Nodes And Their Cure
I use the scale of E as a means of revealing to the ear points wherein
the voice shows signs of failure. I use this scale because within it lie
all the principal resonances involved in voice-production. By this I
mean that somewhere between the interval G# to C# an oral resonance is
developed in the majority of voices. This seems to be coincident with
the action of the lips, the tongue and the soft palate, and the other
muscles that go to increase or to decrease the size of the oral cavity.
From C# to E above middle C the principal changes occur which contribute
to the development of the nasal resonance. Some rare voices, however,
continue their oral resonance as high as F# before changing. It has
occurred to me so often in the course of my practice that a peculiarly
apt reason exists for making E the foundation-note of the test-scale
employed in the operating room, that I lay particular stress upon it. It
has seemed the most easeful note for the patient to sound, whatever his
vocal condition, and I have been tempted to call it the "nature tone,"
because it may be said to sing itself. At least, it can be sounded with
naturally open throat and without calling into perceptible use the
multiplied enginery of muscular forces which are required for the
formation of the higher tones of the scale.
Consider for a moment this enginery of muscular forces at the command of
the singer, and which his intelligent and ripe knowledge must guide. The
muscles used in voice-production may be divided as to action and
location into ten groups. In these ten groups there are one hundred and
seventeen individual muscles. Three of these act alone. One hundred and
fourteen act in pairs, making fifty-seven pairs. Again, these muscles
are controlled by nerves, some of which act alone and others in
combination. In one instance, a single nerve presides over two large
groups of muscles. Then, in still another instance, two separate nerves
are required to control the action of one small group--the palate group.
The distribution is as follows: Single muscles, 3; muscles in pairs,
114; groups of muscles, 10; nerves acting alone, 17; nerves acting with
others (eight groups), 88.
By taking these figures and increasing them in arithmetical progression,
it is possible to calculate what a multiplicity of nerve and muscle
effort is involved in a sneeze. Everything that appertains to the vocal
mechanism is spasmodically involved at once, and the enormous sum total
of muscle and nerve movement, individualized, is 465,120. This shows how
absurd is the theory of conscious control of the machinery of
voice-production. As I have frequently pointed out, the adjustments of
the vocal tract to the tone to be produced are responses to the will,
physical reflexes of the tones which the singer hears mentally; so that
voice is mental audition converted by responsive physical adjustment
into audible tone.
Teachers and singers are aware that wrong methods of tone-production
result in nodes on the vocal cords. The node, therefore, is one of the
most familiar forms of vocal catastrophe.
In its simplest form the node is a superficial swelling on the edge
of a vocal cord, sometimes appearing on one and then on the other and
ofttimes on both, dependent entirely upon causation. For instance, the
cause might be simply a severe spell of coughing, and this, of course,
might befall a person who was not a singer at all. It has been known
to occur to animals. The node is, in fact, an oedema or dropsy, a
swelling from effusion of watery fluid in the cellular tissue beneath
the skin or mucous membrane. This oedema appears on the edge of the
vocal cord, as a slight tumor or swelling filled with water. If
aggravated by continued use of the voice, it may develop and become
exceedingly dangerous, by extending inward to the real tissue of the
cord itself. The membrane is thickened by the watery secretion, and
much the same thing happens as in the case of a pinching bruise or a
blistering burn. Nature's cure for this state of things is by absorption
of the fluid contents and a consequent diminution in the size of the
node until finally a normal condition of the cord is restored and the
voice returns in all its fullness. In the formation of the node it is
worth remarking that the coughing node may appear at any point on the
cords. It shows first at one point and then at another. The node caused
by vocal weakness or abuse of the natural powers, however, displays an
exasperating, and sometimes puzzling, affinity for particular portions
of the vocal cords. It is generally found protruding from the anterior
and middle third on one or the other side of the glottic opening, or on
both, in chronic cases. The other nodes may be found at any place on
the cord. In fact, it frequently happens that the coughing node, and
what for convenience may be styled the "vocal node," are simultaneously
present, each to be distinguished by its well-defined location, although
produced by totally different causes.
There are cogent reasons for the affinity of the vocal node for certain
fixed positions on the cords. They can be explained by the trick of the
vibrating string and bit of paper. If the paper is laid upon the string
at a certain point, it will be flirted away; while at another chosen
point it will slip unagitated to the floor. Inasmuch as the vocal cords
are subject to the same laws of vibration, the lesson drawn from the
string and the bit of paper applies to them, the node taking the place of
the paper. Note, however, the difference. The string is single, and there
is no attrition. If there were two strings, the bit of paper might be
caught and twisted in the miniature whirlwind of opposing vibrations. But
the vocal cords are wedded in phonation, and by their attrition the node
is formed. Very often strands of tough mucus appear spanning the chink or
slit between the cords when they are drawn up in tone-production. The
presence of these bands of mucus is an assured precursor of the node.
Often they indicate the existence of a node which is hardly perceptible
through the laryngeal mirror. The mucus is nature's effort to relieve
the attrition, and so to ease the inflammation at the point of
difficulty. The obstinacy with which the nodes caused by vocal disaster
thus form in the anterior and middle third of the cords may be explained
as owing to the presence in the vocal cords of a point which may be
called the centre of resistance for the intrinsic muscles, and indicates
that they are caused, in the majority of cases, by undue and improper
muscular effort in tone-production. Consequently, the necessity for
the most painstaking care on the singer's part to avoid singing under
unfavorable conditions. A trifling over-exertion at an afternoon
rehearsal in a cold hall, too much talking on the train, a bad night's
rest in a sleeper berth, all may conspire to weaken the voice for the
time and lay it open to attack. Under such circumstances, particularly,
it is necessary for the vocalist to exercise large discretion and to aim
for a conservative middle course, and especially so in a preliminary
rehearsal.
Another cause of the node is a lack of cordal coordination. Were the
human form perfect, both cords would be equally strong. As a matter of
fact, in my own experience, I have found that the major portion of nodal
formations appear on the left cord, indicating that it is the weaker.
The fact that one cord is slightly lax while the other vibrates at full
tension along its face causes trouble. Another source of difficulty is
subglottic, owing to inflammation of the mucous membrane in the trachea,
which extends upward and involves the cords. The inflammation, passing
upward, may easily affect the voice. Such inflammation is discovered by
a tickling sensation in the trachea, causing a dry, harsh cough about
the third day after a cold has found lodgment "in the head," as the
phrase goes.
The node has been the cause of vocal catastrophe from opera houses to
concert halls, yet a reasonable amount of precaution will minimize the
chances of attack. Singing in a room where there is smoking is a
prolific source of node formation. Breathing dust-laden air, continued
effort to carry on conversation on the cars or amid street noises, are
fruitful causes of vocal disorder.
The mucous membrane of the vocal cords obeys natural laws in
restoration. A node may disappear in three days, if not teased with
effort. More often, however, it requires from seven to ten days for it
to disappear without treatment. If the singer foolishly persists in
using the voice, the node will extend into the cord tissues, and result
in a most unfortunate condition. The cord loses its elasticity. It
refuses to respond. It will neither act nor will it consent to be acted
upon. It is in a state of collapse, and the voice for singing purposes
has gone, never to return.
Let me illustrate what rest will do for a node. A singer came to me with
a node of three months' standing, on the left cord. She had been singing
with her teacher in the regular course of her lessons at an unfortunate
time, when, too, she was vocally weak. In singing up the scale, and
at the C (as nearly as she could remember), she became hoarse, and, as
she described it to me, "the voice had a hole in it." Throughout the
remainder of the lesson, unless she exercised great care, she would
always break at the point named. Her nose seemed stuffy, and she
compared her nose and throat to a cornet lined with velvet. After the
break, and for the remainder of the lesson, her voice was husky. Her
teacher advised her to seek expert advice. Previously, the voice had
been clear, though she was a novice in singing. After remaining away
from her lessons for two weeks or more and finding that recovery was not
rapid, she came to me. The node could be plainly seen on the left cord.
Before examining her, I tried the voice with the E scale, wrote down
the diagnosis and handed it to her to read. My written conclusions were
verified with the laryngeal mirror. I found no trouble except with the
left vocal cord, the node being in the anterior middle third. On the
summit of the node the mucous membrane appeared very red, budded, and
almost warty. I cocainized the cord, and immediately applied pure alum
in solution to the node itself, but to no purpose. This treatment was
continued for two weeks, without any perceptible change for the better.
Then I ordered the patient to remain quietly in a closed room; she was
to see no one, she was not to talk at all, she was not to laugh. As
harassing as was the experience, she faithfully observed the directions,
and on the fourth day every vestige of redness had disappeared. Only
a slight elevation remained on the cord where the node had been. The
treatment was continued three days longer. At the expiration of that
period no trace of the node could be seen. Now no one would suspect that
a node had once affected her voice. Experiences like this indicate why
I counsel against use of the voice under diseased conditions.
As a general proposition, all throat spraying is dangerous. A New York
singer, suffering while on a concert-tour from a case of sub-acute
laryngitis, sought advice from a physician who honestly tried to aid
him, but shot wide of the mark through injudicious use of a spray, in
which he used menthol and eucalyptus, a combination much affected by a
certain well-meaning class, and which for a time gives to the throat
a delightful sense of coolness. The singer became afflicted with a
violent, explosive cough, which caused the formation of a node. He gave
up singing, losing nearly $1,000 in engagements. He went to his own room
and to bed. He remained in his room for three weeks. The temperature was
carefully watched. He did not expose himself in the slightest degree,
nor did he use his voice. The result was a perfect cure.
Another case is that of a church singer whose throat during a religious
festival service became filled with the smoke of incense. The irritation
caused a troublesome cough, and she lost her voice entirely above the
top F#. It required fourteen days to effect a cure. She stopped singing
for six days and then sang in church, with the result that the
difficulty returned, augmented. She sensibly rested the succeeding week
and perfected a cure. Rest did far more than any amount of medicine,
however it might have been administered.
Paralysis of the vocal cords constitutes a second form of vocal
catastrophe. It should need no definition. In reality, however, the
paralysis does not lie in the cords themselves, but in the leading
muscles that control in phonation. There are many forms of this
particular example of vocal catastrophe, though I am now dealing only
with those which are liable to attack a singer, and which are most
frequent in my own experience.
With the singer one form is common, viz.: paralysis of the left adductor
muscles, or those which inspire the arytenoid cartilage in drawing the
left vocal cord forward to meet its fellow for the production of tone.
No one can ever forget the sight presented by the left cord in its
helpless condition: the arytenoid, tipped with its cartilage of
Santorini, extending far over the median line of the glottis and drawing
after it the right vocal cord in a vain endeavor to put it in position
where it can aid its injured mate.
The paralysis may, of course, occur on both sides, and then it is that,
on the side which is most exercised, there is felt a sense of distress,
of pain and sudden fatigue. This condition generally arises from
prolonged singing, and many of the cases I have seen have been the
result of overwork during Easter and Christmas; and all of the cases
which have come under my observation were associated with rheumatic
constitutions. Fortunately for these singers, when the conditions were
made known to them, they were in a position, or at least were perfectly
willing, to rest, because of the fear that a knowledge of their
condition instilled. Indeed, the situation is always one to cause
serious alarm. The beautiful symmetry of the arytenoids is impaired and
the agility of the voice is destroyed. If the singer persists in his
vocation, total disability results. As a rule, complete rest is enforced
by reason of inability to sing at all. If the voice is continued in use,
the affection becomes permanent and there is one more case of
irremediable vocal collapse. The remedy is rest, and that, too, before
the disease has passed recoverable ground. If the singer experiences
pain on either side of the thyroid cartilage, or on either side of the
Adam's apple, then let him by all means have a care, for those are the
symptoms of this peculiarly menacing form of paralysis. In the voice a
palpable hoarseness is manifest. The voice becomes "fuzzy" throughout
its entire compass. A pronounced disability to make a crescendo
arises, and when the effort is made (for in the described circumstances
use of the voice is attended with undue effort), the tone becomes coarse
and uncontrollable. The range of the voice is lessened and the singer
finds difficulty in reaching the upper tones. In the general
debilitation the singer tries, or rather is compelled through weakness,
to poise the voice from the cords themselves and not from the diaphragm.
Of the other forms of vocal-cord paralysis there is one of great
interest, known as hysterical paralysis. It is usually only temporary,
and is sometimes produced in singers whose nervous condition grows upon
itself until the system passes into the trying disturbance diagnosed by
the rudely critical public as "stage-fright." Artists of marked
pretension have been compelled to abandon a public career because of
this affliction. There are other examples of it even more difficult to
understand. I have in mind a case of a singing-teacher in a conventual
school, who was under a peculiar strain of preparation for the
commencement exercises of the school and of her own class and their
appearance in public. She brought her class up to the appearing-point.
Then her nervous system gave way, and when she came to me she was
absolutely voiceless. Sometimes in coughing her vocal cords could be
seen to move. With rest she recovered, but she has a recurrent tendency
to the same trouble every year. The case would seem to illustrate
the uselessness of all effort on the part of the person so affected
permanently to overcome it. The remedy is at hand, however, in numerous
cases, in resort to a careful and uninterrupted upbuilding of the
nervous system.
I will mention some other cases of vocal disorder and cure. An operatic
tenor came to me with a tendency to break in scale-sounding, and with
a nasal or catarrhal color to all his tones above E. I found attached
above and back of the soft palate a mass as large as a hickory nut and
completely blocking up the dome of the pharynx. A little cocaine was
applied, and with a single sweep of the curette he was minus an adenoid
on the third tonsil, a tonsil of Luscha. Within ten days his voice was
completely restored.
Sometimes the physician is obliged to seek far for the cause of
catastrophe to the voice. A fine and thoroughly well-trained tenor
singer came to me with a singular tremor in his voice. The entire scale
was tremulous. I found nothing the matter with any part of his vocal
tract save that, on closely studying the condition of his mouth, there
was a rapid muscular contraction of the soft palate and surrounding
tissues. This led me to examine him from head to foot for possible
nervous disorder, of which, however, I found no trace. Then, satisfied
that there must be a more remote physical cause, I pushed the
examination further and discovered traces of kidney affection. He was
successfully treated for this and, with its cure, his voice also was
restored. This case shows the close relationship between parts of the
physical constitution and the voice, and illustrates the importance to
the singer of a generally healthy physical condition.
Another case illustrates a further and somewhat peculiar phase of the
subject. From the posterior nasal passage of a singer I removed nine
large adenoid tumors. He was a tenor, and within a few days his upper
tones were perceptibly freer and fuller. He had recently changed his
instructor; and subsequently I found that he was attributing to this
teacher the marked improvement in his voice. The physician was receiving
no credit as a voice-builder whatsoever from either of them--which shows
that in addition to a keen knife, the specialist should also possess a
keen sense of humor.