ester in which 4-N-butylbenzoic acid and 2-(dimethylamino)ethanol have combined to form the ester bond; a local ester anaesthetic (ester caine) used for surface and spinal anaesthesia.

Methemoglobinemia: The presence of methemoglobin in the blood, resulting in cyanosis. A small amount of methemoglobin is present in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function reversibly as an oxygen carrier. Methemoglobinemia may be due to a defect in the enzyme NADH methemoglobin reductase (an autosomal recessive trait) or to an abnormality in hemoglobin M (an autosomal dominant trait). (Dorland, 27th ed)

Research Excerpts

ExcerptRelevanceReference
"Acquired methemoglobinemia is a rare but severe condition associated with oxidizing stressors, most notably medications."5.33Methemoglobinemia and acute hemolysis after tetracaine lozenge use. ( Azoulay, E; Darmon, M; Lavergne, S; Levy, V, 2006)
"A 2-month-old infant developed severe methemoglobinemia following topical pharyngeal application of a common benzocaine containing agent ( Cetacaine )."3.67Infantile methemoglobinemia induced by a topical anesthetic, Cetacaine. ( Seibert, JJ; Seibert, RW, 1984)
"Acquired methemoglobinemia is a rare but severe condition associated with oxidizing stressors, most notably medications."1.33Methemoglobinemia and acute hemolysis after tetracaine lozenge use. ( Azoulay, E; Darmon, M; Lavergne, S; Levy, V, 2006)

Research

Studies (18)

TimeframeStudies, this research(%)All Research%
pre-19905 (27.78)18.7374
1990's2 (11.11)18.2507
2000's9 (50.00)29.6817
2010's2 (11.11)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Guay, J1
Mogos, M1
Thangathurai, D1
Roffey, P1
Tay, C1
Whited, C1
Cohen, SM1
Raymond, P1
Byrne, MF1
Mitchell, RM1
Gerke, H1
Goller, S1
Stiffler, HL1
Golioto, M1
Branch, MS1
Jowell, PS1
Baillie, J1
Lunenfeld, E1
Kane, GC1
Paparella, S1
Lavergne, S1
Darmon, M1
Levy, V1
Azoulay, E1
Basra, SK1
Vives, MJ1
Reilly, MC1
Reiter, MF1
Kushins, LG1
Seibert, RW1
Seibert, JJ1
Sandza, JG1
Roberts, RW1
Shaw, RC1
Connors, JP1
Olson, ML1
McEvoy, GK1
Vessely, MB1
Zitsch, RP1
Khan, NA1
Kruse, JA1
Gregory, PJ1
Matsuda, K1
Friedman, PM1
Mafong, EA1
Friedman, ES1
Geronemus, RG1
Douglas, WW1
Fairbanks, VF1
Ferraro, L1
Zeichner, S1
Greenblott, G1
Groeger, JS1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Methemoglobin Levels in Generally Anesthetized Pediatric Dental Patients Receiving Prilocaine Versus Lidocaine[NCT01402869]91 participants (Actual)Interventional2011-08-31Completed
Antipruritic Effect of Topical Ketamine, Amitriptyline, and Lidocaine[NCT03096444]Phase 213 participants (Actual)Interventional2017-05-23Terminated (stopped due to Efficacy was not seen after interim analysis)
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Delta Methemoglobin Blood Level

Change in percentage of methemoglobin in blood from baseline level to peak level (NCT01402869)
Timeframe: From administration of local anesthetic or start of restorative procedures to time at which maximum methemoglobin blood level was documented during dental treatment for an average of 2 hours

Interventionpercentage of methemoglobin in blood (Mean)
Prilocaine2.73
Lidocaine0.78
No Local Anesthetic0.76

Peak Methemoglobin Blood Levels

The maximum percentage of methemoglobin in blood (NCT01402869)
Timeframe: Measured at 10 second intervals during dental treatment for an average of 2 hours

Interventionpercentage of methemoglobin in blood (Mean)
Prilocaine3.55
Lidocaine1.63
No Local Anesthetic1.60

Time to Peak Methemoglobin Blood Levels

The length of time between the administration of local anesthetic (Prilocaine and Lidocaine Groups) or start of restorative dental procedures (No local anesthetic Group) and the time at which the maximum methemoglobin blood level is observed. (NCT01402869)
Timeframe: Measured at 10 second intervals during dental treatment for an average of 2 hours

Interventionminutes (Mean)
Prilocaine62.73
Lidocaine57.50
No Local Anesthetic29.50

Peak Itch Intensity Between the Vehicle and Active Treatments (Individual and KeAmLi-combo).

"Peak itch intensity between the vehicle and 4 other active treatments (individual ketamine, amitriptyline, or lidocaine, and KeAmLi-combo). Itch intensity was measured on a 100mm scale visual analog scale for 10 minutes. 0 was weighted with no itch and 100 was weighted with most itch imaginable." (NCT03096444)
Timeframe: 10 minutes

InterventionIntensity score (Mean)
Topical KeAmLi Combo62.7
Topical Ketamine63.1
Topical Amitriptyline69.2
Topical Lidocaine65.8
Topical Vehicle61.9

Mechanical Thresholds (Mechanical Detection and Pain).

Assess mechanical detection and pain thresholds using von Frey filaments stimulators (measured in force mN) to calculate the final threshold as the geometric mean of five series of ascending and descending stimuli. (NCT03096444)
Timeframe: 5 minutes

,,,,
InterventionmN (Mean)
Mechanical Detection ThresholdMechanical Pain Threshold
Topical Amitriptyline3.573423965152.4768146
Topical KeAmLi Combo3.519376956152.3293608
Topical Ketamine3.464204768135.9
Topical Lidocaine3.546037659126.9
Topical Vehicle3.525692637148.7138273

Thermal Threshold Detection (Warmth and Heat Pain)

Two standardized quantitative sensory tests are performed to measure warmth detection threshold (assesses the threshold of which warmth sensation is first detected) and heat pain threshold (assesses the threshold at which heat pain sensation is first detected). Measured in change in celsius. (NCT03096444)
Timeframe: 3 minutes

,,,,
InterventionDegrees celsius (Mean)
Warm Detection ThresholdHeat Pain Threshold
Topical Amitriptyline33.940.0
Topical KeAmLi Combo33.639.8
Topical Ketamine34.040.0
Topical Lidocaine33.739.4
Topical Vehicle33.839.7

Reviews

4 reviews available for tetracaine and Methemoglobinemia

ArticleYear
Methemoglobinemia related to local anesthetics: a summary of 242 episodes.
    Anesthesia and analgesia, 2009, Volume: 108, Issue:3

    Topics: Adolescent; Adult; Age Factors; Aged; Aged, 80 and over; Anemia; Anesthetics, Local; Benzocaine; Chi

2009
Topical anesthetic sprays directly associated with a serious, sometimes fatal adverse drug reaction: methemoglobinemia.
    Journal of emergency nursing, 2005, Volume: 31, Issue:5

    Topics: Administration, Topical; Aerosols; Anesthetics, Local; Benzocaine; Dose-Response Relationship, Drug;

2005
Topical anesthetic-induced methemoglobinemia: a case report and review of the literature.
    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 1993, Volume: 108, Issue:6

    Topics: 4-Aminobenzoic Acid; Administration, Topical; Anesthetics, Local; Benzalkonium Compounds; Benzocaine

1993
Methemoglobinemia induced by topical anesthesia: a case report and review.
    The American journal of the medical sciences, 1999, Volume: 318, Issue:6

    Topics: 4-Aminobenzoic Acid; Aged; Anesthesia, Local; Anesthetics, Local; Benzalkonium Compounds; Benzocaine

1999

Other Studies

14 other studies available for tetracaine and Methemoglobinemia

ArticleYear
Cetacaine-induced complication during transesophageal echocardiography placement.
    Journal of cardiothoracic and vascular anesthesia, 2010, Volume: 24, Issue:4

    Topics: Aged, 80 and over; Benzalkonium Compounds; Benzocaine; Cetrimonium Compounds; Drug Combinations; Ech

2010
Nasal tetracaine spray-induced methemoglobinemia.
    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2012, Volume: 146, Issue:4

    Topics: Administration, Intranasal; Aged; Anesthetics, Local; Diagnosis, Differential; Female; Humans; Methe

2012
Bye-bye benzocaine?
    Nursing, 2003, Volume: 33, Issue:7

    Topics: 4-Aminobenzoic Acid; Anesthetics, Local; Benzalkonium Compounds; Benzocaine; Cetrimonium Compounds;

2003
The need for caution with topical anesthesia during endoscopic procedures, as liberal use may result in methemoglobinemia.
    Journal of clinical gastroenterology, 2004, Volume: 38, Issue:3

    Topics: 4-Aminobenzoic Acid; Administration, Topical; Aged; Anesthetics, Local; Benzalkonium Compounds; Benz

2004
Methemoglobinemia: sudden dyspnea and oxyhemoglobin desaturation after esophagoduodenoscopy.
    Respiratory care, 2004, Volume: 49, Issue:8

    Topics: 4-Aminobenzoic Acid; Administration, Topical; Anesthetics, Local; Benzalkonium Compounds; Benzocaine

2004
Methemoglobinemia and acute hemolysis after tetracaine lozenge use.
    Journal of critical care, 2006, Volume: 21, Issue:1

    Topics: Acute Disease; Administration, Oral; Adult; Anesthetics, Local; Diagnosis, Differential; Hemolysis;

2006
Methemoglobinemia after fiberoptic intubation in a patient with an unstable cervical fracture: a case report.
    Journal of spinal disorders & techniques, 2006, Volume: 19, Issue:4

    Topics: 4-Aminobenzoic Acid; Adult; Anesthetics, Local; Benzalkonium Compounds; Benzocaine; Cetrimonium Comp

2006
Infantile methemoglobinemia induced by a topical anesthetic, Cetacaine.
    The Laryngoscope, 1984, Volume: 94, Issue:6

    Topics: 4-Aminobenzoic Acid; Aminobenzoates; Anesthetics, Local; Benzalkonium Compounds; Benzocaine; Cetrimo

1984
Symptomatic methemoglobinemia with a commonly used topical anesthetic, cetacaine.
    The Annals of thoracic surgery, 1980, Volume: 30, Issue:2

    Topics: 4-Aminobenzoic Acid; Adult; Aminobenzoates; Anesthetics, Local; Benzalkonium Compounds; Benzocaine;

1980
Methemoglobinemia induced by local anesthetics.
    American journal of hospital pharmacy, 1981, Volume: 38, Issue:1

    Topics: 4-Aminobenzoic Acid; Adult; Aminobenzoates; Anesthetics, Local; Benzocaine; Cyanosis; Humans; Intuba

1981
Cetacaine spray-induced methemoglobinemia after transesophageal echocardiography.
    The Annals of pharmacotherapy, 2000, Volume: 34, Issue:9

    Topics: 4-Aminobenzoic Acid; Aged; Aged, 80 and over; Anesthetics, Local; Benzalkonium Compounds; Benzocaine

2000
Topical anesthetics update: EMLA and beyond.
    Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2001, Volume: 27, Issue:12

    Topics: Anesthetics, Local; Drug Combinations; Drug Costs; Gels; Humans; Lidocaine; Lidocaine, Prilocaine Dr

2001
Methemoglobinemia induced by a topical anesthetic spray (cetacaine).
    Chest, 1977, Volume: 71, Issue:5

    Topics: Administration, Topical; Aerosols; Aged; Aminobenzoates; Anesthesia, Local; Benzalkonium Compounds;

1977
Cetacaine-induced acute methemoglobinemia.
    Anesthesiology, 1988, Volume: 69, Issue:4

    Topics: 4-Aminobenzoic Acid; Acute Disease; Aged; Aminobenzoates; Benzalkonium Compounds; Benzocaine; Cetrim

1988