scholarly journals Neurodevelopmental outcomes following ganciclovir therapy in symptomatic congenital cytomegalovirus infections involving the central nervous system

2009 ◽  
Vol 46 ◽  
pp. S22-S26 ◽  
Author(s):  
Sara E. Oliver ◽  
Gretchen A. Cloud ◽  
Pablo J. Sánchez ◽  
Gail J. Demmler ◽  
Wayne Dankner ◽  
...  
2021 ◽  
pp. 82-89
Author(s):  
E.V. Usachova ◽  
◽  
E.A. Silina ◽  
T.N. Pakholchuk ◽  
O.V. Konakova ◽  
...  

The aim — to show the feasibility of using ganciclovir for congenital cytomegalovirus infection (CMVI) by demonstrating two clinical cases. Clinical cases. Over time, the approaches to the treatment of congenital CMVI have changed from the use of acyclovir to the appointment of ganciclovir. In 2011, a premature baby was diagnosed with congenital CMVI based on the presence of multiple organ lesions (lungs, liver, spleen, pancreas, eyes, central nervous system) and positive result of CMV PCR test in blood, urine and cerebrospinal fluid. Only acyclovir was used as an etiotropic drug due to the lack of evidence at that time on the safety of another antiviral drug — ganciclovir. Treatment was not completely effective: in the follow;up at the age of two the child has a grave violation hearing and vision and profound disability due to the residual effects on the central nervous system. In 2019, a newborn child with severe haemorrhagic syndrome, respiratory disorders and neurological symptoms was diagnosed with congenital CMVI by positive result of CMV PCR test and ganciclovir was prescribed at a dose of 6 mg/kg every 12 hours by an intravenous infusion under the control of a routine complete blood count (CBC) test. On the second week of treatment, positive dynamics was observed clinically, on the 6th week — negative result of CMV PCR test. The child was discharged on day 70th of treatment without residual effects on the central nervous system. At the age of 9 months, deafness of 2–3 degrees was diagnosed, but prosthetics were performed timely with complete restoration of hearing. At age of 12 month this child sits, rolls over, crawls; responds adequately to others; captures the gaze and keep an eye on items. Conclusions. Two clinical cases through the description of changes in approaches to specific therapy of congenital cytomegalovirus disease from acyclovir to ganciclovir and a clear demonstration of the difference in disease outcomes — from severe disability when ganciclovir was not prescribed, to complete rehabilitation with its use demonstrate the feasibility of prescribing ganciclovir. The research was carried out in accordance with the principles of the Helsinki Declaration. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: congenital cytomegalovirus infection, severe forms, treatment, acyclovir, ganciclovir.


Author(s):  
Gladys Harrison

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.


Author(s):  
John L.Beggs ◽  
John D. Waggener ◽  
Wanda Miller ◽  
Jane Watkins

Studies using mesenteric and ear chamber preparations have shown that interendothelial junctions provide the route for neutrophil emigration during inflammation. The term emigration refers to the passage of white blood cells across the endothelium from the vascular lumen. Although the precise pathway of transendo- thelial emigration in the central nervous system (CNS) has not been resolved, the presence of different physiological and morphological (tight junctions) properties of CNS endothelium may dictate alternate emigration pathways.To study neutrophil emigration in the CNS, we induced meningitis in guinea pigs by intracisternal injection of E. coli bacteria.In this model, leptomeningeal inflammation is well developed by 3 hr. After 3 1/2 hr, animals were sacrificed by arterial perfusion with 3% phosphate buffered glutaraldehyde. Tissues from brain and spinal cord were post-fixed in 1% osmium tetroxide, dehydrated in alcohols and propylene oxide, and embedded in Epon. Thin serial sections were cut with diamond knives and examined in a Philips 300 electron microscope.


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