Biomedical subjects

Xiangqun Wang

Publications and source records attributed to Xiangqun Wang.

2 recordsLinked to original sources

PubMed2005

Multi-dimension aspiration control mode in phacoemulsification.

PURPOSE: Multi-dimension aspiration control mode was put forward in this study. Accuracy of multi-dimension aspiration control model was compared to simple traditional pedal control model. METHODS: Induced by high aspiration pressure (200-250 mmHg), hard nucleus (> OR = Grade III ) of senile cataract was chopped before phacoemulsification in 170 patients (174 eyes). Ninety-one patients (94 eyes) accepted multi-dimension aspiration control model in which aspiration direction, distance and targets prevention were adjusted by phaco-tip besides traditional pedal control. Another 79 patients (80 eyes) were compared as reviewed group, aspiration of which was controlled simply by traditional pedal control. Postcapsular rupture rates (PCRR) were compared between two groups. RESULTS: Multi-dimension control model could make the terminal effects cooperate with phacoemulsification more precisely and protect post capsular from damage (chi(2) =5.41, P < 0.02). CONCLUSION: Multi-dimension control model could improve the accuracy of aspiration effects and protect postcapsular from damage.

Humans↗

PubMed2002

[Clinical significance of accumulated energy complex parameter in phacoemulsification].

OBJECTIVE: The accumulated energy complex parameter [AECP, AECP = actual power (AP) x time (T)] was put forward and used to analyze the correlation between phacoemulsification energy and postoperative complication. METHODS: Ninety-two cases with senile cataract who underwent phacoemulsification were observed. The correlation between AECP and postoperative corneal edema rate (CER) was analyzed. The difference of AECP between the method of divided-conque and that of epi-capsular rotated-chipping was compared for the same hard nucleus (IV) cataract extraction. RESULTS: The positive correlation was observed between AECP and CER (r = 0.974, t = 5.643, P < 0.05). The difference of the average AECP values existed between the two methods (t = 2.947, P < 0.01). The AECP and CER were lower in the method of divided-conque than that in epi-capsular rotated-chipping. CONCLUSION: AECP can be used as a dynamic index to control the phacoemulsification energy in order to decrease CER predictably. Our study suggests that AECP provide an important integrated energy index to evaluate phacoemulsification.

Adult↗