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 Release 22.0, Sept. 2008
 
Chapter : ch31. Anesthesiology Section : Preoperative Patient Classification and Preparation
  Categories of Buth et al Used to Determine If a Patient Is Unfit for General Anesthesia and/or Major Surgery

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Overview :

Buth et al listed 7 categories used when determining if a patient may be unfit for general anesthesia and/or major surgery. This can help identify patients who may benefit from an alternative therapy or who should be informed of the risk prior to any operation. The authors are from the EUROSTAR Data registry and involved multiple hospitals in Europe.

 

NOTE: The categories were collected in patients undergoing abdominal aortic aneurysm repair. The same categories can be used for other conditions.

 

Categories:

(1) severe cardiovascular disease (severe ischemic heart disease, severe cerebrovascular disease, status post heart transplant, other)

(2) severe pulmonary disease

(3) conditions with significant combined cardiopulmonary impairment

(4) cancer

(5) local anatomic factors (see below)

(6) disorders of other organs or systems

(6a) rheumatologic (rheumatoid arthritis, vasculitis, other

(6b) hematologic disorders

(6c) coagulation disorders (bleeding or hypercoagulability)

(6d) renal (renal failure, hemo or peritoneal dialysis)

(6e) liver disease

(6f) neurologic disorders (Parkinson's disease, paraplegia, other)

(6g) psychiatric disease

(6h) muscular disorders (myasthenia, muscular dystrophy)

(6i) endocrine disorders (severe diabetes, thyroid, adrenal, other)

(7) poor overall physical condition (ASA class 4 or 5, very young or very advanced age, severe comorbid conditions)

 

Local conditions that may affect surgery:

(1) history of previous operations at site with multiple adhesions and/or scarring

(2) diffuse fibrosis at the site from other causes

(3) concurrent infection at site (osteomyelitis, other)

(4) concurrent inflammatory conditions (pancreatitis, other)

(5) severe obesity or fat accumulation

(6) transplanted organ in operative field

(7) history of radiation therapy

(8) severe vascular disease

 

Some conditions will result in permanent deferral while other may be temporary.

 

NOTE: Something else to include would be a history of complications following previous procedures and/or general anesthesia that are likely to be recurrent.

 

  References:

Buth J, van Marrewijk CJ, et al. Outcome of endovascular abdominal aortic aneurysm repair in patients with conditions considered unfit for an open procedure: A report on the EUROSTAR experience. J Vasc Surg. 2002; 35: 211-221 (Table 1).

Rutherford R, Flanigan D, et al. Suggested standards for reports dealing with lower limb ischemia. J Vasc Surg. 1986; 4: 80-94.

 

 

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