Background: The aim of this study was to investigate the postoperative hemodynamic effects of nitroglycerin inhalation on patients with pulmonary hypertension undergoing mitral valve replacement surgery.
Methods: Twenty patients who underwent mitral valve replacement surgery were included in the study. In the surgical intensive care unit, at T0 (before the inhalation of nitroglycerin), basal systemic and pulmonary hemodynamics were recorded. Then, 2.5 [mu]g [middle dot] kg-1 [middle dot] min-1 nitroglycerin liquid nebulized by a 2-l gas flow of 40% oxygen and air mixture was administered to the patients who were diagnosed as having pulmonary hypertension (mean pulmonary arterial pressures > 25 mmHg). The same parameters were measured at the first (T1), third (T2), and fifth (T3) hours after the beginning of this treatment and 1 h after the end of nitroglycerin inhalation (T4).
Results: There were no statistically significant differences at T0, T1, T2, T3, or T4 with respect to heart rate, mean arterial pressure, systemic vascular resistance, cardiac index, mixed venous oxygen saturation, arteriovenous oxygen content difference, or arterial carbon dioxide tension. However, mean pulmonary artery pressure, pulmonary vascular resistance, and intrapulmonary shunt fraction were significantly lower, and the arterial oxygen tension/fraction of inspired oxygen ratio was higher at T1, T2, and T3 when compared to that of T0 and T4. 相似文献
Objective Teratoma is the most frequently encountered intracranial tumor at birth and constitutes 18–20% of all germ cell tumors. They
are usually located in pineal and suprasellar regions. The authors aim to report an extremely unusual presentation, location,
and appearance of a teratoma in a newborn.
Case report A soft tissue swelling in the vertex was detected in a 1-month-old girl. Neurological examination was normal. A big, cystic–solid
lesion beginning from pineal region and extending to the scalp was detected in magnetic resonance imaging. It is interesting
to note that cerebral venous angiography showed that the superior sagittal sinus (SSS) was divided into three branches at
the level of the lesion and they joined together distally. The tumor was excised totally. Histopathological examination revealed
the diagnosis of a mature cystic teratoma.
Conclusion A mature cystic teratoma mimicking parietal encephalocele is extremely rare. Germ cell tumors should be kept in mind in the
differential diagnosis of all midline lesions with unusual radiographic appearance. Cerebral venous angiography or MR angiography
must be performed for the diagnosis and the surgical planning in lesions located near SSS. 相似文献
Objective Sodium hydroxide matricectomy is a successful method for the treatment of ingrown toenails. This study was designed to evaluate the optimal sodium hydroxide application period providing high success rates with minimal postoperative morbidity. Materials and Methods Sixty-six patients with 225 ingrown nail edges were treated in three groups receiving 30-second, 1-minute, and 2-minute applications of sodium hydroxide. Each patient was reviewed postoperatively for pain, drainage, and tissue damage. The median long-term follow-up period was 14 months. Results The success rate of the therapy was 70.9% in the first group, 92.7% in the second group, and 94.4% in the third group. In all groups, about half of the patients experienced minimal pain within 48 hours following the operation, but only in the third group, 20% of the patients had minimal pain, which continued about 1 week. Drainage and tissue damage were minimal or mild in all groups and disappeared within 3 weeks in the first and second groups but were prolonged to 6 weeks in the third group. conclusion The success rate of 30-second application is significantly lower than 1-minute and 2-minute applications. Although the success rates of the latter two procedures are similar, the prolonged healing time is the disadvantage of the 2-minute application. We conclude that 1-minute application of 10% sodium hydroxide is simple, safe, and highly effective for the treatment of ingrown nails. 相似文献
Since it covers the lateral wall of the mastoid air system, the suprameatal triangle is of importance to otologic surgeons
during mastoidectomy. Because of this clinical importance, topographic anatomy of the suprameatal spine and depression was
studied on Anatolian skulls. In all, 363 male and 231 female skulls were studied. The most prevalent type of suprameatal spine
resembled a crest and was found in both sexes on the right (77.6%) and left (80%) sides. The absence of a suprameatal depression
was significantly higher in females (right 9.1%; left 8.7%) than in males (right 1.7%; left 2.5%). Suprameatal depressions
were mostly shallow in female subjects, but were mostly observed in males to be at a medium depth or deep.
Received: 5 January 1998 / Accepted: 19 March 1998 相似文献
Objective and design: The present study examined effectiveness of low-dose doxycycline (LDD) in combination with nonsurgical therapy on gingival
crevicular fluid (GCF) tissue plasminogen activator (t-PA) levels and clinical parameters in chronic periodontitis (CP) a
over 12-month period.
Methods: GCF samples were collected, probing depth (PD), clinical attachment level (CAL), gingival index (GI) and plaque index were
recorded at baseline, 3, 6, 9 and 12 months. CP patients (n = 65) were randomized to LDD or placebo groups. LDD group received
LDD (20 mg) b.i.d for 3-months plus and root planing (SRP), while placebo group was given placebo capsules b.i.d for 3-months
plus SRP. GCF t-PA levels were determined by ELISA. Friedman, Wilcoxon and Mann-Whitney test was used for statistical analysis.
Results: Significant improvement was observed in all clinical parameters in both groups over 12-month period (p < 0.01). LDD group
had lower PD, CAL and GI scores than placebo group at 6, 9 and 12-months (p < 0.05). GCF t-PA levels reduced in both groups
over 12-month period (p < 0.01). LDD group had lower GCF t-PA levels than placebo group at 6 and 9-months (p < 0.05).
Conclusions: These results provide additional information about usefulness of LDD therapy as an adjunct to nonsurgical therapy in long-term
management of periodontitis.
Received 8 May 2006; returned for revision 13 June 2006; accepted by J. Di Battista 12 July 2006 相似文献
Venous thrombosis is recognized as one of the most important complications of nephrotic syndrome (NS). In patients with NS, venous thrombosis may develop in the renal veins, the deep veins of the lower limb, and the inferior vena cava. Here, we describe a case report of an NS patient with multiple venous thrombosis in the right renal vein, the left iliac vein, the vena cava inferior, the right atrium, and the pulmonary arteries. Moreover, we describe the successful treatment of multiple venous thrombosis with prolonged thrombolytic treatment in spite of an increased risk of bleeding due to renal biopsy. 相似文献
Water is an essential nutrient and adequate intake and output of water is required for health maintenance. Water homeostasis is vital for life and optimal function and considerable interest surrounds the issue of recommendations for water consumption in healthy individuals. Few studies are available about self‐reported water intake and urine output. The aim of this study was to assess the quantity of water intake and urine output in 24‐h period in healthy young individuals. This prospective study was carried out on 31 students aged 18–24 years undergoing nursing education in a University during January 2011 in Sakarya, Turkey. Healthy young individuals were recruited for determination of the quantity of water taken in and urine excretion along 24 h; they recorded fluid input and urine output. The students collected the data during weekend break. In our study, the total daily fluid intake (mL) for females was 2082·6 ± 687·1 and the total daily fluid intake (mL) for males was 2720·8 ± 717·4. The total daily quantity of urine (mL) for females was 1623·4 ± 602·4 and the total daily quantity of urine (mL) for males was 1818·3 ± 420·6. This research may be the source for similar studies that could include seasonal changes, climates, cultures and different age groups. 相似文献
The current study presents the case of a 19-year-old male patient who was detected with an increased alanine aminotransferase and aspartate transaminase levels during a preoperative evaluation of the right inguinal hernia operation and was later found to have Abernethy malformation accompanied by multiple regenerative nodular hyperplasia and left intra renal inferior vena cava. Regenerative nodular hyperplasia accompanying these two abnormalities is extremely rare and to the best of our knowledge, such a case has not been reported to date. Abdominal ultrasound (US) and color Doppler US, dynamic abdominal magnetic resonance imaging (MRI), and portography examinations were performed and a type 2 abernethy malformation, partial malrotation of the inferior vena cava, and regenerative nodular hyperplasia were detected. We aimed to discuss the radiological signs of these two accompanying abnormalities with a literature review. 相似文献