A retrospective review of all patients presenting to a tertiary referral center with acute nontraumatic upper limb ischemia between January 1992 and June 1997 was undertaken to examine the role of intraarterial thrombolysis in the management of such cases. Twenty-one patients were identified in the radiology and vascular surgery departments' registers. Twenty (95%) underwent angiography, demonstrating subclavian artery occlusion in four, axillary in two, brachial in 13, and one at the digital level. Intraarterial thrombolysis was attempted in 12 patients. There were three technical failures, all requiring embolectomy. Six had complete lysis and resolution of their symptoms. One patient had partial lysis but experienced no further rest pain. Thrombolysis was unsuccessful in two cases with one subsequently requiring embolectomy and the other surgical bypass. Three patients had surgical intervention as their primary procedure with two favorable outcomes and one ending in above-elbow amputation. Five patients were treated conservatively with heparin, resulting in three partial and two full recoveries. One patient experienced complete resolution of symptoms with an intravenous prostacyclin infusion. Both electrocardiograms (ECG) and echocardiograms (ECHO) were of limited diagnostic aid, and long-term warfarin anticoagulation was prescribed to all patients. There was no recurrence of upper limb ischemia at a median follow up of 18 months. Intraarterial thrombolysis is an effective first line treatment for acute nontraumatic upper limb ischemia in selected cases.
Ischemic stroke secondary to dynamic vertebral artery stenosis or occlusion, also known as "bow hunter's syndrome," is a rare stroke mechanism. We report a case of a 24-year-old man with multiple hereditary exostosis (MHE) diagnosed at childhood. His first presentation to a neurologist was due to neck pain and clinical syndrome suggestive of ischemia in the vertebrobasilar territory. A therapeutic occlusion was done successfully without complication. The patient was discharged two days later on aspirin alone. In follow up one year later he continued to be symptom free. Moreover, this stroke mechanism has been reported extensively in the literature in isolation or secondary to many underlying diseases. In total, there are 168 cases reported in the published English literature, in either case reports or small series. In this review, we found that by far, vertebral artery occlusion at the atlanto-axial (C1-2) level dominated most reported cases. The most frequent presentation that led to further investigation was syncope or pre-syncope provoked by head rotation to one side. To our knowledge, there is no previous report of any stroke syndrome related to MHE before our case. In this paper, we report the first case secondary to MHE and review the literature up to date since the first reported case in 1952.
The radiology report is the primary form of communication between the radiologists and referring clinicians. It is a structured document containing several key components pertaining to the interpretation of radiological examinations and may require the addition of follow-up imaging recommendations to optimize patient outcomes. This study aims to determine whether follow-up imaging recommendations are being acknowledged and acted upon by referrers. MethodsThis retrospective study was conducted at a single tertiary hospital. Prerecorded BESTCare data of patients who underwent abdominal and pelvic computed tomography (CT) scans between October 1, 2017, and December 31, 2017, and received recommendations for further evaluation were collected after obtaining ethical approval from the local authority. Data of patients younger than 14 years old, patients who did not receive a recommendation, and patients who had CT scans that were uploaded to the BESTCare system but were performed outside the institution were excluded. The collected data were recorded in a passwordprotected Microsoft Excel file for further analysis. ResultsA total of 523 report recommendations from 422 abdominal and pelvic CT reports were analyzed. The most common organs indicated for CT scan evaluation were the breast (N = 54, 10.33%), kidney (N = 46, 8.80%), lymph node (N = 36, 6.88%), and colon (N = 33, 6.31%). The most common type of further evaluation recommended was further imaging (N = 410, 78.39%). A total of 278 (53.15%) recommendations were not performed, with 199 (71.58%) not having a documented rationale for noncompliance. ConclusionThe majority of the follow-up imaging recommendations to ordering physicians were not carried out. This study highlights the need for notification and audit systems to monitor compliance with follow-up recommendations. Improving the communication between radiologists and referring physicians is key to optimizing patient healthcare.
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