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Pleural effusions in the medical ICU: prevalence, causes, and clinical implications.

OBJECTIVE: To determine the prevalence and causes of pleural effusions in patients admitted to a medical ICU (MICU). DESIGN: Prospective. SETTING: MICU in a tertiary care hospital. PATIENTS: One hundred consecutive patients admitted to the MICU at the Medical University of South Carolina whose length of stay exceeded 24 h had chest radiographs reviewed daily and chest sonograms performed within 10 h of their latest chest radiograph. RESULTS: The prevalence of pleural effusions in 100 consecutive MICU patients was 62%, with 41% of effusions detected at admission. Fifty-seven of 62 (92%) pleural effusions were small. Causes of pleural effusions were as follows: heart failure, 22 of 62 (35%); atelectasis, 14 of 62 (23%); uncomplicated parapneumonic effusions, seven of 62 (11%); hepatic hydrothorax, five of 62 (8%); hypoalbuminemia, five of 62 (8%); malignancy, two of 62 (3%); and unknown, three of 62 (5%). Pancreatitis, extravascular catheter migration, uremic pleurisy, and empyema caused an effusion in one instance each. Heart failure was the most frequent cause of bilateral effusions (13/34 [38%]). When compared with patients who never had effusions during their MICU stay, patients with pleural effusions were older (54+/-2 years, mean+/-SEM, vs 47+/-2 years [p=0.04]), had lower serum albumin concentration (2.4+/-0.1 vs 3.0+/-0.01 g/dL [p=0.002]), higher acute physiology and chronic health evaluation II scores during the initial 24 h of MICU stay (17.2+/-1.1 vs 12+/-1.2 [p=0.010]), longer MICU stays (9.8+/-1.0 vs 4.6+/-0.7 days [p=0.0002]), and longer mechanical ventilation (7.0+/-1.3 vs 1.9+/-0.7 days [p=0.004]). No patient died as a direct result of his or her pleural effusion. Chest radiograph readings had good correlation with chest sonograms (p<0.0001). CONCLUSION: Pleural effusions in MICU patients are common, and most are detected by careful review of chest radiographs taken with the patient in erect or semierect position. When clinical suspicion for infection is low, observation of these effusions is warranted initially, because most are caused by noninfectious processes that should improve with treatment of the underlying disease.

Age Factors↗

Agenesis of the ductus venosus and its correlation to hydrops fetalis.

Absence of the ductus venosus is a rare vascular anomaly. We report a late onset of a hydrops fetalis seen in a fetus at 34 completed weeks of gestation. A persistence of the cranial parts of the left and right umbilical veins and of the paired cranial vitelline veins with an absent ductus venosus led to a bilateral hydrothorax, ascites and skin-edema. Postnatally the hydrops resolved within 7 days most probably due to the change from the fetal to the adult circulation. The abnormal venous system was confirmed by angiography. Agenesis of the ductus venosus can manifest in two different morphologic patterns: The umbilical vein drains exclusively into the left branch of the intrahepatic portal vein or the umbilical vein drains into the inferior vena cava or directly into the right atrium by-passing the liver completely. In both patterns, the preferential direction of the flow towards the foramen ovale is not present. While the first pattern leads to hyperperfusion of the liver parenchyma, the latter would result in reduced perfusion and oxygenation. Our findings suggest that agenesis of ductus venosus might induce hydrops fetalis. We conclude, that in every case of hydrops fetalis the venous system should be evaluated by ultrasonography prenatally and/or immediately postnatally.

Adult↗

Meigs' syndrome with elevated CA 125: case report.

CONTEXT: Meigs' syndrome consists of a benign ovarian tumor accompanied by ascites and hydrothorax. Elevated serum CA 125 levels in postmenopausal women with solid adnexal masses, ascites and pleural effusion are highly suggestive for malignant ovarian tumor. However, patients with Meigs' syndrome can also have elevated serum CA 125 levels. The authors report a case of Meigs' syndrome with elevated CA 125 level. OBJECTIVE: This is a case report of Meigs' syndrome with elevated CA 125 level. CASE REPORT: A 65-year-old Brazilian woman had presented progressive dyspnea, weight loss and decline in general condition over the 7 months preceding admission to our service. In another hospital, the patient had been submitted to thoracic drainage due to pleural effusion. With recurrence of the pleural effusion and increase in abdominal volume due to ascites and a pelvic mass, the patient sought our service. Transvaginal ultrasound showed an extensive adnexal solid mass of 16.4 x 10.8 cm located in the pelvis without exact limits, and the serum CA 125 level was elevated. With a preoperative diagnosis of ovarian carcinoma, the patient was submitted to exploratory laparotomy, which revealed a left ovarian tumor. The frozen section diagnosis was thecoma. Total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. The histology of the specimen confirmed the diagnosis of thecoma. The patient was asymptomatic with a normal serum CA 125 level 20 months after the operation.

Aged↗

Obliteration of the lymphatic trunks draining diaphragmatic lymph causes peritoneal fluid to enter the pleural cavity.

Pathways of peritoneal fluids to the pleural cavity in the rat were investigated by light microscopy and transmission electron microscopy (TEM). Intraperitoneally injected India ink was demonstrated to enter the subperitoneal lymphatics through lymphatic stomata, and to drain through the subpleural collecting lymphatics, into the parasternal, paravertebral and mediastinal lymphatic trunks as well as the thoracic duct. Five to 10 min after the intraperitoneal injection of India ink, the parasternal lymphatic trunk was ligated at the third intercostal space. Thirty minutes, 1 h, or 2 h after the ligation of either the right or the left trunk, India ink was macroscopically recognized only around the ligated trunk. When the right and left trunks were simultaneously ligated, India ink leaked around both trunks. Five hours after the ligation of both trunks, a massive amount of ink was located in the interstitium of the anterior thoracic wall. TEM revealed carbon particles passing through gaps of the lymphatic endothelial cells into the interstitial space, and partly reaching the mesothelial surface lining the anterior thoracic wall. Results show that obstruction or narrowing of the lymphatic trunks draining the diaphragmatic lymph causes a hydrothorax, indicating that this is at least one mechanism causing this during continuous ambulatory peritoneal dialysis and diseases with ascites.

Animals↗

[Reproductive and developmental toxicity study of prednisolone farnesylate (PNF)--teratogenicity study in rabbits by subcutaneous administration].

The effect of Prednisolone farnesylate (PNF), a newly synthesized corticosteroid, on fetal development of the rabbit was studied. PNF was administered subcutaneously at dose levels of 0(control), 0.01, 0.05 and 0.25 mg/kg/day during the fetal organogenesis period. In the pregnant animals, PNF caused no abnormalities in clinical sign, body weight gain, food consumption, or autopsy findings at 0.01 and 0.05 mg/kg/day groups; the animals at 0.25 mg/kg/day group showed a reduction in body weight gain and food consumption. Two of 13 animals at 0.25 mg/kg/day group aborted. And hydrothorax, mucosal hemorrhage of the stomach, or fading of the liver were observed in some animals. In the fetuses, PNF was observed no abnormalities in external, visceral, or skeletal examination; slight increase of embryofetal mortality, or reduction of live fetal body weight and placental weight were observed at 0.25 mg/kg/day. The results suggest that the non-effective dose level of PNF is 0.05 mg/kg/day for pregnant females in general and reproductive toxicity, and for fetuses under the condition of this study.

Animals↗

[Single-dose toxicity studies of prulifloxacin (NM441) in mice, rats and dogs and the active metabolite (NM394) in rats].

Single-dose toxicity studies of prulifloxacin, a new antibacterial agent, were conducted in mice, rats and dogs. In addition, a single-dose toxicity study of (+/-)-6-fluoro-1-methyl-4-oxo-7- (1-piperazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline- 3-carboxylic acid (NM394), an active metabolite of prulifloxacin, was performed in rats. Prulifloxacin was administered orally, intraperitoneally (i.p.) or subcutaneously (s.c.) to mice and rats, and orally to dogs. NM394 was administered intravenously (i.v.) to rats. When prulifloxacin was administered orally or s.c., LD50 values were more than 5000 mg/kg in both sexes of mice and rats; when it was administered i.p., LD50 values were 1757 mg/kg in male mice, 1652 mg/kg in female mice, 915 mg/kg in male rats, and 1076 mg/kg in female rats. The lethal doses of this drug were more than 5000 mg/kg in both sexes of dogs by the oral route. The LD50 values of NM394 were 226 mg/kg in male rats and 238 mg/kg in female rats by the i.v. route. In mice, the major clinical signs observed following the administration of prulifloxacin were sedation, oligopnea, abnormal gait, piloerection, closed eye and tremor by the i.p. route and a scab at the site of injection by the s.c. route; in rats, decreased spontaneous locomotor activity by any of the three routes, oligopnea, lacrimation, hypothermia, piloerection and abnormal gait by the i.p. route, and a scab at the site of injection by the s.c. route; and in dogs, vomiting, reddening of the skin, and loose stool by the oral route. When NM394 was administered i.v., rats showed clonic convulsion and dyspnea. The site of injection was hyperemic, swollen and necrotic. Mice showed a decrease in body weight or an inhibition in weight gain when prulifloxacin was administered i.p. and rats showed the same effects when prulifloxacin or NM394 was administered by any of the above-mentioned routes. Macroscopic findings detected following the i.p. administration of prulifloxacin in mice were pale color of the liver and spleen, thickening of the liver, and adhesion of intra-abdominal organs; and in rats, hydrothorax, congestion and edema of the lung, adhesion of intra-abdominal organs, swelling of the kidney accompanied by fine yellowish-white foci, and atrophy of the testis. When NM394 was administered i.v. to rats, congestion of the lung was macroscopically observed.

Administration, Oral↗

Toxicity and blood concentrations of xylazine and its metabolite, 2,6-dimethylaniline, in rats after single or continuous oral administrations.

To cast light on whether the carcinogenic risk of 2,6-dimethylaniline (DMA), a metabolite of xylazine, may increase by ingestion of edible tissues from domestic animals treated with xylazine, the following studies of xylazine and DMA were performed. In Experiment I, male F344 rats received a single oral administration of 150 mg/kg of xylazine hydrochloride. Rats showed symptoms suggesting loss of sensation and pain immediately after the treatment. These signs had disappeared after 3 hr, but the animals died of hydrothorax and pulmonary edema by 9 hr. The plasma concentration of xylazine was 2.88 +/- 0.95 micrograms/ml at 15 min, and then decreased to 0.10 +/- 0.01 microgram/ml at 6 hr. The plasma level of DMA remained at 0.03 to 0.04 microgram/ml during the measurement period. In Experiment II, male F344 rats were fed a diet containing 1000 ppm of xylazine hydrochloride, regarded as the maximum tolerated dose, for 4 weeks. No clear clinical signs were evident and the plasma levels of xylazine and DMA were at the detection limit (0.02 microgram/ml) or less, although follicular cell hypertrophy of the thyroid was observed in all the treated animals. In Experiment III, male F344 rats were fed a diet containing 3000 ppm or 300 ppm of DMA for 4 weeks. Histological changes, such as atrophy of Bowman's gland and irregular arrangement of olfactory epithelial cells, were only observed in the olfactory epithelium of the 3000 ppm group. The plasma levels of DMA were 0.20 to 0.36 microgram/ml in the 3000 ppm group, but under the detection limit in the 300 ppm group. These results suggest that the probability of nasal carcinogenic effects of DNA on consumers via ingestion of edible tissues from food-producing animals treated with xylazine is extremely low, since DMA levels in the blood of rats subjected to continuous administration of high doses of xylazine remained under the detection limit.

Administration, Oral↗

Immunohistochemistry for the differentiation of peritoneal disseminated carcinoma of unknown origin.

We report a woman with ascites, hydrothorax, pancreatic tumor, left cystic ovarian tumor, and an elevated serum cancer antigen 125 level. Exploratory laparotomy was performed to determine peritoneal disseminated carcinoma of unknown origin. Immunohistochemical analysis demonstrated positive staining for carcinoembryonic antigen, trypsin, and progesterone receptor and nonspecific or negative reaction for calretinin, estrogen receptor, amylase, lipase, Wilms tumor gene 1 protein, and inhibin or chromogranin A. These results together with the morphology of tubular structure suggested the pathological diagnosis of adenocarcinoma with pancreatic characteristics and contradicted ovarian cancer or mesothelioma. Immunohistochemistry is an adjunct tool to differentiate the primary site of carcinomatous peritonitis.

Adenocarcinoma↗

Complications of percutaneous nephrolithotomy.

Of 582 patients who underwent percutaneous nephrolithotomy, 4% had complications. The most common complications were fever (23%) and bleeding necessitating transfusion (12%). Extravasation was seen in 7% of patients and transient ureteral obstruction in 6%. Other complications included pneumothorax or hydrothorax, pneumonia/atelectasis, paralytic ileus, nephrostomy-tube dislodgment or urine drainage from the flank lasting more than 1 week, significant infection, urinoma formation, renal pelvic laceration, ureteral avulsion, ureteropelvic or ureteral stricture, bowel injury, or escape of stone fragments into the retroperitoneum. Seven patients (1%) required immediate surgery: four to repair renal pelvic lacerations, one to repair a ureteral avulsion, and two to control bleeding after nephrostomy-tube removal when embolization failed. Four patients required delayed surgery for ureteral or ureteropelvic junction strictures, which may have been caused by a tissue reaction to the stones rather than by the procedure itself. There were two deaths--one from respiratory failure in a patient with severe interstitial pulmonary fibrosis and chronic renal failure and the other from myocardial infarction in an obese diabetic patient with hypertension.

Adult↗

Long-term results and quality of life in patients treated with transjugular intrahepatic portosystemic shunts.

OBJECTIVE: The purpose of our study was to determine long-term survival, shunt patency, and quality of life in patients after creation of a transjugular intrahepatic portosystemic shunt (TIPS). MATERIALS AND METHODS: We followed up 103 patients who underwent TIPS for a mean of 20.10 +/- 25.58 months (range, 1 day-92 months). Various statistical methods were used to analyze long-term survival, shunt patency, and correlation with Child-Pugh classification and indications for TIPS. The Rand 36-Item Health Survey 1.0 was used to assess quality of life over time. RESULTS: The cumulative survival rate was 68%, 60%, 50%, 41%, and 41% at years 1-5, respectively. The cumulative survival rate was significantly higher for patients classified as Child-Pugh class A or B versus those classified as class C (p < 0.01), as well as for patients with the original indication of variceal bleeding versus refractory ascites or hydrothorax (p < 0.01). No significant difference in survival rates was found between patients with Child-Pugh A and those with Child-Pugh B. The cumulative primary patency rate was 50%, 34%, 21%, 13%, and 13% at years 1-5, respectively, with assisted patency rate of 80%, 61%, 46%, 42%, and 36%. Cumulative secondary patency rate was 85%, 64%, 55%, 55%, and 55% at years 1-5. Mean follow-up time in 33 patients who completed quality-of-life questionnaires with one follow-up was 17.46 months. Scores after TIPS in all nine of the health categories were higher than those preprocedure with statistically significant improvement in four categories. The second follow-up was completed by 21 patients at a mean of 30.58 months after TIPS creation. Both scores after TIPS were higher than those before TIPS, and scores in five categories were further improved at the second surveillance (p < 0.0, only for health change), whereas in four categories, the scores were slightly worse. CONCLUSION: TIPS has positive efficacy both for controlling bleeding or ascites and for improving the quality of life. The precise impact of TIPS on long-term survival, however, requires further clarification.

Adult↗

Thoracoscopic pleurodesis.

Thoracoscopic pleurodesis for pneumothorax was performed on 23 patients (16 men, 7 women), including seven with chronic obstructive pulmonary disease, over a 12-month period. Single-lumen intubation with spontaneous ventilation were used making intrapleural insufflation unnecessary. Postoperatively the patients required chest drainage for 1-28 (mean 3) days and remained in hospital for 3-33 (mean 6) days. The 14 gainfully employed patients had 11-40 (mean 20) days' sick leave. Hydrothorax requiring pleurocentesis developed in one patient after thoracoscopy. Pneumothorax recurred in another immediately after removal of the chest drain, but resolved definitively after 2 more days of drainage. A patient with obstructive lung disease required ventilator management for a week after the operation, but otherwise no serious complications were observed.

Adolescent↗

[A case of tuberculous pyometrium concurrent with tuberculous pleurisy].

An 84-year-old woman began to have low fever below 38 degrees C with slight lassitude from June 19, 2002. Despite oral administration of Clarithromycin for 3 days, the fever did not subside and the lassitude increased, so she was admitted to our department. While inflammatory findings were noticed, the cause was not identified by blood and imaging examinations (thoracoabdominal CT, etc.). Although her tuberculin reaction was positive, symptoms indicative of pulmonary tuberculosis were absent. Administration of Cefotiam and Imipenem Cilastatin sodium was ineffective. Pyometra was diagnosed. After drainage, the uterine cavity was washed every day. On the basis of culture of fluid retained a few colonies of Gram-negative bacteria were isolated, but were not identified, Cefpirome was administered, whereupon the fever subsided gradually, but mild inflammatory findings remained. Even after discharge on July 24, the retention increased, so drainage and washing were done repeatedly. However, mild inflammatory findings persisted. She began to have a fever from September 17 and was readmitted. After admission, administration of Flomoxef sodium was started, but no improvement was seen. A small amount of hydrothorax appeared on the left. Thoracocentesis yielded a bloody, slightly turbid exudative. Acid-fast staining and Mycobacterium tuberculosis specific PCR of pleural effusion were negative, but adenosindeaminase was 87.4 U/l. Therefore, a diagnosis of tuberculous pleurisy was made. DNA/PCR of tubercle bacilli in the fluid retained in the uterus was positive, and re-retention was prevented by administration of anti-tuberculosis drugs. These findings suggest a strong possibility of tubercle bacillus having been the causative bacteria. Particularly in the case of the elderly, it appears important that pyometra be included in differential diagnosis as the cause of fever even without gynecological symptoms and that tubercle bacillus be considered the causative bacterium.

Aged↗

Ultrasonic aspiration hepatectomy for 136 patients with hepatocellular carcinoma.

AIM: To study the operative injury, post-operative complications, the hospitalization time, the post-operative survival rate of ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device in comparison with that of conventional techniques of hepatectomy. METHODS: A total 136 patients with hepatocellular carcinoma (HCC, including 12 patients in 1991 and 124 consecutive patients from July 1995 to December 2000) underwent ultrasonic aspiration in liver resection (group T) and 179 HCC patients received conventional hepatectomy during the corresponding period (group C). The results of the two groups were compared statistically. RESULTS: There was no significant difference in the mean operation time between group T (152+/-11 min) and C (144+/-11 min). No operation or hospital death occurred in both groups. In group T, the mean volumes of bleeding (463+/-15 ml) and blood transfusion (381+/-12 ml) were markedly less than those in group C (557+/-20 ml, and 507+/-18 ml, respectively, P<0.05). The mean hospitalization time of group T (8.9+/-0.6 d) was markedly shorter than that of group C (11.7d+/-0.6 d) (P<0.05). The incidence of complications in group T was markedly lower than in group C, post-operative jaundice occurred in 4/136 and 31/179, respectively (P<0.05), liver failure in 0/136 and 2/179, cholorrhea in 0/136 and 6/179, hydrothorax in 21/136 and 39/179 (P<0.05), ascices in 9/136 and 54/179, respectively (P<0.05 ). There was no significant difference in the 1-year survival rate between the two groups (P>0.05), while the 3-year survival rate of group T (64.2 % ) increased markedly as compared with that of group C (55.7 %) (P<0.01). CONCLUSION: The ultrasonic aspiration hepatectomy with a domestic new type of ultrasonic surgical device could evidently reduce the operative injury and post-operative complications, shorten the hospitalization time and prolong the survivals of HCC patients.

Adolescent↗

Ovarian granulosa cell tumor presenting as Meigs' syndrome with elevated CA125.

Herein, a rare case of ovarian granulosa cell tumor, presenting as Meigs' syndrome, with elevated carbohydrate antigen 125 (CA125), is reported. A 69-year-old woman was admitted for the investigation of abdominal fullness and dyspnea. A preoperative examination revealed a huge pelvic tumor and an abdominopelvic magnetic resonance image (MRI) assumed ovarian cancer. A chest computed tomography (CT) scan revealed pleural effusion. A laparotomy confirmed the huge mass to be an ovarian tumor. A total abdominal hysterectomy (TAH), with a bilateral salpingo-oophorectomy (BSO) and partial omentectomy, was performed. Although short-term intrathoracic drainage was required, the hydrothorax and ascites rapidly resolved in the postoperative period.

Aged↗

Uterine fibroid: an unusual cause of recurrent haemorrhagic pleural effusion.

A 51-year-old woman presented with dyspnoea due to pleural effusion, which repeatedly reaccumulated rapidly after tapping. A pelvic mass was present and she was considered to have disseminated ovarian malignant tumour. Total hysterectomy with bilateral salpingo-oophorectomy was performed, and the tumour was shown to be a necrotic uterine fibromyoma. After the operation the patient has been well, with no recurrence of the effusion. This is the twelfth reported case of the association of hydrothorax with uterine fibromyoma, and is a form of the rare pseudo-Meigs' syndrome.

Female↗

Tuberculosis in a wild subantarctic fur seal from Argentina.

The first case of tuberculosis is described in a wild subantarctic fur seal (Arctocephalus tropicalis) found on the Argentine coast. There was hydrothorax and white firm granulomatous lesions of 40-50 mm in diameter in the lungs. Lesions consisted of a central area of caseous necrosis, an intermediate zone of epithelioid and lymphocytic mononuclear cells, and a peripheral zone of connective tissue. Biochemical and drug sensitivity tests and inoculation of Guinea pigs confirmed the identification as Mycobacterium tuberculosis complex. Arctocephalus tropicalis is the fifth pinniped species in which the M. tuberculosis complex has been detected. Since subantarctic fur seals are widely distributed in the Southern Hemisphere, it is possible that the tuberculosis cases may have a common origin and could spread to other austral regions and species.

Animals↗

Single umbilical artery. Prenatal detection of concurrent anomalies.

Prenatal sonographic findings were reviewed in 30 fetuses with a single umbilical artery (SUA) to determine the reliability of ultrasound for detecting concurrent anomalies. Additional anomalies were identified in 15 fetuses, including 3 fetuses with minor anomalies and 12 fetuses with major or multiple concurrent anomalies. Minor anomalies observed in 3 fetuses included 1 case each of pelvic kidney, unilateral absent kidney, and mild cerebral ventricular dilatation. Major abnormalities detected in 12 fetuses involved a variety of organ systems and included cardiac defects, holoprosencephaly, skeletal dysplasia, hydrocephalus, omphalocele, hydrothorax, enlarged cisterna magna, and diaphragmatic hernia. Clinical and pathologic correlation showed that all fetuses were correctly categorized regarding the presence of other anomalies; none of the 15 fetuses in whom an SUA was considered an isolated finding had a significant anomaly at birth. Chromosome abnormalities were found in 6 of 12 fetuses with major abnormalities but in none of the 18 remaining fetuses. We conclude that prenatal ultrasound can reliably identify major concurrent anomalies in fetuses with SUA. In the absence of additional anomalies, prenatal detection of SUA should not alter obstetric management.

Abnormalities, Multiple↗

Multiple primary cancers in a case of chronic arsenic poisoning--an autopsy report.

This is an autopsy report of multiple primary cancers observed in a patient who had clinically been diagnosed as chronic arsenic poisoning. An 88-year-old man, non-smoker, had worked in an arsenic mine for 6 years from the age of 47. He had undergone operations for Bowen's disease and gastric cancer at ages 80 and 86, respectively. At autopsy, squamous cell carcinoma of the lung and a polypoid lesion in the piriform recess were found. Furthermore, microscopic examination revealed latent prostatic adenocarcinoma and oncocytoma in the kidney. The polypoid lesion of the piriform recess appeared to originate from the duct of the minor salivary gland in the pharynx, showing an adenoid cystic carcinoma-like pattern with squamous cell carcinoma in part. The cause of death was thought to be respiratory failure due to bronchopneumonia and pulmonary edema as well as hydrothorax, and chronic heart failure following ischemic heart disease. Bowen's disease was followed by four internal malignant tumors, even though the etiological relation between these cancers and arsenic is not clear.

Adenocarcinoma↗