Pregnancy and Cancer
Serbia
99 slide(s) – 00:36:24 – English – 2008-10-27
After viewing this presentation the participant will be able to discuss:
- General aspects of cancer in pregnancy
- Difficulties in diagnostics and treatment of cancer in pregnancy
- Risks of radiotherapy and chemotherapy in pregnancy
- Management of precancer and cancer of the cervix in pregnancy
- Ovarian tumors in pregnancy
- Breast cancer and pregnancy
The management of pregnant women with cancer is influenced by different factors, such as the stage of the cancer and its prognosis; the gestational age; possible adverse effects of treatment on the fetus; risk to the mother from the delay of therapy; risk for the fetus of premature delivery; and the potential need to terminate the pregnancy.
With the lack of an ideal way to manage cancer in pregnancy, different options are considered depending on the clinical situation. Waiting till the end of pregnancy to deliver the cancer treatment, for example, is more viable the lower the risk posed by the cancer, and the more advanced the pregnancy, says Prof. Kesic. In early pregnancy it is more likely to terminate the pregnancy and allow the normal treatment to proceed. A third option is to give the cancer treatment during the pregnancy while minimizing risk for the fetus.
The diagnosis of cancer is often delayed in pregnancy, because its presentation may be masked by physiological body changes of pregnancy. The diagnosis and staging are compromised, since some techniques would be unreliable in pregnancy, and some would be dangerous. Radiotherapy is contraindicated in pregnancy; however it is sometimes used above the diaphragm with shielding particularly in advanced pregnancy. Chemotherapeutic drugs, which act to inhibit cell division, pose a risk to the developing fetus. Prof. Kesic talks about the risks of surgery, radiotherapy and chemotherapy in the first, second and third trimesters.
Cervical cancer and ovarian tumors are the most common cancers seen in pregnancy. The incidence of cervical pre-cancer and invasive cancer in pregnant women is similar to that in the general population. Screening for invasive cervical cancer should be performed during the first antenatal examination, to improve the chances of detection. Prof. Kesic discusses the management of an abnormal cervical smear in pregnancy, indications for colposcopy, the use of conization, management after the histological finding in pregnancy; and the management of cervical cancer, ovarian tumors and breast cancer in pregnant women.
Treatment of cancer in pregnancy requires evidence-based medicine, a multidisciplinary approach, the art of communication with the patient, and a high dose of humanity, says Prof. Kesic. The optimal gold standards for cancer in pregnancy would be to try to benefit the mother’s life, to try to treat the curable malignant disease of pregnant women, to try to protect the fetus and newborn from harmful effects of cancer treatment, and to try to retain intact the mother’s reproductive system.
Copyright © 2009 E-MedHosting.com Inc.
Bohman JV: Manual of oncogynecology. Medicine, Leningrad, 1989.
Buekers TE, Lallas TA: Chemotherapy in pregnancy. Obs Gyn Clin North Am, 1998; 25:323-9
Doll DC, Ringenberg QS, Yarbro JW: Antineoplastic agents and pregnancy. Semin Oncol, 1989; 16:337
Fenig E, Mishaeli M, Kalish Y, Lishner M: Pregnancy and radiation. Cancer Treat Rev; 2001; 27:1-7
Gililland J, Wenstein L: The effects of cancer chemotherapeutics agents on the developing fetus. Obstet Gynecol Surv, 1983; 38:6
Hacker NF, Berek JS, Lagasse DL et al: Carcinoma of the cervix associated with pregnancy. Obstet Gynecol, 1982; 59: 735-746
International Commission on Radiological Protection. Pregnancy and medical irradiation. Ann ICRP, 2000; 30: 1-43
International Commission on Radiological Protection: Biological effects after prenatal irradiation (embryo and foetus). ICRP, 2003; 33 (1-2): 5-206
Koren G, Lishner M, Santiago S (eds): The Mother risk Guide to Cancer in Pregnancy and Lactation. The hospital for Sick Children, Toronto, Ontario, Canada, 2005.
Mazze RI, Kallen B: Reproductive outcome after anesthesia and operation during pregnancy: a registry study of 5405 cases. Am J Obst Gynecol, 1989; 161:1178
Pavlidis NA: Coexistence of pregnancy and malignancy. The Oncologist, 2002; 7: 279-87
Pentheroudrakis G, Pavlidis N: Cancer and Pregnancy: Poena magna, not anymore. Eur J Cancer, 2006; 42: 126-140
Querelu D, Cappaleare P, Crepin G, Demaille A: Cancer et grossesse. Masson, Paris, 1978.
Sheperd J: Cancer complicating pregnancy. In: Clinical Gynaecological Oncology,
Sheperd J and Monaghan J (eds). Blackwell Scientific Publications, Oxford, 1990.
Sorosky JI, Squatrito R, Ndubisi BU, Anderson B, Podcazski ES, Mayr N, Buller RE: Stage I squamous cell carcinoma in pregnancy : Planned delay in therapy awaiting fetal maturity. Gynecol Oncol, 1995; 59 : 207-210.
Sood AK, Sorosky JI, Mayr N i sar: Cervical cancer diagnosed shortly after pregnancy: prognstic variables and delivery routes. Obstet Gynecol, 2000; 95 (6 Pt 1): 832-8
Ueda M, Ueki M: Ovarian tumors associated with pregnancy. Int J Gynaecol Obstet, 1996; 55: 59
Wagstaff A. Cancer in pregnancy: the cruelest dilemma. Cancer World, 2005; No 4; 14-23
Zemlickis D, Lishner M, Gegendorfer P i sar: Fetal outcome after in utero exposure to cancer chemotherapy. Arch Intern Med, 1992; 152: 573
|
|