scholarly journals Survival prediction of patients with sepsis from age, sex, and septic episode number alone

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Davide Chicco ◽  
Giuseppe Jurman

Abstract Sepsis is a life-threatening condition caused by an exaggerated reaction of the body to an infection, that leads to organ failure or even death. Since sepsis can kill a patient even in just one hour, survival prediction is an urgent priority among the medical community: even if laboratory tests and hospital analyses can provide insightful information about the patient, in fact, they might not come in time to allow medical doctors to recognize an immediate death risk and treat it properly. In this context, machine learning can be useful to predict survival of patients within minutes, especially when applied to few medical features easily retrievable. In this study, we show that it is possible to achieve this goal by applying computational intelligence algorithms to three features of patients with sepsis, recorded at hospital admission: sex, age, and septic episode number. We applied several data mining methods to a cohort of 110,204 admissions of patients, and obtained high prediction scores both on this complete dataset (top precision-recall area under the curve PR AUC = 0.966) and on its subset related to the recent Sepsis-3 definition (top PR AUC = 0.860). Additionally, we tested our models on an external validation cohort of 137 patients, and achieved good results in this case too (top PR AUC = 0.863), confirming the generalizability of our approach. Our results can have a huge impact on clinical settings, allowing physicians to forecast the survival of patients by sex, age, and septic episode number alone.

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuxin Ding ◽  
Runyi Jiang ◽  
Yuhong Chen ◽  
Jing Jing ◽  
Xiaoshuang Yang ◽  
...  

Abstract Background Previous studies reported cutaneous melanoma in head and neck (HNM) differed from those in other regions (body melanoma, BM). Individualized tools to predict the survival of patients with HNM or BM remain insufficient. We aimed at comparing the characteristics of HNM and BM, developing and validating nomograms for predicting the survival of patients with HNM or BM. Methods The information of patients with HNM or BM from 2004 to 2015 was obtained from the Surveillance, Epidemiology, and End Results (SEER) database. The HNM group and BM group were randomly divided into training and validation cohorts. We used the Kaplan-Meier method and multivariate Cox models to identify independent prognostic factors. Nomograms were developed via the rms and dynnom packages, and were measured by the concordance index (C-index), the area under the curve (AUC) of the receiver operating characteristic (ROC) curve and calibration plots. Results Of 70,605 patients acquired, 21% had HNM and 79% had BM. The HNM group contained more older patients, male sex and lentigo maligna melanoma, and more frequently had thicker tumors and metastases than the BM group. The 5-year cancer-specific survival (CSS) and overall survival (OS) rates were 88.1 ± 0.3% and 74.4 ± 0.4% in the HNM group and 92.5 ± 0.1% and 85.8 ± 0.2% in the BM group, respectively. Eight variables (age, sex, histology, thickness, ulceration, stage, metastases, and surgery) were identified to construct nomograms of CSS and OS for patients with HNM or BM. Additionally, four dynamic nomograms were available on web. The internal and external validation of each nomogram showed high C-index values (0.785–0.896) and AUC values (0.81–0.925), and the calibration plots showed great consistency. Conclusions The characteristics of HNM and BM are heterogeneous. We constructed and validated four nomograms for predicting the 3-, 5- and 10-year CSS and OS probabilities of patients with HNM or BM. These nomograms can serve as practical clinical tools for survival prediction and individual health management.


2014 ◽  
Vol 20 (1) ◽  
pp. 35-39
Author(s):  
Cambrea Simona Claudia ◽  
Ilie Maria Margareta ◽  
Carp Dalia Sorina ◽  
Ionescu C.

ABSTRACT Necrotizing fasciitis is a life threatening condition that can be quickly spread through the flesh surrounding the muscle. The disease can be polymicrobial, or caused by group A beta hemolytic Streptococci, or by Clostridium spp. We present a case of a 7 years old girl, which was hospitalized in Children Infectious Diseases Department in a 7th day of chickenpox (hematic crusts all over the body), high fever, asthenia, vomiting, oligoanuria, and tumefaction, pain and functio lessa in the right thigh. In a very short time in the right thigh swelling, edema and congestion have increased gradually, and in the third highest middle thigh the ecchymotic areas appeared evolving towards bubbles and blisters which included the right thigh and calf. After excluding the diagnosis of thrombophlebitis was raised suspicion of necrotizing fasciitis. CT pelvic scan evidenced pelvic asymmetry by maximus and medium right gluteal muscles swelling with important inflammatory infiltrate extended laterally in the subcutaneous adipose tissue. In blood culture was isolated Eggerthella lenta, and from throat swab was isolated group A Streptococci. Treatment consists of a combination of antibiotics associated with intravenous immunoglobulin administration. Despite medical treatment evolution worsened and required transfer in a pediatric surgery department where emergent surgical debridement associated with intensive antibiotic therapy was done. After this intervention evolution was slowly favorable without major limb dysfunction. Polymicrobial necrotizing fasciitis is a severe disease, which if recognized early can have a favorable outcome.


Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1242 ◽  
Author(s):  
Szymon Tomczak ◽  
Maciej Stawny ◽  
Katarzyna Dettlaff ◽  
Maria Kieliszek ◽  
Daria Słomińska ◽  
...  

Patients referred to intensive care units (ICU) require special care due to their life-threatening condition, diseases and, frequently, malnutrition. Critically ill patients manifest a range of typical physiological changes caused by predominantly catabolic reactions in the body. It is necessary to provide the patients with proper nutrition, for example by administering total parenteral nutrition (TPN). The addition of linezolid to TPN mixtures for patients treated for linezolid-sensitive infections may reduce the extent of vascular access handling, resulting in a diminished risk of unwanted catheter-related infections. The compatibility and stability studies were conducted of linezolid in parenteral nutrition mixtures of basic, high- and low-electrolytic, high- and low-energetic and immunomodulatory composition. Mixtures containing linezolid were stored at 4–6 °C and 25 °C with light protection and at 25 °C without light protection for 168 h. In order to evaluate changes in the concentration of linezolid a previously validated reversed-phase HPLC method with UV detection was used. It was found that linezolid was stable at 4–6 °C in the whole course of the study whereas at 25 °C it proved stable over a period of 24 h required for administration of parenteral nutrition mixtures. The TPN mixtures demonstrated compatibility with linezolid and suitable stability, which were not affected by time or storage conditions.


2021 ◽  
pp. 002580242098670
Author(s):  
Marianna Russo ◽  
Matteo Bolcato ◽  
Anna Aprile

While gastro-oesophageal varices commonly complicate portal hypertension and may be a life-threatening condition, fatal haemorrhaging from cirrhosis-related caput medusae has seldom been described in the scientific literature. This article documents a rare death due to the rupture of a varix in the umbilical area. This case raises a number of points for medico-legal discussion, such as the negative consequences of an erroneous cause of death in evaluating medical malpractice cases and the importance of a thorough external examination of the body in order to ensure this type of vascular lesion is not overlooked.


2020 ◽  
Vol 58 (229) ◽  
Author(s):  
Ayushma Acharya ◽  
Shreedhar Prasad Acharya ◽  
Tulsi Bhattarai

Steven Johnson syndrome and toxic epidermal necrolysis are severe and rare adverse drug reactions usually caused by drugs like antiepileptics, penicillin and allopurinol and sometimes also due to infections, malignancy or idiopathic in some cases. Here we are reporting a case of a 50 years female who came with complaint of a burning sensation on the upper half of the body with atypical flat target lesion that later coalesced involving her face, chest and bilateral upper limbs. On examination, positive nikolsky sign and tenderness with <10% body surface area involvement was noticed. The diagnosis of cotrimoxazole induced Steven Johnson syndrome was made. Patient was shifted to ICU and given supportive care along with prophylactic teicoplanin, itraconazole and dexamethasone. The mechanism of eruptions in our patient was due to cotrimoxazole. Cotrimoxazole induced Steven Johnson syndrome is rare and the supportive management with broad spectrum antibiotic and the corticosteroid was enough to beat this life-threatening condition.


2020 ◽  
Vol 7 (2) ◽  
pp. 599
Author(s):  
M. Sabari Girieasen ◽  
Naveenkumar Viswanathan ◽  
M/ S. Kalyankumar

Varicella gangrenosum is a gangrenous ulceration of varicella lesions involving the skin and soft tissues of the body. It most commonly occurs in children less than 5 years of age and life threatening. This is a very rare complication of chicken pox in adults which deserves early diagnosis and management. 21-year-old male presented with blackish discoloration in the lateral aspect of right thigh for 5 days. He has positive history of chicken pox for his brother and sister following which he acquired it 15 days back. During that episode he had fever, headache and blisters which ruptured to heal by scab. But scab in right thigh coalesced to form the gangrenous area with serous discharge. On presentation he had no fever with local lesion and surrounding erythema. Patient underwent radical surgical debridement and regular dressing. Pus culture was sent which showed no growth. He gradually improved and the ulcer granulated well and split skin graft is done. Varicella gangrenosum is a life-threatening condition which can be either wet, moist or purpura fulminans. Patients who develop disseminated intravascular coagulation and have a grave prognosis. Surgical debridement is the only proven treatment which has led to better outcome. Only about 10 cases reported in literature so far regarding this condition. 


Medicina ◽  
2020 ◽  
Vol 56 (5) ◽  
pp. 240
Author(s):  
Ben Atterton ◽  
Maria Carolina Paulino ◽  
Pedro Povoa ◽  
Ignacio Martin-Loeches

Sepsis is a potentially life-threatening condition caused by a systemic dysregulated host response to infection. The brain is particularly susceptible to the effects of sepsis with clinical manifestations ranging from mild confusion to a deep comatose state. Sepsis-associated delirium (SAD) is a cerebral manifestation commonly occurring in patients with sepsis and is thought to occur due to a combination of neuroinflammation and disturbances in cerebral perfusion, the blood brain barrier (BBB) and neurotransmission. The neurological impairment associated with SAD can persist for months or even longer, after the initial septic episode has subsided which may impair the rehabilitation potential of sepsis survivors. Early identification and treatment of the underlying sepsis is key in the management of SAD as once present it can be difficult to control. Through the regular use of validated screening tools for delirium, cases of SAD can be identified early; this allows potentially aggravating factors to be addressed promptly. The usefulness of biomarkers, neuroimaging and electroencephalopathy (EEG) in the diagnosis of SAD remains controversial. The Society of Critical Care Medicine (SCCM) guidelines advise against the use of medications to treat delirium unless distressing symptoms are present or it is hindering the patient’s ability to wean from organ support.


2020 ◽  
Author(s):  
Laura Cosmai ◽  
Camillo Porta ◽  
Marina Foramitti ◽  
Valentina Perrone ◽  
Ludovica Mollica ◽  
...  

Abstract Acute kidney injury (AKI) is a common complication of cancer that occurs in up to 50% of neoplastic patients during the natural history of their disease; furthermore, it has a huge impact on key outcomes such as overall prognosis, length of hospitalization and costs. AKI in cancer patients has different causes, either patient-, tumour- or treatment-related. Patient-related risk factors for AKI are the same as in the general population, whereas tumour-related risk factors are represented by compression, obstruction, direct kidney infiltration from the tumour as well by precipitation, aggregation, crystallization or misfolding of paraprotein (as in the case of multiple myeloma). Finally, treatment-related risk factors are the most common observed in clinical practice and may present also with the feature of tumour lysis syndrome or thrombotic microangiopathies. In the absence of validated biomarkers, a multidisciplinary clinical approach that incorporates adequate assessment, use of appropriate preventive measures and early intervention is essential to reduce the incidence of this life-threatening condition in cancer patients.


Cells ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1544 ◽  
Author(s):  
Jesús Beltrán-García ◽  
Rebeca Osca-Verdegal ◽  
Elena Nacher-Sendra ◽  
Federico V. Pallardó ◽  
José Luis García-Giménez

Sepsis is a life-threatening condition that occurs when the body responds to an infection that damages it is own tissues. The major problem in sepsis is rapid, vital status deterioration in patients, which can progress to septic shock with multiple organ failure if not properly treated. As there are no specific treatments, early diagnosis is mandatory to reduce high mortality. Despite more than 170 different biomarkers being postulated, early sepsis diagnosis and prognosis remain a challenge for clinicians. Recent findings propose that circular RNAs (circRNAs) may play a prominent role in regulating the patients’ immune system against different pathogens, including bacteria and viruses. Mounting evidence also suggests that the misregulation of circRNAs is an early event in a wide range of diseases, including sepsis. Despite circRNA levels being altered in sepsis, the specific mechanisms controlling the dysregulation of these noncoding RNAs are not completely elucidated, although many factors are known to affect circRNA biogenesis. Therefore, there is a need to explore the molecular pathways that lead to this disorder. This review describes the role of this new class of regulatory RNAs in sepsis and the feasibility of using circRNAs as diagnostic biomarkers for sepsis, opening up new avenues for circRNA-based medicine.


VASA ◽  
2019 ◽  
Vol 48 (5) ◽  
pp. 381-388 ◽  
Author(s):  
Katalin Mako ◽  
Attila Puskas

Summary. Iliac vein compression syndrome (May-Thurner syndrome – MTS) is an anatomically variable clinical condition in which the left common iliac vein is compressed between the right common iliac artery and the underlying spine. This anatomic variant results in an increased incidence of left iliac or iliofemoral vein thrombosis. It predominantly affects young women in the second or third decades of life with preponderance during pregnancy or oral contraceptive use. Although MTS is rare, its true prevalence is underestimated but it can be a life-threatening condition due to development of pulmonary embolism (PE). In this case based review the authors present three cases of MTS. All patients had been previously confirmed with PE, but despite they were admitted to hospital, diagnosed and correctly treated for PE and investigated for thrombophilia, the iliac vein compression syndrome was not suspected or investigated. With this presentation the authors would like to emphasize that MTS is mostly underdiagnosed, and it needs to be ruled out in left iliofemoral vein thrombosis in young individuals.


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