Free rectus abdominis muscle flap with plantar skingraft--a combined method of aesthetic and functional reconstruction of the heel.

A 16-year-old girl presented with a contusion of the left calcaneus that was treated by combined free rectus abdominis muscle flap and plantar skin graft. The main advantages of this procedure are that it replaces weight-bearing skin of the heel with histologically similar skin from the instep, and the fibrofatty pad of the heel with muscle; it provides a good cosmetic result in the heel, and the scars of the donor site are well-hidden.     

Abdominal insufflation-deflation injury in small intestine in rabbits.

OBJECTIVE: To investigate the effect of increased intra-abdominal pressure followed by abdominal deflation on small intestine with or without previous intestinal ischaemia. DESIGN: Randomised experimental study. SETTING: University hospital, Turkey. ANIMALS: 78 male New Zealand white rabbits. INTERVENTIONS: Experiment 1: 30 rabbits (10 in each group) were subjected to intra-abdominal pressure of 0 mmHg (controls), 15 mmHg or 25 mmHg for 60 minutes. Experiment 2: 48 rabbits were divided into four groups (n = 12 in each). The first comprised sham-operated controls. In the other 3, the superior mesenteric artery was occluded for 60 minutes. Reperfusion was started and maintained under intra-abdominal pressure of 0 mmHg, 15 mmHg, or 25 mmHg for one hour. Intestinal specimens were obtained five and 60 minutes after abdominal deflation in the pressure groups and at identical times in the other groups in both experiments. MAIN OUTCOME MEASURES: Intestinal malondialdehyde concentration, wet:dry intestinal weight ratio, and mucosal injury score under light microscopy. RESULTS: In experiment I the malondialdehyde concentration, wet:dry weight ratio, and mucosal injury scores were higher in the 25 mmHg group than in the other groups in both specimens. There was a significant increase in malondialdehyde concentration in the 15 mmHg group in only the 5-minute specimen. In experiment 2, except for the wet:dry weight ratio in the 5-minute specimen in the 15 mmHg group, there were significant increases in malondialdehyde concentration, wet:dry weight ratio, and mucosal injury score in all groups except controls in both specimens. Malondialdehyde concentration and wet:dry weight ratio were higher in the 25 mmHg group than in the 0 mmHg group in the 60-minute specimen, and higher than the 15 mmHg group in both specimens. Wet:dry weight ratio was less in the 15 mmHg group than the 0 mmHg group in both specimens. Mucosal injury score was higher in the 25 mmHg group than the other groups in both specimens. CONCLUSION: Increased intra-abdominal pressure for 60 minutes followed by abdominal deflation led to an ischaemia-reperfusion-like injury in normal small intestine in rabbits, and added to reperfusion injury in the ischaemic small intestine at an intra-abdominal pressure of 25 mmHg.     

Cramp finding: can it be used as a new diagnostic and prognostic factor in lumbar disc surgery?

In this prospective study, the validity and the importance of a new finding (cramp finding) in the diagnosis and outcome after lumbar disc surgery were tested. The test is performed with the person in prone position. Against a forceful knee flexion, the examiner holds the leg with one hand and applies a force to overcome the knee flexion. The finding is positive if the examined person feels a disturbing cramp in the leg or thigh. The study was performed between October 1997 and December 1999. Besides the cramp finding, the classical disc herniation examination, including mechanical and neurological findings, magnetic resonance (MR) imaging tests, and laboratory findings were checked pre- and postoperatively. The positive cramp finding in the operated group was 72% (n=133) preoperatively and straight leg raising (SLR) test was positive in all of them. Cramp finding was positive in 70%, 52%, 34%, and 8% of patients postoperatively in the first, 3rd, 12th and 24th months, respectively. The presented finding appears to be as valuable as the SLR, and especially contralateral SLR, tests in lumbar disc surgery. Cramp finding is also important in outcome evaluation.     

Formulation and in Vitro–in Vivo Evaluation of Buccoadhesive Morphine Sulfate Tablets

Buccoadhesive controlled-release systems for the delivery of morphine sulfate were prepared by compression of hydroxypropyl methylcellulose (HPMC) with carbomer (CP), which served as the bioactive adhesive compound. The release behavior of systems containing 30 mg of morphine sulfate and various amounts of the two polymers was found to be non-Fickian. The adhesion force was significantly affected by the mixing ratio of HPMC and CP in the tablet, and the weakest adhesion force was observed at a ratio of 1:1 (HPMC:CP). Interpolymer complex formation was confirmed between HPMC and CP in acidic medium by turbidity, viscosity, and FT-IR measurements. The amount absorbed (percentage of the drug loaded) of the controlled-release buccoadhesive tablets in six healthy volunteers and was 30 ± 5%.     

Does sodium nitroprusside reduce lung injury under cardiopulmonary bypass?

Objective: We hypothesized that direct pulmonary arterial infusion of sodium nitroprusside (SNP) would ameliorate lung injury under cardiopulmonary bypass. Methods: Experiments were performed on 12 adult mongrel dogs of both sexes weighing 20–28 kg. The animals were randomly divided into two groups of six animals each. All animals were subjected to total cardiopulmonary bypass (CPB) and moderate hypothermia (28°C core temperature). During total CPB, the aorta was clamped together with the pulmonary artery to prevent any antegrade flow to the lungs. After cardioplegic arrest for 120 min, the animals were rewarmed, weaned from CPB, and their condition stabilized for another 90 min. After the release of the aortic cross-clamp, the dogs received either a 5% glucose solution as a placebo (group I) or SNP (0.5 μg/kg per min) (group II), both infused into the pulmonary arterial line. The infusion was stopped after 60 min. To measure lung tissue malondialdehyde (MDA), water content and polymorphonuclear leukocytes count, lung tissue samples were taken before CPB and after weaning from CPB. In addition, alveolar-arterial oxygen difference (AaDO₂) for tissue oxygenation was calculated by obtaining arterial blood gas samples. Results: Values of MDA before CPB of 42.0±5.3 nmol/g of tissue rose to 67.6±5.7 nmol/g of tissue after weaning from CPB in group I (P=0.028). In group II MDA values also increased from 43.1±4.3 to 52.4±5.7 nmol MDA/g of tissue after weaning from CPB (P=0.046). The MDA increase in group II after CPB was found to be significantly lower than that for group I (P=0.004). The wet-to-dry lung weight ratio in the sodium nitroprusside group was 5.1±0.2, significantly lower than in the control group (6.8±0.4), (P=0.01). AaDO₂ increased significantly in group I (P=0.028). There was no statistically significant difference (P=0.065) between groups I and II. During histopathological examination it was observed that neutrophil counts in the lung parenchyma rose significantly after CPB in both groups. The increase in group I was significantly larger than that in group II (P<0.001). Conclusions: The results represented in our study indicate that pulmonary arterial infusion of sodium nitroprusside during reperfusion can reduce lung injury under cardiopulmonary bypass.     

Hydatid acute pancreatitis.

BACKGROUND/AIMS: Hydatid acute pancreatitis is a rare condition, mostly reported as case presentations. METHODS: A series of eight patients with hydatid acute pancreatitis, referred between January 1990 and January 2003, are reported. All patients presented acute pancreatitis confirmed with clinical presentation, radiologic examination and laboratory findings. All patients had elevated levels of blood amylase value (more than 500 U/L). Five patients (62%) had high bilirubin levels (2.1 to 3.4 mg/dl) during the initial hospitalization. Computed tomography findings revealed acute pancreatitis in four patients; two had associated pseudocyst formation. RESULTS: Endoscopic retrograde cholangiopancreatography was performed on all patients and revealed hydatid cystic material in the common bile duct secondary to cystobiliary rupture in all patients. All patients underwent endoscopic sphincterotomy that was performed after dilatation with extractor balloon, and hydatid material was removed in all. Six patients were operated on after the initial episode subsided. Drainage of the cyst, appropriate cavity management and T-tube drainage of the common bile duct was employed in all patients to control bile leakage after the operation. Scolices and hydatid membrane were detected during common bile duct exploration in all patients due to presentation of cystobiliary rupture. There was no mortality. Postoperative pulmonary infection and wound infection were encountered in one patient each. During two to 13 years' follow-up, one patient developed recurrent hydatid disease. Recurrent pancreatitis did not occur. CONCLUSIONS: Hydatid acute pancreatitis is a rare condition. However, it should be remembered in patients with abdominal pain, especially in endemic areas.     

Sacrococcygeal heart: a very rare differentiation in teratoma.

A mature teratoma was identified in a two-month-old girl who was operated for a sacrococcygeal mass. The cystic components of the mass were accidentally opened during surgery, and a solid, rudimentary organ resembling a heart emerged. It had a vascular pedicle and a pulsation like cardiac activity different from the infant's heart rate. The mass was totally excised together with the coccyx, and in histological examinations, it was diagnosed as a mature teratoma and a rudimentary heart. To the best of our knowledge, the case presented in this report is only the second case of a cardiac development in a teratoma in the literature. In the light of data obtained about this case and related literature, we consider that fetus-in-fetu and teratoma may not be irrelevant entities, and that they possibly have the same developmental malformation. We also suggest that such an intermediate case is a combination of fetus-in-fetu and teratoma.