A Markov Chain Model for Medical Record Analysis

Liu, Chih-Ming; Wang, Kuo-Ming; Guh, Yuh-Yuan

doi:10.1038/sj/jors/0420502

Cited by 2 publications

(3 citation statements)

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“…The aim was to develop an algorithm to describe the sequence of possible events where the probability of each event depends on the state reached in the previous event. [6][7][8] The process starts at one state and moves to another state with a calculated probability, called the transition probability. The latent states were defined by the data monitoring and steering committee to be as clinically relevant as possible.…”

Section: Discussionmentioning

confidence: 99%

“…A Markov chain was built to describe the evolution of the patients hospitalized for a PCBI. The aim was to develop an algorithm to describe the sequence of possible events where the probability of each event depends on the state reached in the previous event 6–8 . The process starts at one state and moves to another state with a calculated probability, called the transition probability.…”

Section: Methodsmentioning

confidence: 99%

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Surgical exploration for stable patients with penetrating cardiac box injuries: When and how? A cohort of 155 patients from Marseille area

Vasse

Belaroussi

Avaro

et al. 2022

J Trauma Acute Care Surg

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BACKGROUND:The management of penetrating thoracic injuries in moribund or unstable patients is clearly described in contrast to that of stable patients, particularly for those with a cardiac box injury. This anatomic location suggests a potentially lethal cardiac injury and requires urgent therapeutic decision making. The present study aims at determining when surgical exploration is beneficial for stable patients presenting with penetrating cardiac box injuries (PCBIs). METHODS:This was a retrospective study of stable civilian patients with PCBI referred to level I trauma centers in the Marseille area between January 2009 and December 2019. Using post hoc analysis of the management outcomes, patients whose surgery was considered therapeutic (group A) were compared with those whose surgery was considered nontherapeutic and with nonoperated patients (group B). RESULTS:A total of 155 patients with PCBI were included, with 88% (n = 137) of stab wound injuries. Overall, surgical exploration was performed in 54% (n = 83), considered therapeutic in 71% (n = 59), and performed by video-assisted thoracoscopy surgery in 42% (n = 35) with a conversion rates of 14% (n = 5). Initial extended fast assessment with sonography for trauma revealed the presence of hemopericardium in 29% (n = 29) in group A versus 9.5% (n = 7) in group B, p = 0.010, and was associated with a negative predictive value of 93% regarding the presence of a cardiac injury. Chest tube flow was significantly higher in patients who required surgery, with a median (interquartile range) of 600.00 (350.00-1200.00) mL versus 300.0 (150.00-400.00) mL ( p = 0.001). CONCLUSION:Extended fast assessment with sonography for trauma and chest tube flow are the cornerstones of the management of stable PCBI. Video-assisted thoracoscopy represents an interesting approach to check intrathoracic wounds while minimizing surgical morbidity.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Surgical exploration for stable patients with penetrating cardiac box injuries: When and how? A cohort of 155 patients from Marseille area

Vasse

Belaroussi

Avaro

et al. 2022

J Trauma Acute Care Surg

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“…Liu et al [6] used a Markov model to discuss the status of patients' visiting hospitals; Smith and Lawrence [7] adopted a Markov model to study maturing loans; Smith et al [8] applied a Markov model to forecast the risk management ability of ® nancial organizations; Liu and Wang [9] pointed out that a Markov model can provide a reliable system for improving information. The hierarchical transfer of ocean deck o cers in Taiwan is a transfer procedure from one hierarchical level to another, and this transfer has a transition probability.…”

Section: Literature Reviewmentioning

confidence: 99%

Manpower supply and demand of ocean deck officers in Taiwan

Lin

Chiang

2001

Marit. Pol. Mgmt.

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This study adopted a 5-year moving average to calculate the transition probability of deck o cers in Taiwan from 1993± 1998 at diOE erent levels in the hierarchy. An absorbing Markov transition matrix was also constructed to forecast the terms of seniority and the annual supply of deck o cers. In addition, this work applied the GM (1,1) model of Grey theory to forecast the annual demand of deck o cers, and used cross analysis to investigate the manpower supply and demand of ocean deck o cers in Taiwan. Results in this study can provide a valuable reference for pertinent authorities when determining the manpower policy of shipping companies in Taiwan.

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A Markov Chain Model for Medical Record Analysis

Cited by 2 publications

References 0 publications

Surgical exploration for stable patients with penetrating cardiac box injuries: When and how? A cohort of 155 patients from Marseille area

Surgical exploration for stable patients with penetrating cardiac box injuries: When and how? A cohort of 155 patients from Marseille area

Manpower supply and demand of ocean deck officers in Taiwan

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