Presentation
On presentation, the mean Pco 2 was 64.9 mm Hg and mean pH 7.20; after several hours of treatment, pH was normal and Pco 2 minimally reduced. [jamanetwork.com]
CPO may be a feature of several different types of acute heart failure presentation (see Figure 1). [rcemlearning.co.uk]
[…] doi: 10.1097/TME.0b013e3181946fd8 ARTICLE Abstract Author Information Authors Article Metrics Metrics Acute cardiogenic pulmonary edema (CPE) is a pathology frequently seen in patients presenting to emergency departments (EDs) and can usually be attributed [journals.lww.com]
Conclusions About 50% of patients with APE present respiratory fatigue. [academic.oup.com]
Introduction Acute pulmonary oedema may be the first presentation of heart failure or an exacerbation of existing known heart failure. [handbook.ggcmedicines.org.uk]
Entire Body System
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Falling
As their hypoxia worsens they may become agitated and with worsening respiratory failure may become hypercapnoeic causing their conscious level to fall. [rcemlearning.co.uk]
[…] striking feature of acute pulmonary edema: when the work of breathing is greatly intensified, increased ventilation may be associated with such large increases in CO 2 production from respiratory muscles that arterial pCO 2 actually rises instead of falling [academic.oup.com]
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Disability
Infusion is commenced at 2-3mcg/kg/min and increased as required.(1) (d) Disability Morphine should be given early for patients who are agitated and distressed or complaining of chest pain. [rcemlearning.co.uk]
Respiratoric
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Cough
In each patient the onset of pulmonary edema was evidenced by acute dyspnea, cough, mental distress, and the development of râles throughout the lung fields. In one patient frothy pink sputum was expectorated. [annals.org]
ACS SOB Cough pink frothy sputum Dry cough Green sputum Haemoptysis Chest pain Palpitations Fever Sweating Acuity Nocturnal (ii) Clinical examination (see Box 1 and Table 2) Box 1: Typical examination findings in a patient with acute pulmonary oedema [rcemlearning.co.uk]
Signs and symptoms [ edit ] The most common symptom of pulmonary edema is difficulty breathing, but may include other symptoms such as coughing up blood (classically seen as pink, frothy sputum), excessive sweating, anxiety, and pale skin. [en.wikipedia.org]
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Respiratory Insufficiency
Treatment of acute hypoxemic nonhypercapnic respiratory insufficiency with continuous positive airway pressure delivered by a face mask: a randomized controlled trial JAMA 2000 ; 284 : 2352 -2360. [25], Huberfeld S, Tarasiuk A, et al. [academic.oup.com]
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Orthopnea
Shortness of breath can manifest as orthopnea (inability to lie down flat due to breathlessness) and/or paroxysmal nocturnal dyspnea (episodes of severe sudden breathlessness at night). [en.wikipedia.org]
Cardiovascular
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Hypotension
Specifically, their use may dehydrate the euvolaemic patient and cause hyponatraemia and hypotension. [rcemlearning.co.uk]
Cardiogenic shock (CS) is characterized by systemic hypoperfusion due to severe depression of the cardiac index ( 2 ) and sustained systolic arterial hypotension ( 18 mmHg). It is associated with in-hospital mortality rates 50%. [accessmedicine.mhmedical.com]
[…] has peripheral vasodilatory effects that can result in worsening hypotension, which may require management with a vasopressor. [ncbi.nlm.nih.gov]
Do not give opiate if patient is drowsy, exhausted or hypotensive. Give: furosemide IV 50mg (or in patients already receiving oral diuretics, give, intravenously, double the patient's normal oral dose). Repeat bolus at 30 mins to 1 hour. [handbook.ggcmedicines.org.uk]
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Gallop Rhythm
The heart sounds may be inaudible over the rales from the lungs but a gallop rhythm may be present. Murmurs, especially mitral regurgitation and aortic stenosis, should be listened for, and may reveal a precipitating cause. [rcemlearning.co.uk]
Urogenital
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Renal Insufficiency
Table 2 Recommended doses of furosemide (frusemide) Presentation and administration Dose Frequency Slow intravenous bolus 4 mg/min repeat after 20 min if necessary – normal renal function 40–80 mg – – renal insufficiency or severe heart failure up to [ncbi.nlm.nih.gov]
Neurologic
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Agitation
As their hypoxia worsens they may become agitated and with worsening respiratory failure may become hypercapnoeic causing their conscious level to fall. [rcemlearning.co.uk]
[…] correction). 18 A judgement on ventilatory performance based on respiratory pattern, such as the presence of a rapid-shallow breathing, is of uncertain reliability. 19–20 During APE various conditions other than respiratory fatigue, like hypoxemia, agitation [academic.oup.com]
Workup
T Wave
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T Wave Inversion
Fig 4: Example ECG 1 in CPO Sinus Tachycardia with widespread T wave inversion and Q waves V1 and V2 Fig 5: Example ECG 2 in CPO Atrial flutter with 2:1 block Fig 6: Example ECG 3 Atrial fibrillation with ventricular ectopics and lateral T wave inversion [rcemlearning.co.uk]
Treatment
On presentation, the mean Pco 2 was 64.9 mm Hg and mean pH 7.20; after several hours of treatment, pH was normal and Pco 2 minimally reduced. [jamanetwork.com]
Because of improved technologies for respiratory support and effectiveness of early treatment with continuous positive airway pressure (CPAP), 1–3 nowadays many patients start CPAP as first-line treatment: 4 the rationale for this choice is the presence [academic.oup.com]
Vasodilators in the treatment of acute heart failure: what we know, what we dont. Heart failure Reviews. DOI 10.1007/s10741-008-9127-5 Weintraub NL et a l. [rcemlearning.co.uk]
These articles also describe treatment modalities that result in a marked improvement in the management of patients with CPE along with decreases in adverse outcomes and hospital length of stay. [journals.lww.com]
In these cases, dobutamine is usually first-line treatment. [ncbi.nlm.nih.gov]
Prognosis
Only small boluses of 2.5-5mg are recommended as opiates may cause hypotension and/or respiratory depression.(1) Prognosis & Followup strategies Cardiac failure has a very poor long term outcome and the prognosis can be worse than that of many cancers [rcemlearning.co.uk]
Long-term prognosis of acute pulmonary oedema--an ominous outcome. Eur J Heart Fail 2000; 2 :137-44. 10.1016/S1388-9842(00)00069-6 [ PubMed ] [ CrossRef ] [ Google Scholar ] 4. [ncbi.nlm.nih.gov]
Further research is needed to clarify whether preventing barrier injury instead of merely controlling hydrostatic pulmonary capillary pressures will improve the treatment and prognosis of AHF. CONFLICTS OF INTEREST None declared. [revespcardiol.org]
Etiology
TABLE 326-1 Etiologies of Cardiogenic Shock (CS) a and Cardiogenic Pulmonary Edema View Table Favorite Table Download (.pdf) TABLE 326-1 Etiologies of Cardiogenic Shock (CS) a and Cardiogenic Pulmonary Edema Etiologies of Cardiogenic Shock or Pulmonary [accessmedicine.mhmedical.com]
Epidemiology
Epidemiology of acute heart failure syndromes.. Heart Fail Rev., 12 (2007), pp. 91-95 [6] Cotter G, Metra M, Milo-Cotter O, Dittrich HC, Gheorghiade M.. [revespcardiol.org]
Pathophysiology
The pathophysiology of pulmonary edema and shock is discussed in Chaps. 47e and 324, respectively. FIGURE 326-1 Pathophysiology of cardiogenic shock. [accessmedicine.mhmedical.com]
Figure 2: Pathophysiology of CPO If the left ventricle is unable to empty the blood that it receives from the lungs, there is a consequent rise in the end diastolic volume and pressure. [rcemlearning.co.uk]
In conclusion, pulmonary congestion in AHF is a complex pathophysiologic process, beyond fluid overload and hemodynamics. [revespcardiol.org]
The subsequent increase in LVEF, after APE resolution, support a pathophysiologic role of the ventricular systolic insufficiency. [academic.oup.com]
Prevention
Preclinical studies in ARDS and sepsis suggest that preventing microvascular leak may represent a viable therapeutic approach to prevent or ameliorate organ dysfunction. The challenge is to now go further with carefully designed clinical trials. [oxfordmedicine.com]
Low levels of BNP ( [2] Prevention [ edit ] In those with underlying heart disease, effective control of congestive symptoms prevents pulmonary edema. [ citation needed ] Dexamethasone is in widespread use for the prevention of high altitude pulmonary [en.wikipedia.org]
Continuous Positive Airways Pressure (CPAP) provides a constant level of positive airways pressure preventing alveolar collapse. [rcemlearning.co.uk]
These results imply that in patients affected by APE blood pH is determined by the amount of respiratory compensation and that compensatory responses limit rather than prevent changes in pH (compensation is not synonymous with correction). 18 A judgement [academic.oup.com]
Further research is needed to clarify whether preventing barrier injury instead of merely controlling hydrostatic pulmonary capillary pressures will improve the treatment and prognosis of AHF. CONFLICTS OF INTEREST None declared. [revespcardiol.org]