MRCS A Flashcards
(78 cards)
Nerve commonly injured during inguinal hernia surgery?
Ilioinguinal nerve
Nerve commonly injured during posterior triangle LN biopsy?
Accessory nerve
Nerve commonly injured when using Lloyd-Davies stirrups?
Common perineal nerve
Nerve commonly damaged during thyroidectomy?
Recurrent laryngeal
Nerve commonly damaged during anterior resection of rectum?
Hyogastric autonomic nerves (arise from pelvic splanchnic nerves)
Nerves that could be damaged during axillary LN clearance?
Thoracodorsal - innervates lat dorsi
Long thoracic - innervates serrates anterior (winging of scapula)
Intercostobrachial - cutaneous sensation axilla and medial aspect upper arm
Nerves commonly injured during varicose vein surgery?
Sural nerve (related to short saphenous vein) - lateral aspect of foot/calf
Saphenous nerve (related to long saphenous vein) - medial calf
Nerve commonly injured during posterior approach to hip?
Sciatic nerve
Nerve commonly injured during carotid endarterectomy?
Hypoglossal nerve
Bochdalek hernia
Typically congenital diaphragmatic hernia
85% cases are located in the left hemi diaphragm
Associated with lung hypoplasia on the affected side
More common in males
Associated with other birth defects
May contain stomach
May be treated by direct anatomical apposition or placement of mesh. In infants that have severe respiratory compromise mechanical ventilation may be needed and mortality rate is high
Bochdalek hernia is a diseases of 3 P’s and 3 B’s
1- Birth defect (congenital)
2- Posterior located
3- Big
4- Bad Prognosis
5- Pulmonary hyPoPlais is common
6- Placement of mesh may be needed to treat
Morgagni Hernia
Rare type of diaphragmatic hernia (approx 2% cases)
Herniation through foramen of Morgagni
Usually located on the right and tend to be less symptomatic
More advanced cases may contain transverse colon
As defects are small pulmonary hypoplasia is less common
Direct anatomical repair is performed
Scrotum is drained by which LNs?
Inguinal
Testis drained by which LNs?
Lumbar and para-aortic
Cremasteric artery arises from…
Inferior epigastric artery
Artery of vas deferens arises from…
inferior vesical artery
Layers of spermatic cord/scrotum
Some Damned Examiner Called It The Testes -
Skin, Dartos, External fascia (external oblique), Cremaster (internal oblique), Internal fascia (transversalis), Tunica vaginalis, Testes
Vit K dependent factors
2, 7, 9, 10 (mnemonic 1972)
Measured using PT
NB. warfarin also affects Protein C synthesis
APTT factors
8, 9, 11, 12
Femoral hernia position?
Infero-lateral to pubic tubercle
Inguinal hernia position?
Supero-medial to pubic tubercle
Which blood product can cause iatrogenic gram positive organism infection?
Platelets (because stored at room temp)
Which blood product can cause iatrogenic gram negative organism infection?
Packed red cells (because stored at 4c)
Organisms in Fournier’s gangrene?
Bacteroides and e. coli
Nec fasc most common organism?
Streptococcus