Table 4
Author, date and countryPatient groupStudy type (level of evidence)OutcomesKey resultsStudy weaknesses
Verma SP et al, 1989, UK36 male patients with acute LVF secondary to recent MI (<10 hours) in CCUPRCTLeft heart filling pressuresAll three groups reducedOnly 36 patients
IV v buccal v transdermal GTNCardiac outputNo reduction in any groupDifferent doses of buccal, IV and dermal GTN (based on previous studies)
BP3 patients had BP falls in buccal group but with no clinical deterioration
Average doses over 90 min: IV 12.9 mg, buccal 5 mg, dermal 20 mgIV dose individually titrated; buccal and dermal doses predetermined