What
is Endoscopic Surgery?
by Chris
Miller, DVM
Endoscopic surgery uses
scopes going through small incisions or natural body openings in order to diagnose
and treat disease. Another popular term is minimally invasive surgery (MIS),
which emphasizes that diagnosis and treatments can be done with reduced body
cavity invasion.
Why?
The goal for using endoscopes
for surgery is to reduce the tissue trauma and body's response to the injury
of traditional (or open) surgery. As compared to minimally invasive surgery,
traditional surgery requires much longer incisions and the stretching of incisions
with retractors. Minimally invasive surgery usually uses several very small
openings, thus reducing the surgical insult. Controlled studies in patients
and laboratory animals have found decreased stress response in patient operating
endoscopically as compared to traditional surgery.
Endoscopic surgery can
be done to make a diagnosis, such as obtaining biopsy of an organ that history,
examinations and laboratory studies suggest is not working properly. This can
result in more directed and appropriate treatment. Another widespread use is
to diagnose the type and spread of cancer. This can produce a more accurate
understanding of the cancer and provide information to recommend, or not to,
recommend specific cancer treatment. In the case of determining whether cancer
is treatable, small openings reduce anesthetic and surgical stresses making
it possible to wake the patient up. Many terminal patients can have extension
of good quality life following endoscopic surgery. This contrasts to the traditional
approach of euthanizing terminal patients during anesthesia, rather than permitting
them to recover from a major surgery.
An exciting new area for
surgical endoscopy in animals is to treat using much smaller openings and tissue
injury. This use of rigid endoscopes to treat people accelerated their application
in human medicine. Examples include laparoscopic removal of disease gall bladders.
Techniques currently being performed as treatments in dogs and cats include:
- Laparoscopic incisional
gastropexy (Preventative and Treatment)
- Laparoscopic enterostomy
tube placement
- Laparoscopic cyptorchid
castration
- Laparoscopic ovariohysterectomy
- Laparoscopic cystopexy
for retroflexed bladder in perineal hernia
- Laparoscopic cystoscopic
calculi removal
- Laparoscopic colopexy
for recurrent rectal prolapse
- Laparoscopic gastrostomy
for foreign body removal
- Thoracoscopic pericardial
resection for pericardial effusion
- Thoracoscopic assisted
lung lobectomy
- Thoracoscopic correction
of persistent right arotic arch
- Thoracoscopic thoracic
duct ligation for chylothorax
- Coelioscopy (birds and
reptiles)
What Are The Advantages
Of Laparoscopy?
Laparoscopy is easier on
the patient because it uses a few very small incisions. For example, traditional
"open surgery" on the abdomen usually requires a four- to five-inch
incision through layers of skin and muscle. In laparoscopic surgery, the doctor
usually makes two to three incisions that are about a half-inch long.
The smaller incisions cause
less damage to body tissue, organs, and muscles. The patient can go home sooner;
depending on the kind of surgery, patients may be able to return home a few
hours after the operation, or after a brief stay in the hospital. The patient
recovers quickly and experiences fewer post-operative complications and less
pain.
The amount of discomfort
varies with the kind of surgery. In most cases, however, patients feel little
soreness from the incisions, which heal within a few days. Most need little
or no pain medicine. And with
reduced hospitalization time and fewer complications, costs are reduced.
Benefits of laparoscopic
surgery:
- Shorter surgery and
anesthesia time
- Less pain
- Quicker recovery
- Prevents life-threatening
twist of stomach
- Less expensive than
treating life-threatening GDV
- Patient can go home
on the day of the procedure
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