Acute subdural hematoma following halo pin tightening in a patient with bilateral vertebral artery dissection.

We report the first case of acute subdural hematoma (SDH) developing after tightening the halo of an osteoporotic 61-year-old woman on warfarin therapy for bilateral traumatic vertebral artery dissection. We discuss literature relevant to this case with an emphasis on identifying warning signs, including recurrent pin loosening, especially in patients with compromised bone structure and high risk of bleeding. Our 61-year-old patient presented to neurosurgery clinic for a 2-month follow-up of a type-III odontoid fracture sustained in a motor vehicle accident. The patient had repeatedly loosened halo pins, and shortly after the pins were tightened, the patient had a syncopal event and struck her head. An emergent computed tomography scan revealed acute SDH requiring emergent craniotomy and evacuation. SDH following pin penetration in a patient with bilateral vertebral artery dissection, osteoporosis, and anticoagulation has not been reported as a complication of the use of the halo vest for stabilization of the cervical spine. The risk of this serious complication can be minimized by giving special consideration to patients with comorbidities and by repositioning problematic pins. This case demonstrates the importance of special attention to bone strength, bleeding risk, and recurrent minor complaints with use of the halo vest.

Severe proximal myopathy in advanced renal failure. Diagnosis and management.

Myopathies encountered in uremic patients may have different pathogenetic mechanisms and treatment. Secondary hyperparathyroidism may cause uremic myopathy responding to specific treatment. This study aimed at presenting a case illustrative of the clinical features, diagnosis and management of uremic parathyroid myopathy. A 66-year old man with renal failure from membranous nephropathy developed sensory signs of uremic neuropathy and progressive painless weakness of the pelvic girdle muscles bilaterally. Motor nerve conduction velocity was normal, electromyogram was consistent with a myopathic pattern, while muscle biopsy showed a pattern of atrophy more consistent with a neuropathic pattern. Serological tests for collagen vascular diseases and hyperthyroidism were negative, while serum muscle enzymes were not elevated and serum phosphate levels were not low. Serum parathyroid hormone level was grossly elevated, while serum calcium was mildly elevated in a small fraction of the measurements, serum alkaline phosphatase showed a progressive rise and skeletal bone survey did not disclose osteopenia or signs of parathyroid bone disease. A course of calcitriol failed to improve the myopathy, which responded promptly and dramatically to parathyroidectomy. Uremic parathyroid myopathy, which has a characteristic clinical picture, must be differentiated from other neuropathic or myopathic conditions that require specific treatments. Progressive parathyroid myopathy is, by itself, an indication for parathyroidectomy, which is curative in this case.

Pulmonary capillary hemangiomatosis-like foci. An autopsy study of 8 cases.

Pulmonary capillary hemangiomatosis (PCH) typically occurs in young patients who have signs and symptoms of pulmonary hypertension. It commonly is misdiagnosed in life as pulmonary veno-occlusive disease, and the correct diagnosis usually is not made until autopsy. Autopsy records, including reports, gross photographs, histologic slides, clinical histories, and radiographic images, were reviewed to identify cases with morphologic changes characteristic of PCH. The previous case reports describe PCH as a diffuse process throughout both lung fields. All patients were symptomatic, and most died of the disease. This article details 8 cases of PCH-like foci that were incidental findings at autopsy in which the patients did not have symptoms of pulmonary hypertension nor did PCH contribute in any way to death. This is the first case series that describes pathologic changes of PCH occurring in this setting, and we hope to provide more interest in PCH and its natural history.

The role of women in mental health care in 19th century England.

The history of women's role in the care of mentally ill people is relatively unchartered territory. Women were involved in mental health care in a variety of ways and at the beginning of the 19th century they could operate in capacities equal in status to those of men. Social policies which gave legal backing to medical authority; the rise of medical professionalism, which until the last quarter of the century excluded women; the Victorian ideology which fixed women in a subservient role, all served to ensure that their contribution to the care of mentally ill people was subordinate to that of men. This was reflected in the duties they undertook and their rates of pay, which were always less than those of men.

Advantages of laparoscopic cholecystectomy in the elderly and in patients with high ASA classifications.

Two hundred and thirty-three patients underwent cholecystectomy at Mercy Hospital of Pittsburgh during the popularization of laparoscopic cholecystectomy. Laparoscopic cholecystectomy was performed in 167 of these patients while the remaining 66 patients had an open cholecystectomy. A statistically significant increase in the incidence of morbidity was observed with advancing age (p < 0.001, odds ratio 2.33) as well as in patients with higher ASA classes (p < 0.001, odds ratio 2.31). Overall, laparoscopic cholecystectomy was associated with a markedly lower incidence of morbidity than the open procedure (7% versus 47%, p < 0.001). A multiple logistic regression model was applied to the study population due to the fact that those patients who underwent open cholecystectomy tended to be older individuals with more clinically significant associated medical conditions than those individuals who underwent the laparoscopic procedure. When the logistic regression model was applied to control for the differences in age, associated illnesses, and ASA class between the two groups; a seven fold increase in the risk of morbidity was found in the open group as compared to the laparoscopic group (p < 0.001, odds ratio 7.31). These findings favor the use of laparoscopic cholecystectomy over open cholecystectomy in all eligible patients, especially elderly patients and those patients in higher ASA classes.