·
Postoperative complications such as
primarily pancreatic fistula, haemorrhage, abscess, and delayed gastric
emptying still occur at a frequency of 30% to 60%, resulting in a mortality
rate of 1% to 5%[11].
·
For this reason and due to the lethality of the pancreatic
cancer despite surgical treatment, the patient should be informed about the therapeutic procedure and any
potential complications or disabilities to facilitate a conscious involvement
in the decision-making process.
·
In the case of patients of advanced age who require pancreatic
surgery, formal mental status testing can help determine
whether a patient can be considered capable of making this type of decision.
Dementia is an
extreme predictor of poor outcome, exhibiting surgical mortality rates that are
increased by 52%[12]. The decision to classify an elderly patient eligible for
surgery cannot exclude preoperative mental status.
Preoperative
risk assessment
A complete history, physical, laboratory examinations, and
an assessment of the surgical risks should be included in the preoperative
evaluation of an elective surgery.
Recently, a
variety of scoring systems has been developed, and the Physiologic and
Operative Severity Score for the Enumeration of Mortality and morbidity (POSSUM)
model by Copeland et al[14] was recognized as the most effective for general
surgery[15].
This model,
which uses scores relating to 12 physiological and 6
operative variables, was developed to postoperatively predict 30-d
mortality and morbidity.
The
application of the predictive POSSUM and P-POSSUM
(Portsmouth modification of POSSUM)[16] models to cases of pancreatic surgery
has generated conflicting results.
The
implementation of this scoring system in the routine practice has proven to be
difficult, and a recent review by Wang et al[17] has found POSSUM to overpredict postoperative mortality. Despite
these limitations, there is still a role for POSSUM as a useful tool in
pancreatic surgery. Individual POSSUM scores should not preclude pancreatic
resec- tion in clinical practice but might help surgeons modify expectations of
postoperative outcomes[18]. Due to the limitations of the POSSUM model, more trials
are needed to adequately evaluate this scoring system in predicting postoperative
mortality for pancreatic surgery.
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