Olivia Keiser

Summary

Affiliation: University of Bern
Country: Switzerland

Publications

  1. doi request reprint Antiretroviral treatment during pregnancy
    Olivia Keiser
    Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
    AIDS 22:2323-30. 2008
  2. pmc Mortality after failure of antiretroviral therapy in sub-Saharan Africa
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    Trop Med Int Health 15:251-8. 2010
  3. pmc Accuracy of WHO CD4 cell count criteria for virological failure of antiretroviral therapy
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, CH 3012 Bern, Switzerland
    Trop Med Int Health 14:1220-5. 2009
  4. doi request reprint Suicide in HIV-infected individuals and the general population in Switzerland, 1988-2008
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Finkenhubelweg 11, CH 3012 Bern, Switzerland
    Am J Psychiatry 167:143-50. 2010
  5. pmc Outcomes of antiretroviral treatment in programmes with and without routine viral load monitoring in Southern Africa
    Olivia Keiser
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 25:1761-9. 2011
  6. pmc Early loss of HIV-infected patients on potent antiretroviral therapy programmes in lower-income countries
    Martin W G Brinkhof
    Institute of Social and Preventive Medicine, Bern, Switzerland
    Bull World Health Organ 86:559-67. 2008
  7. pmc The role of targeted viral load testing in diagnosing virological failure in children on antiretroviral therapy with immunological failure
    Mary Ann Davies
    School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa Empilweni Service and Research Unit, Rahima Moosa Mother and Child Hospital and University of Witwatersrand, Johannesburg, South Africa Red Cross Children s Hospital and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa Wits Reproductive Health and HIV Institute Harriet Shezi Children s Clinic, Chris Hani Baragwanath Hospital, Soweto, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa Tygerberg Academic Hospital, University of Stellenbosch, Stellenbosch, South Africa Médecins Sans Frontières South Africa and Khayelitsha ART Programme, Khayelitsha, Cape Town, South Africa Sinikithemba Clinic, McCord Hospital, Durban, South Africa Gugulethu Community Health Centre and Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    Trop Med Int Health 17:1386-90. 2012
  8. pmc Switching to second-line antiretroviral therapy in resource-limited settings: comparison of programmes with and without viral load monitoring
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    AIDS 23:1867-74. 2009
  9. pmc Retention in care of HIV-infected children from HIV test to start of antiretroviral therapy: systematic review
    Catrina Mugglin
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    PLoS ONE 8:e56446. 2013
  10. pmc The causal effect of switching to second-line ART in programmes without access to routine viral load monitoring
    Thomas Gsponer
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 26:57-65. 2012

Detail Information

Publications30

  1. doi request reprint Antiretroviral treatment during pregnancy
    Olivia Keiser
    Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
    AIDS 22:2323-30. 2008
    ..Virologic failure of HIV-positive patients is of special concern during pregnancy. We compared virologic failure and the frequency of treatment changes in pregnant and non-pregnant women of the Swiss HIV Cohort Study...
  2. pmc Mortality after failure of antiretroviral therapy in sub-Saharan Africa
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    Trop Med Int Health 15:251-8. 2010
    ..To assess the outcome of patients who experienced treatment failure with antiretrovirals in sub-Saharan Africa...
  3. pmc Accuracy of WHO CD4 cell count criteria for virological failure of antiretroviral therapy
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, CH 3012 Bern, Switzerland
    Trop Med Int Health 14:1220-5. 2009
    ..To examine the accuracy of the World Health Organization immunological criteria for virological failure of antiretroviral treatment...
  4. doi request reprint Suicide in HIV-infected individuals and the general population in Switzerland, 1988-2008
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Finkenhubelweg 11, CH 3012 Bern, Switzerland
    Am J Psychiatry 167:143-50. 2010
    ..The authors examined time trends and predictors of suicide in the pre-HAART (1988-1995) and HAART (1996-2008) eras in HIV-infected patients and the general population in Switzerland...
  5. pmc Outcomes of antiretroviral treatment in programmes with and without routine viral load monitoring in Southern Africa
    Olivia Keiser
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 25:1761-9. 2011
    ..To compare outcomes of antiretroviral therapy (ART) in South Africa, where viral load monitoring is routine, with those in Malawi and Zambia, where monitoring is based on CD4 cell counts...
  6. pmc Early loss of HIV-infected patients on potent antiretroviral therapy programmes in lower-income countries
    Martin W G Brinkhof
    Institute of Social and Preventive Medicine, Bern, Switzerland
    Bull World Health Organ 86:559-67. 2008
    ..To analyse the early loss of patients to antiretroviral therapy (ART) programmes in resource-limited settings...
  7. pmc The role of targeted viral load testing in diagnosing virological failure in children on antiretroviral therapy with immunological failure
    Mary Ann Davies
    School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa Empilweni Service and Research Unit, Rahima Moosa Mother and Child Hospital and University of Witwatersrand, Johannesburg, South Africa Red Cross Children s Hospital and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa Wits Reproductive Health and HIV Institute Harriet Shezi Children s Clinic, Chris Hani Baragwanath Hospital, Soweto, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa Tygerberg Academic Hospital, University of Stellenbosch, Stellenbosch, South Africa Médecins Sans Frontières South Africa and Khayelitsha ART Programme, Khayelitsha, Cape Town, South Africa Sinikithemba Clinic, McCord Hospital, Durban, South Africa Gugulethu Community Health Centre and Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    Trop Med Int Health 17:1386-90. 2012
    ....
  8. pmc Switching to second-line antiretroviral therapy in resource-limited settings: comparison of programmes with and without viral load monitoring
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    AIDS 23:1867-74. 2009
    ..We examined switching from nonnucleoside reverse transcriptase inhibitor (NNRTI)-based first-line regimens to protease inhibitor-based regimens in Africa, South America and Asia...
  9. pmc Retention in care of HIV-infected children from HIV test to start of antiretroviral therapy: systematic review
    Catrina Mugglin
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    PLoS ONE 8:e56446. 2013
    ..The magnitude and reasons for loss to follow-up and death between HIV diagnosis and start of ART in children are not well defined...
  10. pmc The causal effect of switching to second-line ART in programmes without access to routine viral load monitoring
    Thomas Gsponer
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 26:57-65. 2012
    ..We examined the effect of switching to second-line antiretroviral therapy (ART) on mortality in patients who experienced immunological failure in ART programmes without access to routine viral load monitoring in sub-Saharan Africa...
  11. pmc Tracing of patients lost to follow-up and HIV transmission: mathematical modeling study based on 2 large ART programs in Malawi
    Janne Estill
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland The International Union Against Tuberculosis and Lung Disease, Paris, France Lighthouse Trust, Lilongwe, Malawi Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa Department of Infectious Diseases, University Hospital Bern, Bern, Switzerland Department of Infectious Diseases, University of Dakar, Dakar, Senegal International Training and Education Center for Health, University of Washington, Seattle, WA
    J Acquir Immune Defic Syndr 65:e179-86. 2014
    ..Treatment as prevention depends on retaining HIV-infected patients in care. We investigated the effect on HIV transmission of bringing patients lost to follow-up (LTFU) back into care...
  12. pmc Antiretroviral therapy in resource-limited settings 1996 to 2006: patient characteristics, treatment regimens and monitoring in sub-Saharan Africa, Asia and Latin America
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Finkenhubelweg 11, 3012 Bern, Switzerland
    Trop Med Int Health 13:870-9. 2008
    ..To describe temporal trends in baseline clinical characteristics, initial treatment regimens and monitoring of patients starting antiretroviral therapy (ART) in resource-limited settings...
  13. pmc Public-health and individual approaches to antiretroviral therapy: township South Africa and Switzerland compared
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    PLoS Med 5:e148. 2008
    ..We compared virologic response, changes to first-line regimens, and mortality in HIV-infected patients starting HAART in South Africa and Switzerland...
  14. pmc Zidovudine impairs immunological recovery on first-line antiretroviral therapy: collaborative analysis of cohort studies in southern Africa
    Gilles Wandeler
    aDivision of International and Environmental Health, Institute of Social and Preventive Medicine ISPM, University of Bern bDepartment of Infectious Diseases, University Hospital Bern, Bern, Switzerland cCentre for Infectious Disease Research in Zambia, Lusaka, Zambia dKhayelitsha ART Programme, Medecins Sans Frontieres, Cape Town eThe Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town fThemba Lethu Clinic, Johannesburg gDivision of Infectious Diseases, Department of Medicine, University of Stellenbosch and Tygerberg Academic Hospital, Cape Town hAurum Institute for Health Research, Johannesburg, South Africa iSolidarMed Lesotho, Lucerne, Switzerland jHIV private practice, Gaborone, Botswana kSchool of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
    AIDS 27:2225-32. 2013
    ..ZDV may, however, lead to anemia and impaired immunological response. We compared CD4+ cell counts over 5 years between patients starting ART with and without ZDV in southern Africa...
  15. pmc Electronic medical record systems, data quality and loss to follow-up: survey of antiretroviral therapy programmes in resource-limited settings
    Mathieu Forster
    Institute of Social and Preventive Medicine, University of Bern, Switzerland
    Bull World Health Organ 86:939-47. 2008
    ....
  16. pmc Missed opportunities to prevent mother-to-child-transmission: systematic review and meta-analysis
    Celina Wettstein
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 26:2361-73. 2012
    ..To determine magnitude and reasons of loss to program and poor antiretroviral prophylaxis coverage in prevention of mother-to-child transmission (PMTCT) programs in sub-Saharan Africa...
  17. pmc Loss to programme between HIV diagnosis and initiation of antiretroviral therapy in sub-Saharan Africa: systematic review and meta-analysis
    Catrina Mugglin
    Division of International and Environmental Health, Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland Department of Infectious Diseases, University Hospital Bern, Bern, Switzerland School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
    Trop Med Int Health 17:1509-20. 2012
    ..Conclusions  Monitoring and care in the pre-ART time period need improvement, with greater emphasis on patients not yet eligible for ART. ..
  18. pmc Cost-effectiveness of point-of-care viral load monitoring of antiretroviral therapy in resource-limited settings: mathematical modelling study
    Janne Estill
    Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
    AIDS 27:1483-92. 2013
    ..We examined the cost-effectiveness of qualitative point-of-care viral load tests (POC-VL) in sub-Saharan Africa...
  19. pmc Monitoring of antiretroviral therapy and mortality in HIV programmes in Malawi, South Africa and Zambia: mathematical modelling study
    Janne Estill
    Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    PLoS ONE 8:e57611. 2013
    ..We examined whether different monitoring of ART (viral load [VL] in South Africa and CD4 count in Malawi and Zambia) could explain this mortality difference...
  20. pmc Tenofovir in second-line ART in Zambia and South Africa: collaborative analysis of cohort studies
    Gilles Wandeler
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Finkenhubelweg 11, CH 3012 Bern, Switzerland
    J Acquir Immune Defic Syndr 61:41-8. 2012
    ..We compared outcomes of second-line ART containing and not containing TDF in cohort studies from Zambia and the Republic of South Africa (RSA)...
  21. pmc Tuberculosis after initiation of antiretroviral therapy in low-income and high-income countries
    Martin W G Brinkhof
    Institute of Social and Preventive Medicine ISPM, University of Berne, Finkenhubelweg 11, CH 3012 Bern, Switzerland
    Clin Infect Dis 45:1518-21. 2007
    ..48 (95% confidence interval, 0.36-0.64) in low-income countries and 0.36 (95% confidence interval, 0.26-0.50) in high-income countries. A low CD4 cell count at the start of therapy was the most important risk factor in both settings...
  22. pmc Viral load monitoring of antiretroviral therapy, cohort viral load and HIV transmission in Southern Africa: a mathematical modelling analysis
    Janne Estill
    Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS 26:1403-13. 2012
    ..Consequently, patients remain on a failing regimen, resulting in a higher risk of transmission. We investigated the benefit of routine viral load monitoring for reducing HIV transmission...
  23. pmc A comparison of initial antiretroviral therapy in the Swiss HIV Cohort Study and the recommendations of the International AIDS Society-USA
    Gilles Wandeler
    Clinic for Infectious Diseases, Bern University Hospital and University of Bern, Bern, Switzerland
    PLoS ONE 6:e27903. 2011
    ..We aimed to study if adherence to the recommendations is associated with better treatment outcomes in the Swiss HIV Cohort Study (SHCS)...
  24. pmc Variability of growth in children starting antiretroviral treatment in southern Africa
    Thomas Gsponer
    Institute of Social and Preventive Medicine ISPM, University of Bern, Finkenhubelweg 11, CH 3012 Bern, Switzerland
    Pediatrics 130:e966-77. 2012
    ..Poor growth is an indication for antiretroviral therapy (ART) and a criterion for treatment failure. We examined variability in growth response to ART in 12 programs in Malawi, Zambia, Zimbabwe, Mozambique, and South Africa...
  25. pmc Early mortality and loss to follow-up in HIV-infected children starting antiretroviral therapy in Southern Africa
    Lukas Fenner
    Institute of Social and Preventive Medicine, University of Bern, Switzerland
    J Acquir Immune Defic Syndr 54:524-32. 2010
    ..We analyzed mortality in children retained in care and in all children starting ART, taking LTFU into account...
  26. ncbi request reprint Adverse events to antiretrovirals in the Swiss HIV Cohort Study: effect on mortality and treatment modification
    Olivia Keiser
    Institute of Social and Preventive Medicine ISPM, University of Bern, Switzerland
    Antivir Ther 12:1157-64. 2007
    ..Antiretroviral therapy (ART) decreases morbidity and mortality in HIV-infected patients but is associated with considerable adverse events (AEs)...
  27. pmc Estimating loss to follow-up in HIV-infected patients on antiretroviral therapy: the effect of the competing risk of death in Zambia and Switzerland
    Franziska Schöni-Affolter
    Division of International and Environmental Health, Institute of Social and Preventive Medicine ISPM, University of Bern, Bern, Switzerland
    PLoS ONE 6:e27919. 2011
    ..Mortality is a competing risk (CR) for LTFU; however, it is often overlooked in cohort analyses. We examined how the CR of death affected LTFU estimates in Zambia and Switzerland...
  28. pmc Outcomes of antiretroviral treatment programs in rural Southern Africa
    Gilles Wandeler
    Division of International and Environmental Health, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
    J Acquir Immune Defic Syndr 59:e9-16. 2012
    ..We describe early losses and long-term outcomes in 6 rural programs in Southern Africa with limited access to viral load monitoring and second-line ART...
  29. doi request reprint Outcomes of antiretroviral therapy in the Swiss HIV Cohort Study: latent class analysis
    Olivia Keiser
    Institute of Social and Preventive Medicine, University of Bern, Switzerland
    AIDS Behav 16:245-55. 2012
    ..Socio-behavioral groups identified by LCA allow insights above what can be gleaned from traditional transmission groups, and may identify patients who could benefit from targeted interventions...
  30. pmc Are They Really Lost? "True" Status and Reasons for Treatment Discontinuation among HIV Infected Patients on Antiretroviral Therapy Considered Lost to Follow Up in Urban Malawi
    Hannock Tweya
    The International Union Against Tuberculosis and Lung Disease, Paris, France Lighthouse Trust, Lilongwe, Malawi Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
    PLoS ONE 8:e75761. 2013
    ....