The cardiac performance is regulated by the intergration of preload, afterload, contractility (inotropism), heart rate and synergy of ventricular contraction, which are the major determinants that govern the stroke volume and cardiac output. Valvular heart disease may be considered to impose two different types of stress on the cardiac chamber proximal to the lesion. There are either pressure overload(increased after load) or volume overload(increased preload). The compensatory mechanism of the pressure overload and volume overload offer to hypertrophy and dilatation of the chamber. Hypertrophy, increased muscle mass, calls upon the development of greater systolic force. Dilatation, overfilled chamber volume enables increased strength and extent of shortening by Frank Starling's mechanism. In these view, we shall discuss the hemodynamic parameters; cardiac output, stroke volume, ventricular end-diastolic pressure, and the rate of ventricular pressure rise(peak dp/dt), mitral valve gradient and pulmonary circulation. The authors had an opportunity to study 40 cases of mitral valvular heart disease which were accepted during the left ventricular angiography at the cardiac catheterization room and at the fields of operative findings during the period Jan. 1977, throught Sept. 1980, at the Department of Internal Medicine, National Medical Center. The following conclusions were drawn: 1) Cardiac index was 2.65 L/min/m2in average, among 18 cases with mitral stenosis and 2.54 L/min/m2 in average, among 15 cases with mitral valve area of less than 1.0 cm2. Cardiac index was 2.58 L/min/m2in average, among 19 cases with mitral stenoinsufficiency and 3.43 L/min/m2 in average, among 3 cases with pure mitral insufficiency. 2) The mean right ventricular end-diastolic pressure elevated more than 0-8 mmHg were found in 12 cases with mitral stenosis out of 18 cases and mean miral valve area was 0.8m2. The mean left ventricular end-diastolic pressure was also elevated more than 0-12 mmHg in 6 cases out of 12 cases with mitral stenosis in addition to right ventricular failure. These 12 cases of mitral stenosis had cardiac function more than class III clinically. 3) 15 cases with mitral valve area, less than 1.0cm2 demonstrated left ventricular diastolic filling pressure gradient (MVG) of 17.3mmHg in average, the pulmonary vascular resistance of 568 dyndsecd cm(-5) in average, and the right ventricular peak systolic pressure of 72mmHg in average respectively. In all instances, the right ventricular end-diastolic pressure was 11.2mmHg in average and right ventricular peak dp/dt was 571mmHg in average. 4) Among 22 cases with mitral insufficiency, and/or mitral stenoinsufficiency 16 cases showed mean left ventricular end-diastolic pressure elevated more than 0-12mmHg. 10 cases out of these 16 cases disclosed also right ventricular end-diastolic pressure elevated more than 0-8 mmHg. These 16cases of mitral insufficiency and/or mitral stenoinsufficiency had cardiac function more than class III clinically. 5) 16 cases with mitral insufficiency and/or mitral stenoinsufficiency who had mean left ventricular end-diastolic pressure more than 0-12 mmHg showed pulmonary vascular resistance, 358 dyndsecd cm(-5) in average, systemic vascular resistance, 1621 dyne/sec/cm5 in average and left ventricular peak dp/dt, 768-2102mmHg/sec in range. 6) Pulmonary hypertension elevated more than 50mmHg of pulmonary arterial systolic pressure was found in 14 cases out of 18 case with mitral stenosis and in 10 cases out of 22 cases with mitral stenoinsufficiency and/or mitral insufficiency. Pulmonary vascular resistance, however, was markedly variable.
Angiography ; Blood Pressure ; Cardiac Catheterization ; Cardiac Catheters ; Cardiac Output ; Dilatation ; Heart Rate ; Heart Valve Diseases ; Hemodynamics* ; Humans ; Hypertension, Pulmonary ; Hypertrophy ; Internal Medicine ; Mitral Valve ; Mitral Valve Insufficiency ; Mitral Valve Stenosis ; Pulmonary Circulation ; Stroke Volume ; Vascular Resistance ; Ventricular Pressure

Hypertensive encephalopathy is an acute clinical syndrome that shows central nerve dysfunction with sudden and marked elevation in blood pressure. But its pathophysiologic mechanisms, clinical courses and prognosis are still not clear. In order to study clinical manifestations and response to treatment in patients with hypertensive encephalopathy, we reviewed 45 patients with hypertensive encephalopathy who were admitted in Dept. of Internal Medicine, National Medical Center, from January 1975 to December 1984. The following results were obtained: 1) The ratio of male to female was 1.1:1. The peak age of incidence was in the 6th and 7th decade with mean age of 57.5 years. 2) Among 45 patients, only 29 had known history of hypertension and the average duration of hypertension was 8.1+/-3.6 years. 3) The most common sympotm was severe headache (68.9%). And altered consciousness, nausea and/or vomiting, focal neurologic signs and visual disturbance were also common symptoms in decreasing order of frequency. 4) Funduscopic examination showed hypertensive retinopathy in 20 of 24 (91.7%) patients and lumbar puncture revealed increased CSF pressure in 12 of 20 (60%) patients. 5) In most patients, the mean interval to symptomatic improvement was 2.1 days after administration of anti hypertensive agents, but in 6 patients with initial mean arterial blood pressure above 170mmHg, 4 patients showed delayed response and 2 patients were expired.
Antihypertensive Agents ; Arterial Pressure ; Blood Pressure ; Consciousness ; Female ; Headache ; Humans ; Hypertension ; Hypertensive Encephalopathy* ; Hypertensive Retinopathy ; Incidence ; Internal Medicine ; Male ; Nausea ; Neurologic Manifestations ; Prognosis ; Spinal Puncture ; Vomiting

The studies about factors influencing the retroprostheic membrane formation, one of major complications after keratoprosthesis implantation, and about histological characteristics of the retroprosthetic membrane were performed. The methods to inhibit formation and proliferation of membrane were also tried. Formation of the membrane according to corneal trephination size and the effects of lens removal to membrane formation were studied. The influence by the design of keratoprosthesis was also studied. Corticosteroid and SIMP (synthetic inhibitor of metalloproteinase) were applied topically to see the inhibitory effects of drugs to membrane. To evaluate the postoperative intraocular inflammation. Interleukin-1beta was assessed in the aqueous humor at postoperative 3 weeks. Regardless of trephination size, all trephination sites were replaced with opaque fibrous membranes. Histologically, in small trephination group (under 6mm) the membrane was regeneration of cornea showing corneal stromal fibroblast migration and proliferation and mature collagen. In large trephination group (over 7mm), the periphery of the membrane was compatible with corneal regeneration, but central portion was filled with granulation tissue. The removal of lens didn`t influenced the formation of membrane formation. In disc type keratoprosthesis implantation group, all the implants were extruded within 1 month due to retroprosthetic membrane formation. In cylinder type keratoprosthesis implantation group, the physical barrier of cylinder stopped the retroprosthetic membrane proliferation and spared the posterior surface of optic portion. The implants were not extruded for average 10 weeks. Corticosteroid and SIMP showed the effects of decreasing mature collagen formation in the membrane. The level of Interleukin-1beta at postoperative 3 weeks showed no difference according to different drugs and the highest level was checked in cylinder type keratoprosthesis implantation group.
Aqueous Humor ; Collagen ; Cornea ; Fibroblasts ; Granulation Tissue ; Inflammation ; Interleukin-1beta ; Membranes* ; Regeneration ; Trephining

It has been widely accepted due to its simplicity, safety and effectiveness to correct high myopia by epikeratoplasty. We evaluated clinical results of 23 cases of myopic epikeratoplasty over one year follow up. The uncorrected visual acuity improved in all cases and corrected visual acuity improved in 20 cases (91%). But, in 5 cases (22%), we experienced progressive loss of lenticular power more than 4 diopter of emmetropia and their clinical courses were also reviewed Two cases were both eyes of the same patient. The loss of lenticular power appeared as early in 5th week and even in 6th month postoperatively. We could not find any differences between this grolp of power loss and that of remained well corrected within 4 diopter of emmetropia, except preoperative spherical equivalent (-19 diopter vs -15 diopter), period of reepithelization (8.2 days vs 5.9 days), and mean age (25.8 years vs 31.1 years). But, only the difference of mean age was statistically significant (p<0.05). In addition, the surgical techniques the process of manufacturing tissue lenticule, and postoperative care might be document2d as possible factors.
Emmetropia ; Epikeratophakia* ; Follow-Up Studies ; Humans ; Myopia ; Postoperative Care ; Visual Acuity

I n some patients, eosinophilic gastroenteritis(EG) occurs in those with food allergy. We experienced a non-atopic asthmatic who had an EG associated with food allergy to fish and eggs, and blood eosinophilia. A skin prick test and RAST to causative food allergens showed a negative result. A fiber-optic endoscopic biopsy from the gastric mucosa showed an intense eosinophilic infiltration. We could find symptomatic improvement and a disappearance of eosinophilic infiltration in gastric mucosa after complete avoidance from the causative food and oral cortcosteroid. It was suggested that fiber-optic endoscopic biopsy might be needed to identify coexisting EG if an allergic patient with blood eosinophilia complains of severe gastrointestinal symptoms.
Adrenal Cortex Hormones/therapeutic use ; Asthma/*complications/drug therapy ; Case Report ; Endoscopy ; Eosinophilia/*complications ; Food Hypersensitivity/*complications ; Gastric Mucosa/pathology ; Gastroenteritis/*complications/diagnosis/pathology ; Human ; Male ; Middle Age

PURPOSE: This study was conducted to analysis the trends and states of external auses of mortality in Korea from 1985 to 1998. METHODS: This study was based on data published in 1985-1998 from the annual report of cause of death statistics of National Statistical Office. RESULTS: In the proportion of total death cases during 1985-1998, External causes of mortality was ranged from 11 percent to 15 percent. Death rate(per 100,000) of external causes of mortality(ECM) decreased recently from 85.7 in 1991 to 68.9 in 1998. Death rate of ECM in male was 2.6 times higher than that of female. Among total cases of ECM, the first leading cause of death was transport accidents. intentional self-harm was the second leading cause of death(26.8 percent in 1998). In trends of death rate(per 100,000) for ECM during 1885-1998, there were decreased for following causes of death; transport accidents, falls, accidental drowning and submersion, exposure to smoke, fire and flames, accidential poisoning by and exposure to noxious substances, Death rates of ententional self-harm and assault were increased during the periods. The age specific death rate increased with age for all ECM except for assault. The risk of death caused by ECM was higher in aged 65 and over than in ages 0-19 years among all ECM. The risk of death for male aged 65 and over were 6.9 times in transport accidents, 26 times in fall, 37 times in accidential poisoning by and exposure to noxious substances, and 18 times in intentional self-harm compared with 0-19 years. The risk of death for female aged 65 and over were 27 times in fall, 22 times in accidential poisoning by and exposure to noxious substances compared with 0-19 years. In seasonal variation of ECM cases for 1998. There was highest proportion in August(10.4 percent). The highest proportion by death seasion were winter(32.7 percent) in exposure to smoke, fire and flames, summer(27,7 percent) in fall, summer(52.4 percent) in accidental drowning and submersion, summer in 32.0 percent) in accidential poisoning by and exposure to noxious substances, spring(28.2 percent) in intentional self-harm, assault. and autumn(28.2 percent) in transport accidents. CONCLUSION: Above results suggest that a preventive education program for safety accidents should be developed by considering gender and age of the objecties and seasons of the year.
Accidental Falls ; Cause of Death ; Drowning ; Education ; Female ; Fires ; Humans ; Immersion ; Korea* ; Male ; Mortality* ; Poisoning ; Seasons ; Smoke

A hepatic hydrothorax is a pleural effusion that develops in patients with cirrhosis and portal hypertension in the absence of cardiopulmonary disease. It is a complication of end-stage liver disease, and a liver transplant is the treatment of choice. In our case, a reexpansion pulmonary edema occurred after evacuating 4,250 ml of ascites and aspirating 3,600 ml of the pleural effusion within 15 minutes aimed at visually improving the surgical field in a 46-year-old male patient receiving a liver transplant. 1 hour 30 minutes after aspirating the pleural effusion, the level of oxygen saturation decreased from 100% to 95%, and serosanguinous fluid spilled over from the endotracheal tube. We inserted a double lumen endotracheal tube to both separate and protect the unaffected left lung, and applied CPAP 10 cmH2O at the affected right lung. The reexpansion pulmonary edema was successfully treated using this supportive management.
Ascites ; Fibrosis ; Humans ; Hydrothorax* ; Hypertension, Portal ; Liver Diseases ; Liver Transplantation ; Liver* ; Lung ; Male ; Middle Aged ; Oxygen ; Pleural Effusion ; Pulmonary Edema*

Spindle cell lipoma is a relatively rare adipocytic neoplasm that is easily mistaken for a liposarcoma, and is histologically characterized by a mixture of uniform spindle cells and mature fat cells. It occurs predominantly in male patients aged 45~65 years, and in most cases it arises in the subcutaneous tissue of the neck or shoulder. We report a case of a 45-year-old woman with spindle cell lipoma arising from the left pleural cavity.
Female ; Male ; Humans

Xanthogranulomatous cholecystitis is an extremely rare benign inflammatory disease of the gall bladder characterized by yellowish focal nodular appearance with tissue necrosis and lipid-containing histiocyte (xanthomacell). Recently, we experienced a case of xanthogranulomatous cholecystitis. A 71-year old woman was admitted with the complaints of RUQ pain for 1 month. On abdominal ultrasound examination, there were diffuse gallbladder wall thickening, echogenic nodule with acoustic shadow, the calculous cholecystiti and the gall badder cancer were strongly suspected and the operation was performed. At operation the gall bladder was marked enlarged and wall thickening with two brownish, oval shaped, smooth surfaced stones. The specimen was revealed a xanthogranulomatous cholecystitis by the pathology.
Acoustics ; Aged ; Cholecystitis* ; Female ; Gallbladder ; Histiocytes ; Humans ; Necrosis ; Pathology ; Ultrasonography ; Urinary Bladder

Purpose: In delayed myelopathy (DM) from osteoporotic vertebral compression fractures (OVCF), the mechanisms of spinal cord impingement differ according to the stability of the fractured vertebra. This study examined the availability of a posterior surgery comprised of pedicle screw augmentation with polymethylmethacrylate (PMMA) and selective anterior reinforcement (PS-PMMA+SAR) according to the stability. Materials and Methods: This was a retrospective single-center study. The consecutive patients who had a PS-PMMA+SAR for a DM from OVCF and were followed up more than two years were reviewed. Thirty patients were eligible for this study. All patients used fenestrated screws for PMMA augmentation. Anterior reinforcement was selected according to the stability. The unstable type was done by filling the vacuum cleft with bone chips or PMMA, and the stable type was done by vertebral body anterior translation with/without an interbody bone graft. The radiological and functional outcomes were evaluated. Results: There were 20 unstable and 10 stable cases. The regional kyphotic angle was improved significantly from 31.3°±10.8° to 10.4°±8.3° (p<0.001). The anterior vertebral height ratio was improved significantly from 39.4%±17.1% to 86.4%±9.2% (p<0.001). The spinal canal invasion ratio was improved significantly from 39.2%±14.8% to 19.1%±10.8% (p<0.001). The walking ability was improved mostly by two Nurick’s grades (p<0.001). The Oswestry disability index was improved from 72% to 33% (p<0.001). Conclusion Posterior surgery with PMMA-augmented pedicle screws, and selective anterior reinforcement for DM from OVCF was available to achieve a good functional and radiological outcome.