Introduction: Ovarian cancer continues to present significant therapeutic challenges in sub-Saharan Africa, where late diagnosis and limited resources often compromise outcomes. This study examines the management and survival outcomes of ovarian cancer patients at a major referral center in Cameroon. Methods: We conducted a retrospective cohort analysis of 72 ovarian cancer patients treated between 2015 and 2024 at the Yaoundé Gynaeco-Obstetric and Pediatric Hospital. Data encompassing demographic characteristics, clinical presentation, treatment modalities, and survival outcomes were meticulously extracted from medical records. Survival analysis was performed using Kaplan-Meier curves and Cox regression models to identify prognostic factors. Results: The majority of patients (40.3%) were aged 40 - 59 years, with a mean age of 48.7 years. Most women (56.9%) identified as housewives. Alarmingly, 73.6% presented with advanced-stage disease (FIGO stages III/IV). Epithelial ovarian cancer predominated (86.1%), with high-grade serous carcinoma being the most frequent. Primary debulking surgery followed by adjuvant chemotherapy was the most common treatment approach (62.5%), though optimal cytoreduction was achieved in only 46.9% of cases. The median overall survival was 29 months, with 5-year survival reaching 25%. Multivariate analysis revealed that neoadjuvant chemotherapy followed by interval debulking surgery independently predicted improved survival (HR = 0.18, p = 0.037), while suboptimal debulking significantly compromised outcomes (HR = 8.86, p = 0.043 for progression-free survival). Conclusion: Our findings paint a sobering picture of ovarian cancer management in Cameroon, characterized by late presentation and suboptimal surgical outcomes. The demonstrated survival benefit of neoadjuvant chemotherapy approaches suggests a promising pathway for improving outcomes in resource-constrained settings where achieving optimal cytoreduction remains challenging.
References
[1]
Sung, H., Ferlay, J., Siegel, R.L., Laversanne, M., Soerjomataram, I., Jemal, A., et al. (2021) Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA: A Cancer Journal for Clinicians, 71, 209-249. https://doi.org/10.3322/caac.21660
[2]
du Bois, A., Reuss, A., Pujade‐Lauraine, E., Harter, P., Ray‐Coquard, I. and Pfisterer, J. (2009) Role of Surgical Outcome as Prognostic Factor in Advanced Epithelial Ovarian Cancer: A Combined Exploratory Analysis of 3 Prospectively Randomized Phase 3 Multicenter Trials. Cancer, 115, 1234-1244. https://doi.org/10.1002/cncr.24149
[3]
Mboumba Bouassa, R.S., Prazuck, T., Lethu, T., Meye, J.F. and Bélec, L. (2017) Cervical Cancer in Sub-Saharan Africa: An Emerging and Preventable Disease Associated with Oncogenic Human Papillomavirus. MédecineetSantéTropicales, 27, 16-22. https://doi.org/10.1684/mst.2017.0648
[4]
Sando, Z., Mboudou, E., Fouogue, T.J., Nganwa, G., Tchuendem, J., Essame, J.L., et al. (2010) Profil Clinique et Anatomopathologique des Cancers de l’Ovaire a Yaoundé, Cameroun. ClinicsinMotherandChildHealth, 7, 1-5. https://doi.org/10.4303/cmch/c101737
[5]
Sando, Z., Fouogue, J.T., Fouelifack, F.Y., Fouedjio, J.H., Mboudou, E.T. and Oyono, J.L. (2014) Profile of Breast and Gynecological Cancers in Yaoundé-Cameroon. PanAfricanMedicalJournal, 17, Article No. 28. https://doi.org/10.11604/pamj.2014.17.28.3447
[6]
Okunade, K., Okunola, H., Okunowo, A. and Anorlu, R. (2016) A Five Year Review of Ovarian Cancer at a Tertiary Institution in Lagos, South-West, Nigeria. TheNigerianJournalofGeneralPractice, 14, 23-27. https://doi.org/10.4103/1118-4647.187901
[7]
Tanko, M.N., Kayembe, M.A., Cainelli, F. and Vento, S. (2012) Malignant Tumours of the Genital Tract among Batswana Women. Ghana Medical Journal, 46, 142-146.
[8]
Gharoro, E.P. and Eirewele, O. (2006) Cancer of the Ovary at the University of Benin Teaching Hospital: A 10-Year Review, 1992-2001. African Journal of Medicine and Medical Sciences, 35, 143-147.
[9]
Berek, J.S., Renz, M., Kehoe, S., Kumar, L. and Friedlander, M. (2021) Cancer of the Ovary, Fallopian Tube, and Peritoneum: 2021 Update. InternationalJournalofGynecology&Obstetrics, 155, 61-85. https://doi.org/10.1002/ijgo.13878
[10]
Sankaranarayanan, R. and Ferlay, J. (2006) Worldwide Burden of Gynaecological Cancer: The Size of the Problem. BestPractice&ResearchClinicalObstetrics&Gynaecology, 20, 207-225. https://doi.org/10.1016/j.bpobgyn.2005.10.007
[11]
Ayogu, M.E., Abdullahi, H.I. and Eze, I.O. (2020) Incidence, Characteristics, Pattern and Management of Ovarian Cancer in Abuja, Nigeria. InternationalJournalofResearchinMedicalSciences, 8, 3187-3193. https://doi.org/10.18203/2320-6012.ijrms20203665
[12]
Iyoke, C., Ugwu, G., Ezugwu, E., Onah, N., Ugwu, O. and Okafor, O. (2013) Incidence, Pattern and Management of Ovarian Cancer at a Tertiary Medical Center in Enugu, South East Nigeria. AnnalsofMedicalandHealthSciencesResearch, 3, Article No. 417. https://doi.org/10.4103/2141-9248.117947
[13]
Rabiu, K.A., Akinola, O.I., Adewunmi, A.A., Fabamwo, A.O., Adedeji, M.O. and Popoola, A.O. (2013) Delays in Presentation and Management of Ovarian Cancer in Lagos, Nigeria. JournalofObstetricsandGynaecology, 33, 305-308. https://doi.org/10.3109/01443615.2012.753417
[14]
Engbang, N.J.P., Essome, H., Bell, E.D., Fonkwa, C. and Essame, O.J.L. (2015) Epidemiological and Histological Profile of Ovarian Cancer in Douala (Cameroon): About 91 Cases. AfricanJournalofCancer, 7, 190-194. https://doi.org/10.1007/s12558-015-0394-5
[15]
Umar, U.A., Yakasai, I.A. and Adamou, N. (2016) Ovarian Cancer: Pattern of Care in a Tertiary Health Centre in Sub-Saharan Africa. TropicalJournalofObstetricsandGynaecology, 33, 288-291. https://doi.org/10.4103/tjog.tjog_51_16
[16]
Abuidris, D.O., Weng, H., Elhaj, A.M., Eltayeb, E.A., Elsanousi, M., Ibnoof, R.S., et al. (2016) Incidence and Survival Rates of Ovarian Cancer in Low-Income Women in Sudan. MolecularandClinicalOncology, 5, 823-828. https://doi.org/10.3892/mco.2016.1068
[17]
Ray-Coquard, I., Morice, P., Lorusso, D., Prat, J., Oaknin, A., Pautier, P., et al. (2018) Non-Epithelial Ovarian Cancer: ESMO Clinical Practice Guidelines for Diagnosis, Treatment and Follow-Up. AnnalsofOncology, 29, iv1-iv18. https://doi.org/10.1093/annonc/mdy001
[18]
Chang, S., Hodeib, M., Chang, J. and Bristow, R.E. (2013) Survival Impact of Complete Cytoreduction to No Gross Residual Disease for Advanced-Stage Ovarian Cancer: A Meta-Analysis. GynecologicOncology, 130, 493-498. https://doi.org/10.1016/j.ygyno.2013.05.040
[19]
Fagotti, A., Ferrandina, G., Fanfani, F., Ercoli, A., Lorusso, D., Rossi, M., et al. (2006) A Laparoscopy-Based Score to Predict Surgical Outcome in Patients with Advanced Ovarian Carcinoma: A Pilot Study. AnnalsofSurgicalOncology, 13, 1156-1161. https://doi.org/10.1245/aso.2006.08.021
[20]
Fagotti, A., Ferrandina, G., Fanfani, F., Garganese, G., Vizzielli, G., Carone, V., et al. (2008) Prospective Validation of a Laparoscopic Predictive Model for Optimal Cytoreduction in Advanced Ovarian Carcinoma. American Journal of Obstetrics and Gynecology, 199, 642.e1-642.e6. https://doi.org/10.1016/j.ajog.2008.06.052
[21]
Pectasides, D., Papaxoinis, G., Fountzilas, G., Aravantinos, G., Bamias, A., Pavlidis, N., et al. (2009) Epithelial Ovarian Cancer in Greece: A Retrospective Study of 1791 Patients by the Hellenic Cooperative Oncology Group (HeCOG). Anticancer Research, 29, 745-751.
[22]
Andreou, M., Kyprianidou, M., Cortas, C., Polycarpou, I., Papamichael, D., Kountourakis, P., et al. (2023) Prognostic Factors Influencing Survival in Ovarian Cancer Patients: A 10-Year Retrospective Study. Cancers, 15, Article No. 5710. https://doi.org/10.3390/cancers15245710
[23]
Lokman, N., Ab. Hamid, S.A. and Bachok, N. (2017) Survival Study and Prognostic Factors of Ovarian Cancer Registered in a Teaching Hospital in Malaysia. SainsMalaysia, 46, 559-565. https://doi.org/10.17576/jsm-2017-4604-07
[24]
Dem, A., Dieng, M.M., Ka, S., Gaye, P.M., Diouf, D. and Gaye-Fall, M.C. (2013) Diagnosis and Treatment of Epithelial Ovarian Cancer at the West African Cancer Center of Dakar. BulletinduCancer, 100, 155-160. https://doi.org/10.1684/bdc.2013.1693
[25]
Arora, N., Talhouk, A., McAlpine, J.N., Law, M.R. and Hanley, G.E. (2018) Long-Term Mortality among Women with Epithelial Ovarian Cancer: A Population-Based Study in British Columbia, Canada. BMCCancer, 18, Article No. 1039. https://doi.org/10.1186/s12885-018-4970-9
[26]
Pace, L.E., Mpunga, T., Hategekimana, V., Dusengimana, J.V., Habineza, H., Bigirimana, J.B., et al. (2015) Delays in Breast Cancer Presentation and Diagnosis at Two Rural Cancer Referral Centers in Rwanda. TheOncologist, 20, 780-788. https://doi.org/10.1634/theoncologist.2014-0493
[27]
Vergote, I., Tropé, C.G., Amant, F., Kristensen, G.B., Ehlen, T., Johnson, N., et al. (2010) Neoadjuvant Chemotherapy or Primary Surgery in Stage IIIC or IV Ovarian Cancer. NewEnglandJournalofMedicine, 363, 943-953. https://doi.org/10.1056/nejmoa0908806
[28]
Fagotti, A., Ferrandina, M.G., Vizzielli, G., Pasciuto, T., Fanfani, F., Gallotta, V., et al. (2020) Randomized Trial of Primary Debulking Surgery versus Neoadjuvant Chemotherapy for Advanced Epithelial Ovarian Cancer. InternationalJournalofGynecologicalCancer, 30, 1657-1664. https://doi.org/10.1136/ijgc-2020-001640
[29]
Vergote, I., Coens, C., Nankivell, M., Kristensen, G.B., Parmar, M.K.B., Ehlen, T., et al. (2018) Neoadjuvant Chemotherapy versus Debulking Surgery in Advanced Tubo-Ovarian Cancers: Pooled Analysis of Individual Patient Data from the EORTC 55971 and CHORUS Trials. TheLancetOncology, 19, 1680-1687. https://doi.org/10.1016/s1470-2045(18)30566-7
[30]
Bryant, A., Hiu, S., Kunonga, P.T., Gajjar, K., Craig, D., Vale, L., et al. (2022) Impact of Residual Disease as a Prognostic Factor for Survival in Women with Advanced Epithelial Ovarian Cancer after Primary Surgery. CochraneDatabaseofSystematicReviews, 9, CD015048. https://doi.org/10.1002/14651858.cd015048.pub2