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J J Henderson

Publications and source records attributed to J J Henderson.

At least 19 recordsLinked to original sources
PubMed2004

Difficult Airway Society guidelines for management of the unanticipated difficult intubation.

UNLABELLED: Problems with tracheal intubation are infrequent but are the most common cause of anaesthetic death or brain damage. The clinical situation is not always managed well. The Difficult Airway Society (DAS) has developed guidelines for management of the unanticipated difficult tracheal intubation in the non-obstetric adult patient without upper airway obstruction. These guidelines have been developed by consensus and are based on evidence and experience. We have produced flow-charts for three scenarios: routine induction; rapid sequence induction; and failed intubation, increasing hypoxaemia and difficult ventilation in the paralysed, anaesthetised patient. The flow-charts are simple, clear and definitive. They can be fully implemented only when the necessary equipment and training are available. The guidelines received overwhelming support from the membership of the DAS. DISCLAIMER: It is not intended that these guidelines should constitute a minimum standard of practice, nor are they to be regarded as a substitute for good clinical judgement.

Adult↗
PubMed1997

The use of paraglossal straight blade laryngoscopy in difficult tracheal intubation.

In 10 cases of unexpected difficult tracheal intubation using the Macintosh laryngoscope blade, the larynx could not be seen. In each case, a good view was achieved using the Miller blade lateral to the tongue, which enabled tracheal intubation under direct vision. The results achieved using narrow, low-profile straight laryngoscope blades with this technique are reviewed. The improved view obtained with this technique is a consequence of reduced tongue compression as compared with the Macintosh technique. This leads both to an improved line of sight, and to a reduced risk of backward displacement of the tongue and epiglottis. In addition, the molar or retromolar variation of the technique reduces the intrusion of maxillary structures into the line of sight, so that a better view of the larynx is achieved for a given degree of soft tissue compression. Paraglossal straight blade laryngoscopy may have an advantage over use of the Macintosh technique when intubation proves unexpectedly difficult. It is perhaps time to question standard teaching about the role of the curved blade in such patients or, more particularly, whether the technique of laryngoscopy as currently taught is optimal. The paraglossal straight blade technique needs to be practised in routine intubation before it can be used with confidence in difficult cases.

Adult↗
PubMed1996

The value of skeletal scintigraphy in predicting the need for revision surgery in total knee replacement.

We have reviewed the results of 99mtech-netium-methylene diphosphonate (Tc-MDP) bone scintigrams performed on patients following total knee arthroplasty. In addition, 67gallium (Ga) citrate scintigrams were carried out sequentially on 29 patients. Three groups of patients were identified: those with asymptomatic knees (undergoing scans for other reasons); those with aseptic or septic loosening; and those with pain without radiologic evidence of loosening. There was good correlation between the results of the scans and the final outcome. We conclude that sequential 99mTc-MDP and 67Ga citrate scintigrams are useful for demonstrating the presence of aseptic and septic loosening in knee prostheses, and pain with a normal scan appearance is probably not due to loosening or infection.

Aged↗
PubMed1994

Abortion caused by Brucella abortus biovar 1 in a free-ranging bison (Bison bison) from Yellowstone National Park.

A near-term aborted bison (Bison bison) fetus was collected near Old Faithful geyser in Yellowstone National Park, Wyoming (USA). On necropsy, the fetus liver had a small capsular tear, and there was a small quantity of blood in the peritoneal cavity. Microscopic lesions included mild, purulent bronchopneumonia and mild, multifocal, interstitial pneumonia. Brucella abortus biovar 1 was isolated from fetal abomasal contents, lung, and heart blood.

Abortion, Veterinary↗
PubMed1992

The epidemiology of fractures and fracture-dislocations of the cervical spine.

A total of 717 fractures and fracture-dislocations of the cervical spine occurred in 657 patients in a 13-year period. Injury was commonest in the third decade of life. The levels most frequently injured were the second, fifth, and sixth. Injuries of the first and second cervical vertebrae commonly occurred together, and injuries involving the upper and lower cervical spine in the same individual occurred in 9 per cent of patients with fractures of C1 and C2. Odontoid fractures were the most frequent fractures in patients over 70 years of age, and formed the majority of fractures in patients over 80 years of age. It is recommended that if a fracture of the upper cervical spine is seen on radiographs, another fracture in the upper or lower cervical spine should be excluded. Patients aged 70 years and above who complain of neck pain after trauma should be suspected of having an odontoid fracture, until proven otherwise.

Adult↗
PubMed1992

The management of an old fused hip after the occurrence of paraplegia.

Two patients are reported who suffered traumatic paraplegia, and had a long-standing fused hip joint. Both required an excision (Girdlestone) arthroplasty to allow them to sit and one, who made a late but substantial neurological recovery, eventually underwent a total hip replacement. Both suffered thromboembolic and urinary complications. These may not have occurred if the procedures had been carried out earlier. Early mobilisation of the hip joint is recommended in these circumstances.

Adult↗