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Bjorn, Pret pbjorn at emh.orgTue Jun 12 22:44:44 BST 2012
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OH, NOT SO!!! I mean, no offense, but most folks would insist that even I am 'from away.' I had a brother who was BORN here, but real natives wouldn't count even THAT. "If a cat has kittens in the oven, you still can't call 'em muffins." Sent from my iPhone. On Jun 12, 2012, at 4:42 PM, "Forrest Robleto" <farcpr at gmail.com> wrote: > I lived in Maine for ten years. They explained when we moved in that > Maine has no residency requirements. So on day one, you are a Mainer. > But if you decide to stay after a winter you are a Main-iac. > > On 6/12/12, Stephen Richey <stephen.richey at gmail.com> wrote: >> Darn Maine-iacs...always causing trouble. >> >> On Tue, Jun 12, 2012 at 2:00 PM, Bjorn, Pret <pbjorn at emh.org> wrote: >> >>> Hey, it wasn't me who was factitious. Or facetious. Factious, perhaps. >>> But I'm REALLY best at fatuous. Anyway, it wasn't me. It was Torrey. >>> >>> Still: we surely agree that the caliber and velocity may predict the >>> wound. But really, are you going to believe the bullet, or your lying >>> eyes? That is, when was the last time you rushed back to the ICU to >>> change >>> your orders or head to the OR after discovering that the weapon was >>> falsely >>> described? >>> >>> Pret >>> >>> >>> >>> >>> -----Original Message----- >>> From: trauma-list-bounces at trauma.org [mailto: >>> trauma-list-bounces at trauma.org] On Behalf Of Gross, Ronald >>> Sent: Tuesday, June 12, 2012 1:54 PM >>> To: 'Trauma-List [TRAUMA.ORG]' >>> Subject: RE: Ballistics >>> >>> You have no intention of being factitious - now you are poking just to >>> poke!! The fact is that the damage and zone of injury from a 22 cal is >>> NO >>> was close to that seen with an M16 or a 45 cal, nad management of high >>> velocity large mass missiles is MUCH different than the smaller low >>> velocity missile. >>> >>> Pret, you know better then that! >>> >>> Ron >>> >>> -----Original Message----- >>> From: trauma-list-bounces at trauma.org [mailto: >>> trauma-list-bounces at trauma.org] On Behalf Of Larry Torrey >>> Sent: Tuesday, June 12, 2012 12:40 PM >>> To: trauma-list at trauma.org >>> Subject: RE: Ballistics >>> >>> So at the risk of sounding factitious - and it is truly not my intent to >>> do so - please tell me how the caliber or round characteristics impact >>> the >>> management of the patient. >>> >>> If you receive a pt in the ER with, say, an abd GSW, how would you >>> approach this patient is it were known that he was show with a 9mm vs a >>> .357 vs a .223 rifle? >>> >>> Additionally, do you even get this information at pt presentation? I've >>> spent my career in ERs that get some penetrating trauma but not a lot, >>> and >>> I don't recall the last time I received accurate ballistics information >>> in >>> the ER absent a suicide. >>> >>> LT >>> >>> Sent from my 4G DROID >>> >>> -----Original message----- >>> From: "McSwain, Norman E" <nmcswai at tulane.edu> >>> To: "Trauma-List [TRAUMA.ORG]" <trauma-list at trauma.org> >>> Sent: Tue, Jun 12, 2012 12:20:15 EDT >>> Subject: RE: Ballistics >>> >>> Pret >>> >>> Lance is correct. It is very important to those of us who make critical >>> decisions in trauma management. I use this kind of information every time >>> I >>> see a such a patient. >>> >>> I guess it depends on your need. If you don't see much penetrating trauma >>> you will not have much need for it >>> >>> Norman >>> Professor, Tulane Univ, Surgery >>> Trauma Director, Spirit of Charity Trauma Center, ILH New Orleans, >>> 504-988-5111 >>> >>> >>> -----Original Message----- >>> From: trauma-list-bounces at trauma.org >>> [mailto:trauma-list-bounces at trauma.org] On Behalf Of Stuke, Lance E. >>> Sent: Tuesday, June 12, 2012 10:41 AM >>> To: Trauma-List [TRAUMA.ORG] >>> Subject: Re: Ballistics >>> >>> Good question and I believe the answer is definitely yes, especially for >>> surgeons in places with high volumes of penetrating trauma. In some >>> situations understanding, or more importantly - respecting, the >>> significant >>> energy exchange which can happen in a GSW can guide care or certainly >>> raise >>> the index of suspicion for other injuries such as surrounding blast >>> effect. >>> This is particularly true with high energy weapons such as an AK-47. At a >>> center such as ours here in New Orleans, where 60% of our trauma >>> activations are for penetrating trauma, understanding ballistics is >>> critical to the comprehensive care of the trauma patient. Besides, it's >>> pretty cool stuff! >>> >>> Stuke >>> >>> Lance Stuke, MD, MPH >>> Associate Program Director >>> LSU Department of Surgery >>> Spirit of Charity Trauma Center >>> New Orleans, LA >>> >>> >>> >>> On Jun 12, 2012, at 10:00 AM, "Bjorn, Pret" <pbjorn at emh.org> wrote: >>> >>>> Been awhile: has somebody discovered some new way in which any of this >>> is important to healthcare providers, at any level? >>>> >>>> In previous debates on the List, I think the majority opinion has been >>> that ballistics is a science far more important to the killer than the >>> healer. >>>> >>>> Skunk poked. >>>> >>>> Pret Bjorn, RN >>>> Bangor, ME USA >>>> >>>> >>>> >>>> >>>> -----Original Message----- >>>> From: trauma-list-bounces at trauma.org >>>> [mailto:trauma-list-bounces at trauma.org] On Behalf Of McSwain, Norman E >>>> Sent: Tuesday, June 12, 2012 10:41 AM >>>> To: Trauma-List [TRAUMA.ORG] >>>> Subject: RE: Ballistics >>>> >>>> Christos >>>> >>>> Energy exchange is affected by 1)the number of tissue particles hit by >>> the penetrating object, and by 2)the momentum of the projectile. The more >>> energy exchange therefore the more damage to the patient. >>>> >>>> NUMBER OR PARTICLES HIT during transit of the projectile *The more >>> dense the tissue, the more particles that will be hit and the more energy >>> exchange that will result. The body can be divided into 3 tissue >>> densities for convenience of discussion. >>>> -Air density such as the lung; >>>> -water density such as muscle and soft tissue; and hard density such >>> as the bone. >>>> >>>> *the larger the frontal projection of the penetrating object the more >>>> tissue particles hit. Three things happen to the projectile that can >>>> increase the frontal projection >>>> - tumble: if the bullet rotates to 90 degrees then it has a much >>> greater frontal surface than if it simply goes though in a straight line. >>>> -deformation: if the projectile spreads out (mushrooming) such as >>>> hollow point bullets or other mechanism used to produce spread at the >>>> time of traversing tissue >>>> - Fragmentation: Fragmentation can occur as the projectile1) leaves >>>> the muzzle (shotgun) or 2) when inside the tissue (exploding rounds) >>>> >>>> [By a *hard nose round*, I mean a round that is solid and does not >>>> fragment or mushroom. This is usually a round(bullet) that has >>>> slightly oblong nose that is covered my solid metal. Many target >>>> rounds are so shaped] >>>> >>>> 2 >>>> MOMENTUM is related to Kinematic energy. KE = mass/2 x V (Velocity >>>> squared) >>>> For discussion momentum can be divided into: >>>> *low energy - knives and cutting instruments *medium energy - hand >>>> guns with ~1000 f/s muzzle velocity *high energy - long guns with >>>> ~2000 f/s muzzle velocity >>>> >>>> This is very brief description. More detail is in the "Kinematics" >>>> chapter of the PHTLS text book >>>> >>>> >>>> >>>> Norman >>>> Professor, Tulane Univ, Surgery >>>> Trauma Director, Spirit of Charity Trauma Center, ILH New Orleans, >>>> 504-988-5111 >>>> >>>> >>>> -----Original Message----- >>>> From: trauma-list-bounces at trauma.org >>>> [mailto:trauma-list-bounces at trauma.org] On Behalf Of Christos Giannou >>>> Sent: Tuesday, June 12, 2012 2:05 AM >>>> To: trauma-list at trauma.org >>>> Subject: Ballistics >>>> >>>> Dear Norman, >>>> >>>> What do you call a "hard nose round"? >>>> >>>> There are many (hundreds?) of handgun bullets that have been developed >>> by private industry, most are concerned with what is euphemistically >>> called "stopping power". >>>> >>>> As you well know, tissue damage after ballistic injury is the result >>> of effective transfer of kinetic energy. Velocity of the bullet at point >>> of impact, and whether it stays in the body or exits, is only one factor. >>>> That is why "high-velocity bullet" means very little in terms of wound >>> ballistics. >>>> >>>> A bullet that deforms or fragments transfers more kinetic energy than >>> one of similar mass and velocity that does not. That is the definition of >>> a "dum-dum" bullet, that the British army invented to better fight the >>> Afridi Afghans in 1897. >>>> >>>> If you mean a bullet with a steel or tungsten core, I believe that >>> this only increases the penetrating power of the bullet (therefore can be >>> used against armour), but does not increase its kinetic energy. >>>> >>>> Just wondering about Louisiana ballistic practice. >>>> >>>> regards >>>> christos giannou >>>> >>>> -- >>>> christos giannou >>>> Monemvasia Lakonia >>>> 23070 Greece >>>> tel & fax: (++30) 27320-61772 >>>> -- >>>> trauma-list : TRAUMA.ORG >>>> To change your settings or unsubscribe visit: >>>> http://www.trauma.org/index.php?/community/ >>>> -- >>>> trauma-list : TRAUMA.ORG >>>> To change your settings or unsubscribe visit: >>>> http://www.trauma.org/index.php?/community/ >>>> ---------------------------------------------------------------------- >>>> ------------------------------------- >>>> This email message, including any associated files, is for the sole >>>> use of the intended recipient(s) and may contain information that is >>>> confidential, privileged, or subject to copyright, trade secret or >>>> other protection. 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If you are not an intended >>> recipient of this message, >>> please notify the sender immediately by replying to this e-mail, and >>> delete the original and all >>> copies of this message from your computer or other device. >>> >>> -- >>> trauma-list : TRAUMA.ORG >>> To change your settings or unsubscribe visit: >>> http://www.trauma.org/index.php?/community/ >>> >> >> >> >> -- >> Stephen Richey >> Founder and Chief Researcher/Designer >> Kolibri Aviation Safety Research >> 5174-B Winterberry Circle >> Indianapolis, IN 46254 >> 317-985-4740 >> >> "I think the best thing, and the only thing in our infinite inadequacy in >> making up for the loss of life, is to say something we have been able to >> say in a lot of other accidents to grieving families. That is 'Those >> deaths will not be in vain. We will not let them be in vain. Every one of >> those lives will be made to count in terms of making sure that three, four, >> five or ten other people do not die."- John J. Nance >> -- >> trauma-list : TRAUMA.ORG >> To change your settings or unsubscribe visit: >> http://www.trauma.org/index.php?/community/ >> > > > -- > > V/R > > Forrest Robleto, NCEE > R House Health & Safety > www.RHouseTraining.com > FRobleto at RhouseTraining.com > 609-792-9047 > > Cogito ergo es > -- > trauma-list : TRAUMA.ORG > To change your settings or unsubscribe visit: > http://www.trauma.org/index.php?/community/ ----------------------------------------------------------------------------------------------------------- This email message, including any associated files, is for the sole use of the intended recipient(s) and may contain information that is confidential, privileged, or subject to copyright, trade secret or other protection. This message also may contain information protected by state and federal privacy laws that are enforced through serious civil and criminal sanctions. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not an intended recipient of this message, please notify the sender immediately by replying to this e-mail, and delete the original and all copies of this message from your computer or other device.
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