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Oncology Department
When a pet
is admitted to our hospital, family members often have many
questions. We hope the information provided will help you understand
how we deliver specialized veterinary oncologic care and help ease
any concerns your family may have.
General Information
The Oncology department is
divided into surgical and medical oncology. Both are staffed by
teams of specially trained doctors and nurses who contribute to the
care of every oncology patient. We provide consultations for owners
with pets diagnosed with cancer Monday through Saturday.

Appointments are
scheduled with the surgical oncology staff if growths have not been
biopsied or removed, and scheduled with the medical oncology staff
when additional surgery is not needed. Should a problem occur after
normal business hours, the department is covered by the
Animal Emergency and Critical Care
Center.
Many of the treatment
modalities developed for humans are also available for pets
undergoing treatment for cancer. Advanced removal techniques and
sophisticated equipment found at human hospitals opens options for
patients once thought to have "inoperable" cancer. Adjunctive
therapies can often prolong both length and quality of life in many
pets with cancer.
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Chemotherapy is the most
effective single treatment for some types of cancer, offering the
best opportunity for remission, while maintaining good to excellent
quality of life. Chemotherapy is sometimes used in conjunction with
radiation therapy in certain circumstances. Chemotherapy treatments
can be coordinated as scheduled appointments or as morning
day-admits with afternoon releases. Ask our medical oncology staff
clinicians about this convenient service.
Family members are
contacted by the oncology staff doctors between 9 and 11 a.m. Additional contacts are made if a significant change in status occurs
at any other time. Visitation is generally discouraged during brief
hospitalizations because of stress experienced by the pets
associated with the family's departure. In certain circumstances,
visitation can be
arranged,
but must be approved by the primary oncology clinician and prearranged by the
oncology department staff. In general, visits are often after clinic hours
between 7 and 9 pm, are limited to less than 30 minutes, and may be
shortened or terminated if the attending doctor finds it medically necessary.
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Oncology patients are
generally discharged before 10 am or between 4 and 8 pm. At time of discharge,
family veterinarians are contacted by telephone with updated
information on the patient. In addition, a summary copy of the
medical record and copies of all diagnostics are faxed to the family
veterinarian.
Understanding
Chemotherapy
Chemotherapy refers to any drug that
is toxic to cancer cells, thus suppresses cancer growth. Chemotherapeutic drugs may be given intravenously, intramuscularly,
subcutaneously or orally and in general do not cause the severe side
effects seen in human patients. The purpose of chemotherapy is to
extend both length and quality of life.
- How does chemotherapy work?
Cancer cells generally divide or grow
very rapidly and chemotherapy works by damaging the ability of these
rapidly growing cells to divide eventually killing them.
- What are the benefits of chemotherapy?
- Chemotherapy is the most effective
single treatment for some types of cancer, offering the best
opportunity for remission, while maintaining good to excellent
quality of Iife. An example of a type of cancer which is best
treated by chemotherapy is lymphoma.
- Chemotherapy can often be used in the post-operative setting. The
purpose of chemotherapy in this setting is to kill any remaining
cancer cells that have evaded the surgeon or to prevent the spread
or metastasis of the cancer after surgery.
- Chemotherapy can be used in conjunction with radiation
therapy. In some instances chemotherapy can actually help the
radiation kill cancer cells. In other instances, the chemotherapy is
used to kill metastatic cells while the radiation is used to kill
the local tumor.
- Chemotherapy
can also be used to treat some cancers that are not amenable to
surgery or radiation therapy. In most of these cases,
chemotherapy is used to improve the quality of life, rather than
to cure the pet.
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- Are
there risks or side effects involved
with chemotherapy?
There are
some risks involved with any type of treatment. Some normal cells
can be injured or killed by the chemotherapy. The most common side
effects are mild vomiting, diarrhea, and anorexia (loss of
appetite). These side effects are due to the effects of chemotherapy
on the other rapidly dividing cell populations in the body; the
cells lining the intestines and the bone marrow. In most cases the
side effects are mild or self limiting, and the benefits of the
chemotherapy far outweigh the side effects. When the lining of the
intestines are affected by the chemotherapy, vomiting, diarrhea or
anorexia may occur. These signs are usually mild and can be treated
with supportive care at home. In some instances more serious side
effects can occur that will require your pet to be hospitalized for
intravenous fluids, nutritional support and antibiotics. These
severe reactions are however, uncommon. If chemotherapy damages the
bone marrow, where the white blood cells that fight infection are
made, the result can be serious. In these rare cases, the pet is at
risk for overwhelming infection. Your pet will need to be
hospitalized and placed on intravenous antibiotics if this happens.
White blood cell counts are monitored on all pets receiving
chemotherapy to try and prevent this side effect from occurring.
Hair loss, a
common side effect in people receiving chemotherapy, is usually very
minor in the dog and cat. There are certain breeds which are
predisposed to hair loss because of the manner in which their hair
grows. These breeds include: poodles, Old English Sheepdogs,
schnauzers, pulis, Lhasa apsos, shihtzus, or malteses. If hair loss
does occur, it will usually occur in the initial phases of
chemotherapy and will eventually grow back once the treatments are
spread out. Cats do not generally lose their hair, although many
will lose their whiskers.
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After Hours
Should a
problem arise after normal business hours, the Oncology
Department is covered by the
Animal Emergency and
Critical Care
Center
at Long Island Veterinary Specialists. It is always best to call in
advance when possible, however, if problems arise, do not hesitate to
bring your pet in immediately. This facility is staffed 24-hours by
veterinarians and nurses ready to assist you and your pet.
Your
cooperation and understanding will help us focus our energies on
patient care. We are available to answer any questions you may
have during our daily patient updates.
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