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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_725_Библиотеки_им_академика_М_И_Перельмана

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But, whatever you do, remember that old and chronically ill patients poorly tolerate
repeatedepisodesofbleeding;donotmessaroundwiththem.Asaroughguide,when
thetransfusionrequirementexceeds4units ofbloodina patientover65yearsofage,
consider surgery (or angiography). Yes, we know it is a rough guide but surgical
decisionsarerough.
Angiographictransarterialmanagement?
Asmentionedabove,insomecenterstherapeuticarteriographyisthe next stop for patients failing endoscopic hemostasis. Not surprisingly, assessingtheresultsofvariousmanagementoptionsinsuchpatientsis difficult,butitseemsthatembolizationisassociatedwithahigherrateof rebleedingthansurgery,andischemiccomplicationsatthetargetorgans arenotuncommon.Ofcourse,aseverythinginlife,itdepends—inthis case on your local expertise. We would consider this option as an alternative to an operation in special circumstances — for example, a bleedingDUwhentheriskofoperativeinterventionwouldbeprohibitive (e.g.aftermyocardialinfarction)orUGIBfromapseudoaneurysmofthe splenicarteryassociatedwithchronicoracutepancreatitis.Butagain,in some‘high-tech’centersangiotherapyhasbecomethedefault—notthe alternativetreatment.
Sopractically,thesedaysweare,sorrytosay,‘allowedtooperate’ onlyon patientswho‘have failedeverything’:they bled andbled—
neededlotsofblood;theyhavebeenendoscoped,injected,clippedover and over again;lost more blood, and then dispatched for angiography. We are operatingon a smaller number of patients who are sicker and withmoredemandingsurgicalpathology—nowonderthatpostoperative mortalityandmorbidityinsuchpatientsremainshigh.Butthisistypical
ofmodernmedicine:twostepsforward,oneback—likeafrogina well.
Notin our center. Havingexpert angiographers available atall times, notonly do weoperate
muchless,butveryrarelydoweseemortalityanymorefrompepticbleeding(Iamnottalking
aboutvaricesandend-stageliverfailure).Icertainlydon’tmissoperatingonthe‘bleeders’with
theassociatedM&MthatIstillremember.Danny
Operativemanagement
So finally, you decided to take the (optimally resuscitated, we hope) patienttotheOR.Considerrepeatingtheendoscopy!
ItiscrucialthatyouknowtheexactlocationintheUGItractfromwhere thepatientisbleeding.Iftheinitialendoscopywasnotdonebyyou,orin your presence; play it again Sam! In an anesthetized patient it will not takeyou morethan5 minutesto insertandremove theendoscope.Do not trust blindly the 2-day-old endoscopy report that the “source of hemorrhage appeared to be in the duodenum”. This could lead you to startwithanunnecessaryduodenotomywhilethesourcelieshighinthe stomach.Oyveyizmir
Exploration
Through a midline upper abdominal incision! No laparoscopy is advisedin suchpatients, exceptin specialcircumstances (e.g.bleeding gastric GIST). A paraxyphoid extension and forceful upward sternal retractionletsyoudealwithanythingintheforegut.Inobesepatientswith a wide costal angle, however, a transverse chevron-type incision may take a few more minutes but affords a more comfortable exposure. In addition, a generous reverse-Trendelenburg tilt of the patient will
bringtheupperstomachalmostintoyournose.
Start by searching for external visual or palpable features of chronic ulceration.Thelatterareinvariablyassociatedwithserosalinflammatory changes.Lookfor evidenceofchroniculcersfrom theduodenumto the gastriccardia.Duodenal‘Kocherization’(TheodorKocherisperhapsthe only surgeon in history to have his name used as a verb) will be necessary to reveal the now almost extinct post-bulbar ulcer in the second portion of the duodenum. Occasionally, a posterior or lesser curvature gastriculcer will become palpable only through the lesser sac. Acute superficial mucosal lesions are unfortunately not
identifiable from the outside, although a Mallory-Weiss lesion may be naturally ‘tattooed’ by the blood with bluish serosal staining at the gastroesophagealjunction.
The finding of a chronic ulcer in accordance with the pre-operative endoscopicfindingtellsyouwherethetroubleis;butwhatistobedone
in the absenceof any external evidence ofpathology? Yes, a rare
situationbutplausible.Youhaveafewoptions:
Proceed according to the endoscopist’s findings — if you trust them…buttheywillnotalwaysbecorrect.
Surgicalexploration.
Intra-operativeendoscopy.
Intra-operativeendoscopy
Having endoscopically visualized, with your own eyes, an actively bleeding DU, you should not have any doubts. A doubtful endoscopic report,however, may promote a negative duodenotomy, extendingit— piecemeal — proximally, until the high gastric lesion is found. All that
was needed was a small gastrotomy and suture ligation of the lesion; instead you are left with a very long, messy and unnecessaryduodenogastrotomytorepair.Toobviatesuchamini-
disaster we would unscrub for a moment and shove in an endoscope. On rare occasions, when the stomach is distended with
huge clots, we would place a purse-string suture at the anterior wall of theantrum,performasmallgastrotomy,andwithalargesuckerremove and irrigate all clots. An endoscope is then inserted through the gastrotomy with the purse-string tightened to allow gastric insufflation; this offers an excellent and controlled view of the stomach and duodenum.Wecall it‘intra-operative retrograde gastroscopy’. Oneday
thismaneuvermaysaveyourbutt!
Philosophyofsurgicalmanagement
Irememberinthelate1970s,inmymedicalschoolinJerusalem,the Professors of Surgery quarrelling for hours about which is better: Hofmeister’s partial gastrectomy or the Polya one? The duels about which pyloroplasty should be done in a specific case — the Heineke- Mikulicz? A Finney? And what about a Jaboulay? — were endless. Today,ayoungsurgeonwhocanrecognizeevenoneofthosenames,let alone pronounce them correctly, is considered a doyen of history. The timestheyarea-changin’,eh?
A friend of ours, Asher Hirshberg, aptly stated: “In the era of
Helicobacter pylori, doing a gastrectomy for peptic ulcer is like doing a lobectomy for pneumonia.” Clearly, where potent anti-ulcer
drugsareavailable,electiveulcersurgeryhasdisappearedanddefinitive anti-ulcer procedures during emergency surgery for complications of ulcersaredisappearingrapidly(nay,theyhavetotallyvanished)aswell.
Why do asurgical vagotomy when protonpump inhibitors offera ‘medicalvagotomy’?
The general philosophy is that the role of the surgeon is to prevent the patient dying of blood loss. This is the main consideration in severely ill patients. Other considerations are
secondary.
Are there any situations left when adding a definitive anti-ulcer procedure would be reasonably indicated? While in the previous
editionswementioneditasaviableoptionin‘selectedpatients’wenow believe that such procedures are indicated only if dictated by anatomical constraints, as discussed below. However, in the ‘developing world’, when proper anti-ulcer medications are not readily available,onecouldconsideraddingananti-ulcerprocedureforchronic ulcers in reasonably stable patients (e.g. a homeless patient in St. Petersburg—ortheuninsuredhoboinFlorida—withachronicgastric ulcerandahistoryofrecurrentUGIB).
Thatis — ifyou stillknow howto doit. BTW: when was the last timeyouperformed,orwatched,avagotomy?
Specificsourcesofbleeding
Duodenalulcer(DU)
If anyone should consider removing half of my good stomachtocureasmallulcerinmyduodenum,Iwouldrun fasterthanhe.
CharlesH.Mayo
Aboutgastrectomyforduodenalulcer:inthisoperation…a segment of an essentially normal stomach is removed to treatthediseasenextdoorintheduodenum.Itisliketaking outtheenginetodecreasenoiseinthegearbox.
FrancisD.Moore
Thesourceofbleedingisalwaysthegastroduodenalarteryatthe base of a posterior ulcer. Hemostasis is accomplished through an
anterior,longitudinalduodenotomy,underrunningthebase(andbleeding vessel) with two or three (2-0 or 0, a monofilament or Vicryl®) deeply
placed sutures — each placed on a different axis. When bleeding is active,successfulligationofthevesselwillbeevident;initsabsenceyou may want to abrade the ulcer’s base, dislodging the clot and inducing bleeding. Otherwise, just underrun the base, deeply, and in a few directions.Thetheoreticaldangerofunderrunninganearbycommon
bileducthasbeenmentionedbutweareunawareofevenasingle reportofsuchacase — however,never saynever; s**tcan happen!
Others have described ligating the gastroduodenal artery from the outside,above andbehind theduodenum. Wehavenoexperience with this and would be anxious fishing for the artery at the base of the gastrohepatic omentum which would be inflamed by the adjacent ulcerating process. Now carefully close the duodenotomy without constricting the lumen, and getout. Local hemostasis can beachieved even in the base of giant ulcers or when the duodenum is extremely inflamed or scarred. When simple closure of the duodenotomy
appears to compromise the lumen or pyloroplasty is deemed otherwise unsatisfactory, just close the duodenum and do a posterior gastroenterostomy(GE). Of course, this is an ‘ulcerogenic
anastomosis’! But such patients will receive proton pump inhibitors for life;thatisifvagotomyisnotadded.Theeventualcureoftheulceris
lefttoacid-reducingdrugsandanti-Helicobacteragents.
Figure17.2. Gastroduodenostomy: note thatthe posterior aspectof the anastomosis is performed with ‘heavy’ (e.g. Vicryl® 2-0) interrupted sutures, taking ‘big bites’ in the
posterior‘lip’ oftheduodenum(whichisadherentto the pancreas) —wellintothescar tissueatthebaseofthe(nowexcluded)ulcer.
Whichdefinitiveprocedureshouldyouselectintherarepatient?
Obviously, this is considered only in a patient who is stable hemodynamically and otherwise in a reasonable shape! Our choice would be adding a truncal vagotomy (TV), extending the
duodenotomyacrossthepylorus,andclosingittoformaHeineke­Mikuliczpyloroplasty.Whenandiftheduodenumisextremelyscarred
andfriablewewoulddo a gastroenterostomyrather than pyloroplasty — just patch the duodenotomy the best you can and hook a proximal loopofjejunum,sidetoside,totheantrum.
Is there any indication for an antrectomy? The proponents of
antrectomyplusvagotomyforbleedingDUsclaimanincreasedincidence of rehemorrhage when gastric resection is avoided. In over 100
emergency operations for bleeding DUs, this has not been our experienceandwebelievethatthereisnosenseinremovingahealthy stomach, producing a gastric cripple, for benign duodenal disease — whichin any case can be subsequently cured with medications.When, however,theduodenumisvirtuallyreplacedbyahugeulcerinvolvingthe anteriorandposteriorwalloftheduodenalcap-bulb(‘kissingulcers’),one essentiallyis forced to performanantrectomy(plus/minus a truncal vagotomy). In this situation, to avoid creating a duodenal stump which can be difficult to close and can leak, we prefer a Billroth I gastroduodenostomyasdepictedin Figure17.2).
Gastriculcer(GU)
In the previous editions we bored the hell out of our readers with a complexclassificationofgastriculcers,recommendingdifferentdefinitive anti-ulcer procedures, based on the specific type of the GU. This has
become irrelevant as, irrespective of the location and type of the ulcer, youraim is to achievehemostasis by thesimplest possible maneuver.Inmostcasesallthatisrequiredissimpleunderrunning
of the lesion through a small gastrotomy. In large chronic gastric
ulcers we first underrun the bleeding point with an absorbable suture; withaheavyabsorbablesuturewethenobliteratetheulcer’sbase.UGIB fromamalignantulcerveryrarelyrequiresanemergencyoperation.We would, however, take tissue from the ulcer’s edges for histology. For bleedingulcerssituatedatthegreatercurvature,wedgeresectionofthe bleedingulcermayappearmorepractical.Partialgastrectomybecomes necessaryonlyincasesofagiantGUonthelessercurvaturewithdirect involvementoftheleftgastricorsplenicarteries.
JuxtacardiallessercurvatureGUsandtheso-called‘ridingGU’
A riding GU,also called a ‘Cameronulcer’is a variant ofa highGU associatedwithaslidinghiatalhernia,producedbyinjurytotheherniated stomach, ‘riding’ against the diaphragm. Typically, such ulcers are multiple and shallow, and present clinically with chronic UGIB and associated iron deficiency anemia. However, solitary, deeper ones can presentas life-threatening UGIB. Rarely, when conservative/endoscopic therapyfails,anoperationmaybeindicated:itcomprisesreductionofthe
stomachbypinching theulceraway fromtheadherentdiaphragm,local hemostasis,and crural repair. Thismaybe easier saidthandone since occasionallythehugeridingulceradherestomediastinalstructuresand mayrequiremajorresectivesurgery.
Inconclusion,thegenerationofsurgeonsraisedonthedogma that a complicated GU
hastoberesectedisbusyretiringordyingoff(thisincludesus…).Themodernsurgeon
shouldattackthebleedingGUwiththesimplestprocedurepossible,asdictatedbythe
specificanatomyencountered.
Anastomotic(stomal)ulcer
This ulcer develops on the jejunal side of the gastrojejunal anastomosis following a previous vagotomy (or when vagotomy was omitted or is ‘incomplete’) and gastroenterostomy or Billroth II gastrectomy. Because stomal ulcers almost never involve a large
blood vessel, hemorrhage is usually self-limiting or amenable to endoscopictherapy. Rememberalsothat allstomalulcers willhealon
modern acid-suppressing medications. Persisting or recurrent hemorrhage, however, will forceyou, rarely, tooperate. In thehigh-risk patientdotheminimum:throughasmallgastrotomy,perpendiculartothe anastomosis,examinethestomaandulcer;underrunthelatterwithafew deeply placed absorbable sutures; close the gastrotomy and put the patientonH2antagonistsorPPIsforlife.
The role of a definitive procedure is limited, following the above stated philosophy. If the previous operation was a vagotomy plus GE, look for a missed vagal nerve or add an antrectomy. In the case of a previousBillrothIIgastrectomy,addTVorconsiderahighergastrectomy (donotforgettoruleoutZollinger-Ellisonsyndromelateron).Remember
— hemorrhage froma stomal ulcercan be arrested with asimple surgicalmaneuver(underrunning);trytostayoutoftroublebynot escalating the emergency procedure into complicated reconstructivegastricsurgery,whichmaykillyourbleedingpatient.
UGIBaftergastricbypassproceduresformorbidobesity
Thisnotuncommonentityshouldbeaddressedasanystomalulcer.If endoscopic hemostasis fails, just overrun the bleeding ulcer through a gastrotomyinthe‘gastricpouch’immediatelyabovetheanastomosis.
However, bleeding ulcers may develop in the distal, excluded stomachortheduodenum—locationswhicharenotaccessibleto conventional endoscopy. Angiography (diagnostic/therapeutic) is a
reasonable option; percutaneous, lap-assisted endoscopy has been described as well. If forced to operate you may want to resect the excluded,ulceratedstomach.
Dieulafoy’slesion
This small, solitary and difficult to diagnose gastric vascular malformationtypicallycausesarecurrent‘obscure’massiveUGIB.
Ifnotcontrolledbyendoscopicmaneuvers(orangio),theyhavebecome these days not an uncommon indication for UGIB surgery. Surgeons continuetodebatewhattodoafterthelesionhasbeenexposedthrough an anterior gastrotomy: local excision?; underrunning?; do it through a laparoscope?Well,juststopditheringanddealwiththebleedingthebest youcan!
Acutesuperficialmucosallesions
Duetoeffectiveanti-ulcer prophylaxisincritically illpatients,youmay neverbecalledupon tooperateonsuchlesions.Intheremotepastwe hadtointerveneinafewsuchcaseswhosediffusebleedingfrom‘stress gastritis’persisted despite managementwith PPIs and vasopressin. Of
course,endoscopictreatmentsareuselessinthissituationasthe involvedgastricmucosalooksandbehaveslikeablood-soakedand drippingsponge.Surgicaloptionsmentionedbythestandardtextbooks
includeTVand drainage or total gastrectomy. The former is associated with a very high rate of rebleeding and the latter with a prohibitive mortality rate. In this situation we have carried out gastric
devascularization by ligating the two gastroepiploic, and left and
rightgastricarteriesnearthestomach’swall.Inourexperience,this relatively simple and well-tolerated procedure results in an immediatedryingofthegastricsponge.
Torecap…
AdmitpatientswithUGIBtoyoursurgicalservice.Donotleavethemto the internists who will call you when the patient is almost dead. After resuscitation diagnose the source of hemorrhage and stage it. Give endoscopictreatmentachancebutdonotdelayanindicatedoperation.
At surgery the goal is to stop the bleeding — remembering that mostulcerscanbecuredlateronbymedication.Lifecomesfirst.
Perhapsthisrhymewillhelpyoutoremember…
Whenthebloodisfreshandpinkandthepatientisold Itistimetobeactiveandbold. Whenthepatientisyoungandthebloodisdarkandold Youcanrelaxandputyourknifeonhold.
1
AcutePhysiologyandChronicHealthEvaluationII.
2
Moveyourass.