scholarly journals Correction to: Effects of blood loss on organ attenuation on postmortem CT and organ weight at autopsy

Author(s):  
Jakob Heimer ◽  
Vasiliki Chatzaraki ◽  
Wolf Schweitzer ◽  
Michael J. Thali ◽  
Thomas D. Ruder
Author(s):  
Jakob Heimer ◽  
Vasiliki Chatzaraki ◽  
Wolf Schweitzer ◽  
Michael J. Thali ◽  
Thomas D. Ruder

Abstract Background Cases of external hemorrhage are difficult to recognize on postmortem computed tomography (PMCT). Purpose To investigate the effects of blood loss on CT attenuation of the spleen, liver, kidneys, and lungs on PMCT and to assess the relationship between blood loss and organ weight. Methods A total of 125 cases with blood loss were sex- and age-matched to 125 control cases without blood loss. Individual organ attenuation was measured on transverse CT images. Organ weights of the liver, spleen, kidneys, and lung were extracted from the autopsy protocols. Results Organ weight was significantly lower in cases with blood loss (lung 30%, spleen 28%, kidneys 14%, liver 18%) than in controls. CT attenuation of the lungs was significantly lower (30%) in cases with blood loss than in controls. CT attenuation of the spleen and kidneys did not significantly differ between cases and controls. CT attenuation of the liver was significantly higher (25%) in cases with blood loss than in controls. Conclusion Blood loss decreases organ weight and CT attenuation of the lungs but appears to have no significant effect on CT attenuation of the spleen and kidneys. The increased liver attenuation in cases with blood loss compared to controls was an unexpected finding and remains challenging to explain. One probable interpretation refers to different levels of hepatic glycogen; however, further work is warranted to substantiate this hypothesis.


2011 ◽  
Vol 215 (S 01) ◽  
Author(s):  
L Driul ◽  
AP Londero ◽  
V Burra ◽  
T Dogareschi ◽  
A Biasioli ◽  
...  
Keyword(s):  

1990 ◽  
Vol 63 (02) ◽  
pp. 241-245 ◽  
Author(s):  
Jørgen Gram ◽  
Thomas Janetzko ◽  
Jørgen Jespersen ◽  
Hans Dietrich Bruhn

SummaryThe tissue-type plasminogen activator related fibrinolytic system was studied in 24 patients undergoing cardiopulmonary bypass surgery. The degradation of fibrinogen and fibrin was followed during and after surgery by means of new sensitive and specific assays and the changes were related to the blood loss measured in the chest tube drain during the first 24 postoperative hours. Although tissue-type plasminogen activator was significantly released into the circulation during the period of extracor-poreal circulation (p <0.01), constantly low levels of fibrinogen degradation products indicated that a systemic generation of plasmin could be controlled by the naturally occurring inhibitors. Following extracorporeal circulation heparin was neutralized by protamine chloride, and in relation to the subsequent generation of fibrin, there was a short period with increased concentrations of fibrinogen degradation products (p <0.01) and a prolonged period of degradation of cross-linked fibrin, as detected by increased concentrations of D-Dimer until 24 h after surgery (p <0.01). Patients with a higher than the median blood loss (520 ml) in the chest tube drain had a significantly higher increase of D-Dimer than patients with a lower than the median blood loss (p <0.05).We conclude that the incorporation of tissue-type plasminogen activator into fibrin and the in situ activation of plasminogen enhance local fibrinolysis, thereby increasing the risk of bleeding in patients undergoing open heart surgery


1995 ◽  
Vol 74 (04) ◽  
pp. 1064-1070 ◽  
Author(s):  
Marco Cattaneo ◽  
Alan S Harris ◽  
Ulf Strömberg ◽  
Pier Mannuccio Mannucci

SummaryThe effect of desmopressin (DDAVP) on reducing postoperative blood loss after cardiac surgery has been studied in several randomized clinical trials, with conflicting outcomes. Since most trials had insufficient statistical power to detect true differences in blood loss, we performed a meta-analysis of data from relevant studies. Seventeen randomized, double-blind, placebo-controlled trials were analyzed, which included 1171 patients undergoing cardiac surgery for various indications; 579 of them were treated with desmopressin and 592 with placebo. Efficacy parameters were blood loss volumes and transfusion requirements. Desmopressin significantly reduced postoperative blood loss by 9%, but had no statistically significant effect on transfusion requirements. A subanalysis revealed that desmopressin had no protective effects in trials in which the mean blood loss in placebo-treated patients fell in the lower and middle thirds of distribution of blood losses (687-1108 ml/24 h). In contrast, in trials in which the mean blood loss in placebo-treated patients fell in the upper third of distribution (>1109 ml/24 h), desmopressin significantly decreased postoperative blood loss by 34%. Insufficient data were available to perform a sub-analysis on transfusion requirements. Therefore, desmopressin significantly reduces blood loss only in cardiac operations which induce excessive blood loss. Further studies are called to validate the results of this meta-analysis and to identify predictors of excessive blood loss after cardiac surgery.


2019 ◽  
Author(s):  
C Haslinger ◽  
W Korte ◽  
T Hothorn ◽  
R Brun ◽  
C Greenberg ◽  
...  

Author(s):  
Ritu Gupta ◽  
Ravinder K Gupta ◽  
Vallabh Dogra ◽  
Himani Badyal

Objective: To study the various beliefs and problems regarding menstruation among adolescent girls living in rural border areas. Design- Prospective study. Setting- Pediatric outpatient clinic. Materials and methods- About 200 adolescent girls (11-19 years) living in rural border areas were enrolled for the study. These girls were asked about menarche, duration of the cycle, amount of blood loss and the various menstrual problems. They were also asked about the various beliefs and myths regarding menstruation. The girls having any illness affecting the menstrual cycle or those suffering from neuropsychiatric disorders were excluded from this study. Results- About 51% of the study population was in the age group 17-18 years. About 43.5% of girls attained menarche at the age of 10-12 years. About 51% of girls did not know about menstruation before menarche. Abdominal pain was the most common side effect seen in 41% of girls during menstruation. About 61% of girls considered themselves unclean during menstruation.  Twenty percent avoided schools, 20% avoided kitchen, 12% avoided temples while 10% stayed away from friends/ relatives. Only 33% of girls knew that menstruation stops temporarily after becoming pregnant. Twenty-two percent girls were using sanitary napkins while the rest used different types of clothes during the menstrual cycle. Conclusion- There is a dire need to educate girls regarding menstruation before menarche in the rural border areas. Every mother should discuss in a friendly way regarding various aspects of menstruation.


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