Gianturco stent placement in malignant caval obstruction: analysis of factors for predicting the outcome.
OBJECTIVE
To determine the factors that may be used to predict outcome of stent placement in patients with malignancies obstructing the superior or inferior vena cava.


METHODS
Gianturco stents were placed in 39 patients with malignant obstruction of the superior (n = 16) or inferior (n = 23) vena cava. Thirteen patients with obstruction of the superior vena cava received radiation therapy and/or chemotherapy at some time in their course of treatment. Computed tomographic (CT) scans were obtained in all patients. The authors analyzed treatment outcome with the location, length, and CT appearance of obstruction.


RESULTS
Venous congestive symptoms disappeared after stent placement in 35 patients and remained in four. Symptoms did not recur during 1-13-month follow-up in 32 of the 35 patients in whom the symptoms disappeared. Nonfatal complications were observed in nine patients. Results of multivariate analysis showed that the outcome of stent placement is best predicted by the appearance of obstructions on CT scans irrespective of the location and length of the lesions.


CONCLUSIONS
Good results can be expected from placement of Gianturco stents except when CT shows the obstruction to be totally enveloped by tumor.
Furui
S
S
Department of Radiology, National Defense Medical College, Saitama, Japan.
Sawada
S
S
Kuramoto
K
K
Inoue
Y
Y
Irie
T
T
Makita
K
K
Yamauchi
T
T
Tsuchiya
K
K
Kusano
S
S
D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008113:Liver Neoplasms / Q000150:complications; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications; D008875:Middle Aged; D016491:Peripheral Vascular Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D011237:Predictive Value of Tests; D011859:Radiography; D012044:Regression Analysis; D012186:Retroperitoneal Neoplasms / Q000150:complications; D015607:Stents; D013479:Superior Vena Cava Syndrome / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D013997:Time Factors; D016896:Treatment Outcome; D014682:Vena Cava, Inferior