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1.
J Infect Dev Ctries ; 15(10): 1404-1407, 2021 10 31.
Article in English | MEDLINE | ID: covidwho-1518655

ABSTRACT

INTRODUCTION: Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) affects mainly the lungs causing pneumonia and complications like acute respiratory distress syndrome. Pneumothorax is a rare manifestation of the disease. This report is a description of a series of patients with COVID-19 and spontaneous pneumothorax, some of them with associated pulmonary cysts. METHODOLOGY: Cases were collected retrospectively. We included clinical data from medical records and described radiologic findings. Patients that developed pneumothorax during mechanical ventilation were excluded. RESULTS: Ten cases were included in this report, nine of them were male. The median age of our series was 62 years (IQR = 57-68). The median days since the onset of symptoms until the development of pneumothorax was 27 (IQR = 17-31), most cases developed after the second week of the diagnosis of pneumonia. Two cases required invasive mechanical ventilation, but pneumothorax occurred after ventilator weaning. Three cases showed subpleural pulmonary cysts. CONCLUSIONS: Cysts and pneumothorax are rare manifestations of SARS-CoV-2 pneumonia with mechanisms not completely understood. This report highlights the role of CT scan in diagnosis of COVID-19 complications.


Subject(s)
COVID-19/complications , Cysts/etiology , Lung/pathology , Pneumothorax/etiology , Aged , COVID-19/diagnostic imaging , COVID-19/epidemiology , Colombia/epidemiology , Cysts/diagnostic imaging , Cysts/epidemiology , Cysts/virology , Female , Humans , Lung/diagnostic imaging , Lung/virology , Male , Middle Aged , Pneumothorax/diagnostic imaging , Pneumothorax/epidemiology , Retrospective Studies , SARS-CoV-2/pathogenicity , Tomography, X-Ray Computed
2.
Avian Dis ; 64(2): 149-156, 2020 06.
Article in English | MEDLINE | ID: covidwho-892406

ABSTRACT

Infection of the oviduct by an infectious bronchitis virus (IBV) in laying hens has been associated with the false layer syndrome. Because the diagnostic procedure for the detection of cystic oviducts by postmortem examinations in IBV-positive replacement pullet flocks could involve the unnecessary sacrifice of numerous healthy pullets without reproductive tract anomalies, the development of a noninvasive and nonlethal diagnostic procedure would be desirable. The first objective of the study was to evaluate the diagnostic accuracy of a transcutaneous ultrasonography method to predict the presence of cystic oviducts compared to postmortem examinations in a commercial pullet flock positive for an IBV genotype Delmarva (DMV) variant. The second objective was to evaluate the performance of the same ultrasonography method to later detect false layers in the same flock in sexually mature hens by identifying the presence of an egg in the oviduct due to the presence of atretic oviducts undetectable by ultrasonography and the absence of cystic oviducts at that age. In replacement pullets, the sensitivity (Se) and specificity (Sp) of the ultrasonography (index test) compared to the postmortem examination (reference standard test) were 73% and 91%, respectively. The positive predictive value (PPV) and negative predictive value (NPV) were 67% and 93%. The ultrasonography technique showed a positive likelihood ratio (LR+) of 7.82 and a negative likelihood ratio (LR-) of 0.30. In sexually mature hens, the Se, Sp, PPV, and NPV of the ultrasonography compared to the laying status were 98%. The LR+ was 49.00 and the LR- was 0.02 when compared to the laying status. In conclusion, the ultrasonography could replace postmortem examinations to detect cystic oviducts in commercial flocks of replacement pullets previously infected with an IBV-DMV 1639 variant. Although the test accuracy of ultrasonography was excellent for the hens at production peak to identify laying and nonlaying hens based on the presence of an egg in the reproductive tract, its practicality was limited due to atretic oviducts being not detectable.


Precisión diagnóstica de la ultrasonografía para detectar gallinas falsas ponedoras en una parvada comercial infectada por un virus de la bronquitis infecciosa genotipo Delmarva que causa oviductos quísticos. La infección del oviducto por el virus de bronquitis infecciosa (IBV) en gallinas de postura se ha asociado con el síndrome de la falsa ponedora. Debido a que el procedimiento de diagnóstico para la detección de oviductos quísticos mediante exámenes post mortem en parvadas de pollitas de reemplazo positivas para bronquitis infecciosa podría involucrar el sacrificio innecesario de numerosas pollitas sanas sin anomalías del tracto reproductivo, por lo tanto es deseable el desarrollo de un procedimiento de diagnóstico no invasivo y no letal. El primer objetivo del estudio fue evaluar la precisión diagnóstica de un método de ultrasonografía transcutánea para predecir la presencia de oviductos quísticos en comparación con los exámenes post mortem en un lote comercial de pollitas que resultó positivo para una variante del genotipo Delmarva (DMV) del virus de la bronquitos infecciosa. El segundo objetivo fue evaluar el desempeño del mismo método de ultrasonografía para detectar posteriormente gallinas falsas en la misma parvada en las gallinas sexualmente maduras mediante la identificación de la presencia de un huevo en el oviducto debido a la presencia de oviductos atrésicos indetectables por ultrasonografía y la ausencia de oviductos quísticos a esa edad. En las pollitas de reemplazo, la sensibilidad (Se) y la especificidad (Sp) de la ultrasonografía (prueba de índice) en comparación con el examen post mortem (prueba estándar de referencia) fueron de 73% y 91%, respectivamente. El valor predictivo positivo (VPP) y el valor predictivo negativo (VPN) fueron 67% y 93%. La técnica de ultrasonografía mostró una razón de probabilidad positiva (LR+) de 7.82 y una razón de probabilidad negativa (LR­) de 0.30. En las gallinas sexualmente maduras, la Se, Sp, PPV y NPV de la ultrasonografía en comparación con el estado de postura fueron del 98%. El LR + fue 49.00 y el LR­fue 0.02 en comparación con el estado de la postura. En conclusión, la ultrasonografía podría reemplazar los exámenes post mortem para detectar oviductos quísticos en parvadas comerciales de pollitas de reemplazo previamente infectadas con una variante DMV-1639 del virus de la bronquitis infecciosa. Aunque la precisión de la prueba de la ecografía fue excelente para las gallinas en el pico de producción para identificar gallinas ponedoras y no ponedoras en función de la presencia de un huevo en el tracto reproductivo, su funcionalidad fue limitada debido a que los oviductos atrésicos no fueron detectables.


Subject(s)
Chickens , Coronavirus Infections/veterinary , Cysts/veterinary , Infectious bronchitis virus/isolation & purification , Poultry Diseases/diagnosis , Ultrasonography/veterinary , Animals , Coronavirus Infections/diagnosis , Coronavirus Infections/virology , Cysts/virology , Female , Oviducts/virology , Poultry Diseases/virology , Ultrasonography/statistics & numerical data
4.
Ann Thorac Surg ; 111(1): e23-e25, 2021 01.
Article in English | MEDLINE | ID: covidwho-628384

ABSTRACT

Emerging studies on radiologic findings in patients with coronavirus disease 2019 (COVID-19) report a high incidence of bilateral lung involvement, with ground-glass opacities imaging being the most common pattern on computed tomography. Cystic lesions, such as pneumatoceles, are rare, although they may occur in 10% of cases. Cyst formation may be explained by a focal pulmonary trauma caused by mechanical ventilation or infection-related damage to the alveolar walls leading to pneumatoceles. The superinfection of pneumatoceles is a potential life-threatening condition for which no standardized therapeutic algorithm has been accepted. We report a case of a COVID-19 patient successfully treated by lung resections for infected pneumatoceles.


Subject(s)
COVID-19/complications , COVID-19/pathology , Cysts/surgery , Cysts/virology , Superinfection/pathology , Superinfection/surgery , COVID-19/therapy , Cysts/pathology , Humans , Male , Middle Aged , Pneumonectomy , Superinfection/etiology
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