Quick Notes
196 subscribers
683 photos
4 videos
78 files
8 links
To Remember.
Download Telegram
Multiple air-fluid levels appear in plain X-ray abdomen in case of intestinal obstruction, Why?
-Because during vigorous peristalsis, air enters the distal fluid, results in churning, is the reason to caus multiple air-fluid levels.

•80% of intestinal obstruction is in small bowel.

•80% of small bowel obstructions are due to benign cause.

•70-80% of large intestine obstruction is due to malignancy.

Adhesions (40%) are the commonest cause especially in developed countries.

#Surgery
Distension of bowel in case of IO:
-By gas due to:
1- Swallowed air (70%),
2-From blood in the lumen (20%),
3-From bacterial action and digestion (10%); mainly N2 and H2S.


-Due to fluid mainly of digestive juices which normally get absorbed, but in obstruction absorption ceases and accumulated fluid causes bowel distension (1500 ml saliva, 2000 ml gastric juice, 1000 ml bile, 1500 ml pancreatic juice and 3000 ml from small intestine [succus entericus]); often oedematous bowel wall further secretes more fluid into the lumen aggravating the distension.

#Surgery
PARALYTIC ILEUS:

-Do not stimulate the peristalsis (“Don’t flog a tired horse”).
-Most often, patient recovers in 3–6 days by conservative treatment.
-Measurement of abdominal girth is necessary to see whether patient is recovering or not.
-Neostigmine is used rarely only in resistant cases as medical therapy.
-Considered if it exceeds 3 days or 72 hrs post-opeartive.

#Surgery
Ultrasound criterias for appendicitis (85% Specificity):

-Noncompressible appendix of size > 6 mm AP diameter, hyperechoic thickened appendix wall > 2 mm target sign.
-Appendicolith.
-Interruption of submucosal continuity.
-Periappendicular fluid.


•Contrast CT scan is very much useful when diagnosis is difficult especially in old people.

•It has 95% sensitivity and specificity with 95% accuracy.

#Surgery
Types of Wound Healing

PrimaryHealing (First Intention)
-It occurs in a clean incised wound or surgical wound. Wound edges are approximated with sutures. There is more epithelial regeneration than fibrosis. Wound heals rapidly with complete closure. Scar will be linear, smooth, and supple.

Secondary Healing(Second Intention)
-It t occurs in a wound with extensive soft tissue loss like in major trauma, burns and wound with sepsis. It heals slowly with fibrosis. It leads into a wide scar, often hypertrophied and contracted. It may lead into disability.
-Re-epithelialisation occurs from remaining dermal elements or wound margins.

Healing by Third Intention (Tertiary Wound Healing or Delayed Primary Closure)
-After wound debridement and control of local infection, wound is closed with sutures or covered using skin graft. Primary contaminated or mixed tissue wounds heal by tertiary intention.

#Surgery
Prostatitis is suggested by perineal or suprapubic pain, pain on ejaculation and prostatic tenderness on rectal examination.

#Surgery
In health, bacterial colonisation is confined to the lower end of the urethra and the remainder of the urinary tract is sterile.

#Surgery
Types of Hernia.
#Surgery
Hypertrophic pyloric stenosis of infancy

•A condition of unknown aetiology, in which the pylorus is thickened and elongated leading to gastric outlet obstruction with resultant projectile vomitting and metabolic derangments.

•It occur 3 in every 1000 born child, it is 4 times more common in males, and more common in the first born child, some cases show familial tendency.

•The condition most commonly present 4 weeks after birth, but it can range from as early as 2 weeks, to as late as 7 weeks, but this is rare.

•Non bilious vomitting that soon becomes projectile after 2 or 3 days is the main feature, other features include striking weight loss, dehydration, hyponatremia with a hypokalemic hypochloremic metabolic alkalosis.

•Visible peristalsis after a meal is also found, the Hypertrophic pylorus can also be palpated (olive sign) in the epigastrium or right upper quadrant.

•Investigation of choice is ultrasound (White line is elongated pylorus, black line is thickened pylorus).

#Surgery
Effects and complications of gallstones:

● Biliary colic
● Acute cholecystitis
● Chronic cholecystitis
● Empyema of the gallbladder
● Mucocoele
● Perforation
● Biliary obstruction
● Acute cholangitis
● Acute pancreatitis
● Intestinal obstruction (gallstone ileus)

Differential diagnosis of acute cholecystitis:
Common:
● Appendicitis
● Perforated peptic ulcer
● Acute pancreatitis
Rare:
● Acute pyelonephritis
● Myocardial infarction
● Pneumonia – right lower lob.


#Surgery
Symptoms of appendicitis

● Periumbilical colic
● Pain shifting to the right iliac fossa
● Anorexia
● Nausea

Signs to elicit in appendicitis:

● Pointing sign
● Rovsing’s sign
● Psoas sign
● Obturator sign

Clinical signs in appendicitis
● Pyrexia
● Localised tenderness in the right iliac fossa
● Muscle guarding
● Rebound tenderness

The patient is then asked to point to where the pain began and where it moved (the pointing sign).

#Surgery
Sleeping pulse rate:
Pulse rate counted early morning around 4 am, before the patient wakes up, without disturbing the sleep.

#Surgery
Sign of Moulding:

1-Sebaceous cyst
2-Dermoid cyst
3-Colonic mass with faecal matter.

#Surgery
Fluctuation:
-It's the transmission of an impulse in two directions at right angles to each other, and it implies presence of fluid in the swelling.

#Surgery
-Ascitic fluid less than 500 cc cannot be detected clinically.

-Minimal Ascites (500-1000cc).
-Moderated Ascites (1000-2000cc).
-Severe Ascitis (>2000 cc)

Moderate amount: Shifting dullness.
Tense: transmitted thrill.
•Minimal: knee - elbow.

#Surgery
Swellings that move with deglutition?

1-Thyroid
2-Thyroglossal cyst
3-Subhyoid bursitis
4-Nodes attached to larynx and trachea
5-Laryngocele.
Swellings which are brilliantly transilluminant:

1-Ranula
2-Cystic hygromaand lymph cyst
3-Hydrocele
4-Meningocele
5-Epididymal cyst (Chinese-lantern pattern)
6Hydrocele of the canal of Nuck.

#Surgery
Reducible swellings:

1-Hernia
2-Meningocele
3-Varicocele
4-Saphena varix.

#Surgery
Cold Abscess:

-It is a soft fluctuant swelling without signs of inflammation, which is mistaken for a cyst.
-This is lined by granulation tissue and caseous material.
-It is due to tuberculous infection and contains tubercle bacilli.
-It is not hot.
-Brawny induration, edema and tenderness are absent.

#Surgery
Acute Abdomen definition:
-Any sudden spontaneous nontraumatic disorder affecting the abdomen for which urgent operation may be necessary and undue delay in diagnosis may adversely affect the outcome.

#Surgery
A serum amylase level four times above the normal is indicative of acute pancreatitis.

#Surgery