The diagnosis of healed inferior myocardial infarction (MI) in patients with left bundle branch block (LBBB) is difficult because there are no established criteria. To develop criteria, we retrospectively examined the electrocardiograms of 166 patients with complete LBBB who had either normal images (normals) or an isolated, unequivocal inferior MI on delayed stress thallium imaging. Diagnostic Q waves were defined as a significant Q or QS of at least 30-ms duration. Diagnostic T-wave inversion was defined as complete T inversion or biphasic waves with initial, predominantly negative deflection. The most useful diagnostic findings were in lead aVF, where a Q wave was present in 10 of 35 patients in the MI group compared with only 4 of 131 patients in the normal group (p <0.00001). Diagnostic T-wave inversion was noted in 23 of 35 patients in the MI group compared with 8 of 131 patients in the normal group (p <0.00001). The presence in lead aVF of either a diagnostic Q-wave or T-wave inversion was seen in 30 of 35 patients with inferior MI (sensitivity of 86%) compared with only 12 of 131 patients with uncomplicated LBBB (specificity 91%). Thus, these criteria are potentially useful for the diagnosis of inferior MI in patients with LBBB.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0002-9149(96)00669-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The efficacy of fractional CO laser with or without triamcinolone acetonide or 5-fluorouracil in the treatment of early postburn hypertrophic scars.
Lasers Med Sci
January 2025
Plastic Surgery Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
Hypertrophic scars (HTSs) are the result of an abnormal healing process resulting from burns and other severe traumas. The symptoms of that condition include skin irritation, discomfort, and itching. This study aimed to assess the efficacy of fractional carbon dioxide (CO) laser therapy alone or with triamcinolone or 5-fluorouracil (FU) in the treatment of early post-burn hypertrophic scars (HTSs) that develop during the first 6 months after the injury.
View Article and Find Full Text PDFThe efficiency of single-session photobiomodulation on healing of periapical bone lesions using CBCT: a randomized clinical trial.
Lasers Med Sci
January 2025
Faculty of Dentistry, Ain Shams University, Organization of African Unity Street, Cairo, Egypt, 11766.
As photobiomodulation is growing in the dental field the aim of this prospective, two-arm clinical trial was to assess the radiographic changes for chronic periapical bone lesions related to mandibular molars after primary root canal therapy with or without applying Diode laser on soft tissue. The samples were randomly divided into a Laser group and a mock laser (ML) group. Preoperative CBCT images were compared 12 months later with postoperative CBCT to gauge the changes in the volume of the bony lesion by two observers.
View Article and Find Full Text PDFBiomolecular Microneedle Initiates FeO/MXene Heterojunction-Mediated Nanozyme-Like Reactions and Bacterial Ferroptosis to Repair Diabetic Wounds.
Adv Sci (Weinh)
January 2025
Department of Urology, Institute of Urology, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
Reactive oxygen species (ROS) play a dual role in wound healing. They act as crucial signaling molecules and antimicrobial agents when present at moderate levels. However, excessive levels of ROS can hinder the healing process for individuals with diabetes.
View Article and Find Full Text PDFIschemic colitis presenting as a colonic mass: a case report and diagnostic challenges.
Front Med (Lausanne)
January 2025
Institute of Gastroenterology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China.
Ischemic colitis (IC) is a multifaceted condition that often manifests with nonspecific symptoms such as abdominal pain and bloody diarrhea, particularly in older adults with vascular risk factors. Diagnosis is supported by elevated levels of white blood cells, lactate, and C-reactive protein (CRP). Computed tomography (CT) imaging typically reveals wall thickening and fat stranding in watershed areas.
View Article and Find Full Text PDFArthroscopic Bone Grafting of Deep Acetabular Cysts in Hip Preservation Surgery: A Matched Case-Control Study.
Orthop J Sports Med
January 2025
Department of Orthopedics, School of Medicine, University of Colorado, Aurora, Colorado, USA.
Background: Acetabular subchondral cysts are commonly identified signs of joint degeneration and arthritis. This pathology is generally considered a relative contraindication for hip preservation surgery.
Purpose: To investigate the effect of arthroscopic bone grafting for the treatment of acetabular subchondral cysts.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!