Comparative measurements of cutaneous and arterial pCO2 in patients with low cardiac output on an intensive care unit for internal medicine

1981 ◽  
Vol 7 (5) ◽  
pp. 258-259 ◽  
Author(s):  
F. Vogel ◽  
S. Heer ◽  
N. Spannbrucker
2019 ◽  
Vol 39 (2) ◽  
pp. e1-e7 ◽  
Author(s):  
Matthew J. Nordness ◽  
Ashly C. Westrick ◽  
Heidi Chen ◽  
Mark A. Clay

BACKGROUND Low cardiac output syndrome is a transient constellation of signs and symptoms that indicate the heart’s inability to supply sufficient oxygen to tissues and end-organs to meet metabolic demand. Because the term lacks a standard clinical definition, the bedside diagnosis of this syndrome can be difficult. OBJECTIVE To evaluate concordance among pediatric cardiac intensive care unit nurses in their identification of low cardiac output syndrome in pediatric patients after cardiac surgery. METHODS An anonymous survey was distributed to 69 pediatric cardiac intensive care unit nurses. The survey described 10 randomly selected patients aged 6 months or younger who had undergone corrective or palliative cardiac surgery at a freestanding children’s hospital in a tertiary academic center. For each patient, data were presented corresponding to 5 time points (0, 6, 12, 18, and 24 hours postoperatively). The respondent was asked to indicate whether the patient had low cardiac output syndrome (yes or no) at each time point on the basis of the data presented. RESULTS The response rate was 46% (32 of 69 nurses). The overall Fleiss k value was 0.30, indicating fair agreement among raters. When the results were analyzed by years of experience, agreement remained only slight to fair. CONCLUSIONS Regardless of years of experience, nurses have difficulty agreeing on the presence of low cardiac output syndrome. Further research is needed to determine whether the development of objective guidelines could improve recognition and facilitate communication between the pediatric cardiac intensive care unit nurse and the medical team.


2019 ◽  
Vol 13 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Walter Spagnolli ◽  
Dimitri Peterlana ◽  
Stefania Dorigoni ◽  
Marta Rigoni ◽  
Emanuele Torri ◽  
...  

In large acute medical wards treating heterogenous and complex patients, intensity of patient care should be graduated according to clinical severity. We conducted a retrospective observational study on all unselected admissions (8838) to the internal medicine ward of the Santa Chiara Hospital of Trento from 2012 to 2017. During 2012 and 2013, a standard organizational model (SMC) was in place, while an organizational model for intensity of medical care (IMC) was introduced in 2014. In SMC, patient admission was performed according to bed availability only. In IMC, patients were allocated to three different ward settings (high, medium and post-acute care) based on the stratification of clinical instability. The National Early Warning Score (NEWS) was used for the stratification, together with the clinical judgment. The implementation of the IMC model led to a decrease of mortality and urgent transfers for clinical deterioration to Intensive Care Unit and to an increase of admissions from Intensive Care Unit and from regional spoke hospitals. Redesigning delivery processes based on IMC can play a pivotal role in improving patient outcomes and bed management.


Author(s):  
Sofie A Gevaert ◽  
Eric Hoste ◽  
John A Kellum

Acute kidney injury is a serious condition, occurring in up to two-thirds of intensive care unit patients, and 8.8-55% of patients with acute cardiac conditions. Renal replacement therapy is used in about 1.5-15% of intensive care unit patients. The term cardiorenal syndrome refers to combined heart and kidney failure; three types of acute cardiorenal syndrome have been described: acute cardiorenal syndrome or cardiorenal syndrome type 1, acute renocardiac syndrome or cardiorenal syndrome type 3, and acute cardiorenal syndrome type 5 (cardiac and renal injury secondary to a third entity such as sepsis). Acute kidney injury replaced the previously used term 'acute renal failure' and comprises the entire spectrum of the disease, from small changes in function to the requirement of renal replacement therapy. Not only failure, but also minor and less severe decreases, in kidney function are of clinical significance both in the short and long-term. The most recent definition for acute kidney injury is proposed by the Kidney Disease: Improving Global Outcomes clinical practice guidelines workgroup. This definition is a modification of the RIFLE and AKIN definitions and staging criteria, and it stages patients according to changes in the urine output and serum creatinine (see Tables 68.1 and 68.2). Acute kidney injury is a heterogeneous syndrome with different and multiple aetiologies, often with several insults occurring in the same individual. The underlying processes include nephrotoxicity, and neurohormonal, haemodynamic, autoimmune, and inflammatory abnormalities. The most frequent cause for acute kidney injury in intensive cardiac care patients are low cardiac output with an impaired kidney perfusion (cardiogenic shock) and/or a marked increase in venous pressure (acute decompensated heart failure). Predictors for acute kidney injury in these patients include: baseline renal dysfunction, diabetes, anaemia, and hypertension, as well as the administration of high doses of diuretics. In the intensive cardiac care unit, attention must be paid to the prevention of acute kidney injury: monitoring of high-risk patients, prompt resuscitation, maintenance of an adequate mean arterial pressure, cardiac output, and intravascular volume (avoidance of both fluid overload and hypovolaemia), as well as the avoidance or protection against nephrotoxic agents. The treatment of acute kidney injury focuses on the treatment of the underlying aetiology, supportive care, and avoiding further injury from nephrotoxic agents. More specific therapies have not yet demonstrated efficacy. Renal replacement therapy is indicated in life-threatening changes in fluid, electrolyte, and acid-base balance, but there are also arguments for more early initiation.


2006 ◽  
Vol 17 (4) ◽  
pp. 435-445
Author(s):  
Tom Ahrens

Hemodynamics in sepsis change as sepsis develops. Initial hemodynamics of sepsis often are much different from later stages of sepsis, shifting from low cardiac output states to high cardiac output states. Tissue oxygenation also changes with initial mixed venous oxyhemoglobin (Svo2) or central venous oxyhemoglobin (Scvo2) levels below normal, with later stages reflecting high values. These changes occur as sepsis progresses, producing a marked disturbance in capillary flow and tissue oxygenation. Treatments for these changes in sepsis are different, making the identification of the hemodynamic state essential to optimally treat the patient. Fortunately, hemodynamic monitoring techniques are markedly improved from older techniques such as the pulmonary artery catheter. With noninvasive techniques such as esophageal and external Doppler for measuring hemodynamics, clinicians beyond the intensive care unit can make hemodynamic assessments that were not possible until just recently. This improved assessment should make it much easier to properly identify sepsis and initiate appropriate treatments in a timely manner.


2019 ◽  
Vol 12 ◽  
pp. 117863881882029
Author(s):  
Sultan Mahmood ◽  
Leah Hoffman ◽  
Ijlal Akbar Ali ◽  
Yan D Zhao ◽  
Allshine Chen ◽  
...  

Background: Resident physicians are frequently uncomfortable ordering enteral nutrition (EN) and are unaware of the variety of formulas and supplements available for different disease processes. Many depend on a clinical dietician to assist with recommending EN formulas and patient energy requirements that may not be readily available on patient admission. This creates a barrier to early initiation of EN and non-compliance with Society of Critical Care Medicine and American Society of Parenteral and Enteral Nutrition clinical guidelines. Objective: Internal medicine resident physicians were provided an iPod with a smart phone/device application (EN application) to assist them in choosing EN formulas for patients during their intensive care unit (ICU) rotation. The primary outcome was improved initiation of EN within 24 hours of admission. Secondary outcomes included the following: time to initiate EN, goal calories reached, infections rates, length of stay, mortality, and concordance with clinical guidelines. Design: The study is a quasi-experimental design to improve delivery of EN at an academic medical center in the medical ICU. Data were collected from a retrospective chart review to evaluate the impact of an EN application to assist resident physicians when ordering EN. Results: Use of the EN application reduced the percent of patients with delayed initiation of EN from 61.2% prior to 37.5% ( P < .01). The mean time to initiate EN also improved 44.5 vs 31.9 hours ( P < .01). Patients were also more likely to achieve their daily caloric goal ( P < .01). Conclusion: The use of an EN application to assist internal medicine residents when ordering EN reduced delays in initiation of EN and improved overall delivery of EN to medical ICU patients.


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