age 5 . AHA recommends abdominalthrust to be applied in rapidsequence until the obstruction isrelieved 2 . If abdominal thrustsare not effective, the rescuer mayconsider chest thrust. Chestthrust may also be primarily consideredin obese and pregnantvictims. If the adult victim withFBAO becomes unresponsive,the rescuer should carefully supportthe patient to the ground,immediately activate EMS, andthen begin CPR. During CPR,when airway is opened, the rescuershould look for an object inthe victim’s mouth and removeit finger sweep is to be done onlywhen the provider can see solidmaterial obstructing the airwayof an unresponsive patient.Paediatric BLSThe basic sequences of steps forCPR are almost similar to adultswith few exceptions. Asphyxialarrest is more common in childrenthan the cardiac cause forarrest, thus mandating 5 cycles ofCPR before activating EMS. Inchildren if 2 rescuers are presentthen cycles of compression toventilation changes to 15:2. If thevictim has perfusing rhythm (i.e.pulse present) but no breathing,then 12-20 breaths / minute (1breathe every 3-5 sec) is to begiven. The compression site forinfant is just below the nipple line(lower half of sternum) and use2-3 fingers or thumb encirclinghands for chest compression ininfants. The depth is approximately1/3 to ½ of the depth ofchest. For defibrillation, childpads are to be used. Infants
3An Approach to a Case of Lower Gastrointestinal BleedingCommentaryPremashis KarDepartment of Medicine, Maulana Azad Medical College, New Delhiower gastrointestinalbleeding traditionallymeans bleeding from sites Ldistal to the ligament of Treitzthat presents as rectal bleeding.The may be overt oroccult.Lower GI hemorrhage isdefined as an abnormal intraluminalblood loss from a sourcedistal to the ligament of Treitz.This bleeding may be overt oroccult, and overt bleeding can beacute massive or chronic a usefulsubdivisions for clinical purposes.Clinical presentation-Lowergastrointestinal bleeding maypresent as acute massive, chronicintermittent or occult rectalbleeding. Massive hemorrhage isa life-threatening condition andrequires transfusion of at least 5units of blood. Patients withmassive hemorrhage present witha systolic blood pressure of lessthan 90 mm Hg and a hemoglobinlevel of 6 g/dL or less. Thesepatients are usually aged 65 yearsand older, have multiple medicalproblems, and are at risk of deathfrom acute hemorrhage or itscomplications.Causes of lower GI bleeding-Most bleeding from the lowergastrointestinal tract is of colonicorigin, with some from sites inthe small intestine distal to theligament of Treitz. However,around 15-20% of episodes oflower gastrointestinal bleedingare thought to arise from moreproximal parts of the small intestineor the upper gastrointestinaltract. Hemorrhoids areprobably the most commoncause of lower GI bleeding. Analfissures may also present asbleeding. If these local anorectalprocesses are excluded, themost common causes of lowerGI bleeding in adults are-Diverticulosis; Angiodysplasia;NSAIDs; Neoplasma; Inflammatorybowel disease-Ulcerativecolitis, Crohn’s disease; Mesentericvascular insufficiency – Ischemiccolitis; Radiation colitis;Infectious colitis. Less commoncauses of lower gastrointestinalinclude-Meckel’s diverticulum;Vasculitides; Small intestinalcauses such as Vascular ectasias,Diverticula,Ulceration; Intussusception;Endometriosis; Bleedingin runners; Dieulafoy’s lesions;Visceral arterial aneurysm; AIDS-HIV associated thrombocytopenia,Cytomegaloviruscolitis,Idiopathic colonic ulcers,Colonichistoplasmosis, Kaposi’s sarcomaof colon; Stercoral ulce. Basedon the data of three large studies1,2,3 published from India, thecauses of lower GI bleeding are-Non-specific colitis,Ulcerativecolitis, Rectal ulcers, Polyps, Neoplastic,Colonic tuberculosis, Entericfever. Diverticular disease ofcolon is a rare entity in our country4 ; true incidence of which isnot known.Physical examination-Physicalexamination is helpful for assessingthe extent of bleeding but anyfindings are too non-specific todetermine the cause. Patientswho lose 15-20% of their bloodvolume will present with orthostatichypotension; shock occursafter 25-35% blood loss. Patientswith chronic blood loss may notshow Orthostatic changes, butoften have signs of anemia suchas pallor. The skin should becarefully inspected for stigmataof liver diseases as well as presenceof telangiectasia. The abdomenshould be assessed fororganomegaly, masses, and tenderness.Presence of reboundtenderness or guarding should benoted and is relativecontraindications to colonoscopy.The pitch and frequency ofbowel sounds as well as any bruitshould be noted.The perianalarea should be inspected for fissures,hemorrhoids, masses, andfistula. Digital rectal examinationshould be directed at identifyingmasses and strictures; in additionany material on the gloved examiningfinger should be assessedfor colour, amount, consistency,presence of stool, and tested foroccult blood unless obvious.Anoscopy and sigmoidoscopyshould be done in every patientwith lower gastrointestinal bleedingbecause it may detect obvious,low-lying lesions such asbleeding hemorrhoids, anal fissure,rectal ulcer, proctitis, or rectalcancer. The procedure is dif-Journal of Postgraduate Medical Education, Training & Research7
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