3 Nehb Precordial Leads Anterior, Dorsalis and Inferior Allow Accurate Diagnostics of Different Heart Conditions

NCT00623896 | Unknown

• 1 other identifier: 174/07
• Study Type: observational
• Target: 100
• Locations: 1 country
• Sites: 1

Brief Summary

The method of ECG recording with the use of three bipolar leads A (anterior), D dorsalis) and J (or I - inferior) was introduced in 1938 by German electrophysiologist W. Nehb. Being positioned on the chest in the immediate proximity to the heart, and being aligned to the anatomic position of the heart, these leads are very sensitive and allow accurate diagnostics of different heart conditions. All the active leads are placed on anterolateral plane of the chest wall requiring little anatomical window making this technique convenient for express diagnostics using compact electrocardiographic devices without any loss of valuable information. Active electrodes are located on the chest in the following order: 1st- red standard electrode placed in the second intercostal space to the right from sternum corresponding to V1 for standard 12-lead ECG recording, 2nd- green standard lead placed in the position corresponding to V4; 3rd- yellow in the position V7. Then ECG recorded as if in the I standard lead would be defined as Nehb's D, which records the potential on the posterior left ventricle wall; II standard lead would produce Nehb's A which corresponds to the potential on the anterior wall of the left ventricle, and III standard lead would record Nehb's J, which reflects the potential on the diaphragmatic surface of heart. Been simple and informative, this ECG recording modality may be applicable for usage with compact portable cardiographer devices for express diagnosis in different situations and may allow faster and more adequate outpatient response in the case of emergencies. Nehb 3 leads ECG can provide the clinician with portable, reliable, comprehensive and constant ECG monitoring and by this facilitate rapid diagnosis and treatment of STEMI.

Conditions

Acute Myocardial Infarction With ST Segment Elevation

Keywords

Nehb; ST Elevation Myocardial Infarcton; STEMI; ECG

Outcome Measures

Primary Outcomes (1)

• Evidence of ST Elevations in Nehb Tracing in all patients with determined STEMI in Standard 12-leads ECG.

  On patients' admition to EMS/ICCU

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

All STEMI Patients admitted to ICCU during the study period with ST elevations presenting on first 12 lead ECG performed on admition.

You may qualify if:

• Age ≥ 18 years
• ST elevation in more than 2 contiguous leads (\> 1 mV in limb leads \& V5-V6; more than 2 mm in V1-V4)
• Complains of chest, neck, jaw, arm, epigastric or back pain or dyspnea
• Patients directly transferred to the coronary care unit.

You may not qualify if:

• Unconscious patients
• Unwillingness to participate in the study
• Presence of LBBB

Sponsors & Collaborators

• Assaf-Harofeh Medical Center: lead

Study Sites (1)

Assaf Harofeh Medical Center Intensive Coronary Care Unit

Ẕerifin, 73000, Israel

RECRUITING

Related Publications (1)

• Nehb W. Zur Standardisierung der Brustwandableitungen des Elektrokardiogrammen. Kin. Wochenschz. 17 (1938):1807-1811.// Pollock, P. A comparison of Nehb's bipolar chest leads and the standard 12-lead electrocardiogram in cases of myocardial infarction. American Heart Journal, Research Assistant in Medicine. (1955) 68-71.// De Luca et al: Time Delay to Treatment and Mortality in Primary Angioplasty for Acute Myocardial Infarction: Every Minute of Delay Counts. Circulation 109 (2004): 1224// Atar et al: Electrocardiographic Diagnosis of ST-elevation Myocardial Infarction. Cardiol Clin 24 (2006) 343-365// V. N. Dhruva et al: ST-Segment Analysis Using Wireless Technology in Acute Myocardial Infarction (STAT-MI) Trial J. Am. Coll. Cardiol. 2007;50;509-513//

  BACKGROUND

MeSH Terms

Conditions

ST Elevation Myocardial Infarction

Condition Hierarchy (Ancestors)

Myocardial Infarction; Myocardial Ischemia; Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Infarction; Ischemia; Pathologic Processes; Pathological Conditions, Signs and Symptoms; Necrosis

Study Officials

• Ilya Litovchik, MD

  Assaf-Harofeh Medical Center

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Ilya Litovchik, MD

CONTACT

+972577345900; ilitovchik@gmail.com

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER GOV

Study Record Dates

• First Submitted: February 17, 2008
• First Posted: February 26, 2008
• Study Start: June 1, 2007
• Primary Completion: May 1, 2008
• Study Completion: August 1, 2008
• Last Updated: February 26, 2008

Record last verified: 2007-06

Locations

IL (1)