10 research outputs found
Splenic rupture as the presenting manifestation of primary splenic angiosarcoma in a teenage woman: a case report
<p>Abstract</p> <p>Introduction</p> <p>Primary splenic angiosarcoma is a rare neoplasm of vascular origin carrying a very poor prognosis, partly due to its high metastatic potential. This disease presents frequently with splenic rupture and hemorrhage. We report the case of a 17-year-old woman who presented with rupture of a primary splenic angiosarcoma.</p> <p>Case presentation</p> <p>The patient presented with diffuse abdominal pain and distention. Clinical examination revealed severe tenderness in the left upper abdominal quadrant, a palpable abdominal mass, and hemodynamic instability with a systolic arterial blood pressure of 75 mmHg and heart rate of 135 beats per minute. Blood tests revealed anemia (hemoglobin 7.0 g/dl) and thrombocytopenia (platelets 70 × 10<sup>9</sup>/liter). After initial fluid resuscitation and stabilization, abdominal ultrasound and computed tomography were performed, revealing a large quantity of intraperitoneal free fluid, an enlarged spleen, and a heterogeneous low-density signal within the splenic parenchyma, which showed varying degrees of contrast enhancement. At laparotomy a huge (weight 1530 g, diameter 19 cm) actively bleeding spleen was identified and splenectomy was performed. Histopathology showed a primary splenic angiosarcoma. After an uneventful recovery, the patient was discharged on the sixth postoperative day.</p> <p>Conclusion</p> <p>Primary splenic angiosarcoma is rare. Although this malignancy is usually encountered in advanced age, there have been a few reported cases among younger patients. The case reported here presented with splenic rupture, was treated by laparotomy and splenectomy, and the patient is disease free 16 months after surgery.</p
Primary Cavernous Hemangioma of the Thyroid Gland
A 78-year-old euthyroid patient presented for evaluation of a
symptomatic, slowly growing neck mass. Ultrasound scan revealed a
multinodular goiter and a hypoechoic nodule of the right thyroid lobe.
Total thyroidectomy was performed and the lesion was completely excised.
Definite diagnosis was obtained after histological examination of the
surgical specimen. Cavernous hemangiomas of the thyroid gland are
infrequent lesions which may escape diagnosis preoperatively. An effort
should be made not to rupture these lesions in order to ensure a
bloodless procedure
Sepsis: Prognostic role of apoptosis regulators in gastrointestinal cells
Background: Intestinal epithelial cell apoptosis has been reported in
sepsis as a mechanism of organ failure. The aim of this study was to
clarify the role of apoptosis-regulating proteins (bcl-2, bax,
cytochrome-c, and caspase-8) in septic rats by studying their expression
in gastric and intestinal epithelial cells.
Methods: Adult Wistar rats were subjected to the cecal ligation and
puncture (CLP) model of sepsis and randomly divided into two study
groups. Sixty-two animals were sacrificed 6, 12, 24, 36, 48, and 60 h
post-procedure, and 50 animals served as the survival study group.
Sham-operated animals (n = 40) were used as controls. Gastric and
intestinal tissue was excised, and immunohistochemical detection of
bcl-2, bax, cytochrome-c, and caspase-8 protein expression was
performed.
Results: In gastric mucosa, sepsis induced upregulation of bax and
downregulation of caspase-8 expression (p = 0.053 and p = 0.05,
respectively). Both bax and caspase-8 were upregulated as early as 6 h
post CLP and progressively decreased (p = 0.001, p = 0.004
respectively). In contrast, the expression of the anti-apoptotic bcl-2
was upregulated progressively during the sepsis syndrome (p = 0.03). In
intestine, sepsis induced a fourfold upregulation of the cytoprotective
bcl-2 (p = 0.0001), accompanied by a remarkable increase in bax (p =
0.002) and caspase-8 (p = 0.0001) expression and a decrease in
cytochrome-c expression (p = 0.02). The time distribution of the
apoptosis regulators followed the same pattern as in gastric tissue,
showing an upregulation of the proapoptotic bax and cytochrome c (p =
0.04) during the early phases and a progressively increased expression
of bcl-2 during the late phases (p = 0.0001). Bax expression in gastric
epithelium of subjects with septic syndrome was detrimental to survival
(p = 0.0001), whereas the expression of the cytoprotective bcl-2 in
intestinal epithelium appeared to favor a good prognosis (p = 0.0001).
Conclusions: Sepsis results in alterations of apoptosis regulators in
gastrointestinal cells. Alterations of bax and bcl-2 expression in
gastric and intestinal epithelial cells may predict the outcome in
septic rats
Prospective study of the incidence and risk factors of postsplenectomy thrombosis of the portal, mesenteric, and splenic veins
Hypothesis: Splenectomy is recognized as a cause of portal, mesenteric,
and splenic vein thrombosis. The exact incidence of the complication and
its predisposing factors are not known.
Design: Prospective observational cohort study. The median follow-up
time of the patients was 22.6 months.
Setting: University surgical clinic in a teaching hospital
Patients: A total of 147 consecutive patients who underwent splenectomy
in a 4-year period were enrolled in the study.
Interventions: Preoperative and postoperative evaluation included
ultrasonography with color Doppler flow imaging of the portal system,
results of blood coagulation tests, fibrinogen levels, D-dimer levels,
and complete blood counts. Operative sheets were recorded and reviewed.
When portal system thrombosis (PST) was diagnosed, a complete control
for acquired and congenital thrombophilia disorders was obtained.
Main Outcome Measures: Primary end points of the study were the
assessment of the incidence of postsplenectomy PST and the
identification of risk factors for its occurrence.
Results: Portal system thrombosis occurred in 7 (4.79%) of 146 patients
who underwent splenectomy. The age, sex, type or length of the
operation, and use of preoperative and postoperative thromboprophylaxis
with low molecular weight heparin did not prove to be significant
factors in the occurrence of PST. Platelet count of more than 650 X
10(3)/mu L and greater spleen weight (> 650 g) was associated with the
development of PST (P=.01, P=.03). Normal D-dimer levels on diagnosis of
the complication showed a negative predictive value of 98%. Two of the
affected patients were diagnosed with thrombophilia disorders. In a
median follow-up period of 22.6 months, no other case of PST was
recorded.
Conclusions: Postsplenectomy PST occurs in approximately 5% of
patients. Possible risk factors are thrombocytosis, splenomegaly, and
congenital thrombophilia disorders
Thyroid surgery: comparison between the electrothermal bipolar vessel sealing system, harmonic scalpel, and classic suture ligation
Background: This study was conducted to compare the outcome of total
thyroidectomy using the electrothermal bipolar vessel sealing system,
the harmonic scalpel, and the classic suture ligation technique.
Methods: This was a retrospective study of prospectively collected data
from 382 consecutive total thyroidectomies from September 2004 to August
2006. Patients were divided into 3 groups: group SL patients (n = 90)
underwent total thyroidectomy with the classic suture ligation
technique, group L (n = 148) with the electrothermal bipolar vessel
sealer, and group U (n = 144) with the harmonic scalpel. The main
outcomes measured were surgical and hospitalization time, intraoperative
and postoperative bleeding, postoperative hypocalcemia, and superior and
inferior laryngeal nerves injuries.
Results: The 3 groups were similar in terms of demographics, thyroid
gland weight and pathology, perioperative complications, and hospital
stay. Compared with the classic technique, surgical time was reduced
significantly by about 20% when the bipolar vessel sealer or harmonic
scalpel was used (93.3 +/- 12.5 vs 74.3 +/- 14.2 and 73.8 +/- 13.8 min,
P = .001, and P = .001, respectively).
Conclusions: Both the bipolar vessel sealer and harmonic scalpel are
safe, useful, and time-saving alternatives to the traditional suture
ligation technique for thyroid surgery. Because no differences were
observed regarding these 2 devices, the choice should be made based on
the surgeon’s preferences and experience. (c) 2008 Excerpta Medica Inc.
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