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A Model for Encephalomyosynangiosis Treatment after Middle Cerebral Artery Occlusion-Induced Stroke in Mice

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Muscle enzyme elevation after elective neurosurgery.

D Poli¹, M Gemma, S Cozzi

¹Neurosurgical Anesthesia and Intensive Care Unit, Università Vita e Salute, S. Raffaele Hospital, Via Olgettina 60, 20132 Milan, Italy.

European Journal of Anaesthesiology

|January 24, 2007

Summary

Postoperative muscle enzyme elevation, including creatine kinase and myoglobin, can occur after intracranial neurosurgery. Longer surgery duration is identified as a key risk factor for these elevations.

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Area of Science:

Neurosurgery
Clinical Biochemistry
Muscle Physiology

Background:

Elevated serum creatine kinase (CK) and myoglobin levels are known post-surgical complications, particularly after procedures involving significant muscle manipulation.
While common in general surgery, these elevations, sometimes indicative of rhabdomyolysis, have not been well-described following intracranial neurosurgery.
This study investigates the incidence and potential risk factors of muscle enzyme elevation after craniotomy.

Purpose of the Study:

To prospectively assess the occurrence of elevated serum creatine kinase and myoglobin levels in patients undergoing craniotomy.
To identify potential clinical or surgical factors associated with postoperative muscle enzyme elevation after intracranial neurosurgery.

Main Methods:

A prospective study involving 30 patients (aged 22-69 years) undergoing craniotomy.
Serum samples were collected pre-operatively, at the end of anesthesia, and on postoperative days 1, 2, and 3 to measure CK, myoglobin, and other biochemical markers.
Logistic regression analysis was used to identify factors correlating with muscle damage, including surgery duration, patient demographics, and intraoperative physiological parameters.

Main Results:

Significant elevations in serum creatine kinase and myoglobin were observed on postoperative day 1 compared to baseline levels (CK: P < 0.001; Myoglobin: P = 0.002).
Logistic regression analysis identified the length of surgery as the sole significant factor correlating with peak creatine kinase (R²=0.7) and myoglobin (R²=0.41) concentrations.
No other patient demographic or intraoperative variable consistently correlated with enzyme elevation.

Conclusions:

Intracranial neurosurgery can lead to postoperative elevations in serum creatine kinase and myoglobin.
The duration of the surgical procedure is a significant risk factor for these muscle enzyme elevations.