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   OPHTHALMOLOGY

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Patient Information

General information about Holter monitoring.

About the service

MSO's digital Holter service is an Internet Enabled Holter system. It is the only one in existence that provides Heart Rate Variability (HRV) and continuous pulse Oxymetry monitoring.

HRV the variation and fluctuation of the heart rate in relation to the mean heart rate have been shown to be a function of cardio-respiratory physiology. It has been known for several decades that enhanced vagal tone has a salutary effect on the electro-physiologic properties of the ventricle to prevent the emergence of life-threatening ventricular arrhythmias in certain situations, particularly in post-infarction and diabetic patients. Hence, heart rate variability may offer information about sympathetic and parasympathetic autonomic function and could serve as a measure of risk stratification for serious cardiac arrhythmias and possible sudden cardiac death. Notably, continuous changes in the sympathetic-parasympathetic balance can be reflected in variations of the sinus rhythm that oscillate around the mean heart rate. The Heart-Guard Holter system from MSO has the ability to analyze HRV, employing both time and frequency domain measurements that quantify the fluctuations in the heart rate data. Quantified HRV has a prognostic capability for patients following MI for future ventricular arrhythmias or other cardiac events that may lead to premature death. A special report by Marek Malik published in Circulation Vol.93, No5, March 1, 1996-titeled : Heart Rate Variability, describes the standards of measurement, physiological interpretation and Clinical Use, was used as a guideline in the development of the Heart-Guard Holter Monitor.

Oxymetry measures oxygen saturation using a noninvasive Plathysmography probe. This is done by measuring light absorption of oxygenated hemoglobin and total hemoglobin in arterial blood. The Oxy Heart-Guard Holter provides the ability to measure two channels of ECG and an additional channel of the Oxymetry. patient exhibiting signs or symptoms of acute respiratory dysfunction such as:

• Tachypnea;
• Dyspnea;
• Cyanosis;
• Respiratory distress;
• Confusion;
• Hypoxia; or
• Severe chest pain.

Are good candidates to be monitored by the combined Holter and Oxymetry. An indication during the night of an ST depression and an associated depressed oxygen level is an immediate indication of sleep apnea, that requires additional sleep study and evaluation. CHF patients with such results need treatment usually with CPAP, to ensure relieve of the cardiac stress.

Physicians subscribing to MSO's service receive all the necessary equipment, and full analysis reporting by email or fax. Call us at (201) 670-9999 to sign up.

About our technology

The MSO Heart-Guard Holter Monitor System Model DR180+ provides the ultimate in accuracy for long term ambulatory monitoring. The DR180+ meets the strict AAMI EC-11/EC-38 standard for frequency response. Advanced filtering technology during the recording allows improved detection of both pacemaker spikes and narrow pediatric QRS complexes. This results in more accurate ECG reproduction for paced and pediatric patients. In addition, the optional true 12-lead and Oxymetry capabilities are unmatched in the Holter industry.

Over the twenty years of our Core Lab's activity, we have kept close track of continuous ECG monitoring devices. The DR180+ digital 12-lead Holter monitor combines 3-channel beat-to-beat Holter with high fidelity standard digital 12-lead ECGs every minute. Recorded simultaneously on a single time track, this provides a remarkable combination of ischemia, arrhythmia and related morphologic information for diagnostic or research purposes. This instrument is the gold standard for our laboratory, having been used in over 200 clinical sites worldwide for continuous monitoring research in acute MI patients."

The Heart-Guard Holter - Digital Recorder Features and Specifications:

Powerful, lightweight and easy to use, the Heart Guard has the features to meet all of your Holter recording needs. Using compact flash technology, the monitor can record up to 72 hours of data on a single, removable flash card. The recorder's large, built-in LCD allows you to enter patient data, check lead quality and review all channels of ECG during the hookup procedure so that you can make adjustments before the patient leaves your office. During the Holter test, the patient can use the simple keypad to easily enter activities and symptoms as they occur.

Advanced filtering technology during the recording allows improved detection of both pacemaker spikes and narrow pediatric QRS complexes. This results in more accurate ECG reproduction for paced and pediatric patients.

The Heart-Guard Features

• All-digital recording eliminates mechanical malfunctions and makes the Monitor more reliable than cassette recorders
  
• Removable digital memory (compact flash card) allows immediate reuse of the Monitor
  
• Electronic storage of patient identification number prevents confusion of patient records
  
• During hookup, LCD displays actual ECG, including pacemaker spikes, on all channels, eliminating the need for an ECG test block
  
• Pacemaker detection is standard
  
• LCD displays percent of battery life remaining
  
• Recorder can display in multiple languages
  
• 3-channel high resolution can be selected for pediatric patients
  
• LE software is included
  
• Options include:
  
  • True 12-lead, which meets the AAMI EC-11 standards
    
  • Oxymetry

Holter Unit Panel Screen	Feature Description
	Easy-to-use keypad allows the entry a Patient Identification number that is stored along with the patient's Holter recording.
	Built-in Patient Dairy eliminates the need for a written diary. Patients select activities or events from a customizable, easy-to-use list.
	Lead Quality is displayed for all Holter channels, allowing the verification of signal quality during the hook-up procedure.

Heart-Guard Specifications