Whitehair, CL Chapter Nine v.6 Author

advertisement
Whitehair, CL Chapter Nine v.6
Author-1: Curtis L. Whitehair, MD
Associate Medical Director, MedStar National Rehabilitation Network
Director, Cancer Rehabilitation
MedStar National Rehabilitation Hospital
Author-2: Yvonne Francis, PT
MedStar NRH Network, Irving Street
Chapter Nine
Managing Lymphedema
Key Points




Lymphedema is a lifelong condition
Although lymphedema is incurable, it is controllable
The risk of developing lymphedema increases with the amount of different types
of cancer treatment
Maintaining proper exercise and a rehabilitation program by a lymphedema
expert is the best way to control lymphedema
“After my breast cancer treatment, I felt like I was home free. My oncologist said my cancer was gone
and the likelihood of recurrence was low. I felt like I didn’t have much to be concerned about. However,
6 months after my surgery, I began to notice swelling in my arm. My first thought was: Is the cancer
coming back so soon? I was so scared. Luckily, my oncologist referred me to a physiatrist – a specialist
in physical medicine and rehabilitation. This physiatrist was an expert in problems caused by cancer and
its treatment. The physiatrist told me I had lymphedema. While the bad news was that I will always be
at risk for lymphedema, the good news was that it is treatable and manageable. The physiatrist referred
me to a physical therapist with specialized training in lymphedema management. After just 6 weeks
working with the therapist twice a week, my lymphedema was practically gone. I finished outpatient
therapy and was given exercises and massage techniques to do at home on my own. I also have to wear
a compression sleeve to keep the lymphedema away. This can be annoying, but it’s worth doing to keep
my arm healthy. I am very thankful for my rehabilitation treatments.”
Mary H.
1
1
INTRODUCTION
2
Lymphedema is a specific type of swelling that can be related to cancer treatment. As Mary
3
H.’s experience illustrates, lymphedema is both scary and challenging. This chapter will help
4
alleviate those fears by first providing an understanding of how the body works, what causes
5
lymphedema, and the risk involved in developing lymphedema. Furthermore, it will provide an
6
understanding of the complications that can occur with lymphedema if not treated. Lastly it will
7
discuss the different treatment options available to minimize or control lymphedema.
8
SECTION I: WHAT IS LYMPHEDEMA
9
How the body is constructed
10
The lymphatic system is composed of lymphatic channels or vessels which are located in every
11
part of the body (Figure 9.1). This system complements the circulatory system and runs along
12
the arteries and veins in what is known as the extracellular space. The circulatory system
13
carries the blood to and from the cells in the body, however, this system is somewhat leaky and
14
about 3 liters of a protein-rich fluid per day may leak out into the extracellular space. The
15
lymphatic system filters this fluid (known as lymphatic fluid) through lymph nodes to trap
16
bacteria, viruses and debris which help the immune system. It travels to places where the
17
circulatory system does not go and provides protection against illness. Part of the job of the
18
lymphatic system is to pick up any extra fluid that then gets deposited back into the circulatory
19
system. The right side of the head and neck, the right arm and that side of the upper body
20
drain into one particular lymphatic vessel known as the right lymphatic duct. The left side of the
21
head, neck, left arm, left side of trunk and both legs drain into the left side of the circulatory
22
system through the thoracic duct. Because this network is so extensive through the whole body
23
it, unfortunately, provides excellent routes for cancer cells to migrate to other locations resulting
24
in metastases of the primary tumor. Typically the cancer cells that loosen from the primary
2
25
tumor will be trapped by the lymph nodes thus becoming a secondary cancer site. This is why
26
lymph nodes are often biopsied or removed as part of cancer treatment.
27
28
29
[Figure 9.1] The Lymphatic System
30
What causes lymphedema
31
Most lymphedema associated with breast cancer is caused by an injured lymphatic system
32
leading to a buildup of protein-rich fluid in the extracellular space typically called lymphatic
33
fluid. This may be referred to as secondary lymphedema because it is cause by a known
34
problem. Primary lymphedema causes are unknown and are usually from birth. There are two
35
main ways in which this occurs.
36
The most common is when parts of the lymphatic system are removed either during
37
diagnosis, staging or during removal of the cancerous tumor and effected lymph nodes. Less
38
commonly, but just as problematic, is an obstruction due to scarring of the lymphatic system
39
which may occur with some treatments such as radiation or from the tumor itself. When the
40
system does not drain the extra fluid, two things occur. First, the fluid that leaked out of the
41
circulatory system is unable to get back in. Secondly, the proteins in the extracellular space
42
cause more fluid to come to that area than what would have normally leaked out.
43
The effects of lymphedema
44
In breast cancer, an abnormal lymphatic system may cause edema or swelling of the arm,
45
breast, chest wall or neck. The swelling may be extremely large or very minimal. Even if
46
lymphedema is kept under good control, there is a lifelong risk of developing a return of
47
increased lymphedema.
48
The complications due to lymphedema
49
Untreated lymphedema may result in an increased size of the affected limb or body part and
50
also create several risk factors for other medical problems. Cellulitis, which is a skin infection, is
51
a common complication that left untreated could result in a serious medical condition. The
52
protein rich fluid buildup is an excellent place for bacteria to grow. In addition, there may be
53
significant problems such as openings in the skin with leaking wounds and failure of these
54
wounds to heal.
55
How lymphedema is diagnosed
56
The typical diagnosis is made by a physician or lymphedema specialist using girth
57
measurements of the affected extremity with a comparison to the unaffected side. If there is
58
greater than a 2 cm difference at the measurement sites this is typically considered due to
59
lymphedema. There can be normal physiological swelling which makes one side of everyone’s
60
body larger than the other side, but there is rarely more than a 2 cm difference. The
61
lymphedema specialist should take the measurements from the same location each time during
62
an evaluation. If there is an increase of 2 cm from prior measurements this would then be
63
considered an exacerbation of the lymphedema.
64
New research is emerging about bio-impedance machines that may be used to diagnose
65
lymphedema. These machines measure the resistance of an electrical current in the
66
extracellular space. The electrical current is not felt during the test. If there is lymphedema this
67
electrical current will move faster to the recording site. The advantage of this new technology is
68
the ability to diagnose lymphedema prior to the girth size of the arm changing. One of the first
69
signs of lymphedema that a patient will notice is heaviness in the arm. A good example to think
70
of is the following: if two towels are lying on the floor and one is dry and one is wet, the
71
measurement around the towels would be the same, however, when lifting up the two towels the
72
one which is wet will feel heavier. This is the same concept that occurs within one's arm. More
73
lymph fluid results in a sense of heaviness. Bio-impedance may diagnose lymphedema even
74
before the heaviness is noted. Recent studies suggest that early treatment will help contain
75
lymphedema.
76
There are other potential causes of swelling in the arm that are related to the circulatory
77
system. If the veins are not pumping blood well, fluid can back up and cause swelling. One
78
potential cause of this would be a blood clot, which needs to be ruled out if suspected. In this
79
case the lymphatic system may be removing fluid at its normal rate but there is more fluid than
80
the lymphatic system can remove. An analogy would be a sink running over. Either the faucet is
81
turned on so much so the sink fills faster than it drains or the faucet is okay, but the drain is
82
clogged. Your doctor may request a special test called Lymphoscintigraphy. This involves
83
injecting a small amount of radioactive material between the webspace of the fingers. The arm
84
is then scanned as the radioactive fluid is absorbed and flows through the lymphatic
85
system. This is the only way to accurately determine whether there is a circulatory system or
86
lymphatic system problem.
87
The chances of getting lymphedema
88
The risk of developing lymphedema is directly related to how much of the lymphatic system is
89
damaged either by the cancer itself or the treatment to eradicate it. Almost 80% of all patients
90
that develop lymphedema do so within the first 3 years after cancer treatment, however, it has
91
been reported to occur as far as 30 years after treatment. All treatments to battle cancer can
92
have significant side effects. Therefore it is very important to have a frank conversation with the
93
oncologist or breast surgeon to examine the risk versus the benefit of each treatment.
94
Cancer has the lowest risk of causing lymphedema. In the past, the biggest risk factor
95
was related to the number of lymph nodes removed during surgery. The surgeons now use
96
sentinel lymph node biopsy to identify how far the cancer may have spread without need of
97
exploring or removing a large portion of the lymphatic system. This has significantly reduced the
98
risk of lymphedema in today's treatment.
99
During the removal of the tumors and or the lymphatic system the risk increases with
100
each lymph node that is removed. The surgeon will report how many lymph nodes were
101
removed during the surgery. There are approximately 35 to 45 in the region of the breast and
102
armpit. Additionally, radiation causes scarring of all of the vessels that are within the radiation
103
field. This may cause obstruction of the lymphatic drainage even if no lymph nodes have been
104
removed.
105
The National Lymphedema Network (www.lymphnet.org) publishes a position paper on
106
risk reduction practices. Most of these recommendations are based on health care provider
107
expertise as there is little research or data on this subject. Refer to the website for up-to-date
108
recommendations. In general, however, the following guidelines are recommended:
109

110
111
risk for lymphedema periodically.

112
113
Maintain regular medical checkups to include an evaluation of the arm at
Report any increased size or heaviness in the arm as well as changes in
sensation, color, temperature or skin conditions.

Maintain a proper diet and body weight. This is critical as a close
114
correlation between body weight and lymphedema has been
115
demonstrated.
116

117
118
Proper exercise has been shown to improve lymphedema. CAUTION:
incorrect or unsafe exercise may worsen lymphedema

Use compression garments. Follow the manufacturer's recommendations
119
as well as your healthcare provider's instructions. Wear the garment
120
during air travel, exercise and extreme exertion.
121

122
123
124
Treat all skin infections or cellulitis urgently. More than three episodes of
cellulitis in the year may require the use of preventive antibiotics.

Appropriate skin care is extremely important.

Use regular moisturizer to maintain good skin health and avoid
125
skin breakdown and cracking, especially during dry or cold
126
weather..
127
When you go outside, wear protective clothing as well as bug
128
repellent and sunscreen on exposed skin. Avoid trauma to the
129
affected area.
130

131
132
Wear gloves when performing any activity that can injure the skin
(such as gardening).

Burns, broken bones or any kind of trauma may increase the risk
133
of lymphedema.
134
It is recommended regular venous puncture blood draws and
135
blood pressure readings should not be done on the affected side
136
if it all possible. However, in an emergency situation use that
137
arm if needed.
138

139
140
Avoid wearing constrictive clothing, this may cause additional
swelling.

Avoid extreme heat and cold temperature.

141
There is considerable controversy among healthcare
142
providers relating to heat and cold
143
recommendations. Specifically, these concern the use of
144
saunas and hot tubs. If one feels the need to get into a hot
145
tub, do not submerge the affected limb.

146
Running hot water over the affected limb in a shower is
147
allowed, however, it is not recommend to let do not let hot
148
water run over the arm long enough for it to turn red.
149
150

Your healthcare provider managing the lymphedema should be
contacted before any surgery on the affected limb.

151
Air travel: There is an increased risk of developing or making
152
lymphedema worse while flying. The low pressure in the airplane
153
cabin promotes swelling. In addition, the flow of lymph fluid slows
154
down during the flight which can contribute to increased
155
swelling. Moving the arm frequently can reduce this
156
risk. Regardless of other risk factors, it is recommended to wear
157
a compression garment (Figure 9.2). It should be placed on your
158
arm at least 30 minutes before the flight. The compression
159
garment should remain on after the flight for 1 to 3 hours based on
160
the length the flight. The rule of thumb is 1 hour of wearing for up
161
to 2 hours of flying time, 2 hours of wearing for 3-5 hours of flying
162
time and 3 hours of wearing for any flight over 5 hours.
163
SECTION II: TREATMENT OPTIONS
164
Overview
165
There are many effective treatments for lymphedema such as manual lymphatic drainage,
166
multilayer bandages, vasopneumatic sequential gradient pumps, compression garments and
167
exercise.
168
lymphedema. However, several treatments in combination are even more helpful. When these
169
treatments are combined together, it is called Complete Decongestive Therapy (CDT.) The
170
individual components of CDT are described below.
171
Manual lymphatic drainage
172
Manual lymphatic drainage (MLD) is a light massage that helps to decongest an area and move
173
lymph fluid to healthy lymph vessels. MLD should be performed by a lymphedema specialist
174
who has received specialized training and certification. The arm is placed in a relaxed position
Each of these treatments alone has been shown to be helpful to combat
175
while the specialist begins to drain proximal (closest to the shoulder) to distal (closest to the
176
hand). The massage strokes are performed to facilitate the movement of tissue fluid and
177
stimulate lymph nodes. Patients can be taught by the lymphedema specialist how to perform the
178
manual lymphatic drainage at home. Home maintenance of MLD will help to maintain the results
179
achieved in the clinic.
180
When performing MLD, It is important to avoid deep pressure to minimize the risk of a
181
backflow of fluid which can damage lymph vessels. Extra care should be taken when performing
182
MLD near radiated tissue to avoid further skin injury. Manual lymphatic drainage should be
183
performed prior to multilayer bandaging or to the vasopneumatic sequential gradient pump
184
treatment.
185
Multilayer bandages
186
Multilayer bandages (MLB) are a special type of short stretch bandages which are distinct from
187
typical ace-wrap bandaging. They are applied to the arm to assist with re-absorption of lymph
188
fluid and provide external support to the arm. A pressure gradient (tighter at the distal end and
189
looser at the proximal end) is created to facilitate a flow of fluid up the arm. The lymphatic
190
channels will begin to transport fluid away from the congested area. MLB will assist in breaking
191
up fibrosis or hardening areas of skin. MLB are wrapped along the arm to form a cone shape,
192
with greater pressure distal than proximal. The lymphedema specialist will inspect the skin prior
193
to applying the MLB for any breaks in the skin, infections, discolorations or increase in swelling
194
in the arm. Multilayer bandages will affect tissue texture changes which will reduce the size of
195
the arm.
196
Guidelines for multilayer bandages include:
197

Apply at the end of therapy treatment.
198

Don’t re-apply if they become undone between treatment sessions.
199

Continue to participate in activities of daily living with bandaging on.
200

If bandaging becomes too tight, remove outer most layers one at a time
201
until relief is experienced instead of removing entire wrap.
202

Keep bandaging dry.
203

Be aware of bandaging located around hand region when cooking with an
204
open flame.
205
The goal is to wear bandaging for 24 hours. A caregiver can be trained by a
206
lymphedema specialist how to apply MLB for home maintenance. Typically, a patient with
207
congestive heart failure should not have MLB applied unless cleared by a cardiologist.
208
Vasopneumatic sequential gradient pump
209
The vasopneumatic sequential gradient pump is a mechanical device sometimes used in
210
conjunction with MLB, and/or MLD, education and skin care. The pump is designed to move
211
fluid from the distal to the proximal arm. The, amount of pressure is usually pre-set on home
212
units at 30-40 mmHg. The treatment time should not be greater than 60 minutes per
213
session. The lymphedema specialist will place the arm in a sleeve and the flow of intermittent
214
air will move through multiple chambers causing a sequential squeezing effect. Conscientious
215
use of a home pump is critical for the reduction and long term maintenance of arm swelling..
216
Patients with congestive heart failure or kidney problems should not receive pump therapy to
217
avoid pushing extra fluid to the heart and kidney which has impaired function. There are many
218
types of vasopneumatic sequential gradient pumps on the market. The lymphedema specialist
219
will help decide which machine is best to use which may also include a consideration of the cost
220
and
how
much
is
covered
by
insurance.
221
222
[Figure 9.2] Home compression pump. Copyright Lymphapress, reprinted with permission
223
Compression garments
224
After a lymphedema specialist provides the first phase of lymphedema treatment (discussed
225
above), a compression garment will need to be worn to maintain these improvements. A
226
compression sleeve provides external pressure and is worn during the day to maintain reduction
227
of lymphedema received in treatment. Compression garments are not worn to reduce swelling,
228
but to maintain the swelling reduced by other treatments. The garments are designed to have
229
greater pressure distally than proximally and to be worn in compliance with the lymphedema
230
specialist’s recommendations. The pressure in the sleeve is based on the amount of swelling in
231
the arm: the pressure for mild swelling should be 20-30 mmHg, mild-moderate 30-40 mmHg,
232
mod-severe 40-50 mmHg. For hand swelling, a gauntlet (a glove without fingers) can be worn.
233
For breast edema and fibrosis, a compression bra is useful fibrosis and breast edema. Custom
234
compression garments can be measured by a garment fitter when the size of the arm is too
235
large for a Pre-Fabricated sleeve.
236
It is important to wear compression garments during the day when doing regular
237
activities and exercising. The lymphedema specialist may also recommend a night time
238
compression garment while sleeping. There are many different brands of these garments
239
available. As discussed earlier, it is highly recommended to wear a compression sleeve and
240
gauntlet while flying.
241
Guidelines for the compression garments:
242

They typically last for 6 months before needing to be replaced.
243

Hand wash and air dry instead of putting in the washing machine and
244
dryer.

245
When experiencing difficulty adjusting to the garment, start by wearing it
246
two hours the first day, four hours the second day and six hours the third
247
day, etc.

248
249
Any time there is increased swelling and or pain the lymphedema
specialist should be contacted immediately.
250
Exercise
251
It is essential for breast cancer patients with lymphedema to participate in some form of physical
252
activity to enhance lymph flow and maximize their quality of life. Muscles and joints can often
253
become stiff and hard to move after surgery or radiation. Exercise encourages a pumping
254
action of muscles to stimulate lymph fluid to flow. The lymphedema specialist will recommend a
255
specific exercise regimen based on individual impairments. There are three types of exercise:
256
flexibility, strength and aerobic (cardiovascular exercise). If pain is experienced during any of
257
these types of exercise, the exercise should be stopped immediately and the lymphedema
258
specialist should be notified.
259
Flexibility exercises consist of gentle stretches and range of motion which can be
260
performed postoperative Day 1. Deep breathing should be performed in conjunction with
261
flexibility exercises. MLB or a compression garment worn during exercise will support the arm,
262
serve as a protective measure and help to decrease swelling. It is important to follow the
263
exercise guidelines provided by the lymphedema specialist and progress gradually to avoid
264
overuse of the arm. Flexibility exercises can help with scar management, increase range of
265
motion and prevent joint tightness. These exercises are performed slowly to allow muscles to
266
stretch over a period of time.
267
Strengthening exercises are integral to rehabilitation management by providing physical
268
and emotional benefits. Muscle contractions help promote the flow of lymphatic fluid out of the
269
swollen region. It is important to gradually increase repetitions and resistance over a period of
270
time. Various equipment can be used safely to strengthen muscles in the arm including
271
dumbbells, weight machines, theraband and swimming (pool should be cool temperature) used
272
Some exercise principles consist of:
273

Exercise daily to achieve full symmetrical movement of the arm.
274

Deep breathing for relaxation and to increase venous blood and lymph fluid
275
return to the heart.
276

When using weights, begin with less than 10 pounds for the first six weeks.
277

Don’t wrap cuff weights on the arm.
278

Increase the amount of weight lifted at gradual intervals, as tolerated. Weight
279
lifting should never be more than “a little bit difficult”.
280
For aerobic exercise to be effective, it is recommended that the heart rate should reach
281
60—70% of the maximal heart rate. A person’s maximal heart rate is calculated by taking 220
282
minus their age. Some examples of aerobic exercise include; jogging, walking, cycling and
283
swimming. These activities will help maintain your weight, improve endurance and
284
cardiovascular fitness. It is important to drink plenty of water and take rest breaks while
285
exercising. While performing aerobic exercise, the intensity, speed and duration should not be
286
increased at the same time. Bowling, tennis and golf should be discussed with the lymphedema
287
specialist prior to returning to these activities due to the repetitive movements and stress on the
288
arm.
289
Deep Breathing exercises
290
Breathing deeply is a great contributor to good health. Among its many virtues, it helps get more
291
oxygen to all of the tissues and is a great stress reliever. Moreover, deep breathing exercises
292
are helpful to stimulate lymphatic pathways to healthy lymph nodes and the circulatory
293
system. This can be accomplished by diaphragmatic or abdominal breathing and lateral
294
expansion.
295

Diaphragmatic breathing is most easily done while lying on one’s back with your hand on
296
the abdomen. Breathe out (exhale) as much of the air as possible while pushing on the
297
abdomen with the hand. Next, breathe in (inhale), as much as possible. The hand should
298
be pushed up by the abdomen. Once comfortable with the lying position, try the exercise
299
sitting and standing.
300

Lateral expansion is most easily learned when sitting or standing in front of a mirror with
301
one’s hands on each side of the ribs. Exhale using the hands to squeeze in the ribs and
302
then inhale, flaring the rib cage so that the hands are pushed outward. Don’t let the
303
shoulders rise during this exercise.
304
Wellness
305
Wellness is your ability to maintain a healthy lifestyle, good nutrition and life-affirming habits. A
306
physically fit body decreases musculoskeletal problems, prevents strain on the affected arm and
307
reduces the chances of getting lymphedema. Gradual conditioning of the body is
308
best. Maintaining an ideal body weight is important to control obesity which increases the risk of
309
lymphedema. Lifestyle changes consist of minimizing alcohol, caffeine, unhealthy and salty
310
foods. Smoking can cause serious health issues for breast cancer patients; therefore quitting is
311
highly encouraged.
312
CONCLUSION
313
Everyone’s risk for developing lymphedema is different and therefore the treatments
314
vary. Maintaining a consistent relationship with a lymphedema specialist combined with
315
following the guidelines and recommendations in this chapter will help provide decreased risk of
316
developing or making lymphedema worse and provide the best possible treatment outcomes.
317
Glossary
318
319
Bio-impedance – a measurement utilizing a small and slow electrical current which records the
time it takes to move through the body or specific tissues.
320
Biopsy – a small piece of tissue taken from the body for diagnostic purposes.
321
CDT – an abbreviation for Complete Decongestive Therapy.
322
Cellulitis – a bacterial infection of the skin and subcutaneous tissue.
323
Distal – near the end of a limb or body part such as an arm.
324
Edema – a term for swelling of any type.
325
Extracellular space – the space outside of the cells and the circulatory system.
326
Fibrosis –connective tissue that loses its normal elastic properties and becomes hardened..
327
Gradient – going from a lower pressure area to one of higher pressure or vice versus.
328
Gauntlet – a glove like garment without the fingers that only covers the hand.
329
Interstitial space – same as extracellular space.
330
331
Lymph node – a place where several lymph vessels join together. These nodes contain lymph
tissue which support the immune system.
332
333
Lymphedema – involves blockage of the lymph vessels, with a resulting accumulation of
lymphatic fluid in the interstitial tissues of the body.
334
335
336
Lymphoscintigraphy – a test done in a Nuclear Medicine Department where a radio-active
isotope is injected and then followed under a scanner as the isotope moves through the
lymphatic system.
337
MLD – is an abbreviation for manual lymphatic drainage
338
mmHg– is an abbreviation for “millimeters of Mercury” , a measurement unit for pressure.
339
MLB – is an abbreviation for multilayer bandages
340
Physiological swelling – swelling that normally occurs and is not considered a problem.
341
342
Primary lymphedema – lymphedema that occurs when a person is born with a deficient
lymphatic system. There is no known cause.
343
344
Primary tumor – the site of the original tumor. Proximal-- near the beginning of a body part such
as an arm.
345
346
Secondary lymphedema – lymphedema that occurs after the lymphatic system was working
normally. This may be due to trauma or illness .
347
348
349
350
351
Sentinel lymph node – the first lymphnode in a branch of lymphnodes. Biopsies are often done
on this node as if it is clean than all that drain into it are considered cancer free.
Vasopneumatic sequential gradient pump – a pump that causes pressure starting at one end
and slowly moves it in a particular direction.
352
Symptom Index
353
Hardness
354
Heaviness
355
Leaking
356
Opening
357
Redness
358
Stiffness
359
Swelling
360
Weeping
361
Wound
362
[Figure 9-1] The Lymphatic System
363
[Figure 9-2] Home compression pump. Copyright Lymphapress, reprinted with permission
Download