Surgical Emergencies Flashcards
What is the most common GI emergency in Neonates?
NEC
Name the clinical findings a/w NEC
Abdominal Distension
GI bleeding
Pneumatosis intestinales
Can NEC be reversed?
No, not even if you intervene early.
Have to ride it out.
Name 4 risk factors for NEC
- Prematurity
- CHD
- Neonatal Distress
- Enteral Feeding
Mortality is ___-___% higher for pan-intestinal necrosis
20-40% higher
Name the Absolute indications for OR intervention for NEC
-Pneumoperitoneum
-Peritonitis (diffuse)
-Clinical deterioration
-Sepsis refractory to medical therapy
-Intestinal obstruction or stricture
(happens w/healing from primary NEC epsiode/scarring ~3-4 wks after repair w/increased fdg vols-can’t advance)
Name Relative indications for OR intervention for NEC
- Abdominal wall erythema
- Fixed loop of intestine
- Portal venous gas
- Positive paracentesis
- Thrombocytopenia
Bilious emesis + toleration of initial feedings = ? -until proven otherwise
Malrotation + Midgut Volvulus (twisting)
When Malrotation & Midgut Volvulus is suspected on x-ray, what test is ordered?
Why?
Upper GI (limited series) It looks at rotational anatomy
If a Malrotation & Midgut Volvulus is not caught early, it can be ?
Catastrophic
What might be seen on Upper GI w/Malrotation & Midgut Volvulus?
What should the Duodenum look like?
A corkscrew appearance to the contrast passing through the intestines.
A “C” shape
Besides Upper GI series, what else is likely needed w/Malrotation and Midgut Volvulus?
Emergency Surgery
What does Normal Rotational Anatomy do to the Mesentery?
Broadens the base of the mesentery preventing twisting
The mesentery takes blood vessels from the ______ out into the _________.
Aorta
Intestine
Failure of Rotation—>
Failure of broad base of mesentery. It will look like a tree trunk w/top heavy tree that can twist.
Malrotation w/Midgut Volvulus compromises what?
The entire Midgut
-intestines supplied by Superior Mesenteric Artery from Duodenal-Jejunal junction to mid-transferse colon
In surgical repair of Malrotation w/Midgut Volvulus, what do they do?
360 degree Counterclockwise Detorsion followed by a second 360 degree Counter clockwise Detorsion
What congenital attachments are noted during surgical correction of Malrotation w/Midgut Volvulus?
What do they do with them?
LADS bands
They try to remove them and broaden the base of the mesentery so the Duodenum is on the Rt & Cecum is in Left, upper quadrant, appendix removed.
Does the anatomy remain abnormal after surgery?
Is there chance of re-vovlulization?
Yes
5-15% chance re-volvulization
7 out of 10 times, bilious emesis is ?
Nothing, but check anyway.
Name the Nursing considerations for Malrotation w/Midgut Volvulus.
-GI decompression
-Prepare for transport (radiology, OR, transfer)
-Post-op (resumption of bowel activity-could take a week)
they tend to get an ileus and have bilious residuals (are TPN dependent for a little while)
What Dx do you suspect in an infant who begins vomiting bile stained fluid in first few hrs of life?
Duodenal Atresia
What might be noted on prenatal US with Duodenal Atresia?
Polyhydramnios
What other anomalies is Duodenal Atresia A/W?
50% a/w: Cardiac, GU, Anorectal, or esophageal abnormalities
40% have Trisomy 21
30% have Malrotation
Is repair of Duodenal Atresia a surgical emergency?
No, not usually-there’s time to do heart ECHO and Renal US first.
**unless a/w malrotation (15-30%)
85% of Duodenal Atresia occur where?
Post-Ampullary (after common bile duct drains into the Duodenum)
What is Duodenal Atresia thought to be caused from?
Failure of recannalization of the lumen of the intestine during development (wks 8-10).
What is the surgical treatment of Duodenal Atresia?
Web excision or Duodenoduodenostomy with or w/o tapering
How long can it take to get feeds going?
Weeks. Just watch and wait
Do surgeons usually remove Duodenal webs?
No, they usually just bypass them.
Jejunal and ileal atresias are caused by?
Intra-Uterine vascular events
10% of jejunal and ileal atresias are what?
Multiple
What does surgical tx of Jejunal and ileal atresias involve?
Resection of stenotic or dilated bowel and anastomoses with or w/o tapering
What is a type 1 Membraneous Atresia?
Is significant length lost w/this type of atresia?
There’s continuity of the bowel wall but no Luminal continuity (probably a late-gestation insult)
No, they sew the ends back together, babies do quite well.
What is notable with a type 2 Atresia?
When did insult likely happen?
There is an intestinal remnant and a large size discrepancy.
Very early in gestation (providing time for the bowel to become very dilated)