[Prospective evaluation of clinical and Doppler ultrasound characteristics of cancer patients with suspicion of deep venous thrombosis]. / Aspectos clínicos e ultra-sonográficos de pacientes com câncer e suspeita de trombose venosa profunda.

PURPOSE: To evaluate Doppler Ultrasound (DUS) in oncology patients suspected of having Deep Venous Thrombosis (DVT) and correlate findings with their clinical characteristics and outcome. METHODS: A study was made with 96 consecutive oncology patients submitted to DUS suspected to have DVT between May 2001 and April 2002. The same radiologist examined 73 women and 23 men, with a median age of 58 years, using DUS equipment, with high frequency linear and convex probes (logic500--GE and HDI5000--Philips). RESULTS: In 42 (43.8%) patients the DUS was considered normal, in 33 (34.4%) DVT was diagnosed and 21 of them had superficial or previous deep venous thrombosis or non conclusive studies. Considering clinical evaluation (and death by PE as caused by DVT) as the gold standard, DUS sensitivity was of 95.9%. There was a statistically significant correlation between DVT and tumor stage at the time of initial diagnosis and patient's survival rate (p<0.05). There was no correlation between DVT and gender, age, type of malignancy, stage of disease at the time of DVT diagnosis and different treatment regimens. CONCLUSION: It was concluded that in cancer patients DUS has a high sensitivity for diagnosis of DVT and that DVT diagnosis in these patients correlates with a shorter overall survival. Since there are no reliable clinical predictors to identify cancer patients with DVT, DUS should be performed whenever DVT is suspected.

Aspectos clínicos e ultra-sonográficos de pacientes com câncer e suspeita de trombose venosa profunda / Prospective evaluation of clinical and Doppler ultrasound characteristics of cancer patients with suspicion of deep venous thrombosis

OBJETIVO: Avaliar as características clínicas e evolução dos pacientes com câncer e suspeita de TVP submetidos à USD e a sua sensibilidade. MÉTODOS: Estudamos 96 pacientes. A mediana da idade foi de 58 anos, sendo que 73 eram do sexo feminino. A USD foi realizada pelo mesmo radiologista em equipamentos digitais (logiq-500-GE e HDI5000-Phillips), com transdutores lineares de alta freqüência e, quando indicado, convexo de 3,5 mHz, utilizando-se modo B e Doppler. RESULTADOS: Sessenta e sete pacientes (69,8 por cento) evoluíram a óbito, sendo que apenas quatro (4,1 por cento) tiveram exame negativo para TVP e a causa do óbito relacionado a TEP. Quarenta e dois pacientes (43,8 por cento) não apresentavam TVP à USD, enquanto 33 (34,4 por cento) apresentaram-na, sendo que os demais (21,8 por cento) tinham TVP antiga ou trombose superficial. Considerando-se a evolução como padrão ouro e qualquer diagnóstico de TEP desses pacientes causado por TVP, a sensibilidade da USD foi de 95,9 por cento. Encontramos correlação estatisticamente significativa entre a presença de TVP e o estadiamento da neoplasia ao diagnóstico (p<0,05) e com a sobrevida dos pacientes (p<0,05). Não encontramos correlações significativas com as demais variáveis estudadas. CONCLUSÃO: A USD tem alta sensibilidade para diagnóstico de TVP em pacientes com câncer. A presença de TVP nessa população de pacientes se correlaciona com uma menor sobrevida e não há características clínicas que nos permitam isolar um subgrupo de pacientes com maior chance de TVP por USD.

PURPOSE: To evaluate Doppler Ultrasound (DUS) in oncology patients suspected of having Deep Venous Thrombosis (DVT) and correlate findings with their clinical characteristics and outcome. METHODS: A study was made with 96 consecutive oncology patients submitted to DUS suspected to have DVT between May 2001 and April 2002. The same radiologist examined 73 women and 23 men, with a median age of 58 years, using DUS equipment, with high frequency linear and convex probes (logic500 - GE and HDI5000 - Philips). RESULTS: In 42 (43.8 percent) patients the DUS was considered normal, in 33 (34.4 percent) DVT was diagnosed and 21 of them had superficial or previous deep venous thrombosis or non conclusive studies. Considering clinical evaluation (and death by PE as caused by DVT) as the gold standard, DUS sensitivity was of 95.9 percent. There was a statistically significant correlation between DVT and tumor stage at the time of initial diagnosis and patient's survival rate (p<0.05). There was no correlation between DVT and gender, age, type of malignancy, stage of disease at the time of DVT diagnosis and different treatment regimens. CONCLUSION: It was concluded that in cancer patients DUS has a high sensitivity for diagnosis of DVT and that DVT diagnosis in these patients correlates with a shorter overall survival. Since there are no reliable clinical predictors to identify cancer patients with DVT, DUS should be performed whenever DVT is suspected.