Observation of Collagen-Containing Lesions After Hematoma Resolution in Intracerebral Hemorrhage

Background and Purpose: The classic presentation of chronic (stage III) hemorrhagic stroke lesions is a fluid-filled cavity. In one of the most commonly used animal models of intracerebral hemorrhage (ICH), we noticed additional solid material within the chronic lesion. We examined the composition of those chronic ICH lesions and compared them with human autopsy cases. Methods: ICH was induced in rats by the injection of collagenase in the striatum. Tissue sections after hematoma resolution corresponding to 3 different chronic time points—28, 42, and 73 to 85 days post-ICH—were selected. Human autopsy reports at the University Hospital of Zurich were searched between 1990 and 2019 for ICH, and 3 chronic cases were found. The rat and human sections were stained with a variety of histopathologic markers. Results: Extensive collagenous material was observed in the chronic lesion after hematoma resolution in both the rat model and human autopsy cases. Additional immunostaining revealed that the material consisted primarily of a loose network of collagen 3 intermingled with occasional GFAP (glial fibrillary acidic protein)-positive processes and collagen 4. Conclusions: A key feature of the chronic ICH lesion is a loose network of collagen 3. The collagenase rat model reproduces the morphology and composition of the chronic human ICH lesion. While identifying new features of ICH lesion pathology, these results are important for treatment and recovery strategies.

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Diagnosis of Dizziness Due to a Core Vestibular Projection Injury in a Patient with Intracerebral Hemorrhage

Diagnostics ◽

10.3390/diagnostics10040220 ◽

2020 ◽

Vol 10 (4) ◽

pp. 220 ◽

Cited By ~ 1

Author(s):

Hyeok Gyu Kwon ◽

Chul Hoon Chang ◽

Sung Ho Jang

Keyword(s):

Basal Ganglia ◽

Intracerebral Hemorrhage ◽

Physical Examination ◽

Left Hemisphere ◽

Diffusion Tensor ◽

Insular Cortex ◽

University Hospital ◽

The Core ◽

The University ◽

Over Time

Herein, we present a patient diagnosed with dizziness due to a core vestibular projection injury following intracerebral hemorrhage (ICH). A 51-year-old female patient underwent conservative management for a spontaneous ICH in the left hemisphere (mainly affecting the basal ganglia and insular cortex). When she visited the rehabilitation department of the university hospital at two years after the ICH onset, she advised of the presence of moderate dizziness (mainly, light-headedness) that started after ICH onset. She mentioned that her dizziness had decreased slightly over time. No abnormality was observed in the vestibular system of either ear on physical examination by an otorhinolaryngologist. However, diffusion tensor tractography results showed that the core vestibular projection in the left hemisphere was discontinued at the basal ganglia level compared with the patient’s right core vestibular projection and that of a normal subject. Therefore, it appears that the dizziness in this patient can be ascribed to a left core vestibular projection injury.

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In-hospital Mortality Among Neurological Patients over the Period of 5 years — a Retrospective, Single-center Study

The Journal of Neurological and Neurosurgical Nursing ◽

10.15225/pnn.2020.9.1.3 ◽

2020 ◽

Vol 9 (1) ◽

pp. 20-26

Author(s):

Adam Wiśniewski ◽

Keyword(s):

Mortality Rate ◽

Hospital Mortality ◽

Neurological Disorders ◽

Hemorrhagic Stroke ◽

University Hospital ◽

Hospital Death ◽

Single Center Study ◽

Neurological Patients ◽

Neurology Clinic ◽

The University

Introduction. Neurological disorders have been considered for many years dangerous and are associated with higher risk of in-hospital death. Brain vascular disorders are widely considered as the most severe and related to the highest mortality rate. Aim. The aim of the study was to assess the mortality rate in subjects hospitalized in the Neurology ward within 5 years, in particular the etiology, direct cause and predictability of deaths. Material and Methods. This study is retrospective. The documentation analysis concerned the last 5 years, i.e. from 2015 to 2019. From among the entire database of 8247 patients hospitalized in the Neurology Clinic of the University Hospital No. 1 in Bydgoszcz, 429 deaths were reported and analyzed. Results. The mortality rate was 5.2% among all subjects, 6.6% among all vascular patients and 1.16% among non-vascular subjects. The highest mortality was reported among hemorrhagic stroke (28.4%) and it was significantly higher compared to ischemic stroke (OR = 6.25, 95% CI 4.9–7.8, p < 0.0001). Patients with stroke had significantly higher mortality compared to other neurological disorders (OR = 11.08 95% CI 7.7–15.9, p < 0.0001). The main direct reason of death (80%) was primary cerebral as a result of baseline disease. 7% of deaths were considered as sudden, unexpected and 10.7% were related to complications developed during hospitalization. Conclusions. Stroke, especially hemorrhagic subtype, still remains the cause of the highest in-hospital mortality rate in the Neurology Ward. It is worth to notice that special attention should be paid to patients with coexisting infectious diseases, that contribute to higher mortality risk. (JNNN 2020;9(1):20–26) Key Words: in-hospital mortality, neurological disorders, stroke, prognosis

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Abstract #216: Knowledge About Inpatient Diabetes Management: Impact of an Educational Intervention in Nurses at the University Hospital of Puerto Rico

Endocrine Practice ◽

10.1016/s1530-891x(20)42522-4 ◽

2015 ◽

Vol 21 ◽

pp. 30-31

Author(s):

Anette Garces-Dominguez ◽

Loida Gonzalez-Rodriguez ◽

Monica Vega ◽

Myriam Allende-Vigo

Keyword(s):

Puerto Rico ◽

Educational Intervention ◽

Diabetes Management ◽

University Hospital ◽

Inpatient Diabetes ◽

Inpatient Diabetes Management ◽

The University

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Symptomatic vascular complications after vascular closure device use following diagnostic and interventional catheterisation

VASA ◽

10.1024/0301-1526.33.2.78 ◽

2004 ◽

Vol 33 (2) ◽

pp. 78-81 ◽

Cited By ~ 21

Author(s):

Thalhammer ◽

Aschwanden ◽

Jeanneret ◽

Labs ◽

Jäger

Keyword(s):

Current Literature ◽

Vascular Complications ◽

University Hospital ◽

Closure Device ◽

Ultrasound Guided ◽

Vascular Closure Device ◽

Device Use ◽

Arterial Stenoses ◽

The University ◽

Stenotic Lesions

Background: Haemostatic puncture closure devices for rapid and effective hemostasis after arterial catheterisation are a comfortable alternative to manual compression. Implanting a collagen plug against the vessel wall may become responsible for other kind of vascular injuries i.e. thrombotic or stenotic lesions and peripheral embolisation. The aim of this paper is to report our clinically relevant vascular complications after Angio-Seal® and to discuss the results in the light of the current literature. Patients and methods: We report the symptomatic vascular complications in 17 of 7376 patients undergoing diagnostic or therapeutic catheterisation between May 2000 and March 2003 at the University Hospital Basel. Results: Most patients presented with ischaemic symptoms, arterial stenoses or occlusions and thrombotic lesions (n = 14), whereas pseudoaneurysms were extremely rare (n = 3). Most patients with ischaemic lesions underwent vascular surgery and all patients with a pseudoaneurysm were successfully treated by ultrasound-guided compression. Conclusions: Severe vascular complications after Angio-Seal® are rare, consistent with the current literature. There may be a shift from pseudoaneurysms to ischaemic lesions.

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User Evaluation of an Integrated Medical Workstation for Clinical Data Analysis

Methods of Information in Medicine ◽

10.1055/s-0038-1634954 ◽

1993 ◽

Vol 32 (05) ◽

pp. 365-372 ◽

Cited By ~ 2

Author(s):

T. Timmeis ◽

J. H. van Bemmel ◽

E. M. van Mulligen

Keyword(s):

Data Analysis ◽

Clinical Research ◽

Clinical Data ◽

University Hospital ◽

User Evaluation ◽

Scientific Staff ◽

Medical Institutions ◽

Clinical Data Analysis ◽

Research Problems ◽

The University

AbstractResults are presented of the user evaluation of an integrated medical workstation for support of clinical research. Twenty-seven users were recruited from medical and scientific staff of the University Hospital Dijkzigt, the Faculty of Medicine of the Erasmus University Rotterdam, and from other Dutch medical institutions; and all were given a written, self-contained tutorial. Subsequently, an experiment was done in which six clinical data analysis problems had to be solved and an evaluation form was filled out. The aim of this user evaluation was to obtain insight in the benefits of integration for support of clinical data analysis for clinicians and biomedical researchers. The problems were divided into two sets, with gradually more complex problems. In the first set users were guided in a stepwise fashion to solve the problems. In the second set each stepwise problem had an open counterpart. During the evaluation, the workstation continuously recorded the user’s actions. From these results significant differences became apparent between clinicians and non-clinicians for the correctness (means 54% and 81%, respectively, p = 0.04), completeness (means 64% and 88%, respectively, p = 0.01), and number of problems solved (means 67% and 90%, respectively, p = 0.02). These differences were absent for the stepwise problems. Physicians tend to skip more problems than biomedical researchers. No statistically significant differences were found between users with and without clinical data analysis experience, for correctness (means 74% and 72%, respectively, p = 0.95), and completeness (means 82% and 79%, respectively, p = 0.40). It appeared that various clinical research problems can be solved easily with support of the workstation; the results of this experiment can be used as guidance for the development of the successor of this prototype workstation and serve as a reference for the assessment of next versions.

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Sharing of Worldwide Spread Knowledge Using Hypermedia Facilities & Fast Communication Protocols (Mosaic and World Wide Web): The Example of ExPASy

Methods of Information in Medicine ◽

10.1055/s-0038-1634588 ◽

1995 ◽

Vol 34 (01/02) ◽

pp. 75-78 ◽

Cited By ~ 5

Author(s):

R. D. Appel ◽

O. Golaz ◽

Ch. Pasquali ◽

J.-C. Sanchez ◽

A. Bairoch ◽

...

Keyword(s):

World Wide Web ◽

World Wide ◽

Relevant Literature ◽

Communication Protocols ◽

Laboratory Data ◽

Central Element ◽

University Hospital ◽

New Information ◽

The University ◽

Link Information

Abstract:The sharing of knowledge worldwide using hypermedia facilities and fast communication protocols (i.e., Mosaic and World Wide Web) provides a growth capacity with tremendous versatility and efficacy. The example of ExPASy, a molecular biology server developed at the University Hospital of Geneva, is striking. ExPASy provides hypermedia facilities to browse through several up-to-date biological and medical databases around the world and to link information from protein maps to genome information and diseases. Its extensive access is open through World Wide Web. Its concept could be extended to patient data including texts, laboratory data, relevant literature findings, sounds, images and movies. A new hypermedia culture is spreading very rapidly where the international fast transmission of documents is the central element. It is part of the emerging new “information society”.

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