1.Sensory assessment of meshed skin grafts over free gracilis muscle flaps without nerve coaptation for lower extremity reconstruction
Mathias TREMP ; Natascha J. WALDKIRCHER ; Wenjin WANG ; Carlo M. ORANGES ; Pietro G. DI SUMMA ; Yixin ZHANG ; Wei WANG ; Dirk J. SCHAEFER ; Daniel F. KALBERMATTEN
Archives of Plastic Surgery 2021;48(2):224-230
Background:
Little is known about the sensate recovery of skin grafts over free non-neurotized muscle flaps. The aim of this study was to evaluate the sensitivity of free gracilis muscle flaps and meshed skin grafts without nerve coaptation.
Methods:
Thirteen consecutive patients with a median age of 55 years (range, 21–70 years) who underwent lower extremity reconstruction between September 2014 and October 2016 were included. Complications, flap contour, skin perception, and sensate recovery were assessed.
Results:
All flaps survived completely. In one patient, wound dehiscence and infection occurred 1 month after surgery. After a median follow-up of 14 months (range, 10–51 months), a satisfactory contour and skin perception were achieved. The Semmes-Weinstein (SW) monofilament test (154.8±22 g) and static two-point discrimination (2-PD) (12.6±0.7 mm) showed intermediate recovery compared to the surrounding site (41% and 76%, respectively). There was an intermediate correlation between flap size and sensate recovery (2-PD: r=0.27, P=0.36; SW test: r=0.45, P=0.12). Vibration sensation recovered to 60%, whereas thermal sensation remained poor (19% at 5°C and 25% at 25°C).
Conclusions
Finer sensation could be partially restored. However, thermal sensation remained poor.
2.Hypnosis to Reduce Distress in Children Undergoing Anorectal Manometry: A Randomized Controlled Pilot Trial
Desiree F BAALEMAN ; Mana H VRIESMAN ; Ilan J N KOPPEN ; Kim M OSBORNE ; Marc A BENNINGA ; Miguel SAPS ; Desale YACOB ; Peter L LU ; Frederick W WOODLEY ; Carlo Di LORENZO
Journal of Neurogastroenterology and Motility 2022;28(2):312-319
Background/Aims:
To assess the effectiveness and feasibility of a brief session of hypnosis to reduce distress in children with functional constipationundergoing anorectal manometry (ARM).
Methods:
A partially-blinded randomized controlled pilot trial was conducted in children 4-18 years old scheduled for ARM. Children were randomized to receive a brief session of hypnosis prior to ARM or standard care. Non-blinded and blinded observers rated the child’s level of distress using the Observation Scale of Behavioral Distress and a 4-point-Likert scale, respectively. Differences between groupswere analyzed using Fisher’s exact test or Mann-Whitney U test as appropriate.
Results:
Data from 32 children (15 hypnosis and 17 standard care) were analyzed. Prior to insertion of the catheter, the observed mean levels of distress were lower in the hypnosis group according to both the non-blinded observer (median 0.0 [interquartile range {IQR} 0.0-0.3] vs 1.4 [IQR 0.3-2.4]; P = 0.009) and the blinded observer (median 0.0 [IQR 0.0-0.0] vs 0.5 [IQR 0.0-1.0]; P = 0.044). During ARM, observed and reported levels of distress did not differ significantly. In the hypnosis group, 92.9% of parents and childrenreported that hypnosis helped the child to relax. There were no significant differences in resting pressure, squeeze pressure, or duration of the procedure between both groups.
Conclusion
A brief session of hypnosis for children before ARM is an easily incorporable intervention that lowers distress levels prior to theprocedure and is positively perceived by children and parents.
4.Preclinical models of idiosyncratic drug-induced liver injury (iDILI): Moving towards prediction.
Antonio SEGOVIA-ZAFRA ; Daniel E DI ZEO-SÁNCHEZ ; Carlos LÓPEZ-GÓMEZ ; Zeus PÉREZ-VALDÉS ; Eduardo GARCÍA-FUENTES ; Raúl J ANDRADE ; M Isabel LUCENA ; Marina VILLANUEVA-PAZ
Acta Pharmaceutica Sinica B 2021;11(12):3685-3726
Idiosyncratic drug-induced liver injury (iDILI) encompasses the unexpected harms that prescription and non-prescription drugs, herbal and dietary supplements can cause to the liver. iDILI remains a major public health problem and a major cause of drug attrition. Given the lack of biomarkers for iDILI prediction, diagnosis and prognosis, searching new models to predict and study mechanisms of iDILI is necessary. One of the major limitations of iDILI preclinical assessment has been the lack of correlation between the markers of hepatotoxicity in animal toxicological studies and clinically significant iDILI. Thus, major advances in the understanding of iDILI susceptibility and pathogenesis have come from the study of well-phenotyped iDILI patients. However, there are many gaps for explaining all the complexity of iDILI susceptibility and mechanisms. Therefore, there is a need to optimize preclinical human