1/482. Acute respiratory alkalosis associated with low minute ventilation in a patient with severe hypothyroidism.PURPOSE: patients with severe hypothyroidism present unique challenges to anesthesiologists and demonstrate much increased perioperative risks. overall, they display increased sensitivity to anesthetics, higher incidence of perioperative cardiovascular morbidity, increased risks for postoperative ventilatory failure and other physiological derangements. The previously described physiological basis for the increased incidence of postoperative ventilatory failure in hypothyroid patients includes decreased central and peripheral ventilatory responses to hypercarbia and hypoxia, muscle weakness, depressed central respiratory drive, and resultant alveolar hypoventilation. These ventilatory failures are associated most frequently with severe hypoxia and carbon dioxide (CO2) retention. The purpose of this clinical report is to discuss an interesting and unique anesthetic presentation of a patient with severe hypothyroidism. CLINICAL FEATURES: We describe an unique presentation of ventilatory failure in a 58 yr old man with severe hypothyroidism. He had exceedingly low perioperative respiratory rate (3-4 bpm) and minute ventilation volume, and at the same time developed primary acute respiratory alkalosis and associated hypocarbia (P(ET)CO2 approximately 320-22 mmHg). CONCLUSION: Our patient's ventilatory failure was based on unacceptably low minute ventilation and respiratory rate that was unable to sustain adequate oxygenation. His profoundly lowered basal metabolic rate and decreased CO2 production, resulting probably from severe hypothyroidism, may have resulted in development of acute respiratory alkalosis in spite of concurrently diminished minute ventilation.- - - - - - - - - - ranking = 1keywords = alveolar (Clic here for more details about this article) |
2/482. hydrochlorothiazide-induced pulmonary edema and associated immunologic changes.OBJECTIVE: To describe a patient with noncardiogenic acute pulmonary edema induced by hydrochlorothiazide and to investigate the possible involvement of an immunologic mechanism in this adverse reaction. CASE SUMMARY: A 66-year-old Hispanic woman developed acute pulmonary edema 30 minutes after the ingestion of one tablet of triamterene 75 mg/hydrochlorothiazide 50 mg. The reaction was associated with hemoconcentration; a decreased white blood cell count with a shift to a predominance of polymorphonuclear cells; decreased serum immunoglobulin (Ig) G, IgG1, and IgG4; and increased serum IgM and complement 3 concentrations. DISCUSSION: Although there have been 35 reports of cases of hydrochlorothiazide-induced pulmonary edema, the etiology of this adverse reaction remains unknown. The observations presented in this case report, along with commonalities with previously reported cases, suggest that granulocytic infiltration into the lungs and IgG deposition in alveolar membranes may play a role in hydrochlorothiazide-induced pulmonary edema. CONCLUSIONS: Noncardiogenic pulmonary edema may be an immunologically mediated rare idiosyncratic reaction to hydrochlorothiazide.- - - - - - - - - - ranking = 1keywords = alveolar (Clic here for more details about this article) |
3/482. Triggering of acute alcoholic hepatitis by alpha-interferon therapy.BACKGROUND/AIMS: Alcohol may induce autoimmunity by recognition of acetaldehyde-modified proteins which may be implicated in the pathogenicity of acute alcoholic hepatitis. We report here the potential role of alpha-interferon, a potent inducer of the autoimmunity process, in inducing alcoholic hepatitis. methods: We analyzed clinical, biological, virological and histological features in two cases where alpha-interferon treatment for HCV-related hepatitis led to a marked increase in aminotransferase activities. RESULTS: alpha-interferon as treatment of HCV-related hepatitis seemed to exacerbate acute alcoholic hepatitis despite moderate alcohol consumption. In Case 1, moderate daily alcohol intake of 40 g during therapy led to biopsy-proven acute alcoholic hepatitis, while the same consumption before therapy did not. In Case 2, before treatment, the liver biopsy showed mild acute alcoholic hepatitis; aminotransferases increased during alpha-interferon therapy, although no increase in alcohol intake was observed. CONCLUSION: alpha-interferon therapy by its immunomodulatory properties could be implicated in alteration of the course of acute alcoholic hepatitis. These observations emphasize that the decision to treat with alpha-interferon when there is even moderate alcohol consumption should be carefully weighted in HCV-infected patients.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
4/482. Prolonged respiratory failure in chlamydia pneumoniae pneumonia.We describe a 65-year-old man, who had cardiomyopathy and developed acute respiratory failure requiring ventilator treatment. Acute pneumonia caused by chlamydia pneumoniae was diagnosed based on PCR positivity of bronchoalveolar lavage. Gas exchange did not improve in response to appropriate antibiotic therapy, and the patient died.- - - - - - - - - - ranking = 1keywords = alveolar (Clic here for more details about this article) |
5/482. Acute respiratory distress syndrome in a welder exposed to metal fumes.A 43-year-old man began having malaise, chills, and fever 12 hours after cutting a galvanized steel grating with an acetylene torch at work. Over the next 72 hours, his symptoms persisted and became worse with progressive shortness of breath. He was admitted to the hospital and begun on antibiotics and steroids. The next day his condition had deteriorated to the point that he had to be intubated. Chest x-ray film and computed tomography showed patchy and interstitial infiltration bilaterally, consistent with acute respiratory distress syndrome. Open lung biopsy showed focal mild interstitial pneumonia. Multiple laboratory studies were negative for an infectious or an immune process. The patient remained on mechanical ventilation for 10 days and was discharged from the hospital 2 days after extubation. He continued to improve, with minimal symptoms and a return to normal activity levels several months after the incident with no continued treatment. Re-creation of his exposure was done under controlled circumstances, with air sampling revealing elevated air levels for cadmium and zinc and borderline levels of arsenic, manganese, lead, and iron.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
6/482. Transitions to independent living after ABI.One of the most challenging questions facing service providers and policy makers alike is the appropriate level of supervision for adults living in the community following a brain injury. In a 3-year province-wide study of people entering the community following brain injury rehabilitation, four individuals (out of 22 studied) made a transition from fully supervised living to lower levels of formal supervision during their first year in the community. The present study seeks to provide more information about these four individuals, the factors that allowed them to move to lower levels of supervision, and the perceived success of that transition. For each participant, the interviews conducted over the 1 year period in the initial study were reviewed in detail for information about independent living. In addition, each participant was interviewed again for this study, along with his significant other and three of the community programme staff who were most closely involved with his transition. To summarize, factors most salient in the success of transition included: (1) Roles and relationships of family and programme personnel; (2) staying away from drugs and alcohol; (3) availability of structured daily activities, including productive activity or community programme; (4) financial management; and (5) emotion and behaviour self-control. Secondary themes related to successful community living also included the availability of transportation and prior experience with community living since the onset of brain injury. These results offer the experience of four individuals in moving towards independent living. As such, they provide a starting point for further discussions of the process of supporting individuals to pursue the ultimate goal of independent living.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
7/482. Conservative treatment of acute Ormond's disease.Ormond's disease is a chronic inflammatory process of the retroperitoneum, which sometimes takes a very acute course. We report the case of a man with acute bilateral hydronephrosis. diagnosis was based on typical criteria seen by magnetic resonance imaging, which made biopsy unnecessary.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
8/482. Lesion development in Marburg's type of acute multiple sclerosis: from inflammation to demyelination.We report a patient who suffered from acute inflammatory CNS demyelination and underwent two consecutive diagnostic stereotactic brain biopsies during the early disease course. The first lesion was drawn 33 days after the onset of disseminated neurological symptoms. macrophages and T lymphocytes diffusely infiltrated small vessel walls and the white matter. mRNA for tumor necrosis factor alpha (TNFalpha) and inducible nitric oxide synthase (iNOS) was abundantly expressed. Myelin sheaths were entirely preserved. The second biopsy 76 days later showed confluent demyelinating lesions with a diffuse infiltration of macrophages that were positive for myelin debris, activation markers and TNFalpha and iNOS mRNA. IgG and C9neo deposits were found along myelin sheaths. The patient had received intravenous immunoglobulins (IVIG) prior to biopsy. Findings from this single patient affirm that demyelination follows the migration of inflammatory cells from the circulation into the white matter with subsequent inflammation and demyelination. inflammation alone may be sufficient to cause significant clinical deficits without demyelination. Inflammatory mediators such as TNFalpha and NO are involved at very early stages in the pathogenetic process. IVIG treatment may lead to the deposition of immunoglobulins and to the activation of the complement cascade, but the clinical relevance of this particular finding remains uncertain.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
9/482. Spontaneous pericardial hematoma in an infant.The finding of a pericardial hematoma is rare in the pediatric population. Its occurrence in an otherwise healthy 3-month-old infant is unprecedented in the literature. The hematoma was initially identified by echocardiography. Computerized tomography and magnetic resonance imaging did not contribute to the identification of the mass. An exploratory thoracotomy was necessary to rule out a neoplastic process. The final diagnosis of hemorrhagic pericarditis was made.- - - - - - - - - - ranking = 0.080265408746822keywords = process (Clic here for more details about this article) |
10/482. kerosene-induced severe acute respiratory failure in near drowning: reports on four cases and review of the literature.OBJECTIVE: The purpose of this study is to present an unusual respiratory and cardiovascular course after intoxication and near drowning in a river contaminated with kerosene. DESIGN: case reports and review of the literature. SETTING: intensive care unit of a university-affiliated hospital. patients: Four patients after near drowning. INTERVENTION: Supportive only. RESULTS: The four patients developed acute respiratory failure. Cardiomyopathy was present in three patients and a persistent hypokalemia in two patients. The onset of the symptoms was delayed, which led to underestimation of the severity of their illness. Two of the four patients died. The diagnosis of hydrocarbon intoxication was based on bronchoalveolar lavage results, neutrophilic alveolitis with the presence of lipid-laden macrophages, and evidence of lipoid pneumonia from the autopsy performed on one victim. One patient who clinically deteriorated and another who developed a severe restrictive pulmonary disorder were treated with corticosteroids, which were effective only in the latter patient. CONCLUSIONS: Acute kerosene intoxication in a near-drowning event often results in severe respiratory and cardiac failure, with a high fatality rate. Treatment with corticosteroids may lead to a rapid improvement in lung function.- - - - - - - - - - ranking = 1keywords = alveolar (Clic here for more details about this article) |
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