|
| |
Vmed
Vet-Dop
Doppler Blood Pressure System
 The
Vet-Dop is designed for veterinarians to
screen for hypertension, to check blood pressure in surgery, to monitor
blood flow at the extremities during surgery and to check for intact blood vessels after
trauma and before amputation. The
non-invasive Doppler technique is the method of choice for measuring blood
pressure in animals weighing less than 15 pounds, especially cats.
Other methods, including monitors that use the oscillometric technique, are
not capable of detecting the smaller vessels with accurate results. The Vet-Dop
also works well on larger breeds and can detect blood flow at the base of
the tail in horses. The Vet-Dop is the Doppler of choice and preferred by experts
in the field of veterinary blood pressure measurement.
The
Vet-Dop has a high quality built-in speaker to clearly hear blood flow.
Stereo audio headphones that by-pass the speaker are
included
since speaker sounds may startle the animal. The Vet-Dop
includes a sensitive 9.4 MHz., focused transducer that can be held in
place with the finger or thumb while steadying the
limb with the same hand, or may be secured to the
limb using one of the Velcro straps provided. A pressure pump and gauge (sphygmomanometer),
stereo audio headphones, a set of five
cuffs, instructions and a 19 minute procedural video are included with each Vet-Dop.
The cuff set
includes the following sizes, measured length by width in cm: 25 x 6,
21 x 5, 17 x 4, 14 x 3, and 11 x 2.5. These sizes cover the range from
small cats to large dogs.
In a recent study, 61% of cats and 93% of dogs with chronic
renal failure also had systemic hypertension. Also, 87% of cats with
untreated hyperthyroidism had systemic hypertension. Cushing diseased dogs
should be checked for hypertension. All geriatric pets should also be
routinely checked for hypertension. "It is almost mandatory that every veterinary practice have
the capabilities for blood pressure screening and monitoring. The Doppler is the preferred instrument for obtaining
non-invasive, accurate consistent systolic readings in awake dogs and cats. The
Vet-Dop technology is so easy to use and represents an essential piece of
equipment that every practice should have." Larry Tilley, DVM,
DACVIM (Internal Medicine).
Click on photos to enlarge
|
|
|
|
Vet-Dop with standard accessories
|
|
|
|
Vet-Dop with storage pouch
|
|
|
|
Vet Dop with strap holding transducer
|
|
|
Double click the links below to download and save these
Acrobat PDF files
on your computer:
VetDop Flyer Update.pdf
Vet-Dop Specifications. PDF
Vet-Dop
Ultrasonic Doppler Animal Blood Pressure System
Key Features
- Designed for veterinarians to measure Doppler systolic blood pressure
- Advanced, low-noise microelectronics
- Sensitive, wide beam, focused 9.4 MHz. transducer
- Easy to use
- Uses three "C" cell flashlight batteries
for over 50 hours of service
- Portable, rugged and reliable
- One year parts and labor warranty
- Includes 19 minute video on Vet-Dop application and clinical use*
* "An Overview of Hypertension and Use of the Vet-Dop to Measure
Animal Systolic Blood Pressure", Gary Norsworthy, DVM ©Vmed
Technology, 2002
Blood Pressure Accessories
One each of the below components are included with
each Vet-Dop set. These items are compatible with other Doppler
instruments and can be purchased separately. (See price list)
- Sphygmomanometer
- Set of 5 animal cuffs
- 6 probe attachment straps
- Stereo audio headphones
- Doppler procedure and hypertension video
- Storage pouch
Blood Pressure in Veterinary Medicine
(1)
On a practical level, every veterinary practice should have a blood
pressure unit, especially in feline medicine. Numerous studies in the
veterinary literature show that a large percentage of cats more than 12
years of age have hypertension, either secondary to chronic renal disease or
from underlying thyroid disease. A blood pressure monitoring device is
critical for practitioners who see a large number of geriatric feline
patients. Blood pressure should be recorded for cats with left ventricular
hypertrophy of an unknown cause, cats with renal disease, cats with acute
visual problems, and other critically ill patients.
Diseases commonly associated with hypertension in both the dog and
cat, include systemic hypertension and renal disease, hyperadrenocorticism,
hyperthyroidism, essential of primary hypertension, and pheochromocytoma.
Of these, Cushing's disease, (dogs) and renal disease are probably the most
common. The majority of cats diagnosed as hypertensive are presented to
veterinarians for the evaluation of ocular abnormalities such as dilated
pupils, hyphema or presumed blindness.
BLOOD PRESSURE GUIDELINES
It is important to realize that "normal"
is
going to depend on technique and the status of the patient. It is best
to take 5 to 6 recordings and to eliminate the upper and lower values and
average the remaining values. A systolic blood pressure is elevated in
an unstressed, awake, dog or cat if it is consistently greater than 170-180
mmHg in the cat, or greater than 180 mmHg in the dog.
(1) Systemic Hypertension: Diagnosis & Treatment,
Larry P. Tilley, DVM, Diplomate, ACVIM (Internal Medicine)
DOPPLER BLOOD PRESSURE
While direct invasive measurement of blood pressure is most accurate,
it is not practical in diagnosis and expensive and time consuming in surgery. Of the two non-invasive techniques
available, the Doppler technique seems to work best, particularly for cats.
In this method, the Doppler is placed distal to a cuff and is used like a
stethoscope to detect the onset of blood flow as the cuff is deflated.
Systolic pressure is read at this point on a pressure gauge. Accurate
diastolic pressure is usually not detectable with Doppler, however because
of the relatively broad band frequency response of the Vet-Dop, diastolic
pressure is more likely to be detected. The cuff width
should be selected based on the limb size and should never be smaller than
the diameter of the limb used but can be up to twice this diameter without
affecting accuracy.
To measure blood pressure you need the Vet-Dop to
detect blood flow, a cuff inflator with gauge (sphygmomanometer) and a blood
pressure cuff of the appropriate size. We offer a set of 5 cuff sizes
that cover most small animal applications. Ultrasound gel is needed to ensure a good acoustical
connection between the probe and the animal's skin. Some clinicians
prefer to use a headset so the animal is not frightened by the Doppler
signal although by keeping the volume low this may not be a problem.
For pricing and ordering information contact Vmed
Technology toll free at 800.926.9622 or email Vmed at info@vmedtech.com.
|
|
|
