Pediatric Surgery
Hydrocelectomy, also known as hydrocele repair, is a surgical procedure
performed to correct a hydrocele. A hydrocele is an accumulation of peritoneal
fluid in a membrane called the tunica vaginalis, which covers the front and
sides of the male testes. Hydroceles occur because of defective absorption of
tissue fluid or irritation of the membrane leading to overproduction of fluid.
In addition to filling the tunic vaginalis, the fluid may also fill a portion of
the spermatic duct (epididymis) in the scrotum.
Purpose A hydrocelectomy is performed to correct a hydrocele and prevent
its recurrence.
Demographics Hydroceles are found in male children or adult males (usually
over 40). They have no known association with a man’s ethnic background or
lifestyle factors.Description A hydrocele usually appears as a soft swelling in
the membrane surrounding the testes. It is not usually painful and does
not damage the testes. It typically occurs on one side only; only 7–10% occur on
both sides of the scrotum. Inflammation is not usually present, although if the
hydrocele occurs in conjunction with epididymitis (inflammation of the
epididymis), the testes may be inflamed and painful. The main symptom of a
hydrocele that occurs without epididymitis is scrotal swelling. As the hydrocele
fills with fluid and grows, the scrotum itself gets larger. Some men may have
pain or discomfort from the increased size of the scrotal mass. Hydroceles are
usually congenital, found in a large percentage (80% or more) of male children
and in 1% of adult males over 40.
The most common congenital hydrocele is caused by a failure of a portion of
the testicular membrane (processus vaginalis, a membrane that descends with the
testicles in the fetus) to close normally. This failure to close allows
peritoneal (abdominal) fluid to flow into the scrotum. Although surgery is the
usual treatment, it is not performed until the child is at least two years of
age, giving the processus vaginalis sufficient time to close by itself. More
than 80% of newborn boys are reported to have a patent (open) processus
vaginalis, but it closes spontaneously in the majority of children before they
are 12 months old. The processus is not expected to close spontaneously in
children over 18 months.
In adults, hydroceles develop slowly, usually as a result either of a defect
in the tunica vaginalis that causes overproduction of fluid, or as a result of
blocked lymphatic flow that may be related to an obstruction in the spermatic
cord. Hydroceles may also develop as a result of inflammation or infection of
the epididymis; trauma to the scrotal area; or in association with cancerous
tumors in the groin area. A hydrocele can occur at the same time as an inguinal
hernia.
Hydroceles can be treated with aspiration or surgery. To aspirate the
collected fluid, the doctor inserts a needle into the scrotum and directs it
toward the hydrocele. Suction is applied to remove (aspirate) as much fluid as
possible. While aspiration is usually successful, it is a temporary correction
with a high potential for recurrence of the hydrocele. Aspiration may have
longer-term success when certain medications are injected during the procedure
(sclerotherapy). There is a higher risk of infection with aspiration than with
surgery.
Generally, surgical repair of a hydrocele will eliminate the hydrocele and
prevent recurrence. In adults, surgery is used to remove large or painful
hydroceles. It is the preferred method of treatment for children over two years
of age. It is also standard practice to remove hydroceles that reoccur after
aspiration.
Patients are given general anesthesia for hydrocele repair surgery. A
hydrocelectomy is typically performed on an outpatient basis with no special
precautions required. The extent of the surgery depends on whether other
problems are present. If the hydrocele is uncomplicated, the doctor makes an
incision directly into the scrotum.
After the canal between the abdominal cavity and the scrotum is repaired, the
hydrocele sac is removed, fluid is removed from the scrotum, and the incision is
closed with sutures. If there are complications, such as the presence of an
inguinal hernia, an incision is made in the groin area. This approach allows the
doctor to repair the hernia or other complicating factors at the same time as
correcting the hydrocele. Some surgeons use a minimally invasive laparoscopic
approach to repair a hydrocele.
The operation is performed through a tiny incision using a lighted,
camera-tipped, tube-like instrument (laparoscope) that allows the passage of
instruments for the repair while displaying images of the procedure on a monitor
in the operating room.
Diagnosis Diagnosis will begin with taking a careful history, including
sexual history, recent injury, or illnesses, and observing signs and symptoms.
Hydroceles can sometimes be diagnosed in the doctor’s office by visual
examination and palpation (touch). Hydroceles are distinguished from other
testicular problems by transillumination (shining a light source through the
hydrocele so that the tissue lights up) and ultrasound examinations of the area
around the groin and scrotum.
Preparation The patient will be given standard pre-operative blood and
urine tests at some time prior to surgery. Before the operation, the physician
or nurse will explain the procedure, the type of anesthesia to be used, and, in
some cases, the need for a temporary drain to be inserted. The drain will be
placed during surgery to reduce the chances of post-operative infection and
fluid accumulation.Aftercare Immediately following surgery, the patient will be
taken to a recovery area and checked for any undue bleeding from the incision.
Body temperature and blood pressure will be monitored. Patients will usually go
home the same day for a brief recovery period at home. Follow-up appointments
are usually scheduled for several weeks after surgery so that the doctor can
check the incision for healing and to be sure there is no infection. The patient
may notice swelling for several months after the procedure; however, prolonged
swelling, fever, or redness in the incision area should be reported to the
surgeon immediately.
Risks Hydrocelectomy is considered a safe surgery, with only a 2% risk of
infection or complications. Injury to spermatic vessels can occur, however, and
affect the man’s fertility. As with all surgical procedures, reactions to
anesthesia, bleeding from the surgical incision, and internal bleeding can also
occur.
Normal results Surgery usually corrects the hydrocele and the underlying
defect completely; recurrence is rare. The longterm outlook is excellent. There
may be swelling of the scrotum for up to a month. The adult patient is able to
resume most activities within seven to 10 days, although heavy lifting and
sexual activities may be delayed for up to six weeks. Children will be able to
resume normal activities in four to seven days.
Morbidity and mortality rates Chronic infection after surgical repair can
increase morbidity. There are no instances reported of death following a
hydrocele repair.
Alternatives A hydrocele is most often a congenital defect that is
commonly corrected surgically. There are no recommended alternatives and no
known measures to prevent the occurrence of congenital hydroceles.
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