Slashdot Mirror


Robots Approved For Cardiac Surgery

An anonymous reader writes "CNN has an article up on a new robotic heart-surgery system. By making 4 relatively small incisions into the patients chest the da Vinci Surgical System, guided by real surgeons, uses its pencil sized "tools" to conduct several different heart procedures including closed-chest coronary bypass surgery. By operating on a patient with their chest closed, patient recovery times have reduced from weeks to just days. Despite the robotic surgery taking longer than traditional operations, this reduced recovery times makes the robotic surgery cost less overall than traditional open heart surgery. Fortunately, if anything goes wrong with the robot, the human surgeons can jump right in and pick up where the robot has stopped. Already the robot (in place in over 130 hospitals world wide) has been FDA approved for Mitral Valve repair surgery. More insightful info on the da Vinci System here." It's not the first such system, either.

37 of 197 comments (clear)

  1. Is this a robot? by Anonymous Coward · · Score: 5, Insightful

    Or is this a human surgeon performing surgery with a very sophisticated set of tools? I know the word 'robot' makes for good headlines. Does an RC Car qualify as a robot? It does in "Robot Wars".

    1. Re:Is this a robot? by Ichijo · · Score: 3, Insightful

      Is this a robot? Or is this a human surgeon performing surgery with a very sophisticated set of tools?

      From the topic description:
      ...if anything goes wrong with the robot, the human surgeons can jump right in and pick up where the robot has stopped...
      From the CNN article:
      ...totally robotic operation...

      These imply the human surgeons can just sit and watch while the robot goes about its work, but Da Vinci's web site says otherwise. I don't think there's any artificial intelligence involved, but I see where the confusion lies.

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
  2. Scary... by Ligur · · Score: 5, Funny

    I can imagine counting slowly backwards from 10 and just before I doze off hearing: "I'm sorry dave, I'm afraid I cannot do that."

    --
    Smoke me a kipper, I'll be back for breakfast.
  3. robots vrs doctors by Shymon · · Score: 4, Insightful

    i'll bet many people think that the bugs that are in this thing (and there are always bugs on anything this complicated) make for a somewhat scary prospecte to go under the knife held by said machine. but think about it, how many times have you screwed up a math problem? now how many times has you TI83? i'll take a robot's steady hand to a live doctor any day.

    1. Re:robots vrs doctors by entrager · · Score: 3, Interesting

      but think about it, how many times have you screwed up a math problem? now how many times has you TI83? i'll take a robot's steady hand to a live doctor any day.

      I would argue that a robot capable of performing heart surgery is slightly more complicated than a TI83. Let's all remember that the number of errors in a system typically goes up with the complexity.

  4. I hate to be the guy who points this out, but by Featureless · · Score: 5, Informative

    Isn't this the same robot that was just involved in a patient death?

    I mention it because I caught the news about a robot being involved in a surgery accident on the newswire a couple days ago, and then yesterday I caught a puff piece on the DaVinci system on the TV news (ABC, I think?) - no mention of that recent fatality.

    No mention of the fatality in the CNN article, either. And for that matter, no mention of it here. I find this very strange. Slashdot editors missing it, I can understand. But wouldn't even the most brain-dead journalist make this connection? Let alone the big-leaguers?

    1. Re:I hate to be the guy who points this out, but by root_dev_X · · Score: 5, Interesting
      yes and no.

      it depends largely on where the aorta is cut. If you're talking about the major section of the aorta, near the aortic and mitric valves, then yes - the internal bleeding would be catastrophic, and the patient would die in a matter of minutes.

      it sounds like this article is describing a cut in the aorta farther away from the heart than you're thinking. that would cause significantly less bleeding, and since imaging of such a location would be a secondary consideration, a complication in that area could go unnoticed for some time.

      at any rate, a surgical system like the da Vinci could one day save many, many lives. I've got Marfan's Syndrome, and suffer from leaky aortic and mitric valves, as well as an aorta within 5mm of dissection. Closed-chest robotic surgery of this kind, which causes almost no damage to the heart and its effected connective tissues, would almost eliminate the need for me to undergo open-heart surgery one day.

      Systems like this should be adopted cautiously, but i think that their introduction would lead to a dramatic drop in complications post-op, which is one of the the leading causes of death among open-heart surgery patients. Even those that survive the surgery are often left with drastically diminished cardiovascular capacity, due to the degree of trauma inflicted on the heart during the surgery. This was my father's case - he underwent open heart surgery twice to replace his aorta. The repeated surgery left his heart on a hair's trigger - the result of complications non-invasive surgery could have prevented.

      pardon the soapbox, but this is a fairly close-hitting topic for me.

      -WarbleVX

      --
      ===== Warble://VX
    2. Re:I hate to be the guy who points this out, but by Zathrus · · Score: 5, Interesting

      Apparantly so... but how many patients die due to surgeon error while on the table? Or afterwards due to complications from surgery?

      Complications include things like having your chest split open again a few hours later. Yes, it happens. I've had to pick up 12 units of blood for a patient that had this happen (and at one of the best cardiac hospitals in the US too, not some random place). Those 12 units lasted long enough to get him from ICU to surgery. No idea if he survived or not - I was just a gopher.

      Will the robot be flawless? Seriously doubt it. But you don't reject a new tool just because it has flaws -- as long as it has fewer flaws (or, hell, even more predictable flaws) than the tool or method that preceded it.

      I'm very sorry for the person that died, as well as their families, and I hope that whatever situation caused that will be analyzed and fixed so that it doesn't occur again.

    3. Re:I hate to be the guy who points this out, but by Anonymous Coward · · Score: 3, Informative

      Pick up a copy of Gray's anatomy some time. The aorta is a major blood carrying vessel that runs pretty much the entire length of the body trunk. Actually, you can read the relevant exceprt from Gray's here. They probably damaged the abdominal section of the aorta? (IANAS) I think to a certain extent this highlights the danger of being over-reliant on one set of sensors or inputs, i.e. just what you get through the screen controlling the 'bot.

    4. Re:I hate to be the guy who points this out, but by Zathrus · · Score: 4, Insightful

      Until this technology is perfected and absolutely error-free/failsafe/100% accurate, I'll opt for the human to do the surgery.

      Yes, because human surgeons are perfect!

      That's why malpractice insurance is so damn cheap.

    5. Re:I hate to be the guy who points this out, but by Idarubicin · · Score: 5, Insightful
      The article you cite states unequivocally that preliminary investigations found no mechanical fault in the device. If the reports indicated that the robot's arms spontaneously began making stabbing motions without input from the surgeon, then it would be important for the news outlets to report this incident. Surgeons can make mistakes, whether they are working with their own hands or controlling robotic ones.

      I, for one, would much prefer to be operated on using this new system--the electronics damp out tremors, and I don't have to worry about a surgeon sneezing and lacerating my intestine. The trauma of major incisions is eliminated, saving me from weeks of hospital food, pain meds, and severe scarring.

      Surgeons will take time to become accustomed to this new system. Without a gaping incision, it is harder to see what's going on. There are new failure modes possible. A nick in the aorta is immediately obvious in conventional surgery, not so much so under these conditions. There may also be a 'novelty' penalty. This is a new technique, so there aren't really any experts in the field who have performed thousands of procedures with these devices. There is a learning curve.

      Nevertheless, medical decisions are usually made on the basis of a risk calculation. If there are fewer overall complications and deaths, then I'll accept 10 robot-related deaths per year in exchange for the prevention of 100 lethal post-op infections due to poor wound healing.

      --
      ~Idarubicin
  5. Who to Sue? by drblunt · · Score: 3, Interesting

    But who will the overly litigious American peoples sue if something goes wrong? The doctor, who is, for all intents and purposes, not there? At any rate, while I am clearly attempting to facetious (sp?), this is really a very big step forward. I just don't want it working on me until they've worked out the bugs.
    Doc

    --
    We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality.
    1. Re:Who to Sue? by binaryDigit · · Score: 5, Informative

      But the surgeons are right there in the room. The answer is simple. The patient will sue:

      - the surgeons involved
      - the hospital
      - the manufacturer of the device
      - possibly the other staff depending no the nature of the, uh, "problem"

      Once in court, the insurance companies for these individuals will duke it out and the "blame" for the "accident" will be divvied out between all the members. So the docters will be held x%, hospital y%, manufacturer z% where x+y+z==100.

      This is standard lawsuit fare, no different really. It's all in the percentages and who pays what amount. In the end it's always trivial to find all parties involved at least partially responsible.

  6. Cardiac Surgery by Detritus · · Score: 4, Insightful

    I had a teacher who enjoyed explaining, in gory detail, how they sawed his sternum in two, pried open his rib cage,, fixed his heart problem, and then stapled his sternum back together. This new technique sounds much less painful.

    --
    Mea navis aericumbens anguillis abundat
  7. Other problems? by insanecarbonbasedlif · · Score: 5, Insightful

    A lot of times when doctors go to operate on someone with heart problems, they discover other defects or abnormalities with the heart and surrounding vessels. Will a robotic system that is minimally invasive create "tunnel vision" so that doctors are unable to see other potential problems?

    --
    Just because I doubt myself does not mean I find your position compelling.
  8. incisions? by sczimme · · Score: 5, Funny

    By making 4 relatively small incisions into the patients chest
    ...
    Fortunately, if anything goes wrong with the robot, the human surgeons can jump right in

    I think they're going to need bigger incisions...

    --
    I want to drag this out as long as possible. Bring me my protractor.
  9. manufacturer's url by tomhudson · · Score: 4, Informative

    The manufacturer is Intuitive Surgical

  10. scary but probably good by chunkwhite86 · · Score: 4, Insightful

    This while sounding scary at first, is probably a step in the right direction for surgical medicine.

    I however, would not like to be one of the beta testers for this thing!

    --
    I'd rather be a conservative nutjob than a liberal with no nuts and no job.
  11. I hope the control computer is not networked by jki · · Score: 3, Insightful

    ...or else we will have a new generation of assassins who hack in the hospital network and just accidentally puncture your heart. I mean really, this is a bit scary - especially because based on my experience many doctors do not exactly know what is happening on their computer and how to keep it secure - and to make sure no-one plugs any device on their network or any software on their computer during the visit....and even if the computer is not networked, do you really think it would be impossible for someone to slip in a device providing wireless access to that machine. Has anyone noticed any articles on these issues?

  12. Re:don't trust it... by Anonymous Coward · · Score: 5, Informative

    I have seen the machine in action and had the opportunity to "play" around with it myself. Hackensack Medical Center in NJ has two of these machines (called Mona and Lisa respectively). IT IS NOT AUTOMATED. The term robot is such an abused phrase, it is just a very very advanced instrument, the surgeon has absolute control every second. The robotic action of the machine just allows the surgeon to perfrom actions that are more percise than humanly possible. It is a very safe system so far; and it greatly reduces the post-op trauma of typical cardiac bypass (since the incision is very small and does not need the cutting of the sternum). Currently hospitals like Hackensack are learning to do more and more operations with the machine like mitral valve replacement. /nigel

  13. Re:Hmm by killthiskid · · Score: 5, Insightful

    What do you think is scarier, having your chest peeled open like a book, or the alternative. As someone whose father just recently went through open heart surgery, I can say the process would be nerve racking either way.

    And while the surgery is bad, the recovery is probably worse. Painful, long, and frustrating. Anything that can shorten the recovery process is a wonderful thing, IMHO.

  14. I'd prefer... by fireboy1919 · · Score: 5, Insightful

    "...it better not have any software."

    When it comes to something that needs to be that robust, I want a control system consisting of highly reliable real-time (not pseudo-realtime like embedded distros) microcontrollers.

    I want parts designed to last 20 years, not something that could fail in one due to a motherboard failure, or at any time due to a hard drive failure. Software just doesn't cut it here.

    --
    Mod me down and I will become more powerful than you can possibly imagine!
  15. Hmm... by c0dedude · · Score: 3, Funny

    Robotic surgery really gives a new meaning to the blue screen of death eh? Grab the paddles, we gotta restart!

    --
    Since when has this country used intellectual elite as a pejorative term?
  16. Robotic Surgery Link - CSTAR by tartanboy · · Score: 5, Interesting

    Here is a link to CSTAR, which is a national centre in Canada for robotic surgery. The page talks about a few of the systems mentionned in the article.

    They seem to have quite a few robotic surgery firsts. Pretty neat stuff.

  17. [ADV] Robot Insurance, because you never know! by Xerithane · · Score: 3, Interesting

    Robot Insurance? Yep, it's not a laughing matter for some people.

    For when the metal ones come for you...

    --
    Dacels Jewelers can't be trusted.
  18. Hey, hold on by Featureless · · Score: 3, Insightful

    We don't know anything about the trial - so let's not guess about rates. I'm just saying it's very bad when such an accident (occurring just a few weeks ago) is not worthy of mention in a long news article or TV program covering the device. Especially when it clearly appears to be the result of procedural error - this isn't someone's hand slipping. It should (rightly) draw new attention to the doctor, the device, and the underlying techniques, so it's very spooky when the news covers the device without ever mentioning it's just been involved in a patient death under questionable circumstances.

  19. Re:Hmm (The Dr. McCoy Problem) by zanerock · · Score: 3, Interesting

    It sounds great to me. Less recovery time, less trauma, more precision, etc. It probably won't be long till it's faster. Similar systems will probably start to provide all sorts of services. Eventually, you might begin to carry such things on capital ships and cruise liners, have "emergency stations" at rest stops that can repair heart attack damage instantly, etc.

    Just like Star Trek. Which brings me to my concern. I can't really envision Dr. McCoy jumping in there. Once such systems are commonplace, will the doctor eventually become a mere medical technician? In 50 years, will the guy watching the surgery know what to do when MS Surgery blue screens?

    Not that the percentages might be better, humans make mistakes too, but I'd hate to see the profession suffer. If nothing else, it will decrease the demand and even the perceived need for highly skilled surgeons (well into the future, of course). This could cause a shortage in which it really is just a sys-admin watching Dr. Roboto tinker with your innards, ignorant of what the hell is going on.

  20. I would like to ask a favor by Loco3KGT · · Score: 4, Funny

    Of all manufacturers of these devices : Please don't try to divide by zero. I like my life.

    --
    Blessed be he who reads this post, Cursed be he who tells my boss.
  21. Robotic surgery may cause brain damage by peripatetic_bum · · Score: 3, Interesting

    There was a recent article in the JAMA which reported that there was a decrease in cognitive ability in people how had major cardiac surgery.
    They thought it might be due to the time spent on the heart-bypass machine or that time spent with the body cooled might be affect the brain in some unknown way yet. Thuse when reading this article and it stating that the surgery takes much longer but the hospital stays are shorter might in fact be hiding the fact that the rate of cognitive damage might go up and not be detected until months afterwards.

    --

    Sigs are dangerous coy things

  22. Lower risk of Staf Infections? by wideBlueSkies · · Score: 4, Insightful

    My wife lost her father a couple of years ago.

    He had a triple bypass, and was up and around his room the next day. We were like "way to go dad!".

    The day after that he had a fever. Within a week he was in a coma, and 2 1/2 months after the operation he was gone. It was horrible. And all because he caught a Staf infection.

    It could be that maybe a surgical implement wasn't as clean as it sould be... more than likely, he just caught it from bacteria floating around in the air. He was on the table for more than a few hours.

    I hope to god that advances like this can keep someone else from going through the hell that he (and we) went through. The way I see it, the less invasive the procedue it, the less likely it is that an infection will occur.

    --
    Huh?
  23. Re:I was waiting for someone to make this mistake by American+AC+in+Paris · · Score: 5, Interesting
    Point out where the article draws that conclusion.

    Well, to quote the article,

    The hospital and Intuitive Surgical Inc., which manufactures the da Vinci Surgical Systems robot, evaluated the machine and found no mechanical problems. [Hospital president Isaac] Mallah said the robot did not cause the problem. It does not act without prompting and is always controlled by a trained surgeon.

    There really isn't room for ambiguity in that statement; the hospital president says flat out that the robot was not the cause of the problem.

    As I just said elsewhere, it's unclear how the accident happened, obviously, but with something like this I consider both the underlying technique as well as the user interface potential risk factors. Of course, it could just have been human error, but that's the whole point of risk factor analysis; the line between "human error" and a false expectation or a design problem does not actually exist.

    Yes, it is unclear how this happened, but I stand by my statement that the machine should not receive undue media attention at this time, especially in light of the fact that 1) the investigation is young, ongoing, and under the auspices of regulatory agencies; and 2) the machine was found to have no mechanical problems.

    A media scare could easily set this medical development back several years. Doing so prematurely on and little evidence would be a terrible disservice to those who could benefit from this type of surgery.

    --

    Obliteracy: Words with explosions

  24. Re:No thanks. This kills by Skyshadow · · Score: 3, Insightful
    That case clearly shows the flaws with this technology... It made the surgeon lazy. He expected the robot to just 'do what it should' with no problems. He didn't check for internal bleeding. The patient died because of it.

    You're joking, right?

    Look, this thing isn't a "robot" in any real sense -- it's not taking away control from the doctor, it's a sophisticated tool which has the potential to do as much for surgery in the next few decades as the laproscope did in the last few.

    If the doctors start skipping steps, it's their fault, not the tool's. Like certain other people in this thread, you're applying Windows logic ("It should have done this for me and covered my ass!") in a UNIX situation -- the tool is meant to be used by someone who understands it and knows what they're doing.

    If some newbie rm -rf's his filesystem, it's his fault, not the OS's.

    --
    Every year during my review, I just pray the words "slashdot.org" aren't mentioned.
  25. Doc by _ph1ux_ · · Score: 3, Funny

    I am still waiting for my own holographic doctor.

  26. On the next season of Junkyard Wars .... by nicodaemos · · Score: 5, Funny

    Today teams, you're going to have to build an artery clearing, laser cutting, heart pumping cardiac surgery robot!!!

    Each team will do three surgeries tomorrow in a head to head competition. The team who spills the least amount of blood and has the most living patients at the end, wins!!!

    Okay teams, you have 10 hours to complete your robots. Get ready, set ..... go !!!!

  27. As just a matter of information... by carlcmc · · Score: 5, Informative
    I'm on staff in the Urology division at Mayo Clinic in Rochester, Mn. (www.mayo.edu www.mayoclinic.org and www.mayoclinic.com). We have one these da Vinci's and we use it for partial and total nephrectomies (removal of the kidney) and other various urological related surgeries.

    In no way is this a "robot" it is a motion transference device. It reproduces your motions with multipliers applied to them (either greater than or less than 1 multiplier) for increasing or decrease the distance traveled of the instrument. It is progress when compared to plain laparoscopy because you are no longer as limited to the angles and degree of freedom.

  28. Re:I was waiting for someone to make this mistake by Featureless · · Score: 5, Informative

    We have a few points to clear up. Foremost, the article clearly does not draw the conclusion you claim, and your own quote underscores the point quite nicely. It relates only a statement by the hospital administrator. These are two entirely different things. This is only a claim by one of the parties, and moreover, an administrator with an incentive to avoid lawsuits/negative publicity. The only claim you can make about what the article "says" is a negative one. It does not say what caused the accident at all; it only points out, "something went terribly wrong."

    I'm not even sure how you can believe your own words. By your "no room for ambiguity" standards, this should be an article titled "surgeon error results in patient death." It should say not "something went terribly wrong," but "the surgeon made a terrible mistake."

    Fortunately, you immediately contradict yourself by admitting that it is unclear what caused the problem - the correct conclusion to draw from the article. Perhaps, if you were considering surgery with this tool, you would suddenly take a much keener interest in these fine points. By the way, taking into account the nature of the injuries, do you think this would have happened without the robot?

    Your reasons for silence by journalists are particularly specious. Finding "no mechanical problems" should not be confused with "finding no problems" - again, two entirely different things. Even as a layman, I would not assume the problem was mechanical. Nor would I assume that any part of the machine "acted without prompting." Neither are very reassuring assertions. Rather, considering the circumstances (aorta cut going unnoticed for 90 minutes), one expects an interface problem, or a problem with the underlying technique. Remember, you're working in unconventional ways in tight spaces. The purpose of these trials is to evaluate the risks. Cases like this can expose important ones.

    Perhaps if people left choices about medical treatments to their doctors, and there were no regular ads for drugs, medical facilities, and services targeted directly at consumers, you could make the argument that the mainstream press could be forgiven the omission. Unfortunately, this is not the case.

    What do you consider "undue media attention?" Should fatalities be kept secret? Or just "not reported" in most venues? Would you like to discuss the difference? And remember, we're not talking about a quick spot; this is during extensive coverage of the device and the technique... not even then?

    But where you've made the largest leap of all is the false dilemma between silence and "a media scare [that] could easily set this medical development back several years." I'm frankly shocked; proper handling, full disclosure, and maximum awareness of cases like this push medical development forward, not backwards. The only thing they might set backwards are the bottom line of the company selling the drug/device/procedure. The incentive on the part of that company to minimize such evidence, to "make the product appear to be perfect" is very powerful, often with hundreds of millions and even billions at stake...

    I'm surprised to find myself getting this basic, but the foundation of both capitalism and democracy is one of full disclosure, where voters and buyers are trusted to make their own decisions given all the facts. It does not admit "fear of scaring people off" as a reason not to discuss fatalities resulting from a new product or service.

  29. Re:unit? by Julian352 · · Score: 3, Informative

    I don't know much about the medical proffesion but I do remember units from the time I donated blood. Pretty much 1 unit is the amount one person can donate at a single time.
    Looking at Google:
    unit (of blood)
    a unit of volume for human blood and various blood components or products. A unit of whole blood is 450 milliliters, which is about 0.9510 U.S. pint. For components of blood, one unit is the amount of that substance that would normally be found in one unit of whole blood. The adult human body contains roughly 12 units of whole blood.