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Sanjay Gupta, Yashpal Bundela, Vimal Kumar, Vikas Gupta, Sanjeev Dua and Anil Kumar Singh

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Vaishali S. Suri, Medha Tatke, Sushil Kumar and Vikas Gupta

✓ The authors report the case of a patient with amyloidoma of the thoracic spine. A 34-year-old man presented with a 2-month history of upper-back pain, bilateral lower-extremity weakness, and numbness below the nipple.

A computerized tomography study revealed an extradural mass with destruction of the T-2 lamina and pedicle. Intraoperatively, there was a pinkish, partially suctionable mass infiltrating the muscle plane and causing destruction of the T-2 lamina. Histological examination showed typical amyloid masses that demonstrated apple-green double refraction on examination of the Congo red—stained section under polarized light.

Amyloidomas are rare benign lesions that, unlike other forms of amyloidosis, have an excellent prognosis. A cure is possible with complete resection of the mass.

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Jerry Cheriyan, Thomas Cheriyan, Anterpreet Dua, Jeffrey A. Goldstein, Thomas J. Errico and Vikas Kumar

OBJECTIVE

Intraoperative cell salvage systems, or cell savers, are widely used for the management of blood loss in patients undergoing spine surgery. However, recent studies report conflicting evidence of their efficacy. The purpose of the meta-analysis was to investigate the efficacy of cell savers in reducing blood transfusion requirements in patients undergoing spine surgery.

METHODS

Both retrospective and prospective studies that investigated the efficacy of cell savers in reducing transfusion requirements in spine surgery patients when compared with control patients were identified from MEDLINE, Embase, Cochrane Collaboration Library, Google Scholar, and Scopus databases. Outcome data extracted included number of patients receiving allogenic transfusions (transfusion rate); units of allogenic transfusions; postoperative hemoglobin; costs; operative time; and complications. RevMan 5 software was used to perform statistical analyses. A random-effects model was used to calculate pooled odds ratios (with 95% CIs) and weighted mean differences (WMDs [95% CI]) for dichotomous and continuous variables, respectively.

RESULTS

Eighteen studies with 2815 patients in total were included in the meta-analysis. During spine surgery, the use of intraoperative cell salvage did not reduce the intraoperative (OR 0.66 [95% CI 0.30, 1.41]), postoperative (OR −0.57 [95% CI 0.20, 1.59]), or total transfusion (OR 0.92 [95% CI 0.43, 1.98]) rate. There was a reduction in the number of allogenic units transfused intraoperatively by a mean of 0.81 (95% CI −1.15, −0.48). However, there were no differences in the number of units transfused postoperatively (WMD −0.02 [95% CI −0.41, 0.38]) or the total units transfused (WMD 0.08 [95% CI −1.06, 1.22]). There were also no differences in operative time (WMD 19.36 [95% CI −2.43, 42.15]) or complications reported (OR 0.79 [95% CI 0.46, 1.37]) between groups. A difference in postoperative hemoglobin (WMD 0.54 [95% CI 0.11, 0.98]) between both groups was observed.

CONCLUSIONS

Cell saver is efficacious at reducing intraoperative allogenic units transfused. There is no difference in transfusion rates, postoperative units transfused, and the total number of units transfused. Further cost analysis studies are necessary to evaluate the cost-effectiveness of this method of blood conservation.

■ CLASSIFICATION OF EVIDENCE Type of question: therapeutic; study design: meta-analysis; strength of recommendation: low.

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Ashish Goyal, Anil K. Singh, Daljit Singh, Vikas Gupta, Medha Tatke, Sanjiv Sinha and Sushil Kumar

✓ The authors present an unusual case of intramedullary arachnoid cyst diagnosed in a patient after the lesion was resected. A wide decompressive surgery was performed and the lesion removed. Histopathological findings were consistent with the diagnosis of arachnoid cyst. Postoperatively the patient exhibited marked improvement in neurological status. To the best of the authors' knowledge, there is no case report of intramedullary arachnoid cyst reported in the literature. With the advent of newer neuroimaging modalities such as magnetic resonance imaging the number of cases of intramedullary arachnoid cysts encountered in the future may increase.