Editorials
1. Minimally Invasive Surgery: From Adult to Neonatal Applications
(added 03-13-2002)
Minimally Invasive Surgery: From Adult to Neonatal
Applications
Author: Dr. Steven Rothenberg, MD
IPEG Past-President and Membership Committee Chair
Published in International Hospital Equipment & Solutions
Volume 27, Issue #7, November, 2001, Page 54
Over the last decade there has been a dramatic revolution in surgical
practice with the wide spread acceptance of minimally invasive
surgery. This is abdominal (laparoscopic) and chest (thoracoscopic)
surgery that is performed through a number of small incisions with
special instruments and cameras, rather than the large incisions
previously used. The pioneering procedure in adults was the laparoscopic
cholecystectomy, which was first performed in the U.S. in 1989.
Since that time the instruments and techniques have been adapted
so that a majority of procedures can now be performed this way.
The advantages are many including decreased post-operative pain
and recovery time, shorter hospitalizations, and a superior cosmetic
result. While this technology was quickly assimilated in the care
of adults the process was much slower in children and especially
in small neonates and infants.
The obstacles were many for the application of minimally invasive
surgery (MIS) in children. The initial instrumentation was too
large and awkward to use in children, there was a significant resistance
among pediatric surgeons to adopt these new techniques, and the
benefits to pediatric patients were not as clear. However, over
the last decade there have been significant advancements made in
both technology and technique that now allow even the most complicated
neonatal procedures to be performed using MIS.
The International Pediatric Endosurgical Group (IPEG) has fostered
much of this development. IPEG started as a small group of pediatric
surgeons from around the world who shared an interest in developing
MIS techniques in children. They believed that infants and children
would benefit from the same decrease in post-operative pain and
quicker recovery as adults, with the added benefit that decreased
scarring would result in fewer long-term complications. This group
has pioneered many of the procedures performed in infants today
and helped develop the instrumentation necessary to make these
procedures possible. The group has rapidly expanded and now comprises
over 350 surgeons in over 30 countries. Through these advances
MIS has become much more prevalent in the pediatric population.
Minimally invasive surgery is performed through a number of small
ports, which allow the introduction of special instruments and
telescopes. The ports have valves, which allow for the insufflation
of CO2, which expands the abdominal cavity and creates a dome like
environment in which to work. The picture, now digital in most
cases, is viewed on monitors placed over the patient and the surgeon
operates while looking at the monitor.
Over the last 5 years smaller instrumentation and scopes (2 & 3mm) have been developed that now allow very complicated procedures to be performed in even small premature infants only 1000 gms in size. Below is a list of procedures which are now commonly performed in infants under 5 kg.
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Nissen Fundoplication
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PDA Ligation
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Pyloromyotomy
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Lung Biopsy
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Pull-through Procedure
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Lobectomy
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CDH Repair
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Esophageal Duplication
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Imperforate Anus Repair
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Thoracic Duct Ligation
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Duodenal Atresia repair
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TEF Repair
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Ovarian Cystectomy
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Diaphragmatic Plication
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NEC resection
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Aortopexy
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Intestinal Duplication
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Bronchogenic Cyst
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Malrotation
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Sequestration
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These procedures when performed using MIS techniques have resulted
in significantly lower morbidity and much shorter hospital stays.
For example, patients undergoing a fundoplication for gastro-esophageal
reflux would often be hospitalized for up to a week after surgery.
Now that the procedure is done laparoscopically the average hospital
stay is one day and the incisions are barely visible after 2 to
3 months. The post-operative complications, especially respiratory
problems such as pneumonia, have significantly decreased. It also
appears that long-term problems from adhesion formation will be
much less. This is extremely important when considering the entire
lifespan of an infant.
Thoracic procedures can also be performed avoiding the necessity
of a painful and relatively morbid thoracotomy. It has been well
documented that infants and children undergoing thoracotomies have
a higher incidence of scoliosis and shoulder girdle weakness later
in life. The ability to perform procedures such as Patent Ductus
Arteriosus ligation, Tracheo-esophageal Fistula repair, and lung
resections for congenital lesions, thoracoscopically, should significantly
diminish these long-term complications.
These new techniques have become so sophisticated that they are
now being applied to pre-natally diagnosed lesions. Fetoscopic
surgery is now being used in a number of centers to evaluate and
in some cases intervene when there are life-threatening anomalies
present. The ability to safely reach the fetus in the womb and
perform surgical therapy threw a few tiny incisions may someday
change standard therapy for a number of congenital or inherited
diseases.
Whether it be the treatment of common surgical diseases such as
appendicitis or complex congenital anomalies like tracheo-esophageal
fistula, MIS has made a dramatic impact on the surgical care of
infants and children, and future developments promise only to further
expand the applications and benefits.
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