MIX 4 QBANK Flashcards
definition volvulus
twisted 180°
x-ray findings of a cecal volvulus
kidney shape
Bird’s beak
what vascular supply does cecal volvulus rotator around
ileocolic
treatment of cecal volvulus
right hemicolectomy with primary ileocolic anastomosis
treatment of advanced ovarian cancer metastatic
resect so no tumor greater than 2 cm left Debulk: multiple bowel resections Radical hysterectomy-entire pelvic tumor mass Bladder Sidewall Cul-de-sac Titanium Rectosigmoid
Approaches extraperitoneal ventral to dorsal technique
Splenectomy
Total omentectomy
Hepatic resection
Diaphragm peritoneal stripping
symptoms of lidocaine toxicity
earlier signs- tingling of the tongue and lips metallic taste Lightheaded tinitus Visual disturbances
progressive signs-
Slurred speech
Disorientation
Seizures
Cardiovascular: Widened PR interval Wide QRS Sinus tachycardia Ultimately cardiovascular collapse
treatment of local anesthetic toxicity
oxygen airway support
If seizure does not terminate spontaneously:
Benzodiazepine (medazepam)
Or
Thiopental
cardiovascular support may be needed
Intralipid for Marcaine/ bupivacaine
workup for insulinoma and CT scan shows multiple lesions and pancreas
portal venous sampling for localization of highest functional tumors
management of zone one injury
Central- Diaphragm to sacrum Renal hilum lateral contained colon Aorta Vena cava Portal vein Proximal renal vessels Anchors Duodenum
Both penetrating and blood injuries with hematoma should be explored surgically
Zone 2 retroperitoneal injury
lateral
Renal hilum
Kidneys
Adrenals
Superior ureters
Blunt injuries and hematoma did not need to be explored
Left associated colon injury, urinoma, expanding hematoma
Stone to penetrating injuries with hematoma are explored
Zone 3 retroperitoneal injury
inferior central - pelvis Iliac vessels Rectum Distal sigmoid Distal ureters
Stable non-expanding hematomas nonoperative
Hematomas from penetrating injury may need exploration
structures at risk with inferior esophageal mobilization for fundoplication
vagus nerve
Left hepatic artery coming from the left gastric can be encountered
Minor salivary gland tumors most common locations
90% malignant
Palate is the most common origin 50%
lip 15%
buccal mucosa 12%
tongue and floor of mouth 5%
minor salivary gland tumor tissue type in presentation
most
adenoid cystic carcinoma
signs of malignancy:
rapid tumor growth
Pain
Ulceration
Treatment of minor salivary gland tumor
surgical resection with adequate margins
Conclusion:
Involved mucosa
Muscle
Bone
postoperative radiation if: high grade positive margins Perineural spread Deep invasion into muscle bone Lymph nodes Metastases
what hormone is responsible for secretion of bicarbonate and stomach passes food into duodenum
secretary and
causes increased bicarbonate decreased chloride
Heineke-Mikulicz Strictureplasty indications and procedure
Crohn’s stricture
strictures up to 5-7 cm long
Longitudinal incision over stricture closed transversely
Finney strictureplasty indications and procedure
strictures up to 10-15 cm long
loop of stricture as doubled and incised and closed as functional side to side
diagnosis and young female on oral birth control pills with 6 cm liver lesion
hepatic adenoma
imaging findings of hepatic adenoma
early phase enhancement
the management of hepatic adenoma
symptomatic resect
Asymptomatic adenomas stopped oral contraception and followup
Resect before planned pregnancy
boundary of the femoral canal
anterior chest inguinal ligament
Posterior pectineal ligament
Medial lacunar ligament
Lateral femoral vein
what invasive maneuver often needs to be performed for management of femoral hernia
division of inguinal ligament to fully reduce the herniated bowel
splenic septated cyst workup and treatment
most common parasitic source:
echinococcus!
serology
splenectomy
asymptomatic non-parasitic splenic cyst
observed with ultrasound followed
Risk of cyst rupture even with minor trauma when large cyst
Small symptomatic non-parasitic cyst may be excised with a splenic preservation
Cancer most likely to metastasize the spleen
along
primary tumor most likely to be found and spleen
sarcoma
ischemic reperfusion injury after renal transplant
presentation maybe a 36 hours
acute tubular necrosis
treated with fluid resuscitation
may require dialysis
test to confirm vascular occlusion after renal transplant
radioisotope scanning and ultrasound
disseminated intravascular coagulation
causes: Trauma Hemodialysis Obstetric Malignancy Sepsis
thrombin and plasma INCREASE
causes bleeding and clot formation
Antithrombin III and plasminogen levels DECREASE
bacteria associated with emphysematous gallbladder and diabetes
Clostridium perfringens
Paget Von Schroeder syndrome
venous thoracic outlet syndrome
Effort thrombosis
Narrowing of the subclavian AXILLARY vein
At the level of the costoclavicular space
Most medial aspect of thoracic outlet
Sources of compression: First rate Clavicle Subclavius Costal coracoid ligament Anterior scalene Tubercle
If emboli occur: ARTERIAL
described first-degree burn
painful
Erythema
Blanche
Describes second-degree superficial burn
superficial dermis
Painful
Erythema
Blanche
blister
described deep second-degree burn
deep dermis
Painful
Do not blanch
Pale
Mottled
described third-degree burn
subcutaneous fat
heart Left artery Eschar PAINLESS Black, White or RED
tetralogy of fallot findings
overriding aorta
VSD
Right ventricular outflow obstruction
Right ventricular hypertrophy
Management of irreducible inguinal hernia in newborn found to have ischemic bowel-operative approach
Our section can usually be performed through hernia sac!
Most common location and anatomy a hepatic artery And course
and celiac trunk Superior edge of the pancreas Gastroduodenal artery Right gastric artery Courses into portal triad bifurcates into right and left
common variant of left hepatic artery
off of left gastric
localization studies insulinomas
EUS
CT scan - 40%-still done
intraoperative ultrasound most sensitive (careful, gastrinoma not that useful)
Also continues calcium angiography-calcium stimulates increase in tone secretion
criteria to diagnosis primary hyperparathyroidism
increased PTH
Increase calcium
Normal or elevated urine calcium (differentiate from familial hypercalcemic hypocalciuria)
chloride- phosphorus ratio: 33:1
superior vena cava syndrome
diagnosis CT
Bronchoscopy biopsy
Treatment:
Chemoradiation
surgery rarely possible due to great vessel involvement
CMV colitis
immunocompromised
Bloody diarrhea
Endoscopy with biopsy confirms
Treatment ganciclovir
Resection considered only with life-threatening ischemia or uncontrolled bleeding
Or
Peritonitis
Normal right ventricular pressure
appearance on EKG
20-30/0-8
square roots sign
normal pulmonary artery wedge pressure
appearance on EKG
6-15
smooth curves with low amplitude
loss of Dicrotic notch
mechanism of action of heparin
indirect thrombin inhibitor
ACCELERATES antithrombin III activity
aspirin mechanism
irreversible cyclooxygenase inhibitor
electrolyte abnormality seen after full resuscitation of burn
HYPER natremia
even though LR
lactated Ringer’s contains
sodium 130 Chloride 109 Lactate 28 Potassium 4 Calcium 3
normal saline containing
sodium 154
Chloride 154
osmolarity of 308 mOsmol/L
Ascitic! PH 5.5
for epidemiology of trauma what our host, Vector, environment
Host-human
Vector-vehicle
Environment
primary spread of T1 adenocarcinoma esophagus
submucosal
treatment of N1 adenocarcinoma esophagus
en bloc resection
treatment of Merkel cell carcinoma
wide excision
Sentinel node for all
Radiation for all
Innervation of cricothyroid
external branches superior laryngeal nerve
innervation of hypopharynx
glossopharyngeal cranial nerve 9 and vagus nerve cranial nerve 10
course of superior laryngeal nerve
off the vagus and exit skull
This ends internal carotid artery
Divided hilar cartilage into internal and external branches
internal branch of superior laryngeal nerve
lateral thyroid membrane
Sensory after her fibers from the supraglottis and vocal folds
external branch of the superior laryngeal nerve
inferior constrictor anterior medial course
Along with the superior thyroid artery
Into the cricothyroid muscle-motor innervation
Separate from superior thyroid artery 1 cm proximal to arterial entrance of capsule superior pole thyroid
transposition of great vessels
associated:
VSD
Hypoplastic aortic arch
Cyanotic
Treatment FIRST with prostaglandin E. to keep ductus arteriosus OPEN
balloon septostomy can also help
death if untreated
increase risk of ovarian cancer
pain breast with estrogen exposure
including not breast-feeding
Family history of:
Colon
Breast
Endometrial
high-dose ovulation induction
peroneal talc use!
decrease risk of ovarian cancer
oral birth control
Tubal ligation
minimal alveolar concentration
alveolar concentration of inhaled anesthetic required to prevent movement and 50% of patients to noxious stimuli
initial trauma fluid bolus pediatric
20 mL per kilogram x2
then blood
inotropic agent used for pediatric sepsis that’s different then adults
epinephrine more commonly used and kids
stage IV sarcoma of the extremity
with regional node involvement!
any metastases
what lab finding is seen with 21 hydroxylase deficiency
incr 17-OH progesterone
(careful, don’t confused with 17-hydroxylse deficiency)
21 hydroxylase def salt wasting
most common at risk structure with posterior shoulder dislocation
axillary artery
signs of posterior shoulder dislocation
fixed internal rotation
X-ray findings may be so because humeral head directly posterior on AP view
CT scan most helpful
Treatment of posterior shoulder dislocation
immobilization and external rotation
Rate presentation requires open reduction
Structure at risk with anterior shoulder dislocation
axillary nerve
transanal excision of rectal cancer criteria
Local excision of a rectal cancer may be appropriate for a small cancer in the distal rectum that has not penetrated into the muscularis.
mobile tumors smaller than 4 cm in diameter, that involve less than 40% of the rectal wall circumference, and that are located within 6 cm of the anal verge. These tumors should be stage T1 (limited to the submucosa) or T2 (limited to the muscularis propria), well or moderately differentiated histologically, and with no vascular or lymphatic invasion.
sphincter relationship required for LAR
tumor greater than 2 cm from the sphincter muscle
the sphincter involved:
APR
rectal cancer approach that lower stent and postoperative complications
total mesorectal excision
criteria to transfuse platelets for ITP Undergoing surgery
only for significant bleeding
Alternative:
platelets less than 20 -
IV immunoglobulin x2 days
common cause of bleeding after Whipple- was treated in
gastroduodenal stump blowout - often caused by gastrointestinal anastomosis leak
embolization via hepatic artery
fetal circulation
oxygenated blood from placenta was into SINGLE umbilical vein
And 2 IVC
From right atrium to left atrium through the foramen ovale
and from right ventricle to pulmonary artery shunted through ductus arteriosus to aorta
de and oxygenated blood return to consent to be 2 umbilical arteries that come off internal iliac
contraindications to using nitrous oxide
small bowel obstruction
most common complication of renal stone And how can just be related to bowel resection
calcium phosphate
terminal ileum resection causes increased resorption of oxalate in the colon that is excreted in the urine
initial blood pressure management in the ascending thoracic aortic dissection
beta blocker
labetalol or propranolol
pressure remained above 100 pigmentation add nitroprusside
what is contraindicated in spinal cord injury
succinyl choline
hyperkalemia
also avoided in turn
cardiac findings with hyperkalemia
PVCs
Wide complex tachycardia
Torsade de pointes
Cardiac arrest
half life of insulin
7-10 minutes
Insulin response to oral glucose versus IV
or glucose much greater response increase of insulin
pleomorphic adenoma presentation and treatment
most common benign tumor of the salivary glands
90% of the parotid gland
superficial facial nerve
superficial parotidectomy
most common site of aspiration in the lung
right
treatment of one aspiration
most commonly antibiotics
If not cleared in 8 weeks surgery
Surgery indications:
Large cavities over 4-6 cm
Hemoptysis
Need to rule out malignancy
physiologic functions of parathyroid hormone
Inhibits calcium excretion distal convoluted tubules the kidney
Inhibits phosphate reabsorption
inhibits bicarbonate reabsorption
stimulates vitamin D production and kidneys
stimulated vitamin D conversion to active form
operative approach for open treatment of the Zenker’s diverticulum
LEFT neck