# Blood pressure self-monitoring and physician-guided dose changes after birth Intervention · id `maternal:postpartum-bp-self-management` · Maternal & Newborn Atlas · release `c7fb95f1d15a7d13` (public) > General information from published sources, not medical advice, and not reviewed by clinicians. Check the cited source before relying on anything here. The atlas's own text and curation may be reused under Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/): credit the atlas, and do not use it commercially. See the atlas About page. Text quoted from a source stays under that source's own terms, given as the source's reuse\_basis. The atlas's reuse terms do not cover it. The downloads list each quotation with its source in third\_party\_quotations. Browse, life stage: Postpartum Browse, care area: Recovery after birth ## In plain language Measuring your own blood pressure at home after birth and following an app that suggests changes to blood pressure medicine, with doctors checking the readings and approving the changes. It was tested in one UK trial of women who had had pre-eclampsia or gestational hypertension, and their blood pressure was lower about 9 months after birth than with usual care. ## Technical summary The strategy tested in POP-HT: a Bluetooth home blood pressure monitor and a smartphone app with a medicine-titration algorithm, with physicians who can review uploaded readings and respond to abnormal readings (registry description). The trial found lower 24-hour blood pressure at about 249 days after birth (diastolic -5.80 mm Hg, systolic -6.51 mm Hg). It is one single-site trial, and its outcome is blood pressure, not heart or blood vessel events. No guideline recommendation on this strategy was read. It links to the core record for home blood pressure monitoring. ## Claims, with the population each applies to ## Context: Women after a pregnancy with pre-eclampsia or gestational hypertension who needed blood pressure medicine at discharge, POP-HT trial, UK Recipient: Maternal; Population: Women aged 18 years or older whose pregnancy was complicated by pre-eclampsia or gestational hypertension and who needed blood pressure medicine after birth when they were discharged (abstract eligibility). In the trial, 40% had gestational hypertension and 60% had pre-eclampsia, and the mean age was 32.6 years. The outcome is the woman's own blood pressure, so the recipient and the measured population are the same. The registry excludes women with pre-existing hypertension.; Care setting: A single hospital in the UK (abstract). The registry lists two sites, both in Oxford.; Geography: United Kingdom; Life stage: Postnatal period: the primary outcome was measured about 249 days after birth, in the first 9 months postpartum; Gestational age: Not reported; Postnatal age: Not reported; Follow-up: About 9 months after birth (abstract). The 24-hour blood pressure was measured at about 249 days postpartum. The registry gives the primary outcome time frame as 6 months postpartum. ### In POP-HT, a randomised trial at a single UK hospital, 220 women who had had pre-eclampsia or gestational hypertension and still needed blood pressure medicine at discharge were assigned to self-monitoring with doctor-guided changes in their medicine (112 women) or to usual postnatal care (108 women). Of them, 200 (91%) were in the primary analysis. At about 249 days after birth, 24-hour mean diastolic blood pressure was 71.2 mm Hg with the intervention and 76.6 mm Hg with usual care, a between-group difference of -5.80 mm Hg (95% CI -7.40 to -4.20; P < .001). Systolic pressure was 114.0 and 120.3 mm Hg, a difference of -6.51 mm Hg (95% CI -8.80 to -4.22; P < .001). - Category: Effect - Evidence stage: Interventional - Certainty: Certainty not assessed - Applies to: Recipient: Maternal; Population: Women aged 18 years or older whose pregnancy was complicated by pre-eclampsia or gestational hypertension and who needed blood pressure medicine after birth when they were discharged (abstract eligibility). In the trial, 40% had gestational hypertension and 60% had pre-eclampsia, and the mean age was 32.6 years. The outcome is the woman's own blood pressure, so the recipient and the measured population are the same. The registry excludes women with pre-existing hypertension.; Care setting: A single hospital in the UK (abstract). The registry lists two sites, both in Oxford.; Geography: United Kingdom; Life stage: Postnatal period: the primary outcome was measured about 249 days after birth, in the first 9 months postpartum; Gestational age: Not reported; Postnatal age: Not reported; Follow-up: About 9 months after birth (abstract). The 24-hour blood pressure was measured at about 249 days postpartum. The registry gives the primary outcome time frame as 6 months postpartum. - Limitations: The trial was open-label with a blinded end point, run at one site, and the authors call the result an association in a single-centre trial. The outcome is blood pressure, not a heart or blood vessel event; the abstract reports no such events. The registry record was last updated on 2021-10-22 and still lists an estimated enrolment of 200, an estimated primary completion date of 2022-04-01 and a primary outcome time frame of 6 months, against 220 randomised and 9 months in the paper. The two records are kept side by side and are not reconciled. Only the PubMed abstract was read; the PMC copy is not in the open access subset. - Last checked: 2026-10-15 - Sources: 1. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 1. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract of the JAMA 2023 trial report. 2. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 3. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 3. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 4, fragment 1 of 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 4. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 5. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 5. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 6, fragment 1 of 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 6. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 7. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 7. Background: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, INTERVENTIONS, sentence 1. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: What the two groups received. 8. Background: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, DESIGN, SETTING, AND PARTICIPANTS, sentence 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: Who could take part. 9. Background: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, MAIN OUTCOMES AND MEASURES, sentence 1. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: The primary outcome. 10. Background: Physician Optimised Post-partum Hypertension Treatment Trial (Registry, edition ClinicalTrials.gov API v2 record, last update posted 2021-10-22.) Locator: protocolSection.outcomesModule.primaryOutcomes\[0\].timeFrame. Retrieved 2026-10-15T13:49:13Z. Source state: Current. Snapshot hash: 18fb97faaf4bb6fea5b57809e872bfddbbffe6d62fa9556698a5439f31f5cc59. How it applies: The registry gives 6 months postpartum for the primary outcome. 11. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 4, fragment 2 of 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 12. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 6, fragment 2 of 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. 13. Supports: Long-Term Blood Pressure Control After Hypertensive Pregnancy Following Physician-Optimized Self-Management: The POP-HT Randomized Clinical Trial (Publication, edition PubMed record (abstract and bibliographic data) from NCBI E-utilities, retrieved 2026-10-15. The full text and the version of record were not read. PMC10640702 is not in the PMC Open Access subset, so no full text was fetched.) Locator: Abstract, RESULTS, sentence 2. Retrieved 2026-10-15T13:49:16Z. Source state: Current. Snapshot hash: 6d59f07afba300ca863482def34fb95d2e38a506d4185033a15ae18e6c91f28b. How it applies: PubMed abstract. ## Connected pages - POP-HT: lower 24-hour blood pressure about 9 months after birth in women after pre-eclampsia or gestational hypertension (one single-site trial): High blood pressure after birth (mother) (`maternal:postpartum-hypertension`) [a claim, not a settled fact; see claim `maternal:claim-pop-ht-blood-pressure-9-months` and its context] - Uses home blood pressure monitoring (core record): Home blood pressure monitoring (`core:home-bp-monitoring`) - Filed under this front: Imaging and monitoring (`maternal:front-imaging-and-monitoring`) - Investigated in: POP-HT trial (Physician Optimised Post-partum Hypertension Treatment) (`maternal:pop-ht-trial`) ## Provenance Content hash: 47e177e9ac5d5afcf6c78d10829da438f1a2b5652f5288b334e5a459ba66955c Last substantive edit: 2026-10-15 Evidence last checked: 2026-10-15