Assignment: What is the difference between Obstructive shock and cardiogenic shock
Assignment: What is the difference between Obstructive shock and cardiogenic shock
What is the difference between Obstructive shock and cardiogenic shock
what are the Treatments
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Difference between Obstructive and Cardiogenic Shock
Shock is one of the leading causes of mortality worldwide. Cardiogenic shock refers to impaired cardiac functions caused by impaired myocardial contractility, abnormal cardiac rhythm and cardiac structural disorders that can lead to end organ hypo perfusion, hypoxia, hypotension, systemic vasoconstriction and reduced cardiac output(Vahdatpour et al., 2019).Patients with cardiogenic shock usually present with rapid breathing, severe dyspnea, tachycardia, reduced levels of consciousness, cold extremities, sweating, reduced urination, pale skin and a weak pulse. More than 75% of cardiogenic shock cases are as a result of myocardial infarction. Others are due to drugs and aortic regurgitation among other causes.
Obstructive shock on the other hand is caused by impaired diastolic filling. It is mostly caused by disorders of diastolic filling such as tension pneumothorax and car4diac tamponade, obstruction in the pulmonary circulation and obstruction in aortic circulation(Zotzmann et al., 2022).The presentation of obstructive shock does not differ much from that of cardiogenic shock
Treatment
Fluid therapy, vasopressors, inotropes, mechanical ventilation and extracorporeal membrane oxygenation (ECMO) come in handy while managing obstructive shock. Specific management of the etiology of the shock should also be carried out e.g. pulmonary artery dissection in pulmonary embolism and needle decompression in tension pneumothorax(Zotzmann et al., 2022). Just like in obstructive shock, fluid therapy, vasopressors such as epinephrine, oxygen therapy and ventilation are also useful in cardiogenic shock. Vasoactive agents such as nitric oxide are also useful. Approximately 25% of patients with cardiogenic shock will require renal replacement therapy since they get acute kidney injury.
References
Vahdatpour, C., Collins, D., & Goldberg, S. (2019). Cardiogenic Shock. Journal of the American Heart Association, 8(8), e011991. https://doi.org/10.1161/JAHA.119.011991
Zotzmann, V., Rottmann, F. A., Müller-Pelzer, K., Bode, C., Wengenmayer, T., & Staudacher, D. L. (2022). Obstructive Shock, from Diagnosis to Treatment. Reviews in Cardiovascular Medicine, 23(7), 248. https://doi.org/10.31083/j.rcm2307248