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We retrospectively reviewed the records of patients who underwent redo carotid endarterectomies during a 5-year period. Patients were followed by duplex ultrasound to assess late patency of the carotid artery. Reoperations for recurrent carotid stenosis were performed in 46 of 973 patients who had carotid endarterectomies (5%). Indications for surgery were(More)
Cesium 5-cyano-1,2,3,4-tetrazolate, Cs[NCCNNNN] (Cs1), was prepared in 100% yield by a 3 + 2 cycloaddition reaction of CsN3 and (CN)2 in SO2. Cs1 forms monoclinic crystals (a = 8.297(2) A, b = 11.040(3) A, c = 6.983(2) A, beta = 120.31(2) degrees, space group C2/c, Z = 4, R1 = 0.048, wR2 = 0.120 for 1217 independent reflections). Cs1 is best described as a(More)
This study evaluates the use of ankle systolic Doppler indices for the detection of technical errors during reconstructive surgery. Measurements taken peroperatively, following declamping, are expressed as a ratio of brachial systolic pressure and compared with preoperative and postoperative readings. A study has been made of 377 limbs in 272 patients,(More)
A 46-year-old man with cirrhosis secondary to hepatitis C virus infection and alcohol underwent orthotopic liver transplantation, which required urgent re-grafting because of biliary sepsis from necrosis of the left liver lobe. Recovery was complicated by renal failure and nephrogenic systemic fibrosis (probably related to intravenous gadolinium exposure).(More)
The reaction of NC-CN with a 1:1 mixture of S(4)(MF(6))(2) and S(8)(MF(6))(2) (M = As, Sb) (stoichiometrically equivalent to four "S(3)MF(6)" units) results in the quantitative formation of S(3)NCCNS(3)(MF(6))(2) [7(MF(6))(2)], which is the thermodynamic sink in this reaction. The Sb(2)F(11)(-) salt 7(Sb(2)F(11))(2) is prepared by the addition of an excess(More)