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Gestational trophoblastic disease following complete hydatidiform mole in Mulago Hospital, Kampala, Uganda


Dan K. Kaye

Abstract

Objectives: To determine epidemiological characteristics and clinical presentation of complete hydatidiform mole (CHM) and complications associated with prophylactic chemotherapy with oral methotrexate.

Setting : Mulago hospital, Kampala.

Design : Prospective study

Methods : Ninety-four patients with clinically and histologically confirmed complete hydatidiform mole admitted between 1/9/1995 and 30/1/1998 were followed for periods ranging from 12 months to 30 months. Seventy-eight (83.0%) received a total of 187 courses of oral methotrexate (0.4 mg/kg daily in 3 divided doses) as prophylactic chemotherapy. The main outcome measures were pre- and post-evacuation serum hCG levels and complications associated with oral methotrexate use.

Results : The prevalence of CHM was 3.42 per 1,000 deliveries. The mean age of subjects was 29.6 + 8.5 years. Eighteen women (19.1%) were nulliparous and mean gravidity was 8.3. Many women presented with high-risk disease. Risk factors for persistent trophoblastic disease were prior molar pregnancy, age<19 or >35 years and features of high-risk molar pregnancy. Twenty-four of the seventy-eight patients (30.7%) developed complications, mainly mucositis and haematological toxicity (leucopenia, anaemia and thrombocytopenia), commonly after 3 or more courses.

Conclusion : CHM was common and many patients presented with high-risk disease. Oral methotrexate for prophylactic chemotherapy was tolerable and safe for the first 2 courses, but serious complications occur as the duration of treatment increases. Prophylaxis did not prevent development of (or death from) metastatic trophoblastic disease.

Recommendations : Patients with CHM should be monitored for the development of post-evacuation trophoblastic disease. Those on prophylactic chemotherapy require close monitoring for the toxic effects of the drugs.


African Health Sciences 2002;2(2):47-51

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eISSN: 1729-0503
print ISSN: 1680-6905