Displaying publications 1 - 20 of 66 in total

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  1. Sivanesaratnam V
    J Obstet Gynaecol Res, 2001 Feb;27(1):1-15.
    PMID: 11330724
    Fertility and gynaecological malignancies have an important relationship. A clear inverse relationship exists between family size and the incidence of ovarian and endometrial cancer. Current methods of fertility control have an influence on subsequent development of various gynaecological malignancies. A slightly increased risk of breast cancer has been reported in current users and those who had used hormonal contraceptives (OCs) within 10 years; this risk declined with time and disappeared after 10 years. Women who started OC before age 20 had a higher relative risk; the disease did not spread beyond the breast in the majority. Most studies found OC to reduce the risk of ovarian and endometrial cancer. The relative risks of squamous cell carcinoma and adenomatous carcinoma of the cervix have been reported to be 1.3 and 1.5, respectively in ever-users of OCs; however, the aetiology of cervical cancer is multifactoral. Several reports suggest the beneficial effect of tubal ligation and breast feeding in reducing the risk of ovarian cancer. Therapy of gynaecological malignancies may have an influence on subsequent fertility. Amenorrhoea developing after treatment of hydatidiform mole may be due to choriocarcinoma, recurrent mole or a normal pregnancy. Choriocarcinoma can also develop after a partial mole. The risk of fetal teratogenicity from chemotherapy is present only if conception occurs during or immediately following the treatment cycles. Fertility is not impaired following chemotherapy. Successful pregnancies have occurred in women who have had widespread GTD including cerebral metastases. In the young patient with gynaecological malignancy preservation of fertility is possible. Fertility-sparing surgery may be safe in early ovarian epithelial cancers and even in advanced germ cell tumours. Recently, the fertility-sparing surgery of radical trachelectomy and pelvic lymphadenectomy has been carried out for early invasive cervical cancer in young women. Gynaecological cancer occurring in pregnancy is uncommon; it presents the clinician with a difficult situation to manage. In most instances the cancer is treated as though the patient is not pregnant; the timing and mode of delivery needs individualization. The overall prognosis for breast cancer complicating pregnancy is poor. Survival in cervical cancers diagnosed antepartum is similar to the non-pregnant patient. Ovarian cancer in pregnancy has a good prognosis because of the early stage at diagnosis.
  2. Sivanesaratnam V
    PMID: 10789262
    An acute abdomen in pregnancy can be caused by pregnancy itself, be predisposed to by pregnancy or be the result of a purely incidental cause. These various conditions are discussed. The obstetrician often has a difficult task in diagnosing and managing the acute abdomen in pregnancy. The clinical evaluation is generally confounded by the various anatomical and physiological changes occurring in pregnancy itself. Clinical examination is further hampered by the gravid uterus. The general reluctance to use conventional X-rays because of the pregnancy should be set aside when faced with the seriously ill mother. A reluctance to operate during pregnancy adds unnecessary delay, which increases morbidity for both mother and fetus. Such mistakes should be avoided as prompt diagnosis and appropriate therapy are crucial. A general approach to acute abdominal conditions in pregnancy is to manage these problems regardless of the pregnancy.
  3. Sivanesaratnam V
    Ann Acad Med Singap, 1998 Sep;27(5):622-6.
    PMID: 9919328
    Although the primary operative mortality following radical hysterectomy for stage IB and early stage IIA cervical carcinoma is less than 1%, survival is poor in those patients with histological evidence of "risk" features--lymph node metastases, lymphatic vascular tumour permeation and clinically undetected parametrial metastases. In the 7-year period 1983 to 1989, 239 patients with stage IB and early IIA disease had radical hysterectomy and pelvic lymphadenectomy. One hundred and eight patients (45.2%) had various poor prognostic histological features and received adjuvant chemotherapy--70 had cisplatin, vinblastine, bleomycin (PVB), 16 had mitomycin C (MMC) and 22 others received mitomycin C + 5-fluorouracil (5-FU). Although not randomised, the risk factors present in each group were identical. These patients have now been followed up for periods ranging from 8 to 14 years. All recurrences, except one, occurred within 23 months of surgery; in the remaining this occurred 8 years later. This suggests that very close long-term follow-up is needed. Recurrences were markedly higher in the group who refused adjuvant chemotherapy (31.6%). The 10-year survival in patients without risk factors was 97.2%. In those patients with risk factors refusing adjuvant therapy it was 73.7%. The adjuvant chemotherapy group had a better survival of 86.1% (P = 0.001). The 10-year survivals in patients with positive nodes were similar--66.7% in the MMC group and 71.4% in the PVB group. The 10-year survival in patients with squamous cell carcinoma was significantly better (90.3%) in the mitomycin C (and MMC + 5-FU) group compared to the PVB group (80.1%) (P = 0.005). The 10-year survival in patients with adenocarcinoma and adenosquamous carcinoma was significantly better (96.3%) in the PVB group compared to those receiving MMC (and MMC + 5-FU) (57.1%) (P = 0.01). It would, thus, appear that the adjuvant chemotherapy of choice for patients with squamous cell carcinoma would be MMC (and MMC + 5-FU) and for those with adenocarcinoma, the PVB regime.
  4. Sivanesaratnam V
    Int J Gynaecol Obstet, 1998 Apr;60 Suppl 1:S105-9.
    PMID: 9833622 DOI: 10.1016/S0020-7292(98)80012-X
    Gestational trophoblastic disease is a common gynaecological problem in Malaysia. The incidence of molar pregnancy is 2.8 per 1000 deliveries, being more common amongst the Chinese. The preferred method of evacuation is suction curettage; complete evacuation of the uterus was not achieved at the first attempt in 25 per cent of cases. Partial moles in our centre comprised 30 per cent of all moles. This is potentially malignant and needs follow-up for a complete mole. In the management of an invasive mole, chemotherapy should not be withheld in the presence of metastases and failure of regression of hCG. The role of prophylactic hysterectomy and prophylactic chemotherapy in the management of molar pregnancy is discussed "Selective preventive chemotherapy" in patients at "risk" appears appropriate. Chemotherapy remains the main modality of treatment for gestational trophoblastic tumours (GTT). We categorised our patients into low, medium and high-risk groups; survivals were 100, 98, and 61.7 percent respectively. These patients when categorised according to FIGO staging had survivals of 100, 80, 78.6 and 68.2 per cent respectively for stages 1, 2, 3 and 4 respectively. The reasons for the poor survival in the 'high-risk' group are discussed. Colour doppler blood flow studies are now being carried out; its role needs further evaluation. Surgery and radiotherapy have only a limited role in the management of these cases.
  5. Sivanesaratnam V
    Ann Acad Med Singap, 1989 Jan;18(1):75-9.
    PMID: 2712524
    One hundred years ago cervical cancer was rapidly fatal, regardless of therapy rendered. Today with cytological screening, early diagnosis is possible and ablative therapy can be instituted in appropriate cases. The advent of coloscopy has helped reduce unnecessary cone biopsy for diagnosis. However, the same cannot be said of the use of cytology for screening endometrial cancer, and often endometrial tissue biopsy is necessary. Ovarian cancer is notoriously silent in its early stages and symptoms if present are generally non-specific. To date there is no other useful and reliable method for its early detection than routine pelvic examination. An annual cytological screening test for cervical cancer will give an opportunity for examination of the breasts, abdomen and pelvis. Screening techniques for female genital tract malignancies are discussed.
  6. Sivanesaratnam V
    Best Pract Res Clin Obstet Gynaecol, 2003 Dec;17(6):925-42.
    PMID: 14614890 DOI: 10.1016/S1521-6934(03)00097-X
    In Malaysia, the incidence of molar pregnancy and gestational trophoblastic neoplasia is 2.8 and 1.59 per 1000 deliveries, respectively; the disease is more common among the Chinese compared to the Malays and Indians. While uterine suction is the preferred method of uterine evacuation of hydatidiform mole, complete evacuation was not achieved at the first attempt in 25% of cases. Partial moles comprise 30% of all moles; these need follow up similar to that for complete moles as they are potentially malignant. In the management of invasive moles, chemotherapy should not be withheld in the presence of metastases or failure of regression of hCG. Placental site tumours are rare. Prophylactic hysterectomy and prophylactic chemotherapy are not recommended. However, in those patients with unsatisfactory hCG regression curves indicating 'at risk' in developing gestational trophoblastic neoplasia (GTN), 'selective preventive chemotherapy' appears appropriate. Chemotherapy remains the main modality of treatment for GTN. As tumour bulk and location of disease are important determinants in outcome, we categorized our patients into low, medium- and high-risk groups with survivals of 100, 98 and 61.7% respectively. Surgery and radiotherapy have a limited role.
  7. Sivanesaratnam V
    Med J Malaysia, 1972 Jun;26(4):285-287.
    PMID: 35158508
    No abstract available.
  8. Sivanesaratnam V
    Curr Opin Obstet Gynecol, 2001 Apr;13(2):121-5.
    PMID: 11315864
    A malignancy discovered in pregnancy is often difficult to manage; the optimal maternal therapy has to be balanced with the fetal well-being. Generally, the cancer is managed as though the patient is not pregnant. For the various site-specific cancers, surgery is the main modality of treatment; this should be individualized. Chemotherapeutic agents are highly teratogenic in the first trimester, with some adverse effects when used after 12 weeks' gestation. The overall survival rate for pregnancy-associated breast cancer is poor; the reasons for this are discussed. For cervical cancer, delivery by caesarean section appears to be the method of choice, with significantly better survival rates compared with those who deliver vaginally. Other gynaecological and non-gynaecological malignancies are discussed.
  9. Sivanesaratnam V
    J Obstet Gynaecol Res, 2009 Jun;35(3):393-404.
    PMID: 19527374 DOI: 10.1111/j.1447-0756.2009.01049.x
    Ovarian cancer is today the most lethal female cancer with an overall survival of only 49.9%. The currently available screening modalities are disappointing in detecting highly curable early stage ovarian cancer. Natural history of ovarian cancer is unknown; it appears it can develop quickly from normal looking ovaries. Timely referral of women with non-specific symptoms (such as abdominal bloating, pelvic pain) for an ultrasound scan or blood CA125 assessments may help in the early diagnosis. Patients with Stage IA or IB disease with grade 1 tumors have a cure rate of >90%; this is likely to be compromised by laparoscopic surgery. In selected patients fertility preservation with good obstetric outcome is possible. However, the relapse rate in 'high risk' early stage ovarian cancers is 40-45%; adjuvant chemotherapy is needed. Only 20-25% of those with stage III and IV disease are cured. Despite a high primary response (70%) majority (70-75%) will relapse and all are likely to succumb. Optimal debulking surgery followed by adjuvant chemotherapy are needed for stages III and IV disease; the outcome is superior if managed by gynecologic oncologists. Where cost of drugs is an important consideration, an alternative is carboplatin (an affordable and equally effective drug). The role of vaccines needs further study. When relapses occur palliation will be the aim in most instances. Oral contraceptives, breast feeding, tubal sterilization and hysterectomy also have a protective effect. Risk-reducing salpingo-oopherectomy has been suggested in women with BRCA mutations.
  10. Raman S, Sivanesaratnam V
    Med J Malaysia, 1982 Mar;37(1):76-7.
    PMID: 6889674
    A case of perforation of the uterus by the Multiload CU250 Device is described. To date no perforation of the uterus by this device has been reported. The device was successfully removed under laparoscopic control.
  11. Sivanesaratnam V, Jayalakshmi P
    Cancer, 1989 Aug 15;64(4):798-800.
    PMID: 2501019
    Patients undergoing radical surgical treatment for Stage IB and IIA cervical carcinoma are at high risk of developing local recurrence and/or distant metastases when one or more of the following factors are present: presence of metastatic pelvic lymph nodes, a large primary growth, full-thickness tumor invasion of the cervix, clinically undetected parametrial extension, and lymphatic/vascular channel permeation in the cervix by tumor cells. Carcinoma of the cervix appears to be behaving like a systemic disease. Therefore, systemic measures should be considered in its therapy. The authors report the initial experience with the use of mitomycin C as a single agent adjuvant in 16 patients with Stage IB carcinoma of the cervix who had undergone Wertheim radical hysterectomy and were thought to be in this high-risk group. Fourteen of the patients are alive and free of disease after durations of follow-up ranging from 16 to 38 months, the disease-free survival at a median follow-up of 29 months being 87.5%. One patient required discontinuation of adjuvant chemotherapy because of severe marrow toxicity; however, in view of the presence of a multiple risk factors, pelvic irradiation was given instead. She died 13 months later from disseminated disease. A second patient died 6 months later from congestive cardiac failure.
  12. Sivanesaratnam V, Pathmanathan R
    Asia Oceania J Obstet Gynaecol, 1990 Sep;16(3):207-10.
    PMID: 2088243
    A rare case of squamous cell carcinoma diagnosed in early pregnancy in a 28-year-old woman is described. At the time of radical surgery, which was carried out in the puerperium, the growth had already advanced to Stage IV disease. The rapid growth of the tumor seen in this patient suggests that although treatment needs to be individualised, the definitive radical surgery should not be delayed.
  13. Kulenthran A, Sivanesaratnam V
    Int J Gynaecol Obstet, 1988 Oct;27(2):289-91.
    PMID: 2903099
    Three sisters who developed recurrent uterine myomata from a very young age are presented. Despite repeated attempts at myomectomy, all three cases had hysterectomies ultimately. Complications encountered during surgery were severe hemorrhage, inadvertent injury to bladder and bowel in two patients and a rare complication of colonic-uteric-cutaneous fistula occurring post-operatively in one patient. Histology of the final hysterectomy specimens in two cases showed low grade leiomyosarcoma and cellular myoma, respectively.
  14. Rusinahayati, M., Sivanesaratnam, V., Jayalashmi, Noraihan, M. N.
    MyJurnal
    Objective: The purpose of this study was to evaluate the clinical behaviour, pathological findings, survival and prognostic factors in young women in comparison to menopausal women with epithelial ovarian malignancy. Methods: A retrospective analysis of 141 patients (67 for age below 40 years and 74 menopausal) treated between 1980 and 2000 was conducted. Results: Irrespective of the stage, the most common clinical presentation was abdominal distension in both young (78%) and menopausal women (66%). In young women, 52% presented at an early stage of the disease and in menopausal women this was seen in 22% (p-value
  15. Sivanesaratnam V, Sen DK, Jayalakshmi P, Ong G
    Int. J. Gynecol. Cancer, 1993 Jul;3(4):231-238.
    PMID: 11578351
    During a 14-year period, 397 radical hysterectomies and pelvic lymphadenectomies were performed for early invasive carcinoma of the cervix. Twenty-one patients were in stage IA2 with lymphatic/vascular channel permeation (5.2%), 340 in stage IB (85.6%) and 34 in early stage 2A disease (8.5%). Eighteen patients (4.5%) were pregnant. Adenocarcinoma comprised 26.9% of cases. The mean operative time was 4.14 h; the intraoperative blood loss was less than 1.51 in 77.3% patients. There was no operative mortality; one patient died 3 weeks after surgery from clostridium difficile enterocilitis. Eleven patients (2.7%) developed venous thrombosis; severe lymphedema occurred in four (1%). The incidence of uretero-vaginal fistula was 0.2% and that of vesico-vaginal fistula 0.5%. Ovarian metastases were noted in 4.3% of cases with adenocarcinoma. Sixty-six patients had positive nodes (16.6%). Five-year survival in patients with more than 2 positive nodes was 68%. The use of adjuvant chemotherapy in patients with 'high risk' factors resulted in survival rates approaching those without risk factors. Neo-adjuvant chemotherapy was used in 10 patients with large bulky tumors; the results were favorable. Recurrences occurred in 47 patients (11.8%); 36 patients have died (9.1%). Age did not appear to influence survival. The overall 5-year survival was 92.2%.
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