BACKGROUND: Hypertrophic cardiomyopathy (HCM) is one of the less common forms of primary cardiomyopathies. There is little data available on HCM in Indian literature. AIMS: To assess the incidence and analyse the clinicopathological features of HCM. SETTINGS: Analysis of data of 15 years from a tertiary care centre. METHODS AND MATERIAL: The clinical and pathological data in fourteen cases of HCM with respect to their gross and microscopic features and clinical presentation were reviewed. RESULTS: Incidence of HCM amongst the autopsied primary cardiomyopathies (N = 101) was 13.9% (n=14). Males were affected more. Common presenting symptoms were exertional dyspnoea, angina and palpitations. Concentric and asymmetric hypertrophy was equally seen. Obliterative small vessel disease was noted in 50% of the cases. Although significant myofibre disarray (>5%) was seen in all fourteen cases, it could be demonstrated in only 40- 50% of an average of twenty sections studied. Type IA myofibre disarray was the commonest. Six of the fourteen patients died suddenly. Cardiac failure was the commonest cause of death. CONCLUSIONS: Myofibre disarray is a highly sensitive and specific marker for HCM only when considered in a quantitative rather than a qualitative fashion. In this context, the rationale for performing endomyocardial biopsy is to rule out mimics of HCM.

BACKGROUND: Cancer of the oral cavity is one of the commonest cancers among males. AIMS: To assess the aetiological factors, patient characteristics, treatment and the outcome in young patients with oral cancer. SETTINGS AND DESIGN: A retrospective descriptive study of patients under the age of 35 years with cancer of the oral cavity treated between 1982-1996, with the last follow-up till 2001, using the tumour registry data of Regional Cancer Centre (RCC), Trivandrum, Kerala, India. SUBJECT AND METHOD: The detailed clinical, treatment and follow-up data were obtained from the computerised records of RCC and recorded on a preset proforma. This was analysed with emphasis on age, sex, risk factors, site, histology, clinical extent and treatment methods and survival in the study group. STATISTICAL ANALYSIS: The survival analysis was carried by Kaplan-Meier method and the difference in survival was analysed using log-rank test. RESULTS: Out of 264 patients analysed, tongue was the commonest site identified in 136 (52%) patients followed by buccal mucosa in 69 (26%) patients. A male female ratio of 2.3:1 was observed with a significantly higher male preponderance in buccal mucosa (4.3:1). Prior exposure to tobacco or alcohol was noted in 59.4% patients, with more habitués in buccal mucosa cancer. Histological confirmation was present only in 83.7% patients and among them most were squamous cell carcinoma (85.9%). Radiotherapy, surgery or combined modalities of treatment were employed for majority of patients. The 5-year survival was 57.3%. T stage of the tumour was found to be significant in predicting disease free survival (P=0.03). CONCLUSIONS: The importance of early detection for clinical down staging is stressed. There is a need to investigate the aetiology of intra oral cancers in younger patients since a significant proportion (almost 40%) of these patients do not have associated risk factors for cancer.

OBJECTIVE: To compare the success, efficacy and complications of ureteroscopy (URS) and extra corporeal shock wave lithotripsy (ESWL) for the treatment of symptomatic small non obstructing lower ureteric calculi. SUBJECTS AND METHODS: This prospective non-randomised study was conducted simultaneously at two urological referral centres, included 280 patients with symptomatic small (4-10 mm) lower ureteric calculi (situated below the sacroiliac joint), with good renal function on intravenous urography. Patients were offered both the treatment options. One hundred and sixty patients chose ureteroscopy, whereas 120 patients were treated by ESWL. Standard techniques of ureteroscopy and ESWL were employed. Patients were followed-up to assess the success rates and complications of the two procedures. RESULTS: Ureteroscopy achieved complete stone clearance in one session in 95% of patients. In six patients ureteroscopy had failed initially and was later accomplished in second session improving the success rate to 98.7%. Two patients had a proximal migration of calculus that needed ESWL. Of the 120 patients treated by ESWL, 90% achieved stone free status at three months. Ureteroscopy was needed for twelve patients (10%) where ESWL failed to achieve stone clearance. There were no significant ESWL related complications. ESWL was administered on outpatient basis, while patients needed hospitalisation and anaesthesia for ureteroscopy. CONCLUSION: ESWL can be the primary mode of treatment for symptomatic small non-obstructing lower ureteric calculi as it is minimally invasive and safe. Ureteroscopy can be offered to patients who demand immediate relief or when ESWL fails.

AIMS: To evaluate the intraocular pressure and haemodynamic changes subsequent to insertion of laryngeal mask airway and endotracheal tube. SUBJECTS AND METHODS: The study was conducted in 50 adult patients. A standard general anaesthesia was administered to all the patients. After 3 minutes of induction of anaesthesia baseline measurements of heart rate, non-invasive blood pressure and intraocular pressure were taken following which patients were divided into two groups: laryngeal mask airway was inserted in group 1 and tracheal tube in group 2. These measurements were repeated at 15-30 second, every minute thereafter up to 5 minutes after airway instrumentation. RESULTS: A statistically significant rise in heart rate, systolic blood pressure, diastolic blood pressure and intraocular pressure was seen in both the groups subsequent to insertion of laryngeal mask airway or endotracheal tube. Mean maximum increase was statistically more after endotracheal intubation than after laryngeal mask airway insertion. The duration of statistically significant pressure responses was also longer after endotracheal intubation. CONCLUSION: Laryngeal mask airway is an acceptable alternative technique for ocular surgeries, offering advantages in terms of intraocular pressure and cardiovascular stability compared to tracheal intubation.

Massive gastric tube dilatation causing cardiomediastinal tamponade is an unusual cause of obstructive shock after transthoracic oesophagectomy. A 55-year-old female was operated for total transthoracic oesophagectomy. Twelve hours after the surgery, she developed hypotension and raised central venous pressure unresponsive to fluid infusion and ionotropes. X-ray chest showed a massively dilated stomach, which was causing intrathoracic tamponade. Suction applied to the nasogastric tube led to aspiration of 150-200 ml of fluid and a large volume of air, which led to resolution of the haemodynamic instability. A simple manoeuvre like nasogastric suction in postoperative case of oesophagectomy can serve as a diagnostic as well as therapeutic tool. It must be performed before resorting to invasive and expensive examination or intervention.

Morgagni hernia is a rare diaphragmatic hernia accounting for only 2% of the congenital diaphragmatic defects. A case of Morgagni hernia was diagnosed radiologically in a 12-months-old male with Down syndrome, with recurrent respiratory distress and chest deformity. The 2-dimensional echocardiography was normal. The diagnosis of Morgagni hernia was confirmed by barium studies. The patient underwent a corrective surgery at 18 months of age following which his symptoms subsided. Literature review revealed only 18 cases of Morgagni hernia with Down syndrome reported till date, with age of presentation varying from neonatal age group to 12 years of age. The mode of presentations varied from asymptomatic detection to severe respiratory distress. The possible mechanism of association and its clinical implication has been discussed. The case emphasises a need for diaphragmatic hernia to be looked for as a possible cause of respiratory distress in Down syndrome.

A rare case of a cavernous haemangioma in the interpeduncular cistern is reported. The patient, forty-five year old male presented with excruciating left sided trigeminal neuralgia and diplopia for the past one year. Examination revealed left third and fifth nerve paresis. Magnetic resonance imaging showed a well-defined, lobulated tumour in the interpeduncular cistern. The tumour was totally excised through a subtemporal route. Histology of the tumour revealed a cavernous haemangioma. Extracerebral location for a cavernous haemangioma is rare. An interpeduncular cavernous haemangioma has never been reported earlier in literature. The clinical and radiological features are discussed and relevant literature is briefly reviewed.

The erythrocytosis of Fallot's tetralogy may lead to spontaneous thrombosis at any site, but splenic vein thrombosis and variceal bleed is rarely a presentation of Fallot's tetralogy. A case of a 48 years old female with undiagnosed Fallot's tetralogy, presenting with variceal bleed due to splenic vein thrombosis, is reported. It is also interesting to note that the patient survived till this age without any medical or surgical treatment.

The management of idiopathic thrombocytopenic purpura (ITP) during pregnancy, especially with ongoing bleeding diathesis, has not been highlighted sufficiently in the literature. Aortocaval compression and reduction in uteroplacental circulation resulting in foetal hypoxia and acidosis, Mendelson's syndrome due to gravid uterus, trauma to airway with resultant haemorrhage and aspiration into lungs, compromised airway due to short neck, anasarca and heavy breast, limitation in using invasive monitoring and regional anaesthesia and uncontrolled bleeding leading to placental hypoperfusion and foetal hypoxia are some of the important risks. In the present case report, anaesthetic management for splenectomy during pregnancy complicated with pregnancy induced hypertension and bleeding diathesis secondary to ITP is described with reference to above risks.

End-tidal CO2 monitoring is an exciting non-invasive technology that is more commonly used in the emergency department, intensive care unit and in the prehospital setting. Its main use has been in verifying endotracheal tube position, during mechanical ventilation and cardiopulmonary resuscitation, but it is being studied and used for other purposes as well. The new American Heart Association guidelines require secondary confirmation of proper tube placement in all patients by exhaled CO2 immediately after intubation and during transport. This article covers the clinical applications of end-tidal CO2 monitoring with special reference to the paediatric patient.