Minimally Invasive Surgery
What is "minimally
invasive" surgery?
The term describes certain surgical procedures and
techniques that utilize innovative technology to limit the
disturbance of healthy tissue during surgery. Such methods
typically require smaller incisions than conventional
surgery or, in some cases, no incision at all.
How is minimally invasive surgery different?
Rather than make a large incision to gain access to the
problem area, the surgeon inserts a thin telescope-like
instrument called an endoscope. Light traveling along fibers
in the endoscope lights internal organs or cavities and
allows the surgeon or endoscopist to see inside the body.
Other instruments used with the endoscope allow the surgeon
to take photographs, obtain biopsies of tissue, and use
lasers to cut, coagulate and vaporize tissue.
What kind of endoscope will be used for my procedure?
Endoscopes are used in many different areas of the body.
They are available in various sizes and can be either rigid
or flexible, depending on the requirements of the body area
in which they are used. Some of the various types include:
- Laparoscope: Designed for viewing the abdominal
area; used in gallbladder operations, hernia repair,
appendix removal, hysterectomies and other procedures.
- Arthroscope: Designed for viewing the knee and other
joints; used in arthroscopic knee and shoulder surgery.
- Sinuscope: Designed for viewing nasal and sinus
cavities; used in endoscopic sinus surgery.
- Cystoscope: Designed for viewing the bladder; used
in prostate surgery and other procedures related to the
urinary and reproductive systems.
- Hysteroscope: Designed for viewing the uterus and
assisting with certain gynecological procedures.
- Colonoscope: Used for viewing the colon.
What is "videoscopic" surgery?
Often the endoscope is equipped with special lenses and a
video camera, which can be used to transmit a magnified
image to a television monitor during surgery. This gives
surgeons and their teams the same immediate, close-up view
of the surgical site.
What is the role of the laser in minimally invasive
surgery?
Laser beams are easily directed through scopes, which make
it possible for lasers to be used in a variety of minimally
invasive surgeries. When used to remove tissue, a laser
coagulates blood vessels as it cuts, thereby reducing blood
loss and often creating a drier surgical field, which allows
the surgeon to see better. It is a precise instrument, so
there is a little damage to surrounding tissue.
Exactly how could I benefit from minimally invasive
surgery?
Each surgery is a distinct situation, and specific outcomes
or expectations depend on a variety of factors. However,
patients can generally expect the following advantages over
conventional surgery:
- Less post-operative pain
- Reduced blood loss
- A shorter hospital stay, or no stay at all
- A quicker return to normal activities
Can minimally invasive techniques be used in every
surgery?
Utilization of these techniques has expanded at a rapid pace
in recent years. However, not all medical specialties or
procedures have adopted these approaches. For certain
situations, conventional surgery is still the generally
accepted method. As training and endoscopic skills become
more widespread, minimally invasive approaches are expected
to expand further and set a new standard or surgical care.