Abdomen Flashcards
inheritance patterns of :
Thalessemias
Her sphero
G6PD
SSD
AD
AD
XLR
AR
What is your dg of exclusion for isolated thrombocytopenia?
7 others to evaluate for
ITP
Viral, autoimm, preg/preecl,TTP, HIT, hypersplenism, cirrhosis
When to transfuse for ITP patients
MC bleeding occurrences
Common non bleeding feature that may be severe
less than 20K or active bleeding
Petechia
Epistaxis
Purpura
fatigue
Recent hx questions for suspected ITP
Recent infection, quinine, medications
Lab difference for TTP vs ITP
special lab for either?
microangiopathic hemolytic anemia vs usually normal
AdamTS13 deficiency
Post op care for splenectomy timing
abx at 14 days
Initial tx for ITP
later?
steroids and IVIG
Splenectomy
Tx for TTP
therapeutic plasma exchange
steroids
rituxumab
Reasoning for splenectomy in ITP
for refractory cases where extended steroid use is problematic
2 genetic syndromes associated with desmoids
what other similarity do these share
fap and Gardners
polyps
intra-abdominal desmoid txs
first best step in management
radiation; negative margin resection
watch and wait
What is the PE for femoral hernia
below inguinal ligament
4 borders of femoral canal
sup - iliopubic
inf - cooper
med - lacunar
lat - fem vein
risk of incarceration per year for aysmpt or min sympt inguinal hernia
.3%
For splenectomy, when are platelets given
if needed and after taking artery
inguinal nerves and sensory distribution
overall parastomal hernia rate
50%
Groin anatomical hernia sites
typical symptoms for obturator hernia
medial thigh pain or paraesthesias due to obturator n compression
what percent of obturator hernias present with sbo
50
Why is there pain with hernia?
These are often sites where n and vessels penetrate the abdominal wall
When does umbilical defect usually close
5
medial umbilical ligaments are remnants of…
round ligament is a remnant of ….. also known as…..
left and right umbilical arteries
umb vein; lig teres
falciform anatomy
perks to laparoscopic hernia repair
better healing, easier for obeses patients, multiple defects, better recurrent hernia operation
Go to open hernia repair type and mesh to be used
rives stoppa with uncoated polypropylene
first step for obese patients with non urgent hernias
weight loss
blood supply of lateral abdominal wall
medial?
lumbars intercostals, deep circumflex ilac
epigastrics
below the arcuate line the rectus lies directly anterior to the ….
transversalis fascia
risk factors for incisional hernia development - 4
smoking, steroids, rads, wound infection
main benefit of lap vs open for hernia
lower infection
incisional hernia staging system
Table 2. Incisional Hernia Staging System
Stage I <10 cm, clean
Risk: low recurrence, low SSO
Stage II <10 cm, contaminated
Risk: moderate recurrence, moderate SSO 10-20 cm, clean
Stage III ≥10 cm, contaminated
Risk: high recurrence, high SSO Any ≥20 cm
SSO, surgical site occurrence.
size cutoff for hernia primary repair – ventral
2 cm
2 congenital diaphragmatic hernias and their positioning
what anatomical features failed in each
Bochdalek — post lat —pleuroperitoneal membrane closure
Morgagni — ant med – fusion of septum transversum
elevated diaphragm after diaphragm repair means…
usual treatment
if refractory or severe
phrenic nerve injury
obs
plication or pacing
preferred diaphragm repair approach according to east trauma
lap or open
abdominal due to concomitant injuries
lap if stable
when to use mesh for diaphragm repair?
10cm CHRONIC
2 hard indications for lap over open inguinal repair
bilateral and prior open recurrence
peritoneal sac location relative to cord structures
ant med
chronic pain post inguinal repair initial tx
refractory tx
nsaids, blocks
mesh removal or neurectomy
recurrence rate for inguinal
5-10%
what type of mesh gives best recurrence rate
permanent prosthetic
Relative cx to ventral hernia repair (4)
obesity
preg
smoking
multiple comorbids
anterior abdominal wall perforator relative positions
Describe anterior component separation
pathophys for choledochal cysts
pancreaticobiliary anomalous junction — pancreatic reflux into biliary tress
Mirizzi Types
1 A - patent CD
1 B - obliterated CD
2 - 1/3
3 - 2/3
4 - 2/3+