Doctors Guide

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1. BERLIN Criteria : ARDS.
(i)Mild ARDS - PaO2/ FiO2 ratio ≤300 and >200
(ii)Moderate ARDS- PaO2/FiO2 ratio 100- 200
(iii)Severe ARDS- PaO2/FiO2 ratio <100.
p.s: In this new criteria, the minimum level of PEEP required for diagnosing ARDS is 5cmH2O.

2. AMSTERDAM Criteria: HNPCC.
(i) the family includes three or more relatives with an HNPCC-associated cancer
(ii) one affected patient is a first-degree relative of the other two
(iii) two or more successive generations are affected
(iv) cancer in one or more affected relatives is diagnosed before the age of 50 years
(v) familial adenomatous polyposis is excluded in any cases of colorectal cancer, and (vi) tumors are verified by pathological examination.

3. LOS ANGELES Classification- GERD.
Grade A: One or more mucosal breaks < 5 mm in maximal length.
Grade B: One or more mucosal breaks > 5mm, but without continuity across mucosal folds.
Grade C: Mucosal breaks continuous between ≥ 2 mucosal folds, but involving less than 75% of the esophageal circumference.
Grade D : Mucosal breaks involving more than 75% of esophageal circumference.

4. MIAMI Criteria
>50% PTH decrease from either the highest pre-incision or pre-excision hormone level in a peripheral blood sample obtained 10 minutes after complete excision of all Parathyroid.

5. CHICAGO Classification(Ver.4)- Achalasia Cardia.
Type I: absence of esophageal pressurization;
Type II: panesophageal pressurization;
Type III: premature contractions (distal latency < 4.5 seconds)

6. Rome IV Criteria- Irritable Bowel Syndrome.
Recurrent abdominal pain on average at least 1 day per week during the previous 3 months that is associated with TWO or more of the following :
a.Related to defecation (may be increased or unchanged by defecation)
b. Change in Stool Frequency
c. Change in Stool Form

7. Bristol Stool Scale/Meyers Scale.
Stool that is hard and difficult to pass (Types 1 and 2) indicates constipation.
Stools that are well-formed and easy to pass (Types 3 and 4) are considered "ideal."
Stool that contains excess liquid or is entirely liquid indicates diarrhea (Types 5, 6, and 7).

8. MILWAUKEE Classification-Sphincter of Oddi Dysfunction.
Type I-included patients with biliary-type abdominal pain, with all of altered liver enzymes on blood testing, dilated biliary ducts on ultrasound or ERCP, and delayed bile clearance on HIDA scan.
Type II-included patients with biliary-type abdominal pain associated with at least one of the following: altered liver enzymes on blood testing, dilated biliary ducts on imaging tests, and delayed bile clearance on HIDA scan.
Type III- Biliary-type pain in the absence of any sign of biliary or pancreatic alteration.

9. MILAN Criteria - Liver Transplantation.
a.1 lesion greater than or equal to 2 cm and less than or equal to 5 cm,
b.upto 3 lesions, each greater than or equal to 1 cm and less than or equal to 3 cm).

10. TOKYO CLASSIFICATION- Acute Cholecystitis.
Mild (Grade I)- acute cholecystitis in a patient with no organ dysfunction and limited disease in the gallbladder, making cholecystectomy a low-risk procedure.
Moderate (Grade II)- associated with no organ dysfunction but there is extensive disease in the gallbladder, resulting in difficulty in safely performing a cholecystectomy.
Severe (Grade III)-acute cholecystitis with organ dysfunction.

11. REVISED ATLANTA CLASSIFICATION
Fluid collections associated with interstitial oedematous pancreatitis (i.e. minimal or no necrosis)
a.Acute Peripancreatic Fluid Collections (APFC): in the first 4 weeks: non-encapsulated peripancreatic fluid collections
b.Pseudocysts: develop after 4 weeks.

Encapsulated peripancreatic or remote fluid collections
fluid collections associated with necrotising pancreatitis
a.Acute Necrotic Collections (ANCs): in the first 4 weeks; non-encapsulated heterogeneous non-liquefied material
b. Walled-off (Pancreatic) Necrosis (WON or WOPN): develop after 4 weeks; encapsulated heterogeneous non-liquefied material.

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