Seeing Systems, Finding Home

Category: Physiology

Taking the Stress out of Surgery – With Amazing Results

Surgery is stressful. Even before they start cutting into your body, something stressful is going on – a disease or other problem that led to a surgeon’s office. Except for the most minor health problems, most of us have limited understanding of what’s going on, what can be done about it and what the outlook is. “Not knowing is hard,” I frequently say, to acknowledge the stress that arises from lack of knowledge.

I’ve been accompanying my brother on this kind of journey, as he received a scary diagnosis and underwent a big operation (which went even better than we dared hope, I’m happy to say). His surgery took place at Medical Center of the Carolinas, where we learned about a set of protocols called ERAS – Enhanced Recovery After Surgery. As they walked us through its components, I realized that ERAS is all about stress management – both physiological and psychological stress (the two are inseparable, but we sometimes forget that).

Here are the startling results when a hospital implements ERAS. Stay time drop up to 30 percent, complications drop by up to an astonishing 50 percent and your chance of dying drops similarly. Wow. (I will never have surgery in a hospital that hasn’t adopted ERAS.) One study showed that for a big, open abdominal operation like my brother had, ERAS reduces the recovery time and complications to about the same as if they’d operated laparoscopically (through tiny incisions). As a result of shorter hospital stays and fewer complications, costs go down, often dramatically, which is good for everyone.

Like other kinds of stress management, ERAS starts with education. On our first visit with the surgeon and team, they took their time, gave lots of information and patiently asked for and answered all of our questions. None of the rushing in and out that seems to be so often the norm in medicine. Surprising, considering that his surgeon is so skilled that people come from all over the world for his care.

We were asked to take a “class” (only the two of us were in it), where a nurse quite patiently walked us through all of the possible procedures the surgeon might have to do. She stepped through each post-op day of recovery, detailing what he would be eating, when he’d get out of bed (almost immediately), goals for each day (walk this far, eat this kind of food) and so forth. Even though it was a ton of information, the result was that we had an good picture of all of the possibilities and what they would mean in terms of recovery and possible tubes and drains they might have to put into him. Knowledge reduces stress.

One of the surprises was that ERAS does away with the ban on eating or drinking just before surgery. Although he needed to skip breakfast, they gave him two bottles of high-carbohydrate drinks. One was for the night before surgery, the other was for a few hours before. If you know much about stress, you are aware that it messes with your body’s endocrine system – blood sugar and related hormones. ERAS addresses the physiological stress response by carb loading prior to surgery – much like marathon runners do – and careful blood sugar monitoring afterwards. All of the education also undoubtedly helps manage those levels, since psychological stress also raises your sugar, cortisol and other “stress hormone” levels, which ultimately slow down healing and eventually cause health issues.

ERAS also includes pain management protocols because pain provokes your mind and body’s stress response. When ERAS is used, patients need less pain medication. ERAS even addresses simple things like ensuring that patients are kept warm. There are other, more medical aspects to ERAS (such as preventing blood clots), which aren’t as directly related to minimizing stress response.

The hospital also makes available an app, SeamlessMD, which coaches patients through all of this. I was impressed when I saw that its very first suggestion is to rally your social support. In virtually every study, social support is the most important factor in bouncing back, mitigating stress and thriving under pressure

In short, ERAS encompasses information, nutrition, exercise, social support – these are always the ingredients for resilience and thriving under stress. The big takeaway for me is to reinforce that stress is always physical, mental and spiritual. They cannot be separated. If we want to be more resilient, to thrive under stress and bounce back fast when life tosses us challenges or threats, we need to address mind, body and spirit.

Yes, spirit, also. Although ERAS doesn’t directly address what we’d normally think of as spiritual concerns, it implies a set of values consistent with our spiritual needs. ERAS calls upon hospital staff, patients, their families and friends to be generous with their time, knowledge and support. Although that’s not explicit or part of the research I reviewed, I have no doubt it affects outcomes a great deal.

On Becoming a Wildland Firefighter at 60

Friends who know me as a software and intelligence product manager and executive have asked how I ended up doing wildland firefighting with Spring Valley Fire Department. Believe me, I’ve asked myself the same question. It tends to pop into my head in situations such as hauling a 45-lb. pack up a steep hill in 90 degree weather and the air filled with smoke. I joke that that’s when I question my life choices. (Okay, it’s not entirely a joke.) Here’s how it happened.

Public safety is not new to me. I took a break from college decades ago and worked a few years as a paramedic. When I returned to school, I volunteered with the Salvation Army’s Emergency Disaster Services, which included feeding and caring for firefighters in Pittsburgh and surrounding areas. One of my friends from that group was a volunteer firefighter who was killed in the line of duty. His funeral had a profound effect on me, particularly the words, “Greater love has no one than this, to lay down one’s life for one’s friends” (John 15:13).

Fourteen years ago I found myself at another line-of-duty-death funeral – for our niece’s husband, a U.S. Marine who was killed in action in Fallujah, Iraq. That helped me realize that I was still carrying a heavy “stress backpack” from things that happened long ago. I met Janet Childs, the director of the Bay Area Critical Incident Stress Management Team (CISM), who helped me begin to let go of some of that weight. I accepted her invitation to join the team, received training and began volunteering in crisis intervention.

One of our CISM team members, who became my mentor and spiritual director, was serving as a fire chaplain for a large agency. When he decided to step down, he asked if I would replace him. After a couple of weeks of debating, I said yes. During my chaplain training, I became friends with members of the CAL FIRE Employee Support Services team. I was part of a group of chaplains who responded to the Rocky Fire in Lake County in 2015. The enormous Valley Fire, also in Lake County, started a short time later and CAL FIRE hired me as a contractor for peer support.

After the Valley Fire, I decided I wanted more wildland fire training, for safety’s sake, so I joined the local CAL FIRE Volunteers in Prevention program. Our duties include operating a mobile command vehicle (I have a ham radio license, which is part of skills required), staffing the Copernicus Peak fire lookout tower (the highest point in the Bay Area, a wonderfully relaxing place) and various public relations events.

Meanwhile, satisfying jobs in product management seemed to become much more difficult to find. I’m most at home in smaller companies and turn-around situations. The problem with those is that the company will nearly always either outgrow me or fail. Either way, I was getting laid off every few years. At some point, I decided that I was done with the high-tech industry, at least as a product guy. I am looking at bringing stress management and resilience wisdom from public safety into the private sector. It’s needed.

Ten years ago, I first met Spring Valley Fire Department, which protects about 200,000 acres of wildland east of Milpitas and San Jose. I led a critical incident stress debriefing for firefighters involved in a difficult response to a traffic accident. The debriefing became horribly memorable – I had asked a Santa Clara County firefighter to assist me, but he decided he needed a “mental health day” instead. While we were doing the debriefing, while bicycling, he was struck and killed by racing motorcyclists.

I joined Spring Valley last spring after talking to a couple of the chiefs while I was recruiting for the CAL FIRE VIP program. Since CAL FIRE was hiring me periodically for peer support at big fires, I wanted more training and experience with wildland fire. I didn’t realize that although Spring Valley is primarily a volunteer fire department, our firefighters can work for pay covering CAL FIRE stations when extra help is needed. (This year, a whole lot of help has been needed compared to past years.) I jumped at the opportunity. Meanwhile, I’ve also qualified as a federal firefighter/EMT to be able to work as a fireline EMT for Wilderness Medics, but I’m still waiting for my first assignment.

Along the way, I published the Pocket Guide to Stress Management and Crisis Intervention, which is now used by hundreds of public safety agencies, became an instructor for CISM, CPR and related topics, and I’m working on a book titled “The Resilience Recipe.” I’m thinking the subtitle might be “Your Brain Will Do That,” because it is mostly about how our brains respond to stress and trauma, and what they need in order to bounce back (spoiler – we need physical, social and spiritual connections).

Those are the events that led me here. At the risk of boasting, I’ll say that it’s been difficult, physically and mentally. Wildland firefighting is extremely demanding – we have to be able to do hard work in extreme conditions. At 61, it was no easy task to get in shape to be any good at all (and I won’t pretend that I’m anything more than adequate). To qualify for federal incidents, I had to pass the “Arduous Work Capacity Test” – hike (no running) three miles in 45 minutes carrying a 45-lb. pack. Although it’s not that difficult for a young person in good condition, the first few times I tried it, I wondered if I would ever get there.

When I look back at the physical training I’ve maintained over the last two years – typically hiking 2-3 miles with a heavy pack at least every other day, weight training at the fitness center every other day – I’m somewhat amazed. Although I was a backpacker and rock climber in my 20s and biked to work for a while, regular exercise was never much more than the thought, “I should do that one of these days.”

To be honest, I was somewhat scared into this self-disciple. A couple of years ago, to my surprise, a routine physical showed that I was pre-diabetic. The exercise has really paid off – my blood sugar is nearly normal and my doctor says I’m the healthiest 61-year-old he has seen. That doesn’t mean I can keep up with the 20- and 30-year-olds I’m working with, but I hold my own. And I keep looking for ways to do better. For motivation, all I have to do is recall hiking up a steep hill with a heavy pack at a fire.

In my writing and teaching, I’m focusing on resilience – our ability to bounce back from adversity. I’ve learned that stress and trauma are enemies of resilience because the “alarm center” in our brains, triggered by stress, will drown out our sources of willpower and motivation unless we do things to quiet it.

Without everything I’ve learned and done about managing stress and unpacking the trauma backpack, I’d never have been able to stick to the discipline that has enabled me to beat back diabetes and become a wildland firefighter/EMT at nearly 62 years old.

What Hiking Does To The Brain Is Pretty Amazing

Michael W. Pirrone reports on Wimp.com about new studies of the effects of hiking on the brain.

Excerpt: “According to a study published last July in Proceedings of the National Academy of Sciences, a 90-minute walk through a natural environment had a huge positive impact on participants.”

The article reports that hiking in nature lowers brooding and obsessive worry, increases creativity, helps you focus, gives you energy and strong self-image.

Article: You Can Improve Your Default Response to Stress

The Harvard Business Review has published an article by Michelle Gielan (a positive psychology researcher married to Shawn Achor, author of The Happiness Advantage), describing how our response to stress matters more than what happened to cause it.

Our perception of an event – what psychologists call appraisal – makes a big difference in our emotional and physical reactions. If we see a threat, our stress response will be negative. If we see a challenge instead, stress is an ally helping us rise to the occasion. Gielan reports on the results of a study by Plasticity Labs that shows how we can change our response. There are three keys, she says.

  • Cool under pressure.
  • Open communications.
  • Active problem-solving.

People with poor stress management fall into two categories, Gielan suggests, which she calls “Venters” and “Five Alarmers.”  Venters are the people who are quite open about their stress, but they are not cool under pressure and not good problem-solvers. Five Alarmers also share their stress, but they are better able to take action. However, they make no distinction between small and large stresses. They are headed toward burnout, exhaustion and guilt.

Gielan calls people with a healthy, adaptive response to stress “Calm Responders” – they express their stress, but aren’t overwhelmed by it.

The good news is that we really can change how we respond.

Don’t take that bite! Dogs, diets and heart rate variability

Two new reports related to heart rate variability (HRV) reveal more about its significance as a measure of our physical and emotional health. Higher HRV is associated with better stress management. It is a way to peek into the state of a person’s nervous system, particularly the vagus nerve, the mind-body information superhighway. The more active your vagus is, the better you are at coping with stress. It is the neural path through which your “rest and digest” system signals your “fight or flight” system to calm down.

One new article reports that people with high HRV can more easily resist temptation when dieting. Greater self-control of that kind is also linked to better psychosocial and physical health.

HRV is similar in other mammals, so another researcher looked at the relationship between HRV and aggression in dogs, hoping that HRV might predict how aggressive a dog is likely to be. Just as humans with high are better at resisting that extra slice of cake, perhaps dogs with higher HRV would be better able to resist taking a different kind of bite.

The resulting article reports that indeed, less aggressive dogs had higher HRV.  “Dogs with bite histories had significantly lower HRV” and owners who reported that their dogs were aggressive also had lower HRV. The researcher’s work suggested that HRV could be an objective way to measure the effectiveness of dog training that is intended to reduce aggressiveness.

Yoga, one of these days!

I recently met Shannon McQuaide, director of Fireflex Yoga, which leads first responder on-duty yoga classes. Meeting her may finally get me to actually try yoga, even though I have believed for a long time that it would be good for me. In fact, I became absolutely convinced of its benefit when I read Bessel van der Kolk’s book, The Body Keeps the Score

Fireflex Yoga

Fireflex Yoga

He devotes an entire chapter, Learning to Inhabit your Body, to yoga and its benefits.

Van der Kolk describes how he heard about Heart Rate Variability (HRV, a big topic of Stress, Science, Spirit) as a measure of how well your brain and body are connected.  Activities that increase your HRV will help quiet the fight-or-flight instinct that is responsible for the negative health consequences of carrying too much stress too long. Remember that, as I wrote in You cannot starve the evil wolf, escaping or avoiding stress usually backfires. You have to “feed the good wolf” through attitudes and activities – anything that increases your HRV will accomplish that. Yoga is a powerful way to “feed the good wolf,” in part because of its emphasis on breathing techniques. HRV essentially measures how well synchronized your heart and breathing are.

Van der Kolk’s research showed that traumatized people, including marines at Camp Lejeune, indicate that yoga is effective for helping people with ordinary or highly traumatic stress heal and grow.

I will admit that I’m a lot like “Annie,” van der Kolk’s patient who said, “I don’t know all of the reasons that yoga terrifies me so much, but I do know that it will be an incredible source of healing for me and that is why I am working on myself to try it.

After the earthquake

After the earthquake

Yoga is about looking inward instead of outward and listening to my body, and a lot of my survival has been geared around never doing those things.” I’m not quite “terrified,” but whenever I think about trying something like yoga, part of me seems to resist, strongly.

 

In 1990, I passed up an opportunity to try yoga in post-earthquake Haiti. I was with a Jordan International Aid medical relief team, traveling in and around Port-au-Prince putting on clinics. It was an overwhelming task – every day, far more people were lined up for care than we could possibly see. Women and children were especially hard hit- poor sanitation always hits them harder.

JIA Yoga

JIA medical team doing yoga in Port-au-Prince, Haiti.

Most evenings when we returned to the house where we operated from, some of the medical team would lead a yoga session. Even our Haitian national policemen were joining in, but somehow I just couldn’t bring myself to try it. I can’t claim to know why we sometimes are so resistant to things that we know would be good for us. I do know that it is related to stress and trauma. Shannon has invited me to join one of her classes at a fire station. Somehow, that seems safer than going to a classroom of strangers whose life experiences are unlikely to resemble mine. It seems to be important to start journeys of healing with people who understand, at a level beyond words, where we are coming from.

How Well Connected are Your Brain and Body?

Adapted from my upcoming book, Stress, Science, Spirit: Connecting Out, Up and In to Thrive Under Pressure.

Ever heard of Heart Rate Variability (HRV)? It measures how well synchronized your breathing and heart rate are – but it is also increasingly recognized as an index for how well you are handling physical and emotional stress.

Every time you exhale, your heart slows down a bit. That’s why breathing techniques for relaxation always instruct you to exhale slowly. The more it slows down, the higher your HRV is likely to be and the better you are coping with stress, numerous studies have found. High HRV is good, in other words.

HRV gives a snapshot into the activation level of your vagus nerve, which is the communications superhighway between your brain and your body.

Research shows that people with high HRV – their hearts speed up and slow down more, synchronized to their breathing – are more resilient, physically and emotionally. Since the vagus nerve influences many of our body’s automatic systems, low HRV is associated with a wide variety of issues – emotional struggles, antisocial behavior, inflammatory and cardiovascular diseases, poor fitness and others. People with low HRV are much more likely to die after a heart attack (Robert E. Kleiger, J.Philip Miller, Thomas Bigger Jr., & Arthur J. Moss, 1987; Thayer, Yamamoto, & Brosschot, 2018).

Although our HRV is determined by genetics and your life experiences, you can change it. Early studies of HRV biofeedback has shown promise for helping to heal a variety of illnesses and injuries:

  • Major depression (Karavidas, et al., 2007),
  • Brain injuries (Lagos, Thompson, & Vaschillo, 2013),
  • Cardiac rehabilitation (Climov, et al., 2014),
  • Addictions – including food (Eddie, C. Kim, Deneke, & Bates, 2014; Meule, Freund, Skirde, Vögele, & Kübler, 2012; Penzlin, et al., 2015),
  • PTSD (Reyes, 2014),
  • High blood pressure (Guiping Lin, 2012),
  • Hostility (Lin, et al., 2015),
  • Chronic pain (Melanie E. Berry, et al., 2014).

HRV biofeedback is also showing promise in life-enhancing uses, including:

  • Improving sports performance by reducing anxiety (Paul & Garg, 2016),
  • Preparing military for combat deployment (Lewis, et al., 2015),
  • Grandmothers raising grandchildren (Zauszniewski, Au, & Musil, 2013),
  • Accelerated learning (Harmelink, 2016).

What do all of these have in common? They are interconnected via your “rest and digest” system (the parasympathetic nervous system). Central to it, the vagus (“wandering”) nerve connects the brain, gut (intestines, stomach), heart, liver, pancreas, gallbladder, kidney, ureter, spleen, lungs, fertility organs (in women), voice, ears and tongue.

High HRV indicates that your brain has greater control over the fight-or-flight system, so you are better able – consciously and unconsciously – to turn it down when danger passes.

Imagine that your body is a fire engine speeding down the road “Code 3” – siren screaming and lights flashing. The fire is out and the emergency is over, but you’re not the driver – you are in a back seat repeating to the driver over the intercom, “Slow down, slow down.” The driver will only ease off the gas and hit the brakes when she can hear your instructions.

“You” are your brain, the driver is your flight-or-flight system, the intercom is your vagus nerve and the speed at which your “slow down” messages are actually reaching the driver is your HRV.

If you are saying “slow down” 20 times a minute, but the driver only hears it five times, that’s low HRV. Your brain isn’t well connected to your body. As a result, neither your conscious mind nor your automatic nervous systems have much control, so the fire truck continues to barrel down the road as if there is still a crisis. In contrast, if most of your messages get through, the driver eases off the gas and the wear and tear on your body is reduced.

The usual goal of “stress management” would be to reduce the stressors, which would be like parking the fire engine – stop responding. Avoid “fires.” But how do you do that if it’s your job?

Instead, you can restore balance through activities and attitudes that help make the “intercom” between your brain and body work better, which will show up as increased HRV. Good news: the vagus nerve is two-way communications, so if you improve your HRV, you will help the back-seat driver’s messages get through.

You can improve your HRV directly through biofeedback, breathing exercises and other relaxation techniques. Even more significantly, your HRV will also reflect the strength of your social support, which is crucial to resistance and resilience to stress. A host of other activities will activate your vagus nerve, which has cascading effects that tell the fire engine (the fight-or-flight instinct) to slow down. Researchers have observed that this happens with yoga, meditation, gratitude, prayer, generosity, trusting and trustworthiness, compassion (for yourself and others), hugging a friend and even having a good cry.  These are the “connecting out (to people), in (to yourself and creation, being grounded) and up (values, ethics, spirituality) that Stress, Spirit, Science will describe in stories and practical advice.

Bibliography

Berry, M., Chapple, I. T., Ginsberg, D., Gleichauf, J., & Nagpal, M. (2014). Non-pharmacological Intervention for Chronic Pain in Veterans: A Pilot Study of Heart Rate Variability Biofeedback. Global Advances in Health and Medicine, 3(2), 28–33. http://doi.org/10.7453/gahmj.2013.075

Climov, D., Lysy, C., Berteau, S., Dutrannois, J., Dereppe, H., Brohet, C., & Melin, J. (2014). Biofeedback on heart rate variability in cardiac rehabilitation: practical feasibility and psycho-physiological effects. Acta Cardiologica, 69(3), 299–307. http://europepmc.org/abstract/med/25029875

Eddie, D., Kim, C., Lehrer, P., Deneke, E., & Bates, M. E. (2014). A Pilot Study of Brief Heart Rate Variability Biofeedback to Reduce Craving in Young Adult Men Receiving Inpatient Treatment for Substance Use Disorders. Applied Psychophysiology and Biofeedback, 39(3–4), 181–192. http://doi.org/10.1007/s10484-014-9251-z

Harmelink, A. (2016). Pilot Study of the Effects of Heart Rate Variability Biofeedback on Perceived Stress, Perceived Coping Ability, and Resilience in Accelerated Baccalaureate Nursing Students. Theses and Dissertations. Retrieved from http://openprairie.sdstate.edu/etd/1015

Karavidas, M. K., Lehrer, P. M., Vaschillo, E., Vaschillo, B., Marin, H., Buyske, S., … Hassett, A. (2007). Preliminary Results of an Open Label Study of Heart Rate Variability Biofeedback for the Treatment of Major Depression. Applied Psychophysiology and Biofeedback, 32(1), 19–30. http://doi.org/10.1007/s10484-006-9029-z

Lagos, L., Thompson, J., & Vaschillo, E. (2013). A Preliminary Study: Heart Rate Variability Biofeedback for Treatment of Postconcussion Syndrome. Biofeedback, 41(3), 136–143. http://doi.org/10.5298/1081-5937-41.3.02

Lewis, G. F., Hourani, L., Tueller, S., Kizakevich, P., Bryant, S., Weimer, B., & Strange, L. (2015). Relaxation training assisted by heart rate variability biofeedback: Implication for a military predeployment stress inoculation protocol. Psychophysiology, 52(9), 1167–1174. http://doi.org/10.1111/psyp.12455

Lin, G., Xiang, Q., Fu, X., Wang, S., Wang, S., Chen, S., … Wang, T. (2012). Heart Rate Variability Biofeedback Decreases Blood Pressure in Prehypertensive Subjects by Improving Autonomic Function and Baroreflex. The Journal of Alternative and Complementary Medicine, 18(2), 143–152. http://doi.org/10.1089/acm.2010.0607

Lin, I.-M., Fan, S.-Y., Lu, H.-C., Lin, T.-H., Chu, C.-S., Kuo, H.-F., … Lu, Y.-H. (2015). Randomized controlled trial of heart rate variability biofeedback in cardiac autonomic and hostility among patients with coronary artery disease. Behaviour Research and Therapy, 70, 38–46. http://doi.org/10.1016/j.brat.2015.05.001

Meule, A., Freund, R., Skirde, A. K., Vögele, C., & Kübler, A. (2012). Heart Rate Variability Biofeedback Reduces Food Cravings in High Food Cravers. Applied Psychophysiology and Biofeedback, 37(4), 241–251. http://doi.org/10.1007/s10484-012-9197-y

Paul, M., & Garg, K. (2012). The Effect of Heart Rate Variability Biofeedback on Performance Psychology of Basketball Players. Applied Psychophysiology and Biofeedback, 37(2), 131–144. http://doi.org/10.1007/s10484-012-9185-2

Penzlin, A. I., Siepmann, T., Illigens, B. M.-W., Weidner, K., & Siepmann, M. (2015). Heart rate variability biofeedback in patients with alcohol dependence: a randomized controlled study. Neuropsychiatric Disease and Treatment, 11, 2619–2627. http://doi.org/10.2147/NDT.S84798

Reyes, F. J. (2014). Implementing Heart Rate Variability Biofeedback Groups for Veterans with Posttraumatic Stress Disorder. Biofeedback, 42(4), 137–142. http://doi.org/10.5298/1081-5937-42.4.02

Zauszniewski, J. A., Au, T.-Y., & Musil, C. M. (2013). Heart Rate Variability Biofeedback in Grandmothers Raising Grandchildren: Effects on Stress, Emotions, and Cognitions. Biofeedback, 41(3), 144–149. http://doi.org/10.5298/1081-5937-41.3.06

How to protect sleep-deprived EMS personnel

EMS1 published an article yesterday, “How to protect sleep-deprived EMS personnel,” in which the main point is the danger of driving home while sleep deprived.

Sleep is also essential for processing traumatic incidents. REM (rapid eye movement) sleep is when our brains put them to rest. Anything that interferes – lack of sleep, alcohol, some medications, sleep apnea – makes it harder to process the day’s emotions. Poor sleep sets you up for post-traumatic stress disorder.

Going to Church Could Help You Live Longer, Study Says

CNN reports a new study that suggests that regular church attendance may also help increase lifespan. Assuming that church attendees tend to have stronger social support networks, which is generally recognized, this study is consistent with others that show a correlation between health (emotional and physical) and our “connectedness” with other people, as well as spiritual practices that connect us to creation and the divine.

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