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Biomedical subjects

N Lal

Publications and source records attributed to N Lal.

11 recordsLinked to original sources
PubMed1992

Optimal number of biopsy specimens in the diagnosis of carcinoma of the oesophagus.

The study evaluated 48 patients with carcinoma of the oesophagus to assess the optimal number of biopsy specimens required to obtain the highest yield. Eight specimens were obtained from each patient and two specimens were placed serially in each of four vials. The first vial provided a positive diagnosis in 95.8% of cases. The addition of two more specimens (second vial) increased the yield to 97.9% and the fifth and sixth specimens increased the positive yield to 100%. There was no statistically significant difference in the yield according to the site and the type of growth.

Adult↗
PubMed1991

Thermally stimulated polarization studies of kidney stones. II. Effect of annealing and thickness.

To investigate the cause of the d.c. charged conductivity state of kidney stones, the effect of annealing and sample thickness on thermally stimulated polarization was studied. It was observed that the peak current decreased and the peak temperature rose with increasing annealing temperature and the sample thickness. The sharpness of the single peak decreased and the activation energy increased with both parameters. The results have been explained on the basis of the loss of water attached to calcium oxalate and calcium phosphate, denaturation of collagen and the ionic nature of the main constituents of the kidney stone.

Calcium↗
PubMed1991

Transverse and vertical asymmetry of bilateral craniofacial structures in repaired unilateral and bilateral complete cleft lip and palate cases.

Fifty repaired complete cleft lip and palate cases (38 UCLP and 12 BCLP) in the age range of 6 to 14 years were evaluated for transverse and vertical asymmetry using postero-anterior cephalograms. A total of nine bilateral landmarks, representing upper face, mid face and lower face were used. Results showed that asymmetry was not confined to any single plane of reference but manifested in both dimensions--transverse and vertical. The UCLP group had greater asymmetry of mid face than the BCLP group. Asymmetry was found to be extending to distant areas besides the contiguous structures.

Adolescent↗
PubMed1989

Malignant tumours of the digestive tract. A twenty five year study.

A twenty five year retrospective study of malignant tumours was carried out. Malignant digestive tract tumours were about 10% of the total. Segment distribution of the lesion showed highest incidence in large intestine (43.3 percent), oroparynx (34.5 percent), stomach (11.3 percent), oesophagus (6.5 percent) and small intestine (4.4 percent). The maximum cases (74.2 percent) were between 31-60 years, the youngest being a two month old female with rhabdomyosarcoma orpharynx and the oldest a 82 year old male with squamous cell carcinoma anal canal.

Adolescent↗
PubMed1977

The theory and practice of psychiatry in India.

A comprehensive overview of the past and present state of psychiatry in India, as well as of its successes and limitations, is presented. The dregree of awareness and acceptance by different sectors of the Indian population is discussed. The influence of religious beliefs and cultural practices is taken into account. The report also deals with morbidity in patients with various emotional disorders.

Attitude to Health↗
PubMedDate not supplied

Iliac aneurysmo-colonic fistula. A case report and review of literature.

A case of a 47 year old man with an aneurysmo colonic fistula is presented. This rare complication presents problems in diagnosis and management. The presentation of this case and operative management without the use of a graft is discussed along with a review of literature.

Aneurysm↗