BACKGROUND. Morbidities associated with the insertion of central venou
s catheters in severely thrombocytopenic cancer patients were analyzed
in this prospective observational study. One hundred fifteen consecut
ive thrombocytopenic patients requiring central venous access (interna
l jugular or subclavian vein cannulation by a modified Seldinger techn
ique) were evaluated. METHODS. One hundred fifteen catheters were inse
rted. For each patient, the following factors were documented: age; se
x; diagnosis; previous catheterization; prior neck, chest, breast, or
axillary surgery or radiation therapy; presence of other lines prior t
o venipuncture; site and indication for line insertion; complications;
PT and PTT; platelet counts; and hematocrit. RESULTS. Of the total nu
mber of catheters inserted, 63 (55%) were subclavian and 52 (45%) were
internal jugular. Successful cannulations with no complications (n =
91; 79% of the total) were achieved with 1.2 +/- 0.5 attempts. Twenty-
four major and minor complications (20%) occurred with an average of 1
.6 +/- 1 attempts (P = 0.003). The mean preprocedure platelet counts w
ere 14.8 +/- 4.5 x 10(9)/L for the subclavian group and 14.3 +/- 4.8 X
10(9)/L for the internal jugular group. With platelet transfusion, th
e mean postprocedure platelet counts for the subclavian and internal j
ugular groups were 23.9 +/- 12.8 x 10(9)/L and 24.6 +/- 15 x 10(9)/L,
respectively. In the subclavian group, seven patients (6%) experienced
minor complications. There were 17 minor complications (15%) and I pn
eumothorax in the internal jugular group. Patients experiencing more t
han one attempt at cannulation had more complications (P = 0.003). CON
CLUSIONS. With the appropriate precautions and platelet transfusions,
central venous catheters can be inserted safely with minimal complicat
ions into thrombocytopenic cancer patients. Fewer attempts are associa
ted with fewer complications. High risk procedures should be attempted
only by experienced personnel or under their direct and strict superv
ision. (C) 1996 American Cancer Society.