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1.
Cureus ; 16(3): c162, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38440204

ABSTRACT

[This corrects the article DOI: 10.7759/cureus.43025.].

2.
Clin Pediatr (Phila) ; 63(5): 680-688, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38142360

ABSTRACT

This retrospective study utilized the National Electronic Injury Surveillance System (NEISS) database to identify pediatric emergency department (ED) patients with playground-associated craniofacial injuries between January 2012 and December 2021. A total of 25 414 patients were identified. The majority of injuries occurred in preschool and elementary school-age children (90.3%) and patients were more commonly boys (59.3%). Injuries most often involved the head/scalp (52.4%), face (30.4%), and mouth (11.9%). Infant (32.7%) and teen (40.0%) injuries most commonly involved swings, whereas preschool (23.1%) and elementary school (28.1%) injuries were mostly associated with slides and climbers, respectively. Most patients were treated in the ED and discharged to home (96.5%), a small portion required hospitalization (1.6%), and one death was reported. Although the majority of the injuries were relatively minor and resulted in same-day discharges, these injuries can result in serious physical harm, emotional stress, and unexpected financial burdens. Proper education and supervision regarding safe play is important to prevent these injuries.


Subject(s)
Facial Injuries , Play and Playthings , Humans , Retrospective Studies , Child , Male , Female , Child, Preschool , Adolescent , Play and Playthings/injuries , Infant , Facial Injuries/epidemiology , Facial Injuries/etiology , Emergency Service, Hospital/statistics & numerical data , United States/epidemiology , Craniocerebral Trauma/epidemiology , Craniocerebral Trauma/etiology
3.
Cleft Palate Craniofac J ; : 10556656231213170, 2023 Nov 05.
Article in English | MEDLINE | ID: mdl-37926980

ABSTRACT

OBJECTIVES: Evaluate the readability of online English and Spanish cleft lip and palate patient education materials. DESIGN: Review of free online materials. SETTING: English and Spanish language online patient education materials on cleft lip and palate were collected from American Cleft Palate-Craniofacial Association (ACPA) approved teams. PARTICIPANTS: American Cleft Palate-Craniofacial Association (ACPA) approved teams. INTERVENTIONS: English materials were analyzed using the Flesch-Kincaid, SMOG, and Coleman-Liau readability calculators. Spanish materials were analyzed using the Fry Graph, Fernandez Huerta, and INFLESZ calculators. A one-way analysis of variance (ANOVA) was used to test for variability between the readability tools. OUTCOMES: Readability levels were examined for both sets of materials. RESULTS: 171 (90.5%) teams provided English language materials online, with an average readability score calculated as 10.5 ± 2.9 (10th-11th grade). A total of 44 (23.2%) teams listed Spanish language materials online, with average readability score of 7.9 ± 1.2 (8th grade). ANOVA demonstrated statistically significant variability between the readability assessment tools (P < .01). CONCLUSION: Online cleft lip and palate patient education material provided by ACPA craniofacial teams were more available in English than in Spanish. Both sets of materials demonstrated readability levels above the recommended 6th-7th grade. Refining readability is associated with lowered healthcare costs and increased patient satisfaction.

4.
Cureus ; 15(8): e43025, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37680436

ABSTRACT

The integrated plastic surgery residency match is a highly competitive process. If performed wisely, medical research is an opportunity to differentiate applications from peers, and productivity is closely evaluated by residency programs. In this study, the authors aimed to characterize medical student research productivity for integrated plastic surgery residency programs and their respective medical schools. To this end, the authors performed a retrospective review of senior author publications from the 81 integrated plastic surgery programs from January 1, 2016, to December 31, 2020. The primary outcome was a publication with a medical student as the first author. Secondary outcomes included the number of faculty from each program, the geographic region of the program, and the ranking of associated medical schools. It was found that the average number of medical student first-author publications and faculty members per institution were 14.0 and 11.0, respectively. There was a positive correlation between the number of faculty members and several medical student first-author publications for a program (R = 0.54, P < 0.0001). The average number of medical student first-author publications was higher in the top 25 programs than for the remaining programs (P < 0.001), and most medical student first-author publications in the United States were produced by 10 plastic surgery programs. From these findings, it was concluded that these programs associated with higher-ranking medical schools produce greater numbers of medical student first-author publications. These analyses of medical student academic productivity should be a highly useful guide for current and future medical students as they strategize their successful match into plastic surgery.

5.
Craniomaxillofac Trauma Reconstr ; 16(1): 34-38, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36824181

ABSTRACT

Study Design: We designed a cross-sectional epidemiologic study to evaluate the influence of substance use on craniofacial injuries in a population of skateboard and scooter users. Objective: The primary outcome of our study was craniofacial injury. The secondary outcome was hospitalization. Methods: We report a cross-sectional study of patients reported to the National Electronic Injury Surveillance System (NEISS) from January 1, 2019, to December 31, 2020, in the United States. Patients were included in our study if they were evaluated in the emergency department (ED) for a skateboard- or scooter-related injury. Results: There were over 5396 total patients who presented to a NEISS-participating ED after skateboard- or scooter- related trauma during the study period. There were 1136 patients with a craniofacial injury (primary endpoint), and patients under the influence of alcohol or drugs had greater odds of experiencing a craniofacial injury than those not under the influence (odds ratio [OR]: 4.16, 95% confidence interval [CI]: 3.24-5.32, P < .0001). Four hundred-thirty patients were hospitalized (secondary endpoint), and patients under the influence had greater odds of being hospitalized than those not under the influence (OR: 2.83, 95% CI: 2.04-3.91, P < .0001). Conclusions: Alcohol and drug use while skateboarding or scootering drastically increases the likelihood of craniofacial injury and subsequent hospitalization and should be avoided whenever possible. The importance of wearing a helmet while operating these devices cannot be overstated.

6.
J Craniofac Surg ; 33(8): 2644-2649, 2022.
Article in English | MEDLINE | ID: mdl-36409846

ABSTRACT

Webbed neck is a rare condition characterized by bilateral subcutaneous bands, which extend from approximately the mastoid to the acromion. Given its rarity, the literature lacks a review of the techniques used in the repair of this condition. We performed a scoping review to define and summarize the surgical techniques been used in the treatment of webbed neck, with the goal of better equipping the surgeons' armamentarium. Two databases, PubMed and Scopus, were searched from inception through December 27, 2021. Studies were considered for inclusion if they (1) described the webbed neck condition and (2) reported results of surgical correction of this condition. Surgical outcomes and follow-up durations were reported as available. Twenty-two manuscripts were analyzed and included data on 60 patients. The most common syndrome associated with webbed neck was Turner syndrome (48 patients). The most frequently documented procedure technique was a Z-Plasty (38 patients). Other procedures described included: butterfly correction, V-Y Plasty, posterior cervical lift, skin excision, tissue expansion plus skin excision, T to M rearrangement, and subcutaneous fascial excision. Documented complications included hypertrophy of procedure scars or webbed neck recurrence. In summary, we present the first full literature review of the surgical techniques used in the repair of webbed neck. When selecting the technique for repair of the webbed neck, function and cosmesis are important considerations. Future studies should collect standardized outcomes data to appropriately assess and compare the described procedures.


Subject(s)
Skin Abnormalities , Turner Syndrome , Humans , Neck/surgery , Skin Abnormalities/surgery , Ear/surgery , Turner Syndrome/surgery , Tissue Expansion
7.
Craniomaxillofac Trauma Reconstr ; 15(4): 282-287, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36387321

ABSTRACT

Study Design: Cross-sectional study. Objective: Concurrent substance-use, including alcohol and drugs, increases the risks of many recreational activities. Our purpose was to determine the relationship between substance use and craniofacial injuries in a large population of patients experiencing trauma due to recreational motorized vehicle use. Methods: We report a cross-sectional study of patients reported to the National Electronic Injury Surveillance System (NEISS) from January 1, 2019 to December 31, 2019, in the United States. Patients were included in our study if they were evaluated in the emergency department (ED) for a recreational motorized vehicle-related injury. Primary outcome was craniofacial injury. Results: There were a total of 6,485 adult patients who experience an injury after recreational motorized vehicle trauma reported by NEISS-participating EDs during the study period. Of this, 1,416 (21.8%) patients had a craniofacial injury, and 201 patients with craniofacial injuries were under the influence of alcohol/drugs (201/1,416; 14.2%). Injured patients under the influence of alcohol/drugs experienced greater odds of sustaining a general craniofacial injury (OR 2.50, 95% CI: 2.07-3.01, P < .0001), including craniofacial fracture (OR: 2.98, 95% CI: 2.01-4.40, P < .0001), laceration (OR: 2.19, 95% CI: 1.51-3.16, P < .00001) and internal injury (OR: 2.33, 95% CI: 1.84-2.95, P < .00001) than injured patients not under the influence. Conclusions: Using recreational motorized vehicles under the influence of alcohol or drugs is not safe and increases the likelihood of craniofacial injuries, including fractures, lacerations, and internal injuries. As operating these recreational motorized vehicles under the influence is illegal, the law should be strictly enforced to prevent the occurrence of these injuries. Additional undertakings to increase helmet usage would be valuable.

8.
J Craniofac Surg ; 32(6): 2087-2090, 2021 Sep 01.
Article in English | MEDLINE | ID: mdl-34191776

ABSTRACT

PURPOSE: Substance use, including alcohol and drugs, has been found to amplify the risks associated with cycling. Our purpose was to determine the relationship between alcohol or drug use and facial injuries in a nationwide population of patients experiencing cycling trauma. METHODS: The authors report a cross-sectional study of patients reported to the National Electronic Injury Surveillance System from January 1, 2019 to December 31, 2019, in the United States. Patients were included in our study if they were evaluated in the emergency department for a cycling-related injury. Primary outcome was facial injury. RESULTS: There were a total of 6499 adult patients who experience an injury after cycling trauma reported by the National Electronic Injury Surveillance System-participating emergency departments during the study period. A total of 553 (553/6499; 8.5%) patients had a facial injury and 82 patients with facial injuries had alcohol/drug use recorded (82/553; 14.8%). The proportion of males with facial injuries was higher in the alcohol/drug group than the no alcohol/drug group (86.6% versus 76.4%, respectively; P = 0.04). Injured cyclists in the alcohol/drug group experienced greater odds of sustaining a facial injury (odds ratio: 2.21, 95% confidence interval: 1.71-2.84, P < 0.0001) and a facial fracture (odds ratio: 2.75, 95% confidence interval: 1.83-4.13, P < 0.0001) than injured cyclists in the no alcohol/drug group. CONCLUSIONS: Substance use while cycling is not safe and significantly increases the likelihood of a facial injury and of facial fractures. This prevalence of injuries would suggest that cycling under the influence should always be illegal, and the law strictly enforced.


Subject(s)
Facial Injuries , Pharmaceutical Preparations , Skull Fractures , Substance-Related Disorders , Adult , Cross-Sectional Studies , Facial Injuries/epidemiology , Humans , Male , Retrospective Studies , Substance-Related Disorders/complications , Substance-Related Disorders/epidemiology , United States/epidemiology
9.
Facial Plast Surg Aesthet Med ; 22(3): 164-169, 2020.
Article in English | MEDLINE | ID: mdl-32302216

ABSTRACT

COVID-19 is an emerging viral illness that has rapidly transmitted throughout the world. Its impact on society and the health care system has compelled hospitals to quickly adapt and innovate as new information about the disease is uncovered. During this pandemic, essential medical and surgical services must be carried out while minimizing the risk of disease transmission to health care workers. There is an elevated risk of COVID-19 viral transmission to health care workers during surgical procedures of the head and neck due to potential aerosolization of viral particles from the oral cavity/naso-oropharynx mucosa. Thus, patients with facial fractures pose unique challenges to the variety of injuries and special considerations, including triaging injuries and protective measures against infection. The proximity to the oral cavity/naso-oropharyngeal mucosa, and potential for aerosolization of secretions containing viral particles during surgical procedures make most patients undergoing operative interventions for facial fractures high risk for COVID-19 transmission. Our proposed algorithm aims to balance patient care with patient/medical personnel protection as well as judicious health care utilization. It stratifies facial trauma procedures by urgency and assigns a recommended level of personal protective equipment, extreme or enhanced, incorporating current best practices and existing data on viral transmission. As this pandemic continues to evolve and more information is obtained, the protocol can be further refined and individualized to each institution.


Subject(s)
Coronavirus Infections , Disease Transmission, Infectious/prevention & control , Facial Injuries , Infection Control/standards , Pandemics , Pneumonia, Viral , Triage/methods , COVID-19 , Clinical Protocols , Coronavirus Infections/transmission , Facial Injuries/diagnosis , Facial Injuries/therapy , Humans , Pneumonia, Viral/transmission
10.
Aesthet Surg J ; 40(2): 174-179, 2020 01 29.
Article in English | MEDLINE | ID: mdl-31250006

ABSTRACT

BACKGROUND: Opioid drugs have been a mainstay medication for the management of postoperative pain for several decades; however, in recent years there has been a push towards investigating alternative treatment options. Although ketorolac has been widely used by other medical and surgical specialties for analgesia, its utilization in plastic surgery has been widely debated. OBJECTIVES: The purpose of this study was to investigate the efficacy of ketorolac as an adjunct in postoperative pain management. METHODS: The authors performed a retrospective review of patients who underwent implant-based breast reconstruction after mastectomy between January 2012 and December 2016. Other risk factors, such as chronic anticoagulation, aspirin, or coagulopathies, were documented as well. RESULTS: There were 198 patients who met the inclusion criteria. The results demonstrated that patients who received ketorolac utilized significantly fewer narcotics than patients who did not: 80 mg vs 108.8 mg (P = 0.002), respectively. The results showed that patients who received ketorolac had a decreased length of hospitalization: 1.9 days vs 2.1 days (P = 0.04), respectively. CONCLUSIONS: Generous narcotic prescribing has received greater scrutiny in recent years. Aside from the risk of increased narcotic availability in the community, the side effects of nausea, puritis, and constipation delay patient recovery. These data show that patients who received ketorolac have a decreased length of hospital stay and lower narcotic use, suggesting ketorolac may be a safe and cost-effective adjustment to a multi-modal pain control regimen postoperatively.


Subject(s)
Breast Implantation/methods , Ketorolac/administration & dosage , Mastectomy/methods , Pain, Postoperative/drug therapy , Adult , Aged , Anti-Inflammatory Agents, Non-Steroidal/administration & dosage , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Breast Implants , Breast Neoplasms/surgery , Female , Hospitalization/statistics & numerical data , Humans , Ketorolac/adverse effects , Length of Stay , Middle Aged , Retrospective Studies
11.
Plast Reconstr Surg ; 141(6): 814e-817e, 2018 06.
Article in English | MEDLINE | ID: mdl-29750761

ABSTRACT

BACKGROUND: Ketorolac tromethamine (Toradol), a nonsteroidal antiinflammatory drug, is used with increased frequency given its success in postoperative pain control and the subsequent decreased need for narcotics. Its use has been limited in plastic surgery for fear of postoperative bleeding and hematoma formation. In this study of breast surgery patients, the authors investigated whether ketorolac increased the risk of postoperative hematoma formation. METHODS: After obtaining institutional review board approval, the authors retrospectively reviewed the records of patients undergoing breast surgery from January of 2012 through December of 2014. The authors compared the incidence of postoperative hematomas in patients who did, versus those who did not, receive ketorolac postoperatively. RESULTS: For the entire cohort, the overall hematoma rate was 2.8 percent. Of the patients who received ketorolac, the rate was 3.5 percent; of those who did not, the rate was 2.5 percent. Of the breast reduction patients, the rate was 4 percent in those who received ketorolac versus 3.2 percent in those who did not. Of the breast reconstruction patients, the rate was 4 percent in those who received ketorolac versus 3.2 percent in those who did not. CONCLUSIONS: Recently, the high rates of prescribing postoperative narcotics have received increased attention. Aside from the risk of increased availability of narcotics in the community, the side effects can delay patient recovery. Ketorolac is controversial for postoperative pain control because of the potential risk of bleeding, but in the authors' 3-year retrospective study, it was not associated with an increased risk of hematoma formation. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Hematoma/chemically induced , Ketorolac Tromethamine/adverse effects , Mammaplasty/adverse effects , Postoperative Complications/chemically induced , Female , Humans , Middle Aged , Pain, Postoperative/prevention & control , Postoperative Care , Retrospective Studies , Risk Factors
13.
Ann Plast Surg ; 70(6): 709-13, 2013 Jun.
Article in English | MEDLINE | ID: mdl-22868302

ABSTRACT

PURPOSE: There is a paucity of literature regarding the use of chaperones by surgeons when examining patients. Use of a chaperone not only makes the patient comfortable but also potentially protects the surgeon from perceived misconduct. This is especially true for plastic surgeons who examine sensitive areas commonly. The purpose of this study was to determine the current trends in chaperone use by plastic surgeons when examining patients. MATERIALS AND METHODS: A 23-question online survey was sent to all members of the American Society of Plastic Surgeons. Data collected online were analyzed using Student t test and Pearson χ test. A P < 0.05 was considered significant. RESULTS: Of the 4990 surgeons polled, 830 (16.6%) responded to some or all of the questions (707 [85%] male; 117 [14%] female). The overall chaperone use by plastic surgeons during all examinations of patients was 30%. This rate increased up to 60% while examining sensitive areas. Male surgeons reported a higher frequency of chaperone use than female surgeons (P < 0.001). Cosmetic surgeons had a higher rate of chaperone use compared to reconstructive surgeons (P = 0.001). Similarly, surgeons who had been in practice for more than 20 years reported a higher rate of chaperone use compared to surgeons in practice for less than 20 years (P = 0.032). Sixty-one (7.6%; 56 male and 5 female) surgeons reported being accused of inappropriate behavior by patients, of whom 49 (80%) did not have a chaperone present. There was no significant difference among male and female surgeons in rates of being accused of inappropriate behavior (7.9% vs 4.2%, P = 0.19). CONCLUSIONS: There was a higher rate of chaperone use by male plastic surgeons, surgeons with more than 20 years experience, and cosmetic surgeons. Despite the difference in chaperone use between the sexes, both had similar rates of being accused of inappropriate behavior during examinations by patients, and although these incidents were quite low, most had no chaperone present during those examinations.


Subject(s)
Medical Chaperones/statistics & numerical data , Practice Patterns, Physicians'/trends , Surgery, Plastic/trends , Female , Humans , Male , Medical Chaperones/trends , Practice Patterns, Physicians'/statistics & numerical data , Professional Misconduct , Surgery, Plastic/statistics & numerical data , Surveys and Questionnaires , United States
14.
Craniomaxillofac Trauma Reconstr ; 6(4): 241-6, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24436768

ABSTRACT

Reduction of a fracture may be relatively easy with a simple, noncomminuted fracture along the zygomaticofrontal suture, zygomaticomaxillary buttress, or the inferior rim of the orbit. When one or more of these key landmarks is comminuted, it becomes more important to confirm that the fracture commonly seen between the greater wing of the sphenoid and the zygoma is properly repositioned. The zygomaticosphenoidal suture is an excellent landmark with a simple lateral orbital wall fracture (LOWF), but it may not be reliable in patients with a comminuted fracture. The purpose of this study is to determine the frequency that the lateral orbital wall (LOW) is a reliable landmark in the reduction of a zygoma fracture by determining the ratio between simple versus comminuted LOWF. To identify 100 patients with a LOWF, the authors reviewed consecutive midface computed tomography images of 877 patients performed over a 25-month period from one of our city's primary Level I trauma and teaching hospitals. A total of 121 LOWF were identified in 100 patients. In 60.3% of cases the facture was a simple, noncomminuted LOWF. In 39.7% of cases the fracture was comminuted (p = 0.023). Simple LOWF are significantly more common than comminuted fractures. In 39.7% of fractures the LOW is comminuted. This suggests that there are many fractures in which other modalities may be much more important to use to confirm the proper reduction of the zygoma.

15.
Plast Reconstr Surg ; 130(2): 343-353, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22495215

ABSTRACT

BACKGROUND: Venous thromboembolism is an important patient safety issue. The authors sought to compare the predictive capacity of the 2005 and 2010 Caprini Risk Assessment Models for perioperative venous thromboembolism risk. METHODS: The authors performed a retrospective, observational, crossover study using an established surgical outcomes database. A total of 3334 adult plastic surgery patients were identified. Patients were risk-stratified using both the 2005 and 2010 Caprini Risk Assessment Models. Each patient served as his or her own control, resulting in precise matching for identified and unidentified confounders. The outcome of interest was 60-day, symptomatic venous thromboembolism. The predictive capacities of the 2005 and 2010 Caprini risk scores were compared. RESULTS: Use of the 2010 Caprini Risk Assessment Model resulted in a systematic increase in the aggregate risk score. The median 2010 Caprini score was significantly higher than the median 2005 Caprini score (6 versus 5, p<0.001). When compared with the 2010 model, the 2005 Caprini Risk Assessment Model was able to better separate the lowest and highest risk patients from one another. Patients classified as "super-high" risk (Caprini score>8) using the 2005 Caprini Risk Assessment Model were significantly more likely to have a 60-day venous thromboembolism event when compared with patients classified as super-high risk using the 2010 guidelines (5.85 percent versus 2.52 percent, p=0.021). CONCLUSIONS: When compared with the 2010 Caprini Risk Assessment Model, the 2005 Caprini Risk Assessment Model provides superior risk stratification. The 2005 Caprini Risk Assessment Model is the more appropriate method to risk-stratify plastic surgery patients for perioperative venous thromboembolism risk. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, II.


Subject(s)
Plastic Surgery Procedures , Postoperative Complications/etiology , Risk Assessment/methods , Venous Thromboembolism/etiology , Adolescent , Adult , Aged , Aged, 80 and over , Cross-Over Studies , Female , Follow-Up Studies , Health Status Indicators , Humans , Male , Middle Aged , Retrospective Studies , Risk Factors , Young Adult
16.
Oecologia ; 160(2): 387-98, 2009 May.
Article in English | MEDLINE | ID: mdl-19219460

ABSTRACT

The host specificity of insect parasitoids and herbivores is thought to be shaped by a suite of traits that mediate host acceptance and host suitability. We conducted laboratory experiments to identify mechanisms shaping the host specificity of the aphid parasitoid Binodoxys communis. Twenty species of aphids were exposed to B. communis females in microcosms, and detailed observations and rearing studies of 15 of these species were done to determine whether patterns of host use resulted from variation in factors such as host acceptance or variation in host suitability. Six species of aphids exposed to B. communis showed no signs of parasitism. Four of these species were not recognized as hosts and two effectively defended themselves from attack by B. communis. Other aphid species into which parasitoids laid eggs had low suitability as hosts. Parasitoid mortality occurred in the egg or early larval stages for some of these hosts but for others it occurred in late larval stages. Two hypotheses explaining low suitability were investigated in separate experiments: the presence of endosymbiotic bacteria conferring resistance to parasitoids, and aphids feeding on toxic plants. An association between resistance and endosymbiont infection was found in one species (Aphis craccivora), and evidence for the toxic plant hypothesis was found for the milkweed aphids Aphis asclepiadis and Aphis nerii. This research highlights the multifaceted nature of factors determining host specificity in parasitoids.


Subject(s)
Aphids/parasitology , Wasps/physiology , Animals , Aphids/genetics , Aphids/microbiology , Host-Parasite Interactions , Oviposition/physiology , Phylogeny , Reproduction/physiology , Species Specificity
17.
J Insect Physiol ; 55(4): 321-7, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19162033

ABSTRACT

The term 'idiobiont' refers to those parasitoid species that permanently paralyse their hosts during parasitism, causing the cessation of host growth and development. This is in contrast to koinobiont parasitoids, which allow their hosts to continue developing after being parasitized. While no koinobiont species induce permanent paralysis in their hosts, a minority of koinobionts induce a temporary paralysis that does not interfere with overall host growth and development. We characterized transient paralysis induction in two koinobiont aphid parasitoids in the genus Binodoxys (Hymenoptera: Aphidiinae). Both Binodoxys species induced transient paralysis in Aphis glycines, with paralysis time ranging between 4.5 and 8 min (depending upon parasitoid species and host instar). In a separate experiment, B. communis was capable of inducing transient paralysis in nine aphid species. We addressed two hypotheses potentially explaining the adaptive value of temporary host paralysis in experiments using A. nerii, which is readily accepted but engages in strong defensive behaviour. The first hypothesis is that paralysis increases oviposition success by interfering with host defences and the second is that it aids in the avoidance of self-superparasitism. Paralysed aphids were more likely to be rejected by B. communis than were aphids that had never been stung or that had recovered from paralysis. This result supports the avoidance-of-self-superparasitism hypothesis and is inconsistent with the hypothesis that transient paralysis increases oviposition success of B. communis.


Subject(s)
Aphids/physiology , Aphids/parasitology , Behavior, Animal/physiology , Paralysis , Animals , Host-Parasite Interactions
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