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- Rivasi, Giulia, et al.
(författare)
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AMBULATORY BLOOD PRESSURE MONITORING : A NEW DIAGNOSTIC APPROACH FOR DETECTION OF HYPOTENSION IN REFLEX SYNCOPE (SYNABPM 1 STUDY)
- 2022
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Ingår i: Journal of Hypertension. - : Ovid Technologies (Wolters Kluwer Health). - 1473-5598 .- 0263-6352. ; 40:Suppl 1, s. 10-10
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Konferensbidrag (refereegranskat)abstract
- OBJECTIVE: Diagnostic criteria for ambulatory blood pressure monitoring (ABPM) in patients with suspected reflex syncope are lacking. We hypothesized that patients with reflex syncope have a higher prevalence of systolic blood pressure (SBP) drops on ABPM. DESIGN AND METHOD: We conducted a retrospective analysis comparing ABPM data from reflex syncope patients and controls, matched by average 24-hour SBP, age, sex and hypertension. Patients with constitutional hypotension, orthostatic hypotension, predominant cardioinhibition or competing causes of syncope were excluded. Daytime and night-time SBP drops (<110, 100, 90, 80 mmHg) were assessed. Hypotensive susceptibility was defined likely or possible for cut-offs achieving the highest sensitivity among those with specificity > 90% and 80-90%, respectively. Findings were validated in an independent sample. RESULTS: In the Derivation cohort, daytime SBP drops were significantly more common in 158 syncope patients than 329 controls. One or more daytime drop < 90 mmHg provided the best diagnostic yield (91% specificity, 32% sensitivity, Odds Ratio [OR] = 4.6, p = 0.001). Two or more-daytime drops < 100 mmHg achieved 84% specificity and 40% sensitivity (OR = 3.5, p = 0.001). Results were confirmed in the Validation cohort: one or more daytime SBP drop < 90 mmHg provided 94% specificity and 29% sensitivity (OR = 6.2, p < 0.001), while two or more daytime SBP drops < 100 mmHg achieved 83% specificity and 35% sensitivity (OR = 3.5, p < 0.001). CONCLUSIONS: SBP drops during ABPM are more common in reflex syncope patients than in controls. Cut-off values that may be applied in clinical practice are defined. This study expands the current indications for ABPM to patients with reflex syncope.
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| 2. |
- Rivasi, Giulia, et al.
(författare)
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Association between hypotension during 24 h ambulatory blood pressure monitoring and reflex syncope : the SynABPM 1 study
- 2022
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Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 1522-9645 .- 0195-668X. ; 43:38, s. 3765-3776
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: Diagnostic criteria for ambulatory blood pressure monitoring (ABPM) in patients with suspected reflex syncope are lacking. The study hypothesis was that patients with reflex syncope have a higher prevalence of systolic blood pressure (SBP) drops on ABPM.METHODS AND RESULTS: ABPM data from reflex syncope patients and controls, matched by average 24 h SBP, age, sex, and hypertension were compared. Patients with constitutional hypotension, orthostatic hypotension, and predominant cardioinhibition during carotid sinus massage or prolonged electrocardiogram monitoring or competing causes of syncope were excluded. Daytime and nighttime SBP drops (<110, 100, 90, 80 mmHg) were assessed. Findings were validated in an independent sample. In the derivation sample, daytime SBP drops were significantly more common in 158 syncope patients than 329 controls. One or more daytime drops <90 mmHg achieved 91% specificity and 32% sensitivity [odds ratio (OR) 4.6, P < 0.001]. Two or more daytime drops <100 mmHg achieved 84% specificity and 40% sensitivity (OR 3.5, P = 0.001). Results were confirmed in the validation sample of 164 syncope patients and 164 controls: one or more daytime SBP drops <90 mmHg achieved 94% specificity and 29% sensitivity (OR 6.2, P < 0.001), while two or more daytime SBP drops <100 mmHg achieved 83% specificity and 35% sensitivity (OR 2.6, P < 0.001).CONCLUSION: SBP drops during ABPM are more common in reflex syncope patients than in controls. Cut-off values that may be applied in clinical practice are defined. This study expands the current indications for ABPM to patients with reflex syncope.
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| 3. |
- Sharad, Bashaaer, et al.
(författare)
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Twenty‐Four‐Hour Ambulatory Blood Pressure Profile in Patients With Reflex Syncope and Matched Controls
- 2023
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Ingår i: Journal of the American Heart Association. - 2047-9980. ; 12:8
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundAmbulatory blood pressure (BP) monitoring has long been used to monitor BP in hypertension and lately emerged as a useful tool to detect hypotensive susceptibility in reflex syncope. However, hemodynamic characteristics in reflex syncope have not been sufficiently explored. The present study investigated the differences between ambulatory BP monitoring profiles associated with reflex syncope and normal population.Methods and ResultsThis is an observational study comparing ambulatory BP monitoring data from 50 patients with reflex syncope and 100 controls without syncope, age‐ and sex‐matched 1:2. Mean 24‐hour systolic (SBP) and diastolic BP, pulse pressure (24‐hour PP), dipping status, and number of daytime SBP drops ConclusionsPatients with reflex syncope have lower 24‐hour SBP but higher 24‐hour diastolic BP and more frequent daytime SBP drops
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