Biomedical subjects

R H Kamel

Publications and source records attributed to R H Kamel.

7 recordsLinked to original sources

PubMed1996

Transnasal endoscopic surgery in juvenile nasopharyngeal angiofibroma.

A case of angiofibroma limited to the right posterior nasal cavity, nasopharynx and pterygopalatine fossa was operated upon transnasally under endoscopic control. The tumour was completely excised without complications. Endoscopic follow-up for the next two years and contrast computed tomography (CT) excluded any residual tumour or recurrence. The advantages, limitations and possible complications of this approach are discussed. It seems that in limited lesions of angiofibroma, the option of a transnasal endoscopic approach could be cautiously considered by experienced surgeons.

Adult↗

PubMed1995

Transnasal endoscopic medial maxillectomy in inverted papilloma.

This study comprised 17 cases of inverted papilloma, which were divided into two groups. The first group included 8 cases that lacked maxillary sinus involvement. They were subjected to intranasal endoscopic resection with safety margin. The second group included 9 cases involving the maxillary sinus with or without nasal extension. They were subjected to transnasal endoscopic medial maxillectomy. Follow-up for an average of 43 months in group 1 and 28 months in group 2 (excluding the 5 cases with less than 2 years of follow-up) showed no recurrence. The author realized that inverted papilloma can be divided into two groups from the anatomic and behavioral points of view and accordingly should be managed differently. For those lesions without involvement of the maxillary sinus, intranasal endoscopic resection is effective; for those lesions with maxillary sinus involvement, transnasal medial maxillectomy, which could be performed safely under endoscopic control, is recommended.

Adult↗

PubMed1992

Conservative endoscopic surgery in inverted papilloma. Preliminary report.

Inverted papilloma is noted for recurrence and occasional association with malignancy, leading most authors to recommend lateral rhinotomy as the initial surgical approach in all cases; however, conservative surgery has been reported to be effective in selective cases. Endoscopic control was used in the surgical treatment of three cases of inverted papilloma. In all three cases, the lesions were unilateral and localized, with limited extension into the sinonasal region, and they were not associated with malignancy or recurrent (as proved by endoscopy, computed tomography, and histopathologic examination). Total removal of the mass was achieved through a conservative intranasal approach. Endoscopic follow-up for periods ranging between 12 and 39 months, with an average of 23 months, failed to identify any recurrence. These findings point to the feasibility of applying this conservative endoscopic approach for total excision of limited lesions of inverted papilloma.

Adult↗

PubMed1991

Effect of enlarged adenoids on arterial blood gases in children.

The enlarged adenoid is a common disorder in children resulting in nasopharyngeal obstruction. Many authors suggest that increased nasal resistance to respiration may cause disturbances in the pulmonary ventilation and carry the risk of obstructive sleep apnoea and/or cardiopulmonary syndrome. This study comprised 30 children complaining of long-standing nasal obstruction due to enlarged adenoids. Adenoidectomy was performed and the arterial blood gases were measured before and one month after surgery. Twelve normal children were also included as controls. Statistical evaluation of the results showed that O2 saturation and arterial O2 tension (PaO2) were significantly low before the operation, and increased significantly after surgery. Arterial CO2 tension (PaCO2) was insignificantly low before operation, but decreased significantly after adenoidectomy. It was concluded that enlarged adenoid may be associated with ventilatory impairment which is reversible after adenoidectomy.

Adenoidectomy↗

PubMed1990

Enlarged adenoid and adenoidectomy in adults: endoscopic approach and histopathological study.

Adenoid enlargement is uncommon in adults and because examination of the nasopharynx by indirect posterior rhinoscopy is inadequate, many cases of enlarged adenoid in adults are misdiagnosed and accordingly maltreated. This study was conducted on 35 cases of enlarged adenoid aged between 20 and 42 years. The nasal endoscope was utilized to identify the adenoid mass. Adenoidectomy under transnasal endoscopic control was performed and all the excised material was sent for histopathological examination. Adenoidectomy resulted in marked improvement in 94 per cent of cases without major complications. Histopathological examination revealed non-specific inflammatory reaction in 15 cases (43 per cent), pure reactive changes, predominantly follicular hyperplasia, in two cases (6 per cent) and mixed pattern in 18 cases (51 per cent). Endoscopic follow-up for an average 17 months identified recurrence in only two patients. It was concluded that enlarged adenoid tissue in adults has some histopathological differences from that in children and adenoidectomy under transnasal endoscopic control is safe and reliable.

Adenoidectomy↗

PubMed1989

Nasal endoscopy in chronic maxillary sinusitis.

The role of the anterior ethmoids in the pathogenesis of chronic maxillary sinusitis is still a subject of controversy. Although the symptoms of maxillary sinusitis may be clinically dominant, many previous studies have showed that the origin of this disease was, in most cases, located within the anterior ethmoid region. This study included 100 Egyptian patients, suffering from chronic maxillary sinusitis (confirmed by maxillary sinoscopy), who were subjected to 'systematic nasal endoscopy'. It was found that all cases of chronic maxillary sinusitis were associated with anatomical variations and/or pathological abnormalities of 'the ostiomeatal area'. It is recommended, therefore, that during the diagnosis and treatment of chronic maxillary sinusitis, attention should be given to the region of the middle meatus and anterior ethmoid complex (or 'ostiomeatal area') for any anatomical variations and/or pathological abnormalities in order to avoid recurrence of maxillary sinusitis. This is the basis of the procedure of functional endoscopic sinus surgery.

Adolescent↗

PubMed1989

Endoscopic transnasal surgery in chronic maxillary sinusitis.

The treatment of chronic maxillary sinusitis aims at the re-establishment of proper aeration and drainage of the antrum. Middle meatal antrostomy offers ventilation and clearance of the antrum and has anatomical, physiological, physical and pathological basis. This work included 66 cases of chronic maxillary sinusitis, for whom 94 operations of endoscopic middle meatal antrostomy were performed (38 unilateral and 28 bilateral procedures). Any associated anatomical variations and/or pathological abnormalities at the ostiomeatal area were dealt with. Follow-up of these cases for periods ranging from four to 12 months showed that 95.5 per cent of the cases experienced subjective improvement. Endoscopically 96.8 per cent of the antrostomies were patent and 94.7 per cent of the maxillary sinuses were clear and regained healthy mucosa. The author concluded that middle meatal antrostomy, when done endoscopically, is a safe procedure with good results.

Chronic Disease↗