|
|
HPV
Diagnosis and Treatment of: Genital Human Papillomavirus
Infections
When The PAP Smear Suggests The Need For Further Evaluation
The Pap smear is a screening tests performed on cells from the uterine
cervix. It is designed to detect some of the very early changes, which
over a long period of time, if untreated, may result in cancer of the cervix.
Sometimes, a report of your recent Pap test indicates that some cells were
noted suggesting these very early changes. This does not mean that you
have or will develop cancer.
The surface cells of the outer part of the cervix are called squamous
cells. They are much like cells of the skin. The cells of the cervical
canal leading up to the uterine cavity are called columnar cells. They
secrete mucus, much like the cells of the uterine cavity or endometrium.
The point where these two types of cells meet is called the squamo-columnar
junction. From birth to middle age, this junction moves from the outer
part of the cervix towards the os, or opening of the cervix, and later
up into the endocervical canal, leading into the uterus. The area in this
junction where transformation from columnar to squamous cells is taking
place is called the transformation zone. In general, it is within this
T-zone that abnormalities are found.
As a result of clinical research, it is now believed that most abnormalities
in the cells of the T-zone are initiated by infection with the human papillomavirus,
called HPV. Involved tissue may reveal HPV cellular changes, called koilocytosis,
cervical intraepithelial neoplasia, CIN, squamous intraepithelial lesion,
SIL, or simply dysplasia, in a Pap report. Some lesions regress spontaneously,
but some do not, and current practice is to treat all lesions.
During colposcopy the cervix is magnified so that small tissue samples
may be collected from infected sites. If abnormal cells are found in the
biopsy specimen, the treatment is usually freezing, cryotherapy, at a subsequent
visit. Occasionally, a different method of treatment is required and referral
to another physician outside of the Health Service will be necessary. The
colposcopy, biopsies and cryotherapy are relatively minor office procedures
with minimal discomfort.
The only charges for these services are for the biopsies, if obtained,
because they must be sent to an outside laboratory for processing and interpretation.
Currently, the charge is $54-$94 per biopsy. Up to $150 of charges will
be paid directly by your student insurance policy. You may be reimbursed
from the student insurance fund for any charges in excess of $150 after
you file a claim. If you have other health insurance coverage through parents
or work, you must file first for reimbursement from that coverage.
Remember:
On day of the visit for colposcopy or cryosurgery, eat regularly and
take 400 mg. of ibuprofen about one hour before the visit.
Genital Human Papillomarvirus Infections
The human papillomarvirus (HPV) causes warty lesions known as condyloma
acuminata. Another name is venereal warts. Primarily found on the skin
or mucus membrane of both men and women, it is usually spread by sexual
contact. Some of the lesions are raised and easily visible, some are quite
flat and can only be seen if 5% acetic acid (usually in the form of common
white vinegar) is applied to the infected surface.
The immune system plays a vital role in fighting this as well as other
viral illnesses. Because of human variability, some individuals develop
lesions after exposure and some do not. This may be due in part to the
status of the individual's immune system or to the type of HPV causing
the infection.
The incubation period from the time of exposure to the appearance of
lesions is quite variable, ranging from a few weeks to months, and possibly
even years. If either partner has ever had another partner, it may be impossible
to determine the source of the initial infection.
When a women has warts on the external genitalia, it is common to find
them also on the cervix and the walls of the vagina. The evaluation of
both men and women must include visualization of all likely areas with
and without the use of magnification and the application of vinegar.
It is very important that both partners be examined and treated simultaneously.
HPV infections of the cervix are believed to be the initiator of Cervical
Intraepithelial Neoplasia (CIN) and Squamous Intraepithelial Lesions (SIL),
also known as dysplasia. Untreated these conditions may over a number of
years progress to cervical cancer. The individual course is also dependent
on more than one factor, such as the status of the immune system and the
type of papillomavirus causing the infection. Therefore, the evaluation
of a woman with these changes must include colposcopy, a procedure for
magnifying and viewing the cervix, and the collection of biopsies from
the infected areas.
These are office procedures associated with minimal discomfort. Some
HPV/CIN lesions may regress, but it is impossible to tell these from those
which will progress, so all lesions are usually treated. The cells of the
cervix appear to respond more rapidly to HPV with intraepithelial neoplasia
than do the cells of the other genital areas (vagina, vulva, penis) of
both men and women, so the risk of neoplasia in these areas in young adults
is so low that it should not be of immediate concern. In order to minimize
possible risks of long-term exposure, patients are strongly encouraged
to follow instructions.
Several treatments are available, the choice dependent upon individual
patient needs and the location and number of lesions. The cervix may be
treated with cryotherapy (freezing), laser or LEEP (electrical cautery).
External lesions are treated with cryotherapy, laser, 5-fluorouracil
cream, trichloracetic acid and some other topical preparations. Cryotherapy
is available through the Health Service at no charge, as are the topical
preparations that are applied at the time of a visit. Laser and LEEP therapy
are not available through the Health Service. About 95% of individuals
who require treatment can be cared for entirely within the Health Service.
Referrals will be made to outside physicians in those few instances when
necessary.
Healing from cryotherapy takes two to four weeks. A rather profuse watery
vaginal discharge starts within an hour after the treatment. It may be
slightly yellow in color. It gradually thickens and becomes darker as it
slows, and should stop completely in two weeks. Wear a small tampon or
absorbent pad and change it frequently during the first days when the discharge
is plentiful. Discharge persisting after two weeks is not normal and, if
it does persist, you should be examined promptly at the health center that
initially referred you for colposcopy, to determine what further treatment,
if any, is required. The discharge should never be bloody, contain pus,
or be foul smelling.
It is important to drink lots of fluids while the discharge is present,
especially water, and fluids and solids containing generous amounts of
potassium, such as citrus fruits and juices, bananas, and raisins. Cut
back on beverages containing caffeine.
Cryotherapy brings about healing and a disease-free state of the cervix
over 90% of the time. Most treatment failures are thought to be due to
re-exposure to other types of HPV. With any medical treatment the initial
course may not be totally successful, and it may be necessary to treat
additional lesions that appear. Treating the cervix does not necessarily
rid the genital tract of the HPV, even if other visible lesions are not
present. It is too simplistic to assume that the virus exists only on the
cervix. You must assume that it is also present in the vagina, and outside
on the perineum and perirectal areas. Though condoms provide significant
protection, and should certainly be used every time you have intercourse,
over time your partner will become infected whether you use condoms or
not. As with you, your partner may or may not have visible lesions when
infected, but it is safe to assume that, when individuals are regular partners,
they are both infected.
That is the bad news. There is good news also. HPV infection is not
a lifelong infection as herpes is thought to be. Even untreated the majority
of individuals will eventually become disease free, but this can take months
to years. The lesions that look worst are usually the ones that have the
best prognosis. Visible lesions of the female and male genital tracts and
organs, including those only visible with the use of magnification and
vinegar, are the most contagious, and should be removed, even though such
removal does not eliminate the virus from the remainder of these areas.
Currently, there are no good, applicable testing methods to tell clinicians
who is and is not infected, and who is most likely to develop cancer of
the cervix if not treated. Thus, it is current practice to treat all cervical
disease as if it might develop into cancer. The colposcopy program is really
a cancer prevention program, not a method of treatment that will rid the
entire genital tract of infection of HPV.
Important!
If both partners are otherwise healthy individuals with normal immune systems,
and both partners remain monogamous, they should eventually become free
of HPV disease because of the formation of antibodies again the HPV by
their own immune systems. If you choose not to remain sexually active,
abstinence is another viable alternative that will eventually allow a cure
to take place.
The first follow-up Pap test should be done about four months or more
after the therapy, and on or two more Pap tests should be done in the year
following treatment (total of two or three). If your tests remain normal
one year following treatment, you are considered to be cured. Almost all
apparent treatment failures represent reinfection with another type of
HPV. Immunity when it develops is type specific. Because of this, if one
monogamous partner develops immune partner has long lasting protection
against reinfection from the non-immune partner, but this protection is
only against that one specific HPV type. More than 20 varieties can infect
the genital tract.
Appropriate follow up care also includes a healthy life style to assist
your immune system. Eat properly, get enough sleep and control stress as
much as possible. Continue to encourage good body hygiene. Smoking seriously
interferes with the body's ability to mount an adequate immune response.
If you are looking for a reason to stop smoking this is certainly a good
one. Stopping could save your life. Do not despair if your first Pap tests
are not completely normal. In almost all cases they will revert to normal,
and complete re-evaluation would ordinarily not be considered until one
year after the initial treatment.
Cancer of the cervix does not develop in a few months, rather is usually
takes years for HPV infection to progress to that point. Thus, it is important
to stay in care, follow instructions and Pap tests done regularly as instructed.
The incidence of cervical cancer has dramatically decrease in the is country
due to the Pap test and proper longitudinal care.
Treatment Instructions
Though more than one form of treatment method is available if biopsies
confirm that you do have an HPV infection of the cervix, the Health Service
believes that cryosurgery and the application of certain chemicals such
as trichloracetic acid and 5-fluorouracil cream can treat almost all conditions
encountered in the health centers. Outside referrals will be made in those
few cases best treated with other modes of therapy, such as laser or
electrocauter.
Topical Chemical Applications
When receiving a course of topical applications of one of the above chemicals
it is very important that you continue in treatment until your health care
provider indicates that regular applications are no longer necessary. Continue
to practice good body hygiene and bring apparent new lesions to the attention
of the clinician caring for you at the time of each visit.
Treatment of Male Partners
It is important that, if you are currently sexually active with a male
partner, your partner be examined, and treated if necessary. Male patients
can be seen at any of the health centers but should not be referred to
the colposcopy program. Those who are not students at Rutgers can be seen
by any knowledgeable health care provider who is experienced in the diagnosis
and treatment of males with this disease. The Health Service is willing
to assist you in a referral for your partner. An adequate examination of
male requires the use of magnification an vinegar. It is not sufficient
for a clinician to simply look at the external genitalia without the utilization
of the above aides. A simple hand held magnifier (3x and 5x) is sufficient
for this type of examination. Just as with the treatment of females, removal
of visible warts does not render the individual completely free of infection
but does greatly reduce infectivity. Even if adequate examination fails
to identify lesions, your partner should be considered to be infected with
HPV. He may never develop visible lesions. The opposite is also true, some
females with infected partners may never develop visible lesions or abnormal
Pap tests, but they must also be considered to be infected.
Please remember to keep your appointment
If you are referred for colposcopy and possible cryosurgery because
of an abnormal Pap test, you may be seen by a clinician outside of the
Student Health Service at your own expense or be referred to the Health
Service colposcopy program. The only charges for the Rutgers Health Service
program are for the biopsies which are sent to an outside laboratory. Up
to $150 of the cost will be paid directly from the student insurance fund.
It will be you responsibility to keep your appointment or to call and cancel
and/or, reschedule another. If you do not do this and are a "no show,"
it is our policy to not provide you with another Health Service appointment,
but rather to refer you to an outside clinician at your own expense. Please
inform us if there are any extenuating circumstances.
Is Treatment Required?
Cervical biopsy specimens taken at the time of colposcopy are reported
as either normal, or showing a lesion (cellular abnormality). These lesions
are graded as either low grade (less severe changes), or high grade (more
server changes). This is important, because research shows that there is
a difference in the long term likelihood of progression to more serious
disease (local cancer or invasive cancer of the cervix).
It is estimated that approximately 50% of low grade lesions on the surface
of the cervix will regress (heal themselves and become normal cells) without
treatment. Other low grade lesions (about 30%) will remain stable, not
becoming normal cells, but never progressing to a worse stage. About 20%
of low grade lesions may progress to high grade lesions or eventually to
cancer in some cases, if not treated.
In the case of high grade lesions, the progression to cervical cancer
is more likely, with 30-50% progressing if not treated. There is a question
whether low grade lesions should be left untreated, and instead be observed
closely for a period of time with Pap smears, and possibly additionally
colposcopies. There is no clear, definite answer to this question. Some
reasons for following low grade lesions with careful observation instead
of immediate treatment of the cervix are:
1) Treatment would be unnecessary in those cases where lesions heal
themselves spontaneously.
2) Cervical treatments carry a small but definite risk of later problems
such as cervical stenosis (narrowing of the cervical opening, producing
painful menstruation and other problems), or cervical incompetence (weakening
of the cervix which could lead to pregnancy problems and miscarriage).
3) There is some discomfort associated with cervical treatments. This
is usually not a major problem, but it may be consideration for some women.
4) Cervical treatments could cause difficulty with future Pap smear
interpretation and colposcopic evaluation. This occurs if, following treatment,
the cells most susceptible to pre-cancerous changes recede further into
the cervical canal, and sampling becomes more difficult.
Some reasons to favor treating low grade lesions instead of following
with close observation are:
1) There is a chance for progression to a more severe lesion, which
would then require the same treatment, or even more extensive treatment.
2) Choosing close monitoring instead of treating immediately requires
time and effort for the patient. She must be willing to make more frequent
office visits for Pap smears and /or colposcopy exams for the time period
recommended to her. This could be more expensive, too, in the long run.
3) It is not clear whether treating areas affected with low grade lesions
my help reduce the spread of HPV infection to sexual partners. If so, treatment
may have additional benefits.
4) It is unlikely but possible that a serious lesion could develop and
be missed, even with the most careful monitoring, resulting in a more serious
disease (cervical cancer). We must also remember that there is a remote
possibility of this occurring even if there has been treatment. Every woman's
situation is unique. The patient and the provider should discuss the issues
involved in treatment vs. observation before a decision is made regarding
how to manage a low grade cervical lesion. If a high grade lesion is detected
by biopsy, the decision is more clear curt. In these cases, prompt treatment
is advised.
For more information, contact your health care provider.
HPV Study Q&A
|