A Research Proposal As A Partial Requirement in Delivery Room
A Research Proposal As A Partial Requirement in Delivery Room
AS A PARTIAL
    REQUIREMENT IN
    DELIVERY ROOM
SUBMITTED TO:
SUBMITTED BY:
BIRUNG, SHERWIN P.
SIBAL, KENNETH B.
        Breast cancer refers to cancers originating from breast tissue, most commonly
from the inner lining of milk ducts or the lobules that supply the ducts with milk.
Cancers originating from ducts are known as ductal carcinomas; those originating from
lobules are known as lobular carcinomas. There are many different types of breast
cancer, with different stages (spread), aggressiveness, and genetic makeup; survival
varies greatly depending on those factors. Computerized models are available to predict
survival. With best treatment and dependent on staging, 10-year disease-free survival
varies from 98% to 10%. Treatment includes surgery, drugs (hormonal therapy and
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  chemotherapy), and radiation.
        Some breast cancers require the hormones estrogen and progesterone to grow,
and have receptors for those hormones. After surgery those cancers are treated with
drugs that interfere with those hormones, usually tamoxifen, and with drugs that shut
off the production of estrogen in the ovaries or elsewhere; this may damage the ovaries
and end fertility. After surgery, low-risk, hormone-sensitive breast cancers may be
treated with hormone therapy and radiation alone. Breast cancers without hormone
receptors, or which have spread to the lymph nodes in the armpits, or which express
certain genetic characteristics, are higher-risk, and are treated more aggressively. One
standard regimen, popular in the U.S., is cyclophosphamide plus doxorubicin
(Adriamycin), known as CA; these drugs damage DNA in the cancer, but also in fast-
growing normal cells where they cause serious side effects. Sometimes a taxane drug,
such as docetaxel, is added, and the regime is then known as CAT; taxane attacks the
microtubules in cancer cells. An equivalent treatment, popular in Europe, is
cyclophosphamide, methotrexate, and fluorouracil (CMF). Monoclonal antibodies, such
as trastuzumab (Herceptin), are used for cancer cells that have the HER2 mutation.
Radiation is usually added to the surgical bed to control cancer cells that were missed by
the surgery, which usually extends survival, although radiation exposure to the heart
may cause damage and heart failure in the following years.
1
 Reference: www. Wikipedia.com
   Breast cancers can be classified by different schemata 2. They include stage (TNM),
pathology, grade, receptor status, and the presence or absence of genes as determined
by DNA testing:
      Stage. The TNM classification for breast cancer is based on the size of the tumor
(T), whether or not the tumor has spread to the lymph nodes (N) in the armpits, and
whether the tumor has metastasized (M) or spread to a more distant part of the body.
Larger size, nodal spread, and metastasis have a larger stage number and a worse
prognosis.
The                         main                       stages                        are:
                 3
Stage         Tis ,       a        pre-malignant        disease       or         marker.
Stages 1-3 are defined as 'early' cancer and potentially curable.
Stage 4 is defined as 'advanced' cancer and incurable.
       Pathology. Most breast cancers are' derived from the epithelium lining the ducts
or lobules. (Cancers from other tissues are considered "rare" cancers.) Carcinoma in situ
is proliferation of cancer cells within the epithelial tissue without invasion of the
surrounding tissue. Invasive carcinoma invades the surrounding tissue. Cells that are
dividing more quickly have a worse prognosis 4. One way to measure tumor cell growth is
with the presence of protein Ki67, which indicates that the cell is in S phase, and also
indicates susceptibility to certain treatments.
     Receptor status. Cells have receptors on their surface and in their cytoplasm and
nucleus. Chemical messengers such as hormones bind to receptors, and this causes
changes in the cell. Breast cancer cells may or may not have three important receptors:
estrogen receptor (ER), progesterone receptor (PR), and HER2/neu. Cells with these
receptors are called ER positive (ER+), ER negative (ER-), PR positive (PR+), PR negative
(PR-), HER2 positive (HER2+), and HER2 negative (HER2-). Cells with none of these
receptors are called basal-like or triple negative. ER+ cancer cells depend on estrogen
for their growth, so they can be treated with drugs to reduce estrogen (eg tamoxifen),
and           generally            have            a          better           prognosis.
Generally, HER2+ had a worse prognosis, however HER2+ cancer cells respond to drugs
such as the monoclonal antibody, trastuzumab, (in combination with conventional
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  Representation
3
  Carcinoma in Situ
4
  diagnosis
chemotherapy) and this has improved the prognosis significantly.
All     of     these    receptors    are     identified    by     immunohistochemistry.
Receptor status is used to divide breast cancer into four molecular classes: (1) Basal-like,
which are ER-, PR- and HER2- (triple negative, TN). Most BRCA1 breast cancers are basal-
like TN. (2) Luminal A, which are ER+ and low grade (3) Luminal B, which are ER+ but
often      high    grade    (4)    HER2+,     which     have     amplified      ERBB2.
Finally, receptor status has become a critical assessment for all breast cancers, as it
determines the suitability of using targeted treatments eg tamoxifen and or
trastuzumab. These treatments are now some of the most effective adjuvant treatments
of breast cancer. Conversely, triple negative cancer (ie no positive receptors) is now
thought to indicate a poor prognosis.
       DNA microarrays have compared normal cells to breast cancer cells and found
differences in hundreds of genes, but the significance of most of those differences is
unknown. Several screening tests are commercially marketed, but the evidence for their
value is limited. The only test supported by Level II evidence is Oncotype DX, which is
not approved by the U.S. Food and Drug Administration (FDA) but is endorsed by the
American Society of Clinical Oncology. MammaPrint is approved by the FDA but is only
supported by Level III evidence. Two other tests have Level III evidence: Theros and
MapQuant Dx. No tests have been verified by Level I evidence (in a prospective,
randomized controlled trial, patients who used the test had a better outcome than
those who did not). In a review, Sotirou concluded, "The genetic tests add modest
prognostic information for patients with HER2-positive and triple-negative tumors, but
when measures of clinical risk are equivocal (e.g., intermediate expression of ER and
intermediate histologic grade), these assays could guide clinical decisions."
    Breast cancer is usually, but not always, primarily classified by its histological
appearance. Rare variants are defined based on physical exam findings. For example,
IBC5, a form of ductal carcinoma or malignant cancer in the ducts, is distinguished from
other carcinomas by the inflamed appearance of the affected breast. In the future, some
pathologic classifications may be changed.
5
    inflammatory breast cancer
Signs and symptoms
        Indications of breast cancer other than a lump may include changes in breast size
or shape, skin dimpling, nipple inversion, or spontaneous single-nipple discharge. Pain 6
is an unreliable tool in determining the presence or absence of breast cancer, but may
be indicative of other breast health issues.
       When breast cancer cells invade the dermal lymphatics—small lymph vessels in
the skin of the breast—its presentation can resemble skin inflammation and thus is
known as inflammatory breast cancer (IBC). Symptoms of inflammatory breast cancer
include pain, swelling, warmth and redness throughout the breast, as well as peau
d'orange7.
       Occasionally, breast cancer presents as metastatic disease, that is, cancer that
has spread beyond the original organ. Metastatic breast cancer will cause symptoms
that depend on the location of metastasis 8. Unexplained weight loss can occasionally
herald an occult breast cancer, as can symptoms of fevers or chills. Bone or joint pains
can sometimes be manifestations of metastatic breast cancer, as can jaundice or
neurological symptoms. These symptoms are "non-specific", meaning they can also be
manifestations of many other illnesses.
Risk factors
       The primary risk factors that have been identified are sex, age, lack of
childbearing or breastfeeding, and higher hormone levels.
In addition to the risk factors specified above, demographic and medical risk factors
include:
       Personal history of breast cancer: A woman who had breast cancer in one breast
has an increased risk of getting cancer in her other breast.
    Family history: A woman's risk of breast cancer is higher if her mother, sister, or
daughter had breast cancer. The risk is higher if her family member got breast cancer
8
    Common sites of metastasis include bone, liver, lung and brain
    before age 40. Having other relatives with breast cancer (in either her mother's or
    father's family) may also increase a woman's risk.
         Certain breast changes: Some women have cells in the breast that look abnormal
    under a microscope. Having certain types of abnormal cells (atypical hyperplasia and
    LCIS9) increases the risk of breast cancer.
         Race: Breast cancer is diagnosed more often in Caucasian women than Latina,
    Asian, or African American women.
       Abortion has not been found to be a risk factor for breast cancer. The breast cancer
    abortion hypothesis, however, continues to be promoted by some pro-life groups.
           The list of complications that have been mentioned in various sources for Breast
    Cancer includes:
Complications and sequel10 of Breast Cancer from the Diseases Database include:
              Cachexia
              Cerebral metastases
              Lymphangitis carcinomatosa
              Breast lump
              Opsoclonus
              Lung metastases
              Brachial plexus neuropathy
              Back pain
              Liver metastases
              Bone metastases
              Prostate specific antigen levels raised (plasma or serum)
              Bone pain
              CEA raised
              Renal metastases
              Mastalgia
              Pleural effusion
              Lymphadenopathy
              Leukoerythroblastic anemia
              Cutaneous metastasis
              Osteosclerosis
              Nipple discharge
Diagnostic Tests
    9
        lobular carcinoma in situ
    10
         Progression of disease
       The list of diagnostic tests mentioned in various sources as used in the diagnosis of
    Breast Cancer includes:
           Surgery is usually the first line of attack against breast cancer. This section
    explains the different types of breast cancer surgery.
       Decisions about surgery depend on many factors. You and your doctor will
    determine the kind of surgery that’s most appropriate for you based on the stage of the
    cancer, the "personality" of the cancer, and what is acceptable to you in terms of your
    long-term peace of mind.
     Chemotherapy treatment uses medicine to weaken and destroy cancer cells in the
body, including cells at the original cancer site and any cancer cells that may have
spread to another part of the body. Chemotherapy14, is a systemic therapy, which means
it affects the whole body by going through the bloodstream.
       
       early-stage invasive breast cancer to get rid of any cancer cells that may be left
behind after surgery and to reduce the risk of the cancer coming back
    advanced-stage breast cancer to destroy or damage the cancer cells as much as
possible
    Radiation therapy uses a special kind of high-energy beam to damage cancer cells.
(Other types of energy beams include light and x-rays.) These high-energy beams, which
are invisible to the human eye, damage a cell’s DNA, the material that cells use to
divide.
    Over time, the radiation damages cells that are in the path of its beam — normal
cells as well as cancer cells. But radiation affects cancer cells more than normal cells.
14
     often shortened to just "chemo"
15
     also called radiotherapy
    Cancer cells are very busy growing and multiplying — 2 activities that can be slowed or
    stopped by radiation damage. And because cancer cells are less organized than healthy
    cells, it's harder for them to repair the damage done by radiation. So cancer cells are
    more easily destroyed by radiation, while healthy, normal cells are better able to repair
    themselves and survive the treatment.
There are two different ways to deliver radiation to the tissues to be treated:
              a machine called a linear accelerator that delivers radiation from outside the
    body
              pellet, or seeds, of material that give off radiation beams from inside the body
        Tissues to be treated might include the breast area, lymph nodes, or another part of
    the body.
        Some people may fear radiation therapy. They may worry that therapeutic radiation
    may be dangerous like an atomic bomb or nuclear power plant. Stories about radiation
    side effects, some of them exaggerated can circulate around hospital waiting rooms. It's
    important for you to know that there is NO connection between therapeutic radiation
    and the types of radiation in bombs and nuclear reactors. The radiation used in cancer
    treatment is highly focused, controllable, and generally safe.
            Individual cancer cells are too small to be felt or seen during surgery or detected
    by testing. Any cells that remain after surgery can grow and eventually form a new lump
    or show up as an abnormality on a test such as a mammogram.
          Research has shown that people who are treated with radiation after
    lumpectomy are more likely to live longer, and remain cancer-free longer, than those
    who don't get radiation. In one large study, women who didn't get radiation after
    16
         also called thermal therapy or thermotherapy
    lumpectomy were shown to have a 60% greater risk of the cancer coming back in the
    same breast. Other research has shown that even women with very small cancers (1
    centimeter or smaller) benefit from radiation after lumpectomy.
        Most of the estrogen in women's bodies is made by the ovaries. Estrogen makes
    hormone-receptor-positive breast cancers grow. So reducing the amount of estrogen or
    blocking its action can reduce the risk of early-stage hormone-receptor-positive breast
    cancers coming back (recurring) after surgery. Hormonal therapy medicines can also be
    used to help shrink or slow the growth of advanced-stage or metastatic hormone-
    receptor-positive breast cancers.
        In some cases, the ovaries and fallopian tubes may be surgically removed 19 to treat
    hormone-receptor-positive breast cancer or as a preventive measure for women at very
    high risk of breast cancer. The ovaries also may be shut down temporarily using
    medication.
    It's important to know that hormonal therapy IS NOT hormone replacement therapy
    (HRT). HRT isn't used to treat breast cancer. HRT is taken by some women to treat
    troublesome menopausal side effects such as hot flashes and mood swings. HRT is used
    to raise estrogen levels that drop after menopause. HRT contains estrogen and can
    contain progesterone and other hormones. Hormonal therapy is exactly the opposite --
    it blocks or lowers estrogen levels in the body.
    17
       anti-estrogen therapy
    18
       hormone replacement therapy
    19
       Termed as oophorectomy and salphingectomy
       To prevent new cancers from starting, scientists look at risk factors and protective
       factors. Anything that increases your chance of developing cancer is called a cancer risk
       factor; anything that decreases your chance of developing cancer is called a cancer
       protective factor.
       Some risk factors for cancer can be avoided, but many cannot. For example, both
       smoking and inheriting certain genes are risk factors for some types of cancer, but only
       smoking can be avoided. Regular exercise and a healthy diet may be protective factors
       for some types of cancer. Avoiding risk factors and increasing protective factors may
       lower your risk but it does not mean that you will not get cancer.
RELATED LITERATURE
Singer and Grismaijer are medical anthropologists and directors of the Institute for the Study of
Culturogenic Disease with backgrounds in biochemistry and medicine, behavioral science,
ecology and environmental health. The duo journeyed to Fiji for a follow-up to their Bra and
Breast Cancer Study20. The experiment21, looked into a possible link between brassieres and
breast cancer. Almost half of the subjects were afflicted with the disease.
The results showed that wearing a bra for more than 12 hours every day may lead to breast
cancer. In particular, women who wore their bras for more than 12 hours but less than 24 hours
are 21 times more likely to contract breast cancer than those who wore their bras for less than 12
hours. For those who slept with their brassieres on, the risk is frightening at 125 times.
Meanwhile, those who went bra-less exhibited about the same incidence level of breast cancer in
men, which is low.
Singer and Grismaijer say the link between wearing a bra and breast cancer is 4 to 12 times as
strong as the connection between smoking and lung cancer. They explain that the reason lies in
the body’s lymphatic system.
It acts as the drainage mechanism, with its soft, tiny, thin- walled vessels and lymph fluid
flushing out the various substances accumulating in body tissues. These include toxins, bacteria,
viruses, cancer cells, cell debris and other products from the breast.
To function the effectively, the lymph fluid needs to properly circulate. Body movement—from
walking to breathing, among others, help accomplish this. The lymph vessels should not be
constricted either. However, because lymph vessels are located close to the skin’s surface, they
are subjected to pressure from tight clothes and underwear. They also prevent the wearer from
breathing fully. These factors hinder the lymph fluid from circulating and washing cancer-
causing toxins away. As such, these toxins remain in the tissues until they start causing cancers.
The brassiere is one garment that applies constant pressure to the delicate breast tissues. Red
marks and indentation left on the skin after the bra is taken off prove this. Because of this, the
woman’s breathing and lymphatic systems become constricted and thus, unable to function
efficiently.
In the 1995 book Dress to Kill: The link between breast cancer and bras, Singer and Grismaijer
discussed the results of their two-year study. According to them, some woman who learned of
the experiment began exporting the bra-less look. With weeks, they noted the disappearance of
breast pain, tenderness and cysts which previously needed regular aspiration.
Previous Studies
Although ground breaking and controversial, the bra and breast cancer studies was actually not
the first of its kind. Take note of the following:
       20
            conducted in the United States between 1991 and 1993
       21
            involving 4,700 American women in five major cities in the US,
1930 -A paper was established revealing a connection between corsets and increase breast
cancer rates.
1978 -In a medical journal published an article linking breast temperature with bras and
possibly, breast cancer.
1991 -In a medical journal article on breast cancer, Harvard University researchers offered the
observation that woman in their study who did not wear bras had a 60% lower rates of breast
cancer than those who wore bras.
      Worldwide, breast cancer is the leading cause of death for women ages 35 to 54.
      More than a million women develop breast cancer without knowing it. Almost 500,000
       die from it every year.
      One out of four individuals diagnosed with the disease die within the first five years.
       More than 40% die within 10 years
      Mammography fails to detect as much as 20% of all breast cancer cases and as much as
       40% in women under 50.
      One out of eight American women will have breast cancer. The San Francisco bay area in
       the United States has the highest incidence worldwide.
      The Philippines has the highest incidence in Asia and the 9th highest in the world.
Going Braless?
Luzmindo B. Fajardo, executive director of the Philippine cancer society, confirms that breast
cancer is the number one cause of death among Filipino women. The Philippine cancer registry
meanwhile, reveals that breast cancer cases among Filipinas number to 10,000 with an annual
mortality rate of 40%.
He estimated that up to 75% of breast cancer cases could be prevented if woman wear their bras
less often.