Posts Tagged ‘paralysis’

Week in Review (May 8 – 13, 2011) The Eye Opener Health, Law and Medicine Blog

Saturday, May 14th, 2011

From Brian Nash (Editor)

It was another busy week of blogging at Nash & Associates.

The topics of the week were wide-ranging: special needs kids and man’s best friend; Ovarian Cancer – tips for getting the best care; school’s responsibility for informing parents when a child is in danger from themselves or others; stroke – particularly in the African-American community; and the role of social media in general and in our firm for getting the word out about wonderful charitable and civic organizations.

This past week also saw the posting our a new White Paper by Marian Hogan on a very real problem in many of our nation’s hospitals – patient controlled analgesia (PCA). Marian’s piece explores the risks and benefits of this great form of pain relief for hospital patients. Unfortunately, many of the practices in hospitals raise serious concerns about the level of monitoring of PCA in terms of patient safety.

See what strikes your fancy and then click the blog’s title, photo orread more” to view the entire article. Enjoy – and – as always – thanks for stopping by!

PCA Patient Controlled Analgesia: Is it Safe in Today’s Hospitals?

Author: Marian Hogan

Patients who undergo a surgical procedure in a hospital are often placed on intravenous pain medications after the procedure. These medications, such as morphine or other opioid narcotics, are frequently delivered by a pump mechanism that can be regulated by the patient. This is termed a PCA or patient controlled analgesia pump.

Studies have found that there are roughly one half million or more in-hospital cardiopulmonary arrests (IHCA) in the U.S. every year and that approximately 80% of those patients who suffer an in-house cardiopulmonary arrest do not survive, or sustain permanent and severe brain injury if they do live. Read more>>

 

Dogs a huge help for special needs kids

By:  Mike Sanders

Dogs and kids just seem to go together. Whether it’s running around the yard and roughhousing or just sitting quietly watching TV together on the sofa, dogs seem to gravitate toward kids. For some special needs kids, however, dogs are more than just a friend and play buddy; they are actually a daily caregiver.

The idea of service dogs for disabled children is a little-known yet burgeoning niche in the world of special needs. Everyone knows about service dogs for the blind. I have to admit that until recently, I had never even considered service dogs for other disabilities, let alone children. Then a friend of mine whose son is autistic mentioned that she was thinking about getting an autism service dog for her son. I was puzzled. Her son suffers from sensory processing disorder so I didn’t understand what a dog would be able to do for… read more>>


 

Ovarian Cancer

 

Ovarian Cancer – five tips to make sure you get the medical care you need

By Jon Stefanuca

Did you know that more than 21,000 women are diagnosed with ovarian cancer in the U.S. each year? An astonishing 15,000 women die from ovarian cancer each year. Despite numerous advances in healthcare, the mortality rate for ovarian cancer has not improved in the last 30 years. Simply put, ovarian cancer is the deadliest of all gynecologic cancers. If the cancer is diagnosed in its early stages (i.e. before it spreads to other organs), the five-year survival rate is . . . read more >>

 

School’s Duty to Parents: Is Your Child at Risk?

By: Sarah Keogh

Recently, I have been thinking quite a bit about schools. My son is going to start kindergarten in the fall and my daughter just started preschool last week. While both of my kids are still little, over the years children end up spending many of their waking hours each week at school. The school becomes as much a part of their lives as home for most kids. As parents, we put trust in the school that they will be keeping our children safe and healthy while we are not around to supervise. But do the schools recognize that trust and live up to it?

I was recently made aware of a situation involving a teenager who was having some health concerns. Her parents had first noticed that their daughter… read more >>

 

Brother, will you help me? If you don’t this stroke might kill me

By: Jason Penn

Mother’s Day is in the rearview mirror.  This past Mother’s Day someone told me a story about how their grandmother fell ill.  It was the holiday season, and as she climbed the ladder to decorate the tree, things took a tragic turn. She stumbled, lost her balance and fell.  She seemed “off.” A few short hours later, at the hospital, it was revealed that she had suffered a stroke. Read more >>

 

Social Media and Spreading the Word about Those Who Do So Much Good for Those in Need

By: Brian Nash

Recently my wife and I attended an event held by a newly formed Baltimore organization known as Rebels with a Cause. Frankly, I have to admit, I hadn’t heard of this organization before. According to the event flyer published by the person we are sponsoring, this is a local group of bicycle riders who are joining the Ride for a Feast 140 mile bike ride from Ocean City to Baltimore, MD. (Whew! Glad I’m only a sponsor).

Saturday night came and we traveled to Gertrude’s, a restaurant at the Baltimore Museum of Art which provided the venue for a pre-event gathering of this group of dedicated, good-cause-driven riders. Read more >>

 


Sneak Peak of the Week Ahead

Some topics we’ll be covering next week….and then some…

  • the “debate” rages on about breast milk.” Jason Penn takes an interesting look at this issue in light of some recent, fascinating work done at Johns Hopkins.
  • a report of a new HIV study, but what are the possible implications for medical implications under controlled studies
  • acquired brain injury – what is it all about – what is its impact?
  • … and more….

Have a great weekend, Everyone!






Spinal Stroke: An atypical cause of back pain

Monday, April 11th, 2011

When one hears the word stroke, what typically comes to mind is a “brain attack” with slurred speech or numbness and weakness of the right or left side of the body. Well, the spinal cord is considered part of the central nervous system and is truly a direct connection to the brain. All of the data received through nerve endings in our bodies passes through the spinal cord to be interpreted in the brain. Likewise, the messages our brain is sending to our bodies, both consciously and unconsciously (e.g. walk, run, write, speak; and digest food, breath, increase heart rate, etc.), travel through the spinal cord to our peripheral nerves.

The spinal cord is a vital structure that has its own blood supply, much like other organs, including the heart and brain. Just like the blood vessels supplying the other organs, the spinal arteries, especially the anterior spinal artery, can become occluded (i.e. blocked) resulting in spinal cord ischemia or infarction. The nerve information can no longer travel to and from the brain or the body freely; it is interrupted. This equates to a “stroke” of the spinal cord with resultant numbness, weakness, paralysis, as well as bowel and bladder dysfunction below the level of the infarction/stroke.

What causes a “spinal stroke”?

The most common cause of spinal stroke is the same as that for brain stroke or heart attack……atherosclerosis, an accumulation of cholesterol plaque in the arterial wall that ultimately blocks the artery. No blood flow means no oxygen or nutrients to the cells and tissues of the spinal cord resulting in them “starving to death.” There are other causes, as well; anything that compresses one of the supply arteries can block blood flow to a region of the cord and result in “stroke.”

Tumors, either primary or metastatic, can compresses blood vessels and other structures as they grow in the spinal region. Anterior disc herniations and disc ruptures or bone fragments from traumatic fractures of the vertebrae can compress blood vessels in the immediate vicinity.

Collections of pus from infectious processes can interrupt the blood supply either by compressing a vessel or disintegrating the blood vessel.  Small pieces of blood clots (called emboli) can break-off from larger clots (called thrombi) and circulate through the bloodstream until they get “stuck” in a smaller vessel somewhere else in the body; the spinal artery is just one location. Other systemic diseases can result in vasculitis, or an inflammation of the blood vessel, that leads to clotting and occlusion of that vessel, and the spinal artery is just one of the vessels that can be affected.

Surgery and spinal stroke

Interestingly, inter-abdominal and spinal surgical procedures can also lead to spinal cord ischemia and stroke. Individuals undergoing repair of an aortic aneurysm or iliac-to-femoral artery bypass often require “cross-clamping” of the aorta above the level of the surgery. The “golden hour” referred to in heart attack victims can also be applied to other vascular ischemic conditions, like spinal artery ischemia; if complications arise and the cross-clamp time is too long, it can result in ischemia from which the patient may never recover, remaining paralyzed for life. Similarly, an aortic dissection can disrupt blood flow to the smaller arteries branching from the aorta to feed the spinal cord leading to ischemia.

Spinal surgeries take one of two approaches, anterior (going through the belly) or posterior (going through the back). Because of the proximity of all of the vital structures, including the major blood vessels, small errors or retained fragments can lead to occlusion or disruption of the spinal blood supply.

Who is at risk for spinal stroke?

Those individuals with risk factors for heart disease or brain stroke are also at risk for spinal stroke since they share a common etiology. This includes those individuals with poorly-controlled diabetes, high cholesterol or dyslipidemia, abnormal clotting of the blood, peripheral arterial disease or history of aneurysms.

What are the symptoms of a spinal stroke?

Most patients present with sudden, severe pain, much like a heart attack, in either the chest or the back or both. This pain is typically rapidly followed by numbness, or loss of pain sensation and temperature sensation, in the extremities below the level of the stroke. Because of the anatomy of the blood supply, vibration sensation and position sense are maintained in the affected region since the posterior region of the cord has a different blood supply. As the spinal stroke progresses over an hour or so, the extremities affected become weaker and weaker, often experiencing paralysis, and the bowel and bladder lose their innervation leading to dysfunction and incontinence. This is a fairly rapid progression, much different that other myelopathies.

What is the treatment?

Due to the relative rarity of this condition, not many studies have been done regarding treatments. Unlike “heart attack” or “brain attack,” there are no standards of care except for aspirin therapy and (potentially) anti-platelet therapy after the stroke has occurred. More often than not, there is a delay in diagnosing the condition due to the rarity of the condition and the need to confirm the diagnosis by a diffusion-weighted enhanced MRI of the spine, such that “clot-busting” agents are time-excluded from use. Treatments are then focused on preventing additional vascular events, preventing deep vein thromboses in the paralyzed limbs, preventing bladder infections and fecal impactions, preventing decubitus ulcers and soft tissue infections, and preventing the additional morbidity associated with paralysis. This is not a comforting thought!

We are blessed with today’s medical technological advances that allow for so many life-saving procedures and procedures that preserve body function, such as spinal surgery, vascular stenting procedures and epidural injections. Unfortunately, some of these procedures have increased the incidence of spinal strokes due to the nature of the procedures themselves. The current epidemic of obesity and metabolic syndrome is also indicative of more cases of diabetes and atherosclerotic vascular disease which, according to the law of probability, will increase the incidence of this potentially devastating medical condition.

Clinical Trials Underway

Do you know someone who has had a spinal stroke? What was his or her age? What might have precipitated the “attack”? Some individuals have been in their early 20′s when the attack occurred. Needless to say, this is truly devastating! With all of our advanced technology, we should be doing a better job of preventing, diagnosing and treating this condition. The National Institutes of Health (NIH) does offer clinical trials for this condition; please refer to their website for further information. ( http://www.ninds.nih.gov/disorders/spinal_infarction/spinal_infarction.htm)

Image from homebusinessandfamilylife.com

Spinal Epidural Abscess: A basic primer

Friday, March 11th, 2011

Epidural abscess compressing the spinal cord -courtesy of aafp.org

In a previous blog, I introduced the topic of neck and back pain which can have a host of causes, most of which are mechanical.  This blog attempts to explore an infectious etiology of neck and back pain that can be potentially devastating, resulting in paralysis and even death.

The spine is a complicated structure involving bones, discs, ligaments, muscles, blood vessels and nerves.  It’s two main functions are to provide axial support for the upright stature of the human body and fluid movement of the body parts while also protecting or housing a critical component of the central nervous system, the spinal cord. Oversimplified, the spinal cord is a conglomeration of nerve fibers that act as the “information highway” between the peripheral nerves supplying sensory and motor function to the body parts and the brain. The spinal cord transmits chemical messages from the brain, telling the body what to do and how to function, even functions we are not conscious of doing (digestion, breathing, etc.), and it receives input from all of our senses and interprets the data.  Without the spinal cord or if the spinal cord is affected by an injury, there is disconnect; we lose feeling and movement as well as control of some of our normal unconscious body functions.  The location of the spinal cord damage dictates the level at which the disconnect occurs.  To help you understand the anatomy of the spine, here’s a short video describing the basic anatomy of the spine.

httpv://www.youtube.com/watch?v=Zeo0Im7h4Go

 

An epidural abscess is a collection of pus that occurs as the result of an infectious process involving any part of the  spinal cord from the base of the head to the tailbone; the abscess is located within the protective boney compartment housing the spinal cord, the spinal canal, and the thick outer covering of the spinal cord, the dura.  The dura is comprised of 3 layers, the outer one being very tough, the middle one being very vascular, and the inner one being very “tender.”

Signs and Symptoms:

In the early stages of the infection, a patient will often complain of neck or back pain very specific to the location of the infection, but the pain can be referred due to nerve root irritation.  As the infection grows, it spreads along the axial plane of the spinal canal, but the pressure and swelling of the purulent collection also tends to compress the spinal cord, resulting in numbness, tingling and functional loss below the level of the compression.  This progression can be indolent or rapid, depending on both the virulence of the pathogen and the person’s immune system.  Without emergent treatment, the pus collection can “choke off” the spinal cord and its blood supply, leading to permanent spinal cord injury and paralysis.

How does the infection get there?

Patients who have undergone spinal surgery are at an increased risk of these types of infections, especially during the immediate post-operative period.  Surgical wounds can become infected allowing bacteria to track deep into the tissues and the spine through the operative plane.  If hardware (spinal instrumentation) has been used, these man-made devices become reservoirs or fomites for attachment of the bacteria, and it is extremely difficult to eradicate bacterial pathogens from the hardware.

The bloodstream is another source of migration for bacterial pathogens from peripheral sites (infected gums, endocarditis, bladder infection, skin abscesses/boils) to the spine.  Individuals particularly at risk are those with depleted immune systems (e.g. diabetics, patients with auto-immune diseases on chronic steroids, HIV, etc.) and IV drug abusers (directly inject materials into veins).  Having spinal hardware from a previous spine surgery will increase the risk of seeding to that instrumented site should bacteria become blood-borne.

Direct inoculation can occur if  poor technique is utilized during epidural spinal injections or epidural anaesthesia.  There can also be contiguous spread from adjacent infected tissues (e.g. diskitis, osteomyelitis).

What are the most common pathogens?

Staph aureus, a common skin pathogen, is the most common cause.  It is known to cause skin abscesses/boils, wound infections, sinus infections, bladder infections and even pneumonia!  The relatively recent incidence of MRSA (a very resistent variety of Staph aureus) in the community has changed the way medicine treats common skin ailments; its effect on the incidence and treatment of epidural abscesses has yet to be determined.  If an epidural abscess is suspected, antibiotic coverage for MRSA is now automatically included in the initial treatment due to the bacterial virulence and resistance to treatment.

E. coli ( a common bowel pathogen and cause of bladder infection), fungi (like yeast), and even Mycobacterium tuberculosis are also causes of epidural abscess.  One can also contract mixed infections with aerobic and anaerobic bacteria, depending on the source of the infection (intra-abdominal abscess, perforated appendix).

How is an epidural abscess diagnosed?

The clinician must have a high index of suspicion and keep an open mind.  A thorough history often leads to clues such as recent fevers, a recent skin abscess or cellulitis, IV drug abuse, recent dental extraction or procedure, and neck or back pain without a specific inciting incident.  Physical examination of the patient often reveals point tenderness directly over the affected area of the spine, worse with percussion or tapping on the boney prominences, and often worse in the recumbent position.

Visualization of the spine is best accomplished with an MRI of the spine (above, below and including the tender area); it is non-invasive and very detailed regarding the soft tissues.  Patient weight can be a factor in accessing these machines; they often have a maximum weight limit of 300 lbs.  Many morbidly obese patients, who often have type II diabetes, are at risk for epidural abscesses; they often have to be transported to external facilities for “open MRI” studies.  Claustrophobia can also be a restricting factor, often requiring patient sedation or anaesthesia.  Excruciating pain while lying flat can also be prohibitive.  An alternative study to visualize the spinal cord is a CT-myelogram during which the epidural space is accessed with a spinal needle and dye is injected for visualization under computed tomography.  The CT-myelogram is a higher-risk study and can also be limited by a patient’s weight and sensitivity to contrast dye.  A lumbar puncture should NOT be done since it can lead to spinal cord herniation and permanent spinal injury.

What is the treatment for an epidural abscess?

There are two schools of thought regarding treatment.  One school favors emergent surgical debridement of the abscess along with intravenous antibiotics; this also allows for identification and sensitivity testing of the organism.  The other school suggests that intravenous antibiotics alone can be sufficient if no signs of spinal cord impingement are present; if symptoms progress to the development of neurologic symptoms, then surgery becomes more urgent.

What is the prognosis in epidural abscess?

Prognosis depends on the patient’s underlying medical condition and the degree of spinal cord involvement at the time of diagnosis/intervention.  Obviously, the earlier the intervention and treatment, the better the prognosis; hence, I favor surgical debridement as soon as possible.  Delays in diagnosis often lead to permanent and life-altering neurologic damage and functional loss or even death.  These delays and the permanent neurologic sequellae suffered often become the basis for medical malpractice litigation.

New Microchip Promises to Make Life Much Easier for Paraplegic Patients

Friday, February 11th, 2011

Hope for those with paraplegia?

Researchers in the U.K. have developed a revolutionary microchip muscle stimulator that will enable patients with paraplegia to exercise multiple muscles at the same time. According to the Engineering and Physical Sciences Research Council (EPSRC), the microchip developed by Professor Andreas Demosthenous from University College of London and his team is truly unique.

The microchip chip is small enough (approximately the size of a child’s fingernail) that it can be implanted directly into the spinal canal. Unlike previous models, the new implant incorporates the muscle stimulator and the electrodes into a singular unit.  The unit is properly sealed to protect against moisture, which could lead to corrosion of the electrodes.

The creation of the implant has been made possible by new laser processing technology, which enabled researchers to micro-pack all components into one unit. With this new laser technology, researchers were able to cut much tinier electrodes from platinum. The electrodes are then folded into a 3D shape that resembles pages in a book. Each electrode can be wrapped around a nerve root. The electrode is then welded to the microchip located in the spinal cavity.

Because the implant comes with multiple electrodes, which can be connected to multiple nerve roots, it is capable of controlling entire muscle groups. In patients with paraplegia, the devise can be used to stimulate or trigger multiple paralyzed muscles at the same time. Researchers also claim that the new device will also be used in patients with bladder or bowel incontinence.  Because the device has multiple electrodes, some electrodes can be connected to nerve roots that control bladder muscles or nerves that control bowel capacity.

Although all of this may sound a bit scifi, the implant will be available for pilot studies sometime this year. If you or someone you know is paraplegic, this research is worth following. It clearly promises to offer life-chaining benefits to patients with paraplegia. If you know of other research on similar devices, we’d love for you to share that information with our readers. We’ll try to keep an eye on the progress and implementation of this device from the UK and keep you posted if and when developments occur.

Neck & Back Pain: When is it something more serious?

Wednesday, December 22nd, 2010

Statistically, 4 out of every 5 adults under the age of 50 have experienced at least one episode of neck or back pain.  For most people, the symptoms resolve in a reasonable period of time with or without intervention.  For others, the symptoms become chronic, often leading to surgical procedures and even disability.  Sometimes, there is a specific identifiable incident that incited the pain while in other cases, no particular injury or overuse syndrome could be identified.  Neck and back pain are one of the most common complaints leading to medical evaluations in the emergency room, urgent care center or primary care physician’s office; they are also a significant cause of lost time from work, lost wages and productivity, and high expenditure from a healthcare perspective.

Neck and back pain are symptoms of an underlying problem.  The majority of the causes (~97%) are purely mechanical, that is related to the mechanics of movement of the neck or back, involving the bones, muscles, ligaments, discs and joint spaces.  They include such diagnoses as lumbar strain/sprain, degenerative disc disease, herniated discs, spinal stenosis, spondylolisthesis, osteoporotic compression fracture and traumatic fractures.  Some of these, obviously, are more serious with potential neurologic sequellae than others.  Any condition that results in compression of the spinal cord can cause permanent neurologic injury, including paralysis; these include fractures, stenosis and significant spondylolisthesis. Causes include acute traumatic injuries (car accidents, falls, direct blows), overuse syndromes, poor lifting techniques, poor posture, chronic degenerative arthritis leading to spinal stenosis and spondylolisthesis, and osteoporosis.

The remaining 3% of causes of neck and back pain are considered non-mechanical, but they can be further divided into non-mechanical spinal conditions (1%) and visceral (internal organ-related) conditions (2%).  Of the non-mechanical spinal conditions, neoplasias/malignancies comprise 0.7% while infections and inflammatory arthritides (inflammation of joints due to infectious, metabolic, or constitutional causes) comprise the remaining 0.3%.  Of the 2% visceral complications, etiologies are potentially due to vascular problems (aortic aneurysms, retroperitoneal hemorrhage, coronary syndromes, etc.), prostatitis, endometriosis, pelvic inflammatory disease, kidney stones/infections, pancreatitis, cholecystitis or ulcer perforation.  Thus, the sub-categories of non-mechanical neck and back pain have very small incidences in the global sense, but they are potentially more serious with more ominous consequences, including paralysis and death, making them diagnoses not to be missed or ignored.

So, how can one tell the difference between mechanical versus non-mechanical neck or back pain?

As a general rule, mechanical neck/back pain, since it is related to movement, is typically worse with movement or specific body positions and better with rest or lying supine without the burden of one’s weight causing an axial load on the vertebral column.  Non-mechanical neck/back pain is relatively constant and not related to body position or movement.  Pain in either case can be sharp or dull/aching, and each can have instances in which there is neurologic involvement causing pain to radiate along the nerves that exit the spinal column.  In the neck, nerve pain typically radiates to the arms causing pain, numbness and sometimes weakness.  In the upper to mid-back, nerve pain typically radiates to the anterior chest and abdomen.  In the lower back, nerve pain typically radiates into the pelvis, genital area, and especially the legs.  Radicular pain can be either one-sided or bilateral, the latter of which is more ominous and indicative of spinal cord compression as opposed to a single peripheral nerve root.

What are the “red flags” that raise concern for more serious problems?

There are specific risk factors that, when present, raise concerns for more systemic disease processes.  A history of cancer, for instance, increases the likelihood of the pain being related to a metastatic lesion or tumor.  Presence of a fever increases the likelihood of the pain being related to an infectious etiology.  Unexplained weight loss increases the likelihood of the pain being related to either a primary malignancy or metastatic cancer.  A history of intravenous drug use or even diabetes increases the risk for an acute or chronic infectious cause.  Blood in the urine can indicate a malignancy or other kidney-related problem.  Swollen glands can be indicative of a malignancy or infectious problem.  Anemia can be indicative of an underlying malignancy or vascular problem.  Rashes are often associated with rheumatologic or auto-immune problems that often involve the joints.  Chronic steroid use or other immunosuppression can increase the risk of infectious causes or osteoporosis with compression fracture.  Obviously, a history of trauma increases the risk of fracture, disc rupture/herniation and ligamentous injury leading to spinal instability, but it can also be a cause of intra-abdominal injuries or retroperitoneal injuries that present as back pain.  Any time there are neurologic deficits (numbness, tingling, weakness, muscle atrophy, etc.) beyond sciatica, the risk of nerve compression or spinal cord compression becomes higher.  Abdominal pain associated with back pain can be related to an intra-abdominal process (infection, abscess, aneurysm, ulcer perforation, etc.).  Neck pain that is associated with headache, fever and neck rigidity is often indicative of menigitis.

Overall, there are a plethora of potentially serious causes of neck and back pain.  One can see that the diagnosis of more serious conditions can be a little more complicated, especially since they are much rarer than the  common, everyday, garden-variety mechanical back pain without complications.  There are, however, a variety of clues that can lead one to an accurate and relatively rapid diagnosis.  The intention of this blog has been to introduce the topic and the dilemma faced by a provider when diagnosing these conditions.  Since the topic is broad and more complicated, a series of blogs dedicated to some of the more devastating etiologies of neck and back pain will follow.  The key to diagnosing any condition is an accurate and in-depth history and physical examination with keen attention to specific clues that are typically present.