Surgery 2 Flashcards
What is the benefit of using an uncuffed ET tube?
Avoids damaging the larynx
Typically used in children
Cuffed ET tubes are better at preventing aspiration
NOTE: in terms of size, men need 8.5 and women need 7.5
What are the clinical features of radial nerve palsy?
Wrist drop
Loss of sensation over the first dorsal interosseous (webbing)
May have sensory loss over dorsal forearm
Why does an anterior resection require a loop ileostomy?
Rectal blood supply is poor so the colorectal anastomosis must be rested and, hence, covered by a loop ileostomy
What rehabilitation support should be offered to patients with a stoma?
Aim for normal diet
Good skin care and hygiene
Psychosexual support
What is a subtotal colectomy?
All colon excised except distal sigmoid and rectum
Temporary end ileostomy
Rectosigmoid stump may be exteriorised as a mucus fistula
Can be reverse 3 months later with complete proctectomy + ileal pouch anal anastomosis/permanent end ileostomy OR ileorectal anastomosis
Other than the carpal tunnel, where else can the median nerve get trapped?
Pronator syndrome (between heads of pronator teres) Anterior interosseous syndrome (compression of anterior interosseous branch of median nerve in the deep head of pronator teres - causes muscle weakness only)
Describe the management of ileus.
Correct underlying abnormalities (electrolytes and drugS)
Consider the need for parenteral nutrition
What are the main indications for doing a total hip replacement as opposed to a hemiarthroplasty?
Mobilises with no more than 1 walking stick
Not cognitively impaired
Medically fit for anaesthesia and surgery (minimal comorbidities)
Outline how to examine a stoma.
Look at the stoma (colour, surface, bag, contents, surroundings, devices)
Examine the rest of the abdomen
Ask to examine the perineum
Palpate around and inside the stoma with your little finger (need gloves and lube)
REPORT: site, calibre, number of lumens, functioning, healthy
What does Thomas’ test look for?
Fixed flexion deformity in the knee
Causes: osteoarthritis, ACL injury, bucket handle meniscal tear, iliopsoas tightness
Outline the management of popliteal aneurysms and its indications.
Surgical Indications: symptomatic, aneurysms containing thrombus, aneurysms > 2 cm
ACUTE Rx: embolectomy, femoral-distal bypass
STABLE: excision bypass
What are some causes of intradermal lumps?
Sebaceous cyst
Neurofibroma
Dermatofibroma
NOTE: the skin cannot be drawn over the lump
What is the investigation of choice for suspected chronic pancreatitis?
CT scan with IV contrast (to look for pancreatic calcification)
What is the difference between a true and false aneurysm?
TRUE: dilation of the blood vessels involving all layers of the wall, fusiform or saccular
FALSE: collection of blood around a vessel wall that communicates with the lumen, usually iatrogenic (e.g. puncture)
List some associations of Terry’s nails.
Chronic liver failure Diabetes mellitus Congestive heart failure Hyperthyroidism Malnutrition
Describe how the location of varicose veins relates to the veins involved.
Medial and above or below the knee - great saphenous
Posterior and below the knee - short saphenous
Few varicosities with prominent skin changes - calf perforators
How should a breast lump be investigated further?
< 35 years: US
> 35 years: US + mammogram (oblique and craniocaudal)
MRI if multifocal disease or cosmetic implants present
Outline the management principles of claudication.
CONSERVATIVE: structured exercise programme, stop smoking, weight loss, foot care
MEDICAL: RF modification (BP, BM, lipids) , antiplatelets (clopidogrel), analgesia
INTERVENTIONAL: angioplasty, stenting
Under what circumstance is steroid injections for join pain contraindicated?
If they already have some form of join replacement (risks introducing infection)
What is the main indication for a loin incision?
Nephrectomy