Retropupillary iris-claw intraocular lens implantation in aphakic patients

Purpose: To evaluate the outcomes of implantation of an iris-claw intraocular lens (IC-IOL) in retropupillary position in aphakic patients. Methods: We conducted a prospective interventional study, including 36 aphakic eyes with inadequate capsular support. The postoperative examination included best-corrected visual acuity (BCVA), intraocular pressure (IOP) measurement, central corneal thickness (CCT), and anterior segment examination with emphasis on the anterior chamber reaction and shape of pupil. Follow-up was done for 3 months. Results: Thirty-six eyes of 34 patients, including 22 right eyes and 14 left eyes were included. Indications for surgery were complicated cataract surgery in 38.9% (n = 14), aphakia in 27.8% (n = 10), pseudophakic bullous keratopathy in 16.7% (n = 6), dislocated posterior chamber IOL (PCIOL) in 11.1% (n = 4), IC drop in 2.8% (n = 1), and subluxated PCIOL in 2.8% (n = 1). Postoperatively, the visual acuity improved by at least two lines in 32 (88.9%) and worsened in four (11.1%) eyes at the end of three months. Mean postoperative IOP at the end of the third month was 12.42 mmHg (standard deviation [SD] 2.57; range 11.55�.29 mmHg). The mean postoperative CCT at the end of the third month was 542.42 microns (SD 13.77; range 537.76�7.07 microns). Sixteen eyes (44.4%) had horizontally oval pupil, eleven eyes (30.6%) had round pupil, and nine eyes (25%) had irregular pupil. Twenty-three eyes (63.9%) presented with significant anterior chamber reaction and seven eyes (19.4%) had corneal stromal edema on postoperative day 1. Conclusion: Our study demonstrated that retropupillary IC-IOL implantation in eyes without adequate capsular support is an effective and safe procedure with a good visual outcome and fewer complications.

Serum and salivary sialic acid as a biomarker in oral potentially malignant disorders and oral cancer.

Background: Aberrant glycosylation is the universal feature of cancer and components of various glycoconjugates, such as sialic acid is found to rise in various malignancies. The objective of this study was to evaluate the serum and salivary sialic acid in oral potentially malignant disorders (OPMD) and oral cancer (OC) to investigate the possibility of using this as a diagnostic marker. Materials and Methods: The study included 85 subjects, who were grouped as control (30), OPMD patients (25), and oral cancer patients (30). Serum and unstimulated whole saliva was collected from subjects of all groups and sialic acid estimation was done using spectrophotometry. The results were tabulated and analyzed statistically. Results: The mean serum sialic acid levels in normal, OPMD, and oral cancer group were 7.515, 19.620, and 55.235 mg/dL, respectively, whereas the levels of salivary sialic acid were 1.5113, 2.3302, and 9.0304 mg/dL, respectively. A very highly significant rise (P < 0.005) in serum and salivary sialic acid was observed in the study subjects compared with that of the control. Conclusions: The present study showed a significant and gradual increase in serum and salivary sialic acid from control to oral potentially malignant disorders to oral cancer. From this study we can suggest that sialic acid can be used as a reliable biomarker. As this monosaccharide is observed in saliva in detectable quantity, saliva can be used as a diagnostic medium for screening and early detection of oral cancer.

The effect of the aerobic training on morphological and histochemical characteristics of tibial anterior muscle in rats fed with high fat diet

The aim of this study was to investigate the effect of high fat diet and different frequencies of swimming programs in the tibial anterior muscle in male Wistar rats. In conclusion, the aerobic training during two days/week and five days/week caused injuries in muscle fibers and the high fat diet did not cause statically significant results compared to normal diet.

El objetivo de este estudio fue investigar el efecto de dietas ricas en grasas y diferentes frecuencias de natación, en el músculo tibial anterior, de ratas machos Wistar. El entrenamiento aeróbico, durante dos y cinco días por semana, causó lesiones en las fibras musculares y la dieta alta en grasa, no produjo resultados estadísticamente significativos, en comparación con la dieta normal.

In vitro chemosensitivity profile of oral squamous cell cancer and its correlation with clinical response to chemotherapy.

CONTEXT: Oral cancers represent a disparate group of tumors with diverse clinical behavior and chemosensitivity profile. Currently, it is difficult to predict whether a tumor will respond to chemotherapy and which drug(s) will achieve the maximum clinical response. AIMS: To study in vitro chemosensitivity profile of oral cancers and to correlate the in vitro chemosensitivity of oral cancer to clinical response to chemotherapy. SETTINGS AND DESIGN: Prospective study in a tertiary cancer care center. METHODS AND MATERIAL: We prospectively studied the chemosensitivity profile of 57 untreated, advanced, unresectable oral cancers to cisplatin, methotrexate, 5-fluorouracil and their combinations by using histoculture drug response assay (HDRA) and correlated them to the clinical response to chemotherapy. STATISTICAL ANALYSIS USED: Chi Square test. RESULTS: Biopsy samples were successfully histocultured in 52/57 (91%) cases. Of these 52 evaluable patients, 47 had primary gingivo-buccal cancers and five had tongue / floor of mouth cancers. Based on the assay, 27 (52%) tumors were sensitive to cisplatin, 27 (52%) to methotrexate, 24 (46%) to 5-fluorouracil, 38 (73%) to combination of cisplatin and methotrexate and 36 (69%) to combination of cisplatin and 5-fluorouracil. Of these, 31 patients with good performance status received two cycles of chemotherapy using one or more of these test drugs. There was a significant correlation (p=0.03) between the in vitro chemosensitivity and the clinical response. Negative predictive value of the test was 80%, positive predictive value-69%, sensitivity-79% and specificity -71%. The overall accuracy of the assay was 74%. CONCLUSIONS: We found HDRA to be a fairly good predictor of chemo-response of oral cancer.

Crown augmentation using modified bilayered restoration for anchorage: a case report.

An ankylosed tooth can be suitable for obtaining orthodontic anchorage. However, if such a tooth lacks adequate clinical crown height, the anchorage will not be effective. In those situations surgical luxation or restorative crown augmentation is suggested. This case report is about the restorative treatment of an ankylosed, infraoccluded tooth to enhance the anchorage for forced orthodontic eruption of impacted maxillary canines. A crown augmentation in the form of a modified bilayered (sandwich) restoration using GIC, Composite resin and Silver amalgam on left maxillary first molar (26) was successful in sustaining the anchorage for forced eruption and alignment of impacted canines.

Rituximab (anti-CD20 monoclonal antibody) in lymphoproliferative malignancies: Tata Memorial experience.

Rituximab has been used extensively in lymphoproliferative disorders. We evaluated the results of 64 consecutive patients treated between 2001 and 2004 at our institution. This included 54 males and 10 females. The median age was 54 years (range 17 to 85 years). One-fourth of patients were above 60 years. The histology was aggressive NHL in 35, indolent NHL in 22 and 7 cases were diagnosed as CLL. Among NHL, sixteen were in early stage (I/II) and the remaining forty-one were in advanced stage (III/IV) of disease. B symptoms were present in 47% of cases. A total of 33 were de novo cases and 31 were previously treated. Rituximab monotherapy was used in 17 cases. Rituximab was used in combination with chemotherapy in the other 47 cases. Infusional toxicity included anaphylaxis in one, hypotension in one and minor infusional reactions in four others. The patient who developed anaphylaxis required discontinuation of further Rituximab. Growth factors were used in 25 patients. Febrile neutropenia occurred in 19 patients. The overall RR (CR + PR) was 72%. One patient had stable disease and progressive disease was documented in 17 patients. A total of seven patients died, three due to progressive disease, three due to chemotherapy related toxicity and one due to an unrelated cause. We conclude that Rituximab is a valuable addition to the treatment armamentarium of lymphoproliferative disorders.

A phase II study of gemcitabine and cisplatin in patients with advanced hepatocellular carcinoma.

The primary objective of this study was to determine the response rates of a combination of gemcitabine and cisplatin in unresectable hepatocellular carcinoma (HCC) in Indian patients. The secondary objectives were to evaluate the toxicity, time to progressive disease and overall survival for this combination. Chemonaive patients with histopathologically proven, bidimensionally measurable, stage Ill or IV unresectable HCC were enrolled into this study. All the patients were required to have a Zubrod's performance status not greater than 2, should not have undergone prior radiotherapy and were required to have adequate major organ function. Patients received gemcitabine (1250 mg/m2 intravenously over 30 to 60 min) on days 1 and 8, and cisplatin (70 mg/m2 intravenously over 2 hours) on day land every 21 days. Response assessment was done by a Computed Tomography scan after every two cycles of chemotherapy. From May to December 1999, 30 patients were enrolled in the study; they were all eligible for efficacy and toxicity analysis. Six (20%) patients achieved a partial response and 13 (43%) patients demonstrated stable disease with 11 (37%) patients showing disease progression. The median time to progression was 18 weeks (range 1 to 74 weeks) and the median duration of response was 13 weeks (range 4 to 68 weeks). The 1-year survival rate was 27% and the median overall survival was 21 weeks (95% CI: 17 to 43 weeks). WHO grade 3 and 4 anemia was seen in 11 (37%) and 2 (7%) patients, respectively. Four (13%) patients each experienced grade 3 and 4 neutropenia and grade 3 and 4 thrombocytopenia was seen in 2 (7%) patients each. Major, non-hematologic toxicities were grade 4 elevated bilirubin levels and grade 3 oral toxicity, in 1 patient (3%) each. This regimen was well tolerated and did show activity in Indian patients with advanced unresectable HCC. There is a need to further evaluate this combination in order to define its role in the treatment of HCC.

Reactions and their management.

The uneventful response to chemotherapy in leprosy is marked by clinically disturbing episodes encountered in 20-30% of patients and these phenomena are called "reactions". Generally they are classified as reversal reaction (type-1) and erythema nodosum leprosum (type-2). The cutaneous menifestations are: (1) Type-2 reactions in LL, BL types constituting erythema nodosum leprosum, erythema multiforme, erythema necroticans, subcutaneous nodules, lepromatous exacerbation. (2) Type-1 reactions in borderline and tuberculoid leprosy. The other manifestations include: Acute neuritis, lymphadenitis, arthritis, oedema of the hands and feet, ocular lesions, etc. Sequelae of reactions are: Paralytic deformities, non-paralytic deformities, extensive scarring and renal damage. A simple guideline to identify the risk-prone cases has been narrated. Prednisolone in standard dosage schedule as recommended by WHO is now being widely used in control programmes.

Fixação de enxerto cutâneo em malha de espessura total com sutura ou cola de fibrina / Fixation of full-thickness mesh skin using suture or fibrin glue

Avaliou-se a influência da cola de fibrina, derivada do veneno de serpente, na fixação e integração de enxerto de pele. Foram utilizados nove cães, sem raça definida, com peso médio de 15kg. Foi induzida ferida de 4I4cm de área, na face crânio-proximal dos antebraços direito e esquerdo. Um enxerto de espessura total foi colhido da região torácica e expandido por meio de expansor de pele. No membro direito o enxerto foi estabilizado no leito receptor por meio de pontos isolados simples; no esquerdo foi fixado pela aplicação de cola de fibrina e oito pontos de sutura. O sítio doador foi fechado empregando-se retalho cutâneo bipediculado. As bandagens do leito receptor foram oclusivas e não aderentes e aplicou-se pomada de neomicina com bacitracina. A troca de bandagens ocorreu diariamente até o sétimo dia de pós-operatório e, posteriormente, a cada três dias. A área de sobrevivência do enxerto foi obtida pela subtração das áreas não viáveis e total medidas com fotomicroscópio Nikon conectado a um sistema de análise de imagem KS-300 aos três, sete, 15 e 30 dias de pós-operatório. Para a avaliação microscópica, a área do enxerto foi colhida em três animais aos sete, 15 e 30 dias de pós-operatório. Não houve diferença entre momentos de avaliação e técnicas de fixação quanto à área de enxerto viável. Os enxertos fixados com cola apresentaram estágio de reparação mais avançado em todos os momentos. Concluiu-se que a cola de fibrina derivada do veneno de serpente tem moderado poder adesivo e, pela análise microscópica, favorece a integração do enxerto cutâneo em malha de espessura total.

Effect of fibrin glue derived from snake venom on the viability of autogenous split-thickness skin graft

The aim of this study was to analyze the effect of snake venom derived from fibrin glue on the viability of split-thickness skin graft. Nine crossbreed dogs were used. Full-thickness skin segments measuring 4X4 cm were bilaterally excised from the proximal radial area on each dog. A split-thickness skin graft was harvested from left lateral thoracic area using a freehand graft knife, and was secured to the left recipient bed using several simple interrupted sutures of 3-o nylon (sutured graft). A split-thickness skin graft was harvested from the right lateral thoracic area using a graft knife. Fibrin glue derived from snake venom was applied to the recipient bed, and 8 equidistant simple interrupted sutures of 3-0 nylon were used to secure the skin graft (glued graft). Viable and nonviable areas were traced on a transparent sheet and measured using a Nikon Photomicroscope connected to a KS-300 image analysis system. The skin graft and recipient bed were collected from three dogs at day 7,15, and 30 postoperative. The glued grafs had statistically higher graft viability than sutured grafts. Histological examination showed that the tissue repair process in the glued grafts was more accentuated than sutured grafts. It was possible to conclude that fibrin glue derived from snake venom increased survival of autogenous split-thickness skin graft.

Disability prevention and management in leprosy: a field experience.

Bombay Leprosy Project has conducted operational research into cost effective ways of using therapeutic management for prevention of disabilities (POD). The goal of achieving this are broadly divided as 1) prevention of impairments and disabilities [POID] and 2) prevention of worsening of disabilities [POWD]. About 33-56% of newly registered leprosy patients already have clinically detectable nerve function impairment [NFI], often no longer amenable to MDT. An analysis of 892 leprosy cases treated with WHO-MDT stresses the need to focus attention on leprosy patients having > 5 skin lesions and multiple nerve thickening. Assessment of 454 disabled leprosy patients after 4 years indicated that the compliance for the services offered was good and it helped to improve the disability status in more than 50% of patients. In terms of effectiveness of the services, it was found to be effective in preventing worsening of deformities in hands and healing of trophic ulcers in feet. The methodology adopted has also helped us to develop an operational research model about the necessity to systematize the assistance and support to be given if the services can be routed through a public health facility. Because of the large numbers of leprosy patients with disability living in this region and the limited resources available, the services have to be targeted towards those who are most in need. The major advantage of such community based program is an attempt to eliminate the social stigma in the patients' families and the education of the community.

Comparative evaluation of effect of auxiliary retentive features on retention of complete cast crowns in teeth with adequate and inadequate crown height. An invitro study.

This study was done to evaluate the retention of complete cast crowns in teeth with adequate and inadequate crown height and to evaluate the effects of auxiliary retentive features on retention from of complete cast crowns. Thirty-six extracted human maxillary first premolars were obtained. In one group teeth were prepared to a constant height of 3.5 mm and in the second group teeth were prepared to a constant height of 2.5 mm. Each group was further subgrouped into three. In the first subgroup teeth were prepared conventionally, second subgroup proximal grooves were incorporated and in the third subgroup proximal boxes were incorporated. Tensional forces required to dislodge each cemented casting from its preparation was used for comparison of retention quality. These results were then subjected to an analysis of variance (ANOVA). The retention of crown in tooth with adequate crown height were statistically highly significant (P < 0001), compared to inadequate crown height and in boxes compared to grooves and conventional preparation.

Metabolic acidosis induced by cetrimide-chlorhexidine solution in hydatid cyst surgery.

A patient with a large hydatid cyst of the left lobe of the liver developed metabolic acidosis following rather liberal use of cetrimide-chlorhexidine solution as a scolicidal agent. The progress and management of this complication are described in the patient is being reported.