Is it a subtle appendicitis? How to make time your friend (part two)

Clinical Scenario

It’s about the end of  the night shift, in Observation Unit there’s George a 25 yo male presented the evening before with a mild periumbilical pain since 2 days than localized to the right lower quadrant. He was afebrile with stable vital signs, in the car, arriving to the ED, there was vomit, not diahrrea. He had a mild tenderness in RLQ. Labs evidenced WBC of 12.000 (cells/μL)  and CPR of 10 (mg/L). You assessed an intermediate probability of appendicitis, than the guy remained in observation. 

During the night an US of RLQ was performed, and appendix wasn’t visualized, vital signs were stable, there wasn’t vomit, a mild tenderness in RLQ was constant. 

In the morning George feels better, there is no vomit, no fever, the pain is reduced. Labs returned, WBC are increased  (15.000) and CPR is stable. 

Is your assessed probability of an appendicitis changed after an active observation?

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Is it a subtle appendicitis? How to make time your friend

Clinical Scenario

Mr. Smith is a 39 yo man with abdominal pain. He has been visited, few hours ago, by his primary care doctor who sent him to you for a surgeon consult. He refers abdominal pain, fever and nausea since the day before. The pain was previously in the midabdomen, than it migrated to the right lower quadrant (RLQ). 

Temperature is 38°C, he is tachicardic, he has a moderate pain in RLQ, there aren’t signs of peritonitis.  Appendix  Is not visualized at US examination.  

Laboratory evaluation reveals WBC count 12.000 (cells/microL)  and CPR 7 (mg/L) . 

Patient’s presentation is suggestive for appendicitis but not clearly diagnostic. Let’s see what the surgeon advices.

“He is not yet ready for the operating room” he says “it’s better to repeat a laboratory evaluation, please call me in four hours”. 

The patient is admitted to observation unit. 

How will the change of laboratory tests help you after four hours?  

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How have you come to the hospital?

Clinical Scenario

It’s just started your night shift, Sara is a young EP, she is going home after an hard day.  Hello - she says tired - could you help me? There is a guy with abdominal pain and nausea. I think it could be appendicitis, but there is not fever and not leukocytosis. 

Have you asked if he arrived by car? - You say

No, why? 


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Rectal Examination and Appendicitis

A 25 y/o man comes to the ED because of abdominal pain started 2 hours before, fever and vomit.

He has not history of disease, no history of surgery, no history of other ED admission for abdominal pain.

Clinical examination shows rigidity and diffused painfull abdomen.

You perform digital rectal examination were you evidence no pain in the Douglas space and normal stool, can you exclude appendicitis?.

Conclusion 

Digital rectal examination (DRE) is not necessary in patients with suspected acute appendicitis, it provides no additional information that is not available on the abdominal examination.

It is not useful in comparison with the discomfort and privacy problems that often accompany its use, it can be very unpleasant for the patient. 

There is also poor evidence regarding the clinical utility of the DRE in the diagnosis of undifferentiated abdominal pain.

Bibliography 

R. E. B. Andersson

Meta-analysis of the clinical and laboratory diagnosis of appendicitis

British Journal of Surgery 2004; 91: 28–37

J Quaas , M Lanigan, D Newman, J McOsker, R Babayev, C Mason

Utility of the digital rectal examination in the evaluation of undifferentiated abdominal pain

American Journal of Emergency Medicine (2009) 27, 1125–1129

S A Colucciello, T W Lukens, D L Morgan 

Assessing Abdominal Pain In Adults: A Rational, Cost-Effective, And Evidence-Based Strategy

Emergency Medicine Practice, Premier Issue Volume1,Number1, 1999

N Manimaran, RB Galland

Significance of routine digital rectal examination in adults presenting with abdominal pain

Ann R Coll Surg Engl 2004; 86: 292–295

Ilenia Spallino

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