4 research outputs found

    ΠŸΠ½Π΅Π²ΠΌΠΎΡ‚ΠΎΡ€Π°ΠΊΡ Ρƒ Π½ΠΎΠ²ΠΎΡ€ΠΎΠΆΠ΄Π΅Π½Π½Ρ‹Ρ… с ΠΌΡƒΠ»ΡŒΡ‚ΠΈΡΠΈΡΡ‚Π΅ΠΌΠ½Ρ‹ΠΌ Π²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ синдромом, ассоциированным с COVID-19: сСрия клиничСских наблюдСний

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    Currently, there is more and more data on new manifestations of COVID-19, such as multisystem inflammatory syndrome in children, which occurs with severe complications, among which cases of pneumothorax have been recorded. The article presents the experience of treating 4 newborns with a new coronovirus infection who were admitted to the clinic during 2021. In all clinical cases, children were born to mothers with a burdened obstetric history. All children had a positive RNA polymerase chain reaction for SARS-CoV-2. Children were admitted with signs of respiratory, cerebral insufficiency, gastrointestinal syndrome and metabolic disorders. The clinical picture and laboratory data corresponded to the definition of a multisystem inflammatory syndrome and was characterized not only by lung damage, but also by changes in other organs. Pneumothorax was diagnosed on days 1521. In all children, a tension pneumothorax developed on the right, in the first two cases against the background of mechanical ventilation, in the remaining two with spontaneous breathing with additional oxygenation. In one case, the pneumothorax was bilateral. Drainage of the pleural cavity in three children was carried out according to Bulau and in one case with active aspiration. Pneumothorax resolved after 414 days. Computed tomography of the chest, performed during the period of rehabilitation treatment, shows pronounced sclerotic and bullous changes in the lung parenchyma. All patients were discharged from the hospital in a satisfactory condition. Since in all the above cases, pneumothorax occurred in newborns with a burdened obstetric history of mothers, it is difficult to differentiate the occurrence of pneumothorax associated with the underlying disease, the course of labor, complications of therapy, from the disease associated with COVID-19. Stronger evidence is needed from larger datasets and rigorous analysis.Π’ настоящСС врСмя появляСтся всС большС Π΄Π°Π½Π½Ρ‹Ρ… ΠΎ Π½ΠΎΠ²Ρ‹Ρ… проявлСниях COVID-19, Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ ΠΌΡƒΠ»ΡŒΡ‚ΠΈΡΠΈΡΡ‚Π΅ΠΌΠ½Ρ‹ΠΉ Π²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ синдром Ρƒ Π΄Π΅Ρ‚Π΅ΠΉ, ΠΏΡ€ΠΎΡ‚Π΅ΠΊΠ°ΡŽΡ‰ΠΈΠΉ с тяТСлыми ослоТнСниями, срСди ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… зафиксированы случаи пнСвмоторакса. Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ прСдставлСн ΠΎΠΏΡ‹Ρ‚ лСчСния Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅Ρ… Π½ΠΎΠ²ΠΎΡ€ΠΎΠΆΠ΄Π΅Π½Π½Ρ‹Ρ… с Π½ΠΎΠ²ΠΎΠΉ короновирусной ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠ΅ΠΉ, ΠΏΠΎΡΡ‚ΡƒΠΏΠΈΠ²ΡˆΠΈΡ… Π² ΠΊΠ»ΠΈΠ½ΠΈΠΊΡƒ Π² Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ 2021 Π³. Π’ΠΎ всСх клиничСских Π½Π°Π±Π»ΡŽΠ΄Π΅Π½ΠΈΡΡ… Π΄Π΅Ρ‚ΠΈ Ρ€ΠΎΠ΄ΠΈΠ»ΠΈΡΡŒ ΠΎΡ‚ ΠΌΠ°Ρ‚Π΅Ρ€Π΅ΠΉ с отягощСнным Π°ΠΊΡƒΡˆΠ΅Ρ€ΡΠΊΠΈΠΌ Π°Π½Π°ΠΌΠ½Π΅Π·ΠΎΠΌ. Π£ всСх Π΄Π΅Ρ‚Π΅ΠΉ Π±Ρ‹Π»Π° ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ полимСразная цСпная рСакция РНК Π½Π° SARS-CoV-2. Π”Π΅Ρ‚ΠΈ поступили с ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠ°ΠΌΠΈ Π΄Ρ‹Ρ…Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ, Ρ†Π΅Ρ€Π΅Π±Ρ€Π°Π»ΡŒΠ½ΠΎΠΉ нСдостаточности, Π³Π°ΡΡ‚Ρ€ΠΎΠΈΠ½Ρ‚Π΅ΡΡ‚ΠΈΠ½Π°Π»ΡŒΠ½Ρ‹ΠΌ синдромом ΠΈ мСтаболичСскими Π½Π°Ρ€ΡƒΡˆΠ΅Π½ΠΈΡΠΌΠΈ. ΠšΠ»ΠΈΠ½ΠΈΡ‡Π΅ΡΠΊΠ°Ρ ΠΊΠ°Ρ€Ρ‚ΠΈΠ½Π° ΠΈ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹Π΅ Π΄Π°Π½Π½Ρ‹Π΅ соотвСтствовали ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΡŽ ΠΌΡƒΠ»ΡŒΡ‚ΠΈΡΠΈΡΡ‚Π΅ΠΌΠ½ΠΎΠ³ΠΎ Π²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ синдрома ΠΈ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΠΎΠ²Π°Π»Π°ΡΡŒ Π½Π΅ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ ΠΏΠΎΡ€Π°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ Π»Π΅Π³ΠΊΠΈΡ…, Π½ΠΎ ΠΈ измСнСниями со стороны Π΄Ρ€ΡƒΠ³ΠΈΡ… ΠΎΡ€Π³Π°Π½ΠΎΠ². ΠŸΠ½Π΅Π²ΠΌΠΎΡ‚ΠΎΡ€Π°ΠΊΡ диагностировали Π½Π° 1521-Π΅ сутки. Π£ всСх Π΄Π΅Ρ‚Π΅ΠΉ напряТСнный пнСвмоторакс развился справа, Π² ΠΏΠ΅Ρ€Π²Ρ‹Ρ… Π΄Π²ΡƒΡ… случаях Π½Π° Ρ„ΠΎΠ½Π΅ искусствСнной вСнтиляции Π»Π΅Π³ΠΊΠΈΡ…, Π² ΠΎΡΡ‚Π°Π»ΡŒΠ½Ρ‹Ρ… Π΄Π²ΡƒΡ… ΠΏΡ€ΠΈ спонтанном Π΄Ρ‹Ρ…Π°Π½ΠΈΠΈ с Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ оксигСнациСй. Π’ ΠΎΠ΄Π½ΠΎΠΌ наблюдСнии пнСвмоторакс Π±Ρ‹Π» двусторонним. Π”Ρ€Π΅Π½ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠ»Π΅Π²Ρ€Π°Π»ΡŒΠ½ΠΎΠΉ полости Ρƒ Ρ‚Ρ€ΠΎΠΈΡ… Π΄Π΅Ρ‚Π΅ΠΉ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΏΠΎ Π‘ΡŽΠ»Π°Ρƒ ΠΈ Π² ΠΎΠ΄Π½ΠΎΠΌ наблюдСнии с Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΠΉ аспирациСй. ΠŸΠ½Π΅Π²ΠΌΠΎΡ‚ΠΎΡ€Π°ΠΊΡ Ρ€Π°Π·Ρ€Π΅ΡˆΠ°Π»ΡΡ Ρ‡Π΅Ρ€Π΅Π· 414 сут. На ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ ΠΎΡ€Π³Π°Π½ΠΎΠ² Π³Ρ€ΡƒΠ΄Π½ΠΎΠΉ ΠΊΠ»Π΅Ρ‚ΠΊΠΈ, Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠΉ Π² ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ Ρ€Π΅Π°Π±ΠΈΠ»ΠΈΡ‚Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ лСчСния, ΠΎΡ‚ΠΌΠ΅Ρ‡Π°ΡŽΡ‚ΡΡ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½Ρ‹Π΅ склСротичСскиС ΠΈ Π±ΡƒΠ»Π»Π΅Π·Π½Ρ‹Π΅ измСнСния ΠΏΠ°Ρ€Π΅Π½Ρ…ΠΈΠΌΡ‹ Π»Π΅Π³ΠΊΠΈΡ…. ВсС ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Ρ‹ выписаны ΠΈΠ· стационара Π² ΡƒΠ΄ΠΎΠ²Π»Π΅Ρ‚Π²ΠΎΡ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌ состоянии. ΠŸΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ Π²ΠΎ всСх ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… Π½Π°Π±Π»ΡŽΠ΄Π΅Π½ΠΈΡΡ… пнСвмоторакс Π²ΠΎΠ·Π½ΠΈΠΊ Ρƒ Π½ΠΎΠ²ΠΎΡ€ΠΎΠΆΠ΄Π΅Π½Π½Ρ‹Ρ… с отягощСнным Π°ΠΊΡƒΡˆΠ΅Ρ€ΡΠΊΠΈΠΌ Π°Π½Π°ΠΌΠ½Π΅Π·ΠΎΠΌ ΠΌΠ°Ρ‚Π΅Ρ€Π΅ΠΉ, Ρ‚Ρ€ΡƒΠ΄Π½ΠΎ Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΠ΅ пнСвмоторакса, связанного с основным Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ΠΌ, Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ΠΌ Ρ€ΠΎΠ΄ΠΎΠ², ослоТнСниями Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ, ΠΎΡ‚ заболСвания, связанного с COVID-19. НСобходимы Π±ΠΎΠ»Π΅Π΅ ΡƒΠ±Π΅Π΄ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ Π΄ΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΡŒΡΡ‚Π²Π° ΠΈΠ· ΠΊΡ€ΡƒΠΏΠ½Ρ‹Ρ… массивов Π΄Π°Π½Π½Ρ‹Ρ… с ΠΈΡ… Ρ‚Ρ‰Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ

    Cross-validation strategies in QSPR modelling of chemical reactions

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    In this article, we consider cross-validation of the quantitative structure-property relationship models for reactions and show that the conventional k-fold cross-validation (CV) procedure gives an β€˜optimistically’ biased assessment of prediction performance. To address this issue, we suggest two strategies of model cross-validation, β€˜transformation-out’ CV, and β€˜solvent-out’ CV. Unlike the conventional k-fold cross-validation approach that does not consider the nature of objects, the proposed procedures provide an unbiased estimation of the predictive performance of the models for novel types of structural transformations in chemical reactions and reactions going under new conditions. Both the suggested strategies have been applied to predict the rate constants of bimolecular elimination and nucleophilic substitution reactions, and Diels-Alder cycloaddition. All suggested cross-validation methodologies and tutorial are implemented in the open-source software package CIMtools (https://github.com/cimm-kzn/CIMtools)
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