CASE STUDY Symptomatic Improvement of a Patient with Parkinson’s disease subsequent to Upper Cervical Chiropractic care: A Case Study Robert Bello DC ABSTRACT Objective: The purpose of this case study is to report the symptomatic improvement of a Parkinson’s patient undergoing specific upper cervical chiropractic care. Clinical Features: A 66-year-old female that had been diagnosed with Parkinson’s disease (PD) one-and-a-half years prior, entered a National Upper Cervical Chiropractic Association (NUCCA) clinic for chiropractic care, She had symptomatic complaints since three years prior, following an unbraced fall in which she landed directly on her face while doing the Cha-Cha during an evening of ballroom dancing. Her symptoms, which had been getting progressively worse, included a resting tremor in her left hand, fatigue, depression and rigidity throughout her extremities, especially in the third toe of both feet. Interventions and Outcomes: The various analysis techniques employed by the NUCCA doctor will be discussed in detail, including postural analysis, thermography, static surface electromyography, functional leg length analysis and a series of precision pre and post orthogonal-based cervical x-rays. After receiving a specific, light force NUCCA adjustment, the patient reported immediate symptomatic relief, which has persisted through the time this study was written. Conclusions: Although this case demonstrates the [far-reaching] possibilities of specific upper cervical care in nonmusculoskeletal cases, there is a serious need for additional research in order to make a multidisciplinary co-management approach to clinical care more viable. Key Words: chiropractic, NUCCA, Parkinson’s disease, upper cervical, subluxation, orthogonal Introduction respective countries are inflicted with this disease.2 Currently, there are thought to be over a million cases of Parkinson’s disease (PD) in the US and 100,000 new cases estimated annually.1 A European study comprising participants from France, Italy, The Netherlands and Spain deduced that an average of 1.6 people per 100 in their In 1997, the annual costs related to PD in the US alone was estimated to be $24 billion. Originally referred to as Shaking Palsy, the disease received its current name in 1817 from the British scientist James Parkinson. He was responsible for recording a list of what are currently delineated as the Private Practice of Chiropractic, White Plains, NY symptoms of PD, such as resting tremor, stiffness/rigidity, bradykinesia, depression, altered gait and dementia. 1 Parkinson’s disease, also called Paralysis Agitans, is a progressive neurodegenerative disease characterized by diminished dopamine producing cells within the basal ganglia. Nigrostriatal axons from the pars compacta portion of the substantia nigra connect within the striatum (globus pallidus and caudate nucleus) portion of the basal ganglia and are responsible for production of dopamine within the basal ganglia complex. The overall affect of decreased dopamine within this system will increase the activity of the globus pallidus, cumulatively inhibiting output to the ventrolateral thalamus, and hence the cortex, thus yielding a decrease in motor output. 3 One of the primary functions of the basal ganglia is to provide proper modulation of muscles by supplying an inhibitory mechanism in motor actions. When functioning optimally, this system ensures smooth motor patterns. However, with Parkinson’s patients, there is a disconnect in this coordination and dyskinesias as well as resting tremors are commonly present.4 Upon presentation of a symptomatic Parkinson’s patient, the dopaminergic cells are found to be 60-80% lifeless or functionally impaired.4 Although there are many questions unanswered regarding the origins of this crippling disease, a mix of epigenetic (gene expression) and environmental factors (toxins, trauma) have been demonstrated in the literature to be associated with the onset of PD.5-6 which is a synthetic precursor to Dopamine and is permeable to the blood brain barrier. Sinemet, the most common brand name prescription used, is a mix of Levadopa and a Carbidopa. Carbidopa is added to ensure that dopamine is not converted too quickly in the brain, which can result in too much dopamine produced and dyskinesias may occur. The biggest downside to Levadopa treatment is that the body tends to build tolerance and the effects have the tendency to become mitigated after few years of treatment. There are a host of other types of drugs whose effects range from temporarily increasing dopamine levels to decreasing the breakdown of dopamine within the synaptic junctions (ie. dopamine agonists, MAO-B inhibitors and COMT inhibitors).8-9 The two surgical interventions that are most currently employed are deep brain stimulation (DBS) and pallidotomy’s. DBS is a procedure where electrodes are implanted into different locations in the brain and electric signals theoretically stimulate the chosen areas to increase activity. A Pallidotomy is a surgical procedure that attempts to decrease activity in a portion of the Globus Pallidus by either heating or cooling surgically implanted probes until the surrounding tissue dies. The goal is symptomatic improvement of dyskinesias.8 Again, these procedures are not meant to be a permanent solution to PD, but to provide temporary symptomatic relief. Case Report Traditionally, when attempting to diagnose PD, a qualified physician will perform a litany of general physical and neurological examinations. Upon completion of these examinations, subjective clinical manifestations are recorded in order to gather relevant information. To categorize the progression of PD, the Unified Parkinson’s Disease Rating Scale (UPDRS) and the Hoehn/Yahr and Schwab/England scales are the most common surveys utilized. These surveys record responses to subjective questioning and ascertain levels of everyday functioning regarding movement and behavior tasks. Although there are currently no widely accepted gold standards for the definitive diagnosis of PD, experimental use of both Single-Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET) scans have been utilized. These studies quantify the remaining functional dopaminergic cells in the substantia nigra.4, 7 Parkinson’s symptoms classically occur in adults 55 or older, beginning unilaterally with a mild tremor and altered arm swing. Most commonly these motor symptoms will manifest bilaterally over time and are accompanied by other symptoms such as depression, fatigue, anosmia (loss of smell), constipation, diminishing facial expression, balance issues and shuffling gait.8 As the disease progresses, the inflicted individual may also experience pain, confusion, temperature sensitivity, sleep problems, sexual dysfunction and dementia. 8 Current drug and surgical therapies are not curative, but focused at temporary symptomatic relief to improve quality of life for as long as possible until more permanent solutions are uncovered. The most common drug treatment is Levadopa, History A 66-year-old female patient entered a NUCCA chiropractic office. She was referred in by a relative who had been researching health care practitioners that have demonstrated positive outcomes with disorders of the central nervous system. The patient had a family history of PD (her father and uncle had been inflicted with PD) and she was diagnosed by a neurologist when a PET test was performed using the nuclear tracer F DOPA. The test demonstrated bilateral decreased F DOPA uptake, with the largest deficit occurring in the right posterior Putamen. This was concluded by the director of the imaging facility to be consistent with early stage idiopathic PD. All of the symptoms started the day after a fall when the patient was doing the Cha-Cha during a ballroom dancing function. The heel of her shoe got caught in a gap in the floor and she fell straight onto her face without any ability to brace her fall. After it was ascertained that she did not need any emergency medical attention, her husband brought her home to rest. The next day it was apparent that she did not escape this fall without incident. After getting up and out of the house, she and her husband immediately noticed that she was limping with the left leg and she had an inability to swing her left arm. This alarmed the couple and so began a two-year search that led them to internists, neurologists, psychiatrists, holistic practitioners and the like without any definitive diagnosis. This seemingly endless process of attempting to determine the cause of her symptoms finally came to a halt 8 months later when the patient had PET study performed and it was determined that she had a loss of dopaminergic cells that was consistent with PD. In those two years of searching for a diagnosis her arm became much worse and she could hardly use it. A litany of other symptoms had emerged such as depression, resting tremor in left hand, fatigue, rigidity in upper and lower extremities, especially in the third toe of both feet. Traditionally, the NUCCA doctor will determine from the postural evaluation and leg length assessment if the patient is a candidate to move forward with further x-ray assessment. Relying on the utmost precision, the NUCCA doctor will take three x-rays from very distinct vantage points (frontal, horizontal and sagittal) in order to obtain a three dimensional study of where the atlas vertebra is exactly positioned in relation to the skull above and the remainder of the cervical spine below. After being diagnosed with PD the patient was put on Sinemet (Levidopa/Carbidopa), which did not provide the patient any perceived symptomatic relief. When interviewed for this case study the patient purported that she was told that she had been on a time-released prescription of Sinemet, but just recently found out she was not. At the time, the lack of symptomatic fluctuations made sense to her because the dosage she was taking was supposed to be released throughout the day and maintain her symptoms at constant levels. The fact that she did not have changes in her symptoms throughout the day, when she should have normally because she was supposed to be re-dosing, made her recognize that the administration of this medication did not affect her symptomatically. A very precise line drawing analysis will then be performed that will determine the location and severity of the misalignment. The measurements are converted into a listing, which gives the doctor the specific side and degree of misalignment as well as the exact direction of force needed for the subsequent correction. The doctor grabs the backside of his wrist and uses the skin around the pisiform bone on the hand closest to the skin of the patient as the interface point between the doctor and patient. Examination When the patient arrived in the NUCCA office, she filled out an intake form listing all of her signs and symptoms and had a brief consult with the doctor. The patient was then sent to an examination room where several thorough tests were conducted, namely a range of motion study, postural analysis, functional leg length test, thermography and static surface EMG (electromyography). She demonstrated a left leg deficiency of a half an inch, high right shoulder, high left ilium and right head tilt. The Insight Millennium Subluxation Station was used to assess paraspinal heat asymmetry and muscle imbalance. The thermography exam demonstrated thermal asymmetry down the entire right side of the spine with the greatest difference located at the C1 vertebra. The static surface electromyography showed bilateral hypertonic musculature in the C1 and C3 regions and bilaterally in the area of the sacrum. The program then puts all of the figures together and computes a total energy expenditure value, which when equaling 100 means that the nervous/musculoskeletal systems are running efficiently. The patients total energy expenditure value was 273.85, which exemplifies that her body was running very ineffectively. The results of these studies demonstrated a pattern that is consistent with interference to the nervous system (in chiropractic referred to as a subluxation). These findings then gave the doctor enough data to progress with the remainder of traditional NUCCA protocol for analyzing the location and severity of the suspected subluxation. NUCCA chiropractic care The NUCCA system is a chiropractic protocol that specializes in finding misalignments in the first cervical vertebra. The NUCCA practitioner always uses the x-rays to determine where to precisely contact the patient on the side of the neck so to be directly over the transverse process on the lateral aspect of the atlas, which lays about an inch beneath the skin. The objective of the NUCCA practitioner is to create just enough force to overcome the resistance created by the misaligned vertebra. The doctor administers several light force maneuvers in the direction of calculated line of necessary correction until the atlas is back in place and the proper correction of the misalignment has been accomplished. The NUCCA doctor will then recheck functional leg length discrepancy as well as posture. If the doctor feels that the post adjustment assessments have demonstrated that the subluxation has been reduced or removed, a post x-ray study will be performed. When comparing the results to the pre-adjustment x-ray study, it can be determined if the correction of misalignment has been objectively evidenced by bony alignment changes. In this case the patient received the adjustment and was allowed to rest on the NUCCA adjusting table while the doctor left the room for several minutes. The patient stated that she had felt a warm, flushing of her face. She also described the feeling felt throughout her body as compared to the sensation of muscular relaxation one experiences when making and holding a very tight fist then opening it up and feeling the release. After the doctor came back in the room, he determined that her reaction to the adjustment (her leg length inequality was now balanced and her postural assessment had positively changed) warranted a post x-ray study to be conducted. Upon performing post x-ray line drawing analysis, there was a correction in the alignment of her atlas to the skull and to her cervical spine that was objectively measurable. The πhorizontal planes of the atlas, the skull and cervical spine were all restored to parallel, in respect to each other, and additionally created right angles with the central vertical aspects of the skull and cervical spines, which is referred to as “orthogonal” in various chiropractic techniques. From the NUCCA doctor’s perspective, this is the ideal position for theses structures to lie and is the final product of a concise analysis and precisely implemented vector driven NUCCA adjustment. The patient stated from this point on that the vast majority of her symptoms have completely gone away. The exception is her third toes on both feet are still rigid on occasion. She stated that her depression was totally gone and her energy came back, her coping skills returned, her constant tremor was gone, all the tightness in her muscles had ceased and she now had regained all use of her left arm and leg. She simply put it, “I have my life back.” She has been returning regularly to the doctor’s office to be analyzed to make sure her body has been holding her corrected alignment and receiving adjustments only if determined that she is subluxated. Objectives of Analysis Functional Leg Length Assessment Functional leg length assessment is an analysis procedure used by many traditional chiropractic techniques to assess the overall health of the nervous system. Through research efforts this procedure has been evidenced to have high degrees of inter and intra-examiner reliability as well as validity as an analysis tool.10-12 The theory states that when there is an imbalance to the nervous system this causes a subsequent hypertonicity of the large muscles of the pelvis, which will potentially draw one leg short.13 Due to the various connections of the spinal cord via the dentate ligaments to the surrounding bony structures of the upper cervical neural canal, it is hypothesized that during a misalignment of the atlas vertebra, the spinal cord can become tractioned.13 Thermography and Static Surface Electromyography Thermography is a diagnostic tool used to read paraspinal skin temperature to assess the functioning of the autonomic nervous system. According to Uematsu et al, “The system is governed by the autonomic nerve impulses generated from the hypothalamus and the brain as a whole. The system is both anatomically and physiologically symmetrical.”20 So upon running the thermal scan down the skin over the spine, the Insight Millennium computer program outputs a diagram of a human torso and uses colored bars on opposite sides of the spine to depict location and degree of asymmetry. The white represents within normal physiological limits, green is one standard deviation from normal, blue is two standard deviations from normal, red is three deviations from normal and black is over three standard deviations from normal. As long as proper protocol is followed, thermography has been demonstrated to be reliable and valid in assessing the autonomic nervous system within an office setting.20, 21 Static surface electromyography is an assessment of the paraspinal musculature that is focused in determining possible asymmetrical contracture, muscle splinting, abnormal muscle recruitment patterns and severity of the particular condition. 22, 23 Demonstrated to have inter and intra-examiner reliability, this technology is often used by chiropractors on the first visit to measure the current state of a patient’s paraspinal musculature and then again during ongoing assessment exams to correlate with the care the doctor has rendered.22-24 With myopathology being considered as one of the main components of the subluxation, electromyography is an essential tool for the chiropractor to assess the proper functioning of the nervous system.14 Pre and Post X-ray Marking System and Analysis Subsequently, the lateral structures of the cord become compromised, namely the spinocerebellar tract. The most lateral fibers of the dorsal spinocerebellar tract are responsible for the larger muscles of the pelvic girdle so it is thought that even the most minimal mechanical stress caused by a minor bony misalignment of the upper cervical spine can cause the legs to have a functional inequality.13-14 It has also been purported that dysfunctional muscle physiology, such as chronic muscle contracture or shortening as seen in subluxation, can cause the muscle spindles to relay corrupt afferent messages to the central integrating centers (referred to as dysafferentation), which can result in poor efferent output and cause a vicious cycle not only in the musculoskeletal system, but can involve the viscera as well.14- NUCCA, along with the vast majority of upper cervical chiropractic techniques, employs very precise x-ray analysis procedures that allow for a change in objective criteria, the juxtaposition of bones to one another, to be demonstrated post adjustment and be correlated with symptomatic improvements.25-28 These films are a key, reliable foundation which allow the practitioner to demonstrate postural changes that result moments after the adjustment.27, 28 Once the doctor knows that the correction performed results in the proper orthogonal positioning, they can be confident that their x-ray analysis has produced the precise information they were searching for and that the symptomatic improvements are due to the correction of the subluxation. 18 Discussion This is particularly valid when considering atlas subluxations, because the suboccipital muscles that attach the top vertebra to the surrounding bony structures—oblique capitus inferior, oblique capitus superior and rectus capitus posterior—are the most richly concentrated per gram of tissue with muscle spindles than any other muscles in the body (242/gram, 190/gram and 99/gram respectively).19 Due to the lack of known causes of PD, the abrupt symptomatic changes that followed the NUCCA adjustment in this case warrants discussion as to what possible mechanisms could be responsible for such drastic relief. When addressing PD and upper cervical chiropractic, reference must be made to Elster’s work, in which she cites dysafferentation and cellular hibernation as possible mechanisms affected by the upper cervical adjustment.29-31 Chronic facilitation of the dorsal horn has been demonstrated to spill over into the lateral horn, which increases sympathetic tone, causing arterial constriction and ultimately cerebral hypoperfusion.16-18, 32 This occurs by way of a chain reaction of faulty mechanoreceptive afferent information, in this case possibly resulting from proprioceptively-rich muscles held in a sustained contracture due to the atlas misalignment. This appears to be a plausible mechanism for cerebral hypoperfusion seen in PD because the basal ganglia would be affected as a result of reduced blood flow from the internal carotid artery. Consequentially, the internal carotid artery supplies the middle cerebral artery, which divides into the lenticulostriate branches—the direct blood supply to the basal ganglia. 33 Terrett’s cerebral hibernation theory, based on the research of Milne and Gorman, does make a conceivable argument for the idiopathic nature of particular cases of PD. The progressive symptomatology is proposed to result from a cellular dysfunction (hibernation) that precludes cell death when in the presence of ischemic conditions.34 With the development of precision advanced imaging technologies, there has been an abundance of research focused on locating the presence of cerebral hypoperfusion in PD patients. This research has linked exact locations of blood supply deficit to specific symptoms associated with PD including minor depression, tremors, memory loss, postural instability, general motor deficits as well as the duration of the disease.35-39 There is also mounting evidence one of the mechanisms of efficacy of DBS (specifically in the pedunculopontine nucleus [PPN] region) in attaining symptomatic relief is due to the incremental increase in regional blood flow that results from the procedure.40 The ability of the nigrostriatal axons to become functional upon the restoration of proper blood flow followed by the correction of the atlas subluxation is a promising theory that requires more research to satisfy requirements in becoming valid and widely accepted throughout the scientific community. Classically explained by using the common computer jargon, “garbage in garbage out,” the second possible mechanism responsible for the drastic symptomatic improvement seen in this case is based on the theory of dysafferentation. Mechanoreceptors and muscle spindles are continuously giving feedback into the cerebellum and cerebral cortex to appropriately modulate activities ranging from simple movements to an intricate dance performed by a ballet dancer, as well as cognition and emotion.14, 18, 43-44 With the patient in this case having a family history of PD, this gives her an epigenetic predisposition to developing PD after the age of fifty. This is especially true in the event of a trauma like she experienced, which acts as an environmental trigger. This theory contends that subsequent to the fall, a maladaptive neurological cascade occurred, which resulted in the start of a vicious cycle where the basal ganglia’s dysfunction was caused and then perpetuated by faulty mechanoreceptive input via the injured upper cervical spine. The administration of the properly performed NUCCA adjustment then stimulated a mechanoreceptive influx to both the cerebellum and cortex simultaneously.3 This afferent input then fired both the cerebellum and cortex directly into the basal ganglia and had the effect of activating the neuronal pools within the basal ganglia, which resulted in the restoration of proper basal ganglia function.3 Although these scenarios are deduced using proven scientific concepts, they are both theoretical until further research can be conducted that contains greater levels of evidence and the ensuing results are accepted throughout the research communities at large. Conclusion In the search for mechanisms of etiology and effective interventions for idiopathic neurodegenerative diseases such as PD, it is encouraging to see chiropractic’s current potential contribution, as well as the future implications it may continue to have with evolving research. The fact that this is a case study predetermines any results attained incapable of surmounting the status of anecdotal evidence. Another unfortunate weakness of this case study is that the patient did not get a follow up PET study to determine if there was any quantitative change in the properly functioning dopaminergic cells post adjustment. With current, exciting NUCCA research documenting whole body physiological benefits (reduction of blood pressure equal to that of two prescription drugs) resulting from the precise correction of an atlas subluxation, it is apparent in the logical mind that a systemic effect is rendered with this specific chiropractic protocol.41 In the research world, there are hierarchal levels of evidence. Although a case study is considered Level 4 research (RCT is Level 1A), it is likely that if the majority of Chiropractic cases that had symptomatic improvements over the years were documented, there would a database of information to extrapolate useful data to further our efforts. 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Brain. 1998 Apr;121( Pt 4):561-79. 44. Schmahmann JD, Caplan D. Cognition, emotion and the cerebellum. Brain. 2006;129(Pt 2):290–2. Table 1 – Figure 1 -- Pre and Post Imaging