Quick Notes
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Quick Notes
This is a polypropylene mesh used for hernioplasty, this provides structural support to a weak defect, it gained widespread popularity especially with inguinal hernias (Lichtenstein tension-free hernioplasty), it can be used for recurrent paraumbilical hernias…
Indications

-Direct hernia.
-Recurrent hernia.
-Re-recurrent hernia.
-Incisional hernia.
-Old age.
-Hernia with weak abdominal muscle tone.
-Sliding hernia.

Complications:

-
Infection.
-Mesh extrusion.
-Foreign body reaction.
-Mesh inguinodynia causing hyperaesthesia and pain along the distribution of ilioinguinal or iliohypogastric nerve.

Contraindications:
-In strangulated hernia, Why?
Because the field is potentially infected.


#Surgery
Types:

Synthetic:
-Prolene mesh (white in colour)see above.
-Dacron mesh,
-Morlex mesh,
-Mersilene sheath.

Biological:"Not used nowadays".
-Tensor fascia lata,
-Temporal fascia and skin.

#Surgery
Types of operations:

-Lichtenstein tension free onlay mesh repair. "most common".
-Nyhus preperitoneal mesh repair.
-Gilbert’s PHS (Prolene Hernia System) repair.
-Gilbert mesh repair (patch and plug).
-Modified Rives preperitoneal mesh repair (Read-Rives).

Now, using laparoscope:
-Transabdominal preperitoneal laparoscopic mesh repair (TAPP repair).
-Totally Extraperitoneal Repair (TEP Repair).

#Surgery
Forwarded from Quick Notes
Synthetic mesh.

Criteria of an ideal mesh.
#Surgery
US Criteria of Acute cholecystitis:

-GB stone
-Biliary sludge "turbid bile"
-Thickened wall
-Strip of fluid" pericholecystitis"

#Surgery
Recognizing  acute cholecystitis  on  US:

-The presence of gallstones, possibly impacted in the neck of the  gallbladder or cystic duct)  (Fig.  21-5)
-Thickening  of the gallbladder  wall  (>3  mm) (see  Fig.  21-5,  A)
-Pericholecystic fluid (fluid around the  gallbladder) (see  Fig.  21-5,  B)
- A positive sonographic Murphy sign  (A positive Murphy sign in this case is pain  that is  elicited  by compression of  the gallbladder with the US probe).

•In  the  presence  of  gallstones  and  gallbladder wall  thickening, US  has  a  positive  predictive  value  for  acute cholecystitis  as high  as 94%.

#Surgery
Types of sutures.
Plain catgut:

-Nature, absorbable.
-From the submucosal collagen of the sheep's intestine.
-Time of absorption: one week. (absorbed by phagocytosis)
-Uses: Its use is limited now because of severe reactions
-Used for ligating superficial blood vessels and SC fatty tissues.
Chromic catgut:

-Nature, absorbable.
-Like plain catgut, but it is modified by chromium salt solution to make it less irritant and to increase time of absorption to 3 weeks.
-It may be used in the presence of infection and cancer cases.
Dexon (polyglycolic acid):

-Synthetic,absorbable.
-Multifilamentous with good tensile strength.
-Time of absorption: 4 months.
-Used is general surgery, gynecological, soft tissue approximation, including use in ophthalmic procedures.
Dexon (polyglycolic acid):

-Synthetic,absorbable.
-Multifilamentous with good tensile strength.
-Time of absorption: 4 months.
-Used is general surgery, gynecological, soft tissue approximation, including use in ophthalmic procedures.
PDS (Polydioxanone synthetic smooth suture):

-Synthetic, absorbable.
-It is monofilamentous,so it is useful in suturing infected or contaminated wounds.
-Time of absorption: 6 months.
-intended for use ingeneral soft tissue approximation, including paediatric CV tissue, microsurgery and ophthalmic surgery.
Vicryl (polyglactin):

-Synthetic, absorbable.
-It is multifilamentous.
-Time of absorption: after 4 months.
-Used now: for gastrointestinal anastmosis.
-Vessels ligation in all surgical specialies.
-General soft tissues approximation.
Monocryl polyglecapron 25:

-Synthetic, absorbable.
-Monofilament with high tensile strength.
-Time of absorption: 3-4 months.
Surgical silk:

-Natural, non-absorbable.
-It is multifilamentous.
-Rich in protein material so it causes marked tissue reaction.
-If infection occurs, we remove sutures to allow improvement.
-Used in major blood vessels ligation and tendon repair. It's black.
Nylon (Ethilon):

-Synthetic, non-absorbable.
-It is polyamide.
-Mono-or multifilamentous with good tensile strength.
-Elicit minimal tissue reaction.
-Skin closure and herniorrhaphy.
-Time to absorb: year
s.
Prolene (Polypropylene):

-Synthetic, non-absorbable.
- Monofilamentous with good tensile strength,it has difficult knotting.
-Indicated for use in general soft tissue approximating and/or ligation, including use in cardiovascular, ophthalmic and neurosurgical procedures.
Polytetrafluroethylene (PTFE):

-Synthetic,non-absorbable.
-Minimal tissue response with good handling.
How to read a suture package.
Remember:

-Aaron's "هارون" sign: is a referred pain felt in the epigastriumupon continuous firm pressure over McBurney's point. It is indicative of appendicitis.

-Aaron's sign is named for Charles Dettie Aaron, an American 
gastroenterologist.


#Surgery
Remember:

-The only bone in the body whole surface of it is atricular surface is talus bone.

#Surgery