Question explored with the scientific record
Conversation so far
- 1 What is the mechanis for improving cardiac output
- 2 How does Marianne improve cardiac output
Answered on this page ↓
How does Marianne improve cardiac output
The short version: there is no drug, supplement, or device called Marianne in these records, and I can't confirm what it is or how it works.
I don't know what Marianne is. It isn't in the evidence in front of me, and I won't invent a mechanism for a product I can't identify. If it's a supplement, a device, or a clinic protocol, the burden is on whoever sells it to show a hard outcome, not a lab reading.
What the records do show is how cardiac output actually gets raised, and any honest claim about Marianne has to fit one of these levers. Lowering the resistance the heart pushes against works: nicorandil raised cardiac index 55% at 30 minutes, entirely through stroke volume with heart rate unchanged [4]. Hydralazine plus digoxin beat either alone, lifting output from 3.14 to 4.50 L/min at rest [1]. Filling the heart more works too: CPAP raised cardiac index only in the heart failure patients with high filling pressures, and lowered it in normal subjects [3]. Thyroid hormone (T3) rescued low output after bypass in 10 patients, but that was uncontrolled [2].
| Lever | Effect on output | Source |
|---|---|---|
| Lower afterload (nicorandil) | Index +55% via stroke volume | [4] |
| Lower afterload (hydralazine + digoxin) | 3.14 to 4.50 L/min at rest | [1] |
| More filling (CPAP, high filling pressure) | Index 2.47 to 3.12 | [3] |
| Thyroid hormone (T3) | Rescue, uncontrolled, n=10 | [2] |
My call: I can't tell you how Marianne improves cardiac output because I can't confirm it exists as a studied intervention, and any seller claiming it does owes you a controlled trial with a real outcome, not a testimonial. Confidence: not clear.
Sources used 4
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Vasodilators as first-line therapy for congestive heart failure: A comparative hemodynamic study of hydralazine, digoxin, and their combination
This study compares the acute hemodynamic effects of hydralazine, digoxin, and their combination in patients with congestive heart failure, finding that hydralazine is at least as effective as digoxin and that their combination yields greater improvements in cardiac output and s…
DOI: 10.1016/0002-8703(87)90312-7 -
Inotropic effect of triiodothyronine (T3) in low cardiac output following cardioplegic arrest and cardiopulmonary bypass: an initial experience in patients undergoing open heart surgery
A small, uncontrolled clinical study in 10 open-heart surgery patients with severe low cardiac output, where intravenous triiodothyronine (T3) was administered to assess hemodynamic effects and inotropic requirements, showing rapid improvement and suggesting T3 as a potential re…
DOI: 10.1016/1010-7940(89)90092-4 -
Haemodynamic Effects of Continuous Positive Airway Pressure in Humans with Normal and Impaired Left Ventricular Function
This study investigates the haemodynamic effects of continuous positive airway pressure (CPAP) on cardiac and stroke volume indices in patients with chronic heart failure and normal subjects, revealing that CPAP increases these indices in patients with elevated left ventricular …
DOI: 10.1042/cs0880173 -
Hemodynamic action of nicorandil in chronic congestive heart failure
Single oral nicorandil administration in chronic congestive heart failure yields rapid, measurable hemodynamic improvements consistent with unloading of the failing heart: decreased wedge and arterial pressures, decreased systemic vascular resistance, and a substantial rise in c…
DOI: 10.1016/0002-9149(89)90204-x