1/349. Hyperactive rhizopathy of the vagus nerve and microvascular decompression. Case report.A 37-year-old woman underwent microvascular decompression of the superior vestibular nerve for disabling positional vertigo. Immediately following the operation, she noted severe and spontaneous gagging and dysphagia. Multiple magnetic resonance images were obtained but failed to demonstrate a brainstem lesion and attempts at medical management failed. Two years later she underwent exploration of the posterior fossa. At the second operation, the vertebral artery as well as the posterior inferior cerebellar artery were noted to be compressing the vagus nerve. The vessels were mobilized and held away from the nerve with Teflon felt. The patient's symptoms resolved immediately after the second operation and she has remained symptom free. The authors hypothesize that at least one artery was shifted at the time of her first operation, or immediately thereafter, which resulted in vascular compression of the vagus nerve. To the authors' knowledge, this is the first reported case of a hyperactive gagging response treated with microvascular decompression. The case also illustrates the occurrence of a possibly iatrogenic neurovascular compression syndrome.- - - - - - - - - - ranking = 1keywords = artery (Clic here for more details about this article) |
2/349. median nerve damage from brachial artery puncture: a case report.This report describes a case in which puncture of the brachial artery to obtain a sample for blood-gas analysis resulted in damage to the median nerve with a persisting neuropathy and apparent loss of function. Errors in judgment and contributions to possible negligence included (1) inappropriate choice of sampling site; (2) lack of knowledge of precautions and possible complications; (3) incomplete/inadequate description of optimal procedure in departmental procedure manual; (4) arbitrary selection of the dominant hand.- - - - - - - - - - ranking = 1.6666666666667keywords = artery (Clic here for more details about this article) |
3/349. Iatrogenic left main coronary artery stenosis.Iatrogenic left main coronary artery stenosis is a potentially life-threatening complication of cardiac valve replacement surgery due to injury by perfusion cannulas. This requires prompt clinical recognition and diagnosis by repeat coronary angiography, and treatment by early coronary artery bypass grafting. We present 3 patients who had normal coronary arteries prior to valve replacement surgery, and who developed severe left main coronary artery stenosis after surgery. Accelerating angina and refractory ventricular arrhythmia were presenting clinical manifestations. coronary artery bypass grafting was successfully performed in all 3 patients.- - - - - - - - - - ranking = 2.7118936916645keywords = artery, injury (Clic here for more details about this article) |
4/349. Percutaneous transluminal coronary angioplasty as alternative treatment to coronary artery bypass surgery in iatrogenic stenosis of the left main coronary artery.The present report describes three patients with iatrogenic left main coronary artery after aortic valve replacement. All three patients were successfully treated by percutaneous transluminal coronary angioplasty. No clinical or angiographic signs of restenosis were seen during the long-term follow-up (4, 6, and 11 years). These patients show the feasibility of percutaneous transluminal coronary angioplasty in iatrogenic left main coronary artery stenosis as alternative of coronary artery bypass surgery. However, it should be only considered in patients who would otherwise be deemed inoperable, refused reoperation, and are willing to take the risk involved.- - - - - - - - - - ranking = 3.6666666666667keywords = artery (Clic here for more details about this article) |
5/349. The risk of paraplegia through medical treatment.In the Orthopedic University Hospital of Heidelberg (section orthopedics II, treatment and rehabilitation of paraplegics), 21 patients with iatrogenic paraplegia were treated between 1968 and 1991. paraplegia occurred in nine cases after procedures close to the spinal cord. In 12 cases paraplegia complicated medical treatment. Procedures close to the spinal cord, such as laminectomy, vertebrotomy, spondylodesis, and peridural anaesthesia, involve the risk of mechanical damage to the spinal cord, the level of paraplegia depends on the area of treatment. Any previous damage to the spinal cord increases the risk of paraplegic complications. The main risks in procedures distant from the spinal cord, such as vascular surgery, angiography, radiotherapy, bronchial artery embolisation, and umbilical artery injection, are disturbances of the blood supply or toxic mechanisms. The ischaemic genesis of spinal cord damage is obvious in the case of vessel ligatures or cross-clamping of the aorta with resulting hypotonic discirculation. In radiomyelopathy as well, the damage to the spinal vessels outweighs the direct neuronal damage. Corresponding to the vascular cause, lesions are more likely to occur at the level of borderlines of blood supply in the middle thoracic cord or in the area of a non-anastomosed great radicular artery in the lumbar spinal cord. knowledge of the consequences and side effects of medical treatment is imperative. Knowing about the risk of a paraplegic lesion, we need a strict indication for diagnostic and therapeutic interventions. Due to progress in science some of the reasons of iatrogenic paraplegia have become manageable. Especially in radiotherapy, vascular surgery and angiography the risk of neurological complications has been lowered.- - - - - - - - - - ranking = 1keywords = artery (Clic here for more details about this article) |
6/349. Therapeutic relowering of the serum sodium in a patient after excessive correction of hyponatremia.BACKGROUND: Inappropriate correction of chronic hyponatremia could lead to major neuropathological sequelae. In man, the risk of brain myelinolysis increases strikingly when correction of the serum sodium exceeds 10-15 mEq/l/24 h. No treatment is actually available for this iatrogenic brain injury. However, recent experimental data showed that rapid reinduction of the hyponatremia greatly reduces the incidence of brain damage and death in case of serum sodium overshooting. SUBJECTS AND methods: We tested this rescue manoeuver in a 71-year-old woman with nausea, confusion and severe (SNa 106 mEq/l) chronic hyponatremia related to thiazides. It was associated with hypokalemia (SK: 3.2 mEq/l). RESULTS: Treatment with isotonic saline produced inappropriately high SNa correction level of 21 mEq/l after the first 24 h. After initial improvement, the neurological status deteriorated after 72 h. Rapid reinduction of the hyponatremia was then ordered. Administration of hypotonic fluids (by oral and i.v. route) combined with dDAVP induced a prompt decline in the SNa (-16 mEq/l/14 h) with a final gradient of correction of deltaSNa 9 mEq/l. This manoeuver was well tolerated without untoward effects. The natremia then progressively normalized and the patient completely recovered without neurological sequelae. CONCLUSION: Hypotonic fluids may be safely administered to decrease the natremia after excessive correction of hyponatremia for potential prevention of myelinolysis.- - - - - - - - - - ranking = 0.045227024997862keywords = injury (Clic here for more details about this article) |
7/349. Iatrogenic injury in videolaparoscopic cholecystectomy: difficult surgical correction biliary tract.Two cases of biliary tract serious lesions during videolaparoscopic cholecystectomy are reported. In the first case of lithiasic cholecystitis there had been a complete damage of the common biliary duct; in the second case there had been a double main biliary duct binding with removal of a biliary tract segment. In both cases a biliary confluence-jejunal anastomosis with Roux-en-Y loop was made up. In the first one the operation was difficult because of the main bile duct's fragility and modest expansion. In the second one the presence of a secondary biliary duct in gallbladder fossa not recognized, but drained outside with a common drainage placed during the operation prevented appearance of jaundice with dilatation of biliary ducts. It was heavily conditioned performing confluence-jejunal anastomosis with Roux-en-Y loop. The post-operative course was characterized by appearance of an external biliary fistula which has spontaneously disappeared. One year later, neither of the two patients had any stenosis or cholangitis problems.- - - - - - - - - - ranking = 0.18090809999145keywords = injury (Clic here for more details about this article) |
8/349. Diaphragmatic hernia seen as a late complication of laparoscopic cholecystectomy.Laparoscopic surgery has emerged as the standard of care for the elective operative management of symptomatic gallbladder disease. The surgical literature is now beginning to accumulate sufficient case numbers that more clearly define the associated morbidity of this type of surgery. This article reports an instance of iatrogenic injury to the right muscular hemidiaphragm and subsequent hernia after laparoscopic cholecystectomy.- - - - - - - - - - ranking = 0.045227024997862keywords = injury (Clic here for more details about this article) |
9/349. Accidental iatrogenic intoxications by cytotoxic drugs: error analysis and practical preventive strategies.OBJECTIVES: Drug errors are quite common. Many of them become harmful only if they remain undetected, ultimately resulting in injury to the patient. Errors with cytotoxic drugs are especially dangerous because of the highly toxic potential of the drugs involved. For medico-legal reasons, only 1 case of accidental iatrogenic intoxication by cytotoxic drugs tends to be investigated at a time, because the focus is placed on individual responsibility rather than on system errors. The aim of our study was to investigate whether accidental iatrogenic intoxications by cytotoxic drugs are faults of either the individual or the system. The statistical analysis of distribution and quality of such errors, and the in-depth analysis of contributing factors delivered a rational basis for the development of practical preventive strategies. methods: A total of 134 cases of accidental iatrogenic intoxication by a cytotoxic drug (from literature reports since 1966 identified by an electronic literature survey, as well as our own unpublished cases) underwent a systematic error analysis based on a 2-dimensional model of error generation. Incidents were classified by error characteristics and point in time of occurrence, and their distribution was statistically evaluated. The theories of error research, informatics, sensory physiology, cognitive psychology, occupational medicine and management have helped to classify and depict potential sources of error as well as reveal clues for error prevention. RESULTS: Monocausal errors were the exception. In the majority of cases, a confluence of unfavourable circumstances either brought about the error, or prevented its timely interception. Most cases with a fatal outcome involved erroneous drug administration. Object-inherent factors were the predominant causes. A lack of expert as well as general knowledge was a contributing element. In error detection and prevention of error sequelae, supervision and back-checking are essential. Improvement of both the individual training and work environment, enhanced object identification by manufacturers and hospitals, increased redundancy, proper usage of technical aids, and restructuring of systems are the hallmarks for error prevention. CONCLUSIONS: Errors follow general patterns even in oncology. Complex interdependencies of contributing factors are the rule. Thus, system changes of the working environment are most promising with regard to error prevention. Effective error control involves adapting a set of basic principles to the specific work environment. The work environment should allow for rectification of errors without penalty. Regular and ongoing intra-organisational error analysis needs to be an integral part of any error prevention strategy. However, it seems impossible to totally eliminate errors. Instead, if the environment guarantees timely error interception, most sequelae are avoided, and errors transform into a system-wide learning tool.- - - - - - - - - - ranking = 0.045227024997862keywords = injury (Clic here for more details about this article) |
10/349. Simultaneous subarachnoid hemorrhage and carotid cavernous fistula after rupture of a paraclinoid aneurysm during balloon-assisted coil embolization.We describe an iatrogenic perforation of a paraclinoid aneurysm during balloon-assisted coil embolization that resulted in simultaneous subarachnoid contrast extravasation and a carotid cavernous fistula. The causative factors specifically related to the balloon-assisted method that led to aneurysm rupture are discussed as well as strategies for dealing with this complication.- - - - - - - - - - ranking = 0.99184365957403keywords = carotid (Clic here for more details about this article) |
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