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At least 109 records · Page 6Linked to original sources
PubMedDate not supplied

Reconstruction of small bile ducts using a parachute technique.

Benign or malignant stricture of extrahepatic bile ducts may result when small intrahepatic bile ducts are anastomosed to the jejunal loop after resection of extrahepatic bile ducts, hepatic parenchyma, and intrahepatic bile ducts. We applied a parachute technique, which has been used for fine vascular anastomosis, to hepaticojejunostomy in eight patients with either extrahepatic bile duct carcinoma or intrahepatic cholangiocellular carcinoma. One to four small bile ducts were anastomosed to the jejunal loop. No patient experienced a complication due to this anastomosis. Postoperative elevation of the serum bilirubin was transient, and all patients were discharged within 36 days after surgery. Although the follow-up period in this series is not yet long enough to evaluate the long-term outcome of this technique, the ease of the hepaticojejunostomy and good short-term results warrant farther clinical investigation of this technique.

Aged↗
PubMed2003

Severe pulmonary hypertension secondary to a parachute-like mitral valve, with the left superior caval vein draining into the coronary sinus, in a girl with Turner's syndrome.

A 17-year-old girl with Turner's syndrome underwent two cardiac operations due to severe mitral stenosis with pulmonary hypertension, caused by a parachute-like mitral valve. The anomaly was associated with persistence of the left superior caval vein, which drained to the coronary sinus, and non-compaction of the left ventricular myocardium. The association of these lesions is rare in patients with Turner's syndrome.

Adolescent↗
PubMed2004

Executive pay trends and golden parachute tax: a collision on the horizon.

Ironically, many corporations will likely discover that tying equity-based executive compensation more closely to performance will cost millions of dollars when there is a merger or acquisition. The reason: Internal Revenue Code Section 280G, which is designed to discourage "excess" parachute payments, often assesses a significantly higher toll on performance-based compensation than on time-vested equity payments. There is no magic remedy, but advance planning can often help mitigate the impact. This article describes the dilemma and suggests several approaches to the challenge.

Accounting↗
PubMed1990

A study of the influence of body weight and height on military parachute landing injuries.

The weights and heights of 1,880 male military parachutists were recorded, and landing injury rates were calculated according to the weights and heights of the jumpers. Only the weight significantly influenced the injury rate. The set of data (weight, injury rate) are best fitted with a parabola of the form: y = 43.14 - 1.22x + 0.01x2. The concept of the maximal operating weight of a parachute is discussed with its implications for medical standards and for jumps with extra equipment.

Adult↗
PubMedDate not supplied

[Continuous electrocardiographic recording during a first parachute jump].

The behavior of the cardiac rhythm under intense stress was studied with continuous electrocardiographic recording during the first jump with an automatic parachute in 13 members of the Universidad Nacional Autónoma de México sky diving club. There were 12 male (92.3%) and one female (7.68) with an average age of 22.8 years. A complete clinical history, 12 lead electrocardiogram and a treadmill stress test were performed two weeks before jumping. A two-channel Holter recording system was hooked up 30 min. before boarding the airplane and was turned off one hour later. The heart rate values were compared two weeks prior (64.5 beats/min), before (112.8 beats/min), during (170 beats/min) and after the jump (122.8 beats/min). The mean difference between each phase was statistically significant with p less than 0.001 values. The observed cardiac rhythm was sinus tachycardia in each case. In six cases (43.6%) 22 episodes of sudden decrease of the heart rate were seen and there were no major rhythm or conduction disturbances. The urinary catecholamines were similar in nine cases (69.2%) after the jump (x 51.2 micrograms/100 ml) and two weeks later in four control cases (x 10.3 micrograms/100 ml). We concluded there were no significant rhythm disturbances in the presence of an intense but brief stress condition in young healthy people. This study was classified as longitudinally, descriptive, experimental and projective.

Adult↗
PubMedDate not supplied

[Autogenic training in psychophysiological preparation for parachute jumps].

The efficiency of specific psychophysiological preparation--autogenic training--to parachute jumps was measured in two groups of cadets (test subjects and controls). Hetero- and autogenic training was carried out according to a scheme specially developed for this type of activity. The study of questionnaires and physiological data demonstrated that the specific psychophysiological preparation by means of autogenic training for a certain type of activity helped to develop active self-control over one's own state and emotions, alleviated tension, arrested adverse neurotic manifestations (sleep disturbances, depression, anxiety), contributed to the feeling of confidence in the successful completion of the jump and promoted positive tuning towards subsequent jumps.

Anxiety Disorders↗
PubMedDate not supplied

Surgical treatment of the "parachute mitral valve" complex in infancy (report of a case).

The case is presented of a 15-month-old male, affected by severe mitral valve regurgitation associated to aortic coarctation. The surgical treatment consisted in replacement of the mitral valve by a Hancock prosthesis followed, at a second state, by resection of the coarctation. The mitral insufficiency was secondary to an anomaly of the subvalvular apparatus of the "Parachute Valve" type. The incidence of defects associated to congenital mitral insufficiency is commented. The surgical indications for replacement or repair of these anomalies in infancy are discussed, and the surgical results achieved to data are analysed. Emphasis is made on the convenience, in case the corrective procedure requires valvular replacement, of implanting a low-profile biological prosthesis, which does not require anticoagulant therapy.

Aortic Coarctation↗
PubMed1995

[Mitral valve replacement for congenital parachute mitral valve].

A one-year-old boy was admitted with refractory congestive biventricular heart failure for medical treatment. On echocardiogram and cardiac catheterization revealed severe mitral stenosis from parachute deformity with pulmonary hypertension. During the operation, a single round orifice of 7 mm in diameter was detected in the mitral valve and adhered chordae were attached to a large single papillary muscle which was located at the posteromedial portion of the left ventricle. An isolated muscle band which was not attached to the mitral valve was observed at the anterolateral wall of the left ventricle. The mitral valve was replaced with 16 mm Carbo-Medicus prosthesis. Postoperative catheterization revealed residual pulmonary hypertension which was responsive to Imidarine infusion. He was discharged from the hospital without any sequelae, and has been on regimen including anticoaglant and vasodilator.

Heart Valve Prosthesis↗
PubMed1975

[Left atrio-ventricular parachute valve. Clinical, angiocardiographic and anatomic study, presentation of 6 cases].

Report of 6 cases of parachute left atrio-ventricular valve, combined with complex malformations in 4. Age ranged from 24 hours to 9 years, five of them being less than 3 months old. Four girsl and two boys. All were examined post-mortem and two had angiography and chateterization. This series was compared with those described in the world literature.

Abnormalities, Multiple↗
PubMed1993

The biomechanics of the knee during the parachute landing fall.

Because anterior knee pain syndrome is common in young paratroopers, we studied the role of the extensor mechanism in deceleration during the parachute landing fall (PLF) and the extent of knee flexion resulting from use of proper and variant landing styles. The subjects were novice paratroopers. Data were gathered by electromyography and by cinematography. At impact, a period of myoelectric silence was found that increased during training. Knee flexion angles varied from 130 degrees in the proper PLF to a low of 110 degrees in the toes-knees-nose PLF and to a high of 160 degrees in the hypergenuflexion PLF. The improper PLFs had a duration of deceleration shorter than that of a proper PLF, with maximal knee flexion occurring later in the landing act. Our results give direction to more specific lower-body training.

Adolescent↗
PubMed1994

[Arterial graft anastomosis in coronary surgery: side by side stitch with parachute technique].

We describe some techniques on arterial graft anastomosis that seem to be useful in coronary artery bypass. The graft is positioned with its cut surface upward, parallel to the left side of the coronary artery from surgeon's view point. The first stitch is placed from the inside of the coronary artery at the mid point of the anastomotic line adjacent to the graft. Then, a single stroke continuous sutures are carried out around the proximal corner of the anastomosis terminating at the one third point of the opposite side of the arteriotomy. After completion of this side by side stitch, the graft is approximated by pulling the suture in such a manner as parachute technique. The rest of the anastomosis can be performed in almost fore hand stroke. The time necessary for anastomosis is ten minutes at most.

Anastomosis, Surgical↗
PubMed1997

Repair of parachute mitral valve with multiple ventricular septal defects: a case report and literature review.

A case of parachute mitral valve (PMV) associated with multiple muscular ventricular septal defects (VSDs) is reported in a 16-year-old girl who presented with dyspnea and a cardiac murmur. In addition, there were deformities of the right ear lobe and kyphoscoliosis of the thoracolumbar spine since birth. A preoperative diagnosis was made using two-dimensional and Doppler echocardiography, cardiac catheterization and angiocardiography. PMV was found to be stenotic and mildly regurgitant. At surgery, mitral valvuloplasty, preservation of the native valve apparatus and Dacron patch closure of multiple muscular VSDs was achieved. The latest available case reports in the literature pertaining to PMV and associated deformities have been reviewed.

Abnormalities, Multiple↗
PubMed1997

Parachuting injury surveillance, Fort Bragg, North Carolina, May 1993 to December 1994.

Surveillance for parachute-related injuries was conducted at Fort Bragg, North Carolina, between May 1993 and December 1994. During this 20-month period, lower-extremity injuries (27% of all injuries), axial skeletal (back and neck) strains and sprains (19.3%), and closed head injuries (18.4%) were the leading causes of injury. The incidence of injuries requiring emergency care was 8/1,000 jumps. This rate is well within the jump injury planning estimate, suggesting that airborne training and operations are conducted in a safe and effective manner at Fort Bragg.

Adolescent↗
PubMed1999

Parachuting injuries during Operation Royal Dragon, Big Drop III, Fort Bragg, North Carolina, May 15/16, 1996.

On the night of May 15/16, 1996, the largest parachute assault of United States (US) and United Kingdom (UK) airborne forces in 52 years occurred at Fort Bragg, North Carolina. This paper describes the injuries sustained in that operation. A total of 4,754 (US, N = 3,066; UK, N = 1,688) aircraft exits were made, causing a total of 137 (US, N = 73; UK, N = 64) injuries in 117 personnel (US = 68; UK = 49). There were 15 hospital admissions (US = 8; UK = 7; p = 0.37) and no fatalities. The combined exit injury incidence was 24.6 injured soldiers per 1,000 exits. The US exit injury rate was 22 injured per 1,000 aircraft exits and the UK rate was 29 injured soldiers per 1,000 aircraft exits. This difference was not statistically significant (p = 0.25). Lower extremity sprains, strains, and fractures accounted for the majority of injuries in US and UK forces. UK soldiers sustained significantly more of these potentially incapacitating injuries than US troops, 16.1 per 1,000 exits versus 9.1 per 1,000 exits, respectively (chi 2 = 4.07; p = 0.043; relative risk [RR] = 1.70; 95% confidence interval [CI] = 1.01, 2.86). The UK forces sustained significantly more closed head injuries than US forces, 7.1 per 1,000 exits versus 2.3 per 1,000 exits, respectively (chi 2 = 6.4; p = 0.011; RR = 3.13; 95% CI = 1.23, 7.93). The UK forces also had significantly more soldiers with multiple injuries than US forces (RR = 9.15; 95% CI = 2.5, 39.7). Factors that may have influenced differences in injury incidence include differences in weight of personal equipment and possible differences between the drop zones.

Adolescent↗